Local work

dCommon/Implementation.h

@@ -0,0 +1,92 @@
+#ifndef __IMPLEMENTATION_H__
+#define __IMPLEMENTATION_H__
+
+#include <functional>
+#include <optional>
+
+/**
+ * @brief A way to defer the implementation of an action.
+ * 
+ * @tparam R The result of the action.
+ * @tparam T The types of the arguments that the implementation requires.
+ */
+template <typename R, typename... T>
+class Implementation {
+public:
+	typedef std::function<std::optional<R>(T...)> ImplementationFunction;
+
+	/**
+	 * @brief Sets the implementation of the action.
+	 * 
+	 * @param implementation The implementation of the action.
+	 */
+	void SetImplementation(const ImplementationFunction& implementation) {
+		this->implementation = implementation;
+	}
+
+	/**
+	 * @brief Clears the implementation of the action.
+	 */
+	void ClearImplementation() {
+		implementation.reset();
+	}
+
+	/**
+	 * @brief Checks if the implementation is set.
+	 * 
+	 * @return true If the implementation is set.
+	 * @return false If the implementation is not set.
+	 */
+	bool IsSet() const {
+		return implementation.has_value();
+	}
+
+	/**
+	 * @brief Executes the implementation if it is set.
+	 * 
+	 * @param args The arguments to pass to the implementation.
+	 * @return std::optional<R> The optional result of the implementation. If the result is not set, it indicates that the default action should be taken.
+	 */
+	std::optional<R> Execute(T... args) const {
+		return IsSet() ? implementation.value()(args...) : std::nullopt;
+	}
+
+	/**
+	 * @brief Exectues the implementation if it is set, otherwise returns a default value.
+	 * 
+	 * @param args The arguments to pass to the implementation.
+	 * @param defaultValue The default value to return if the implementation is not set or should not be deferred.
+	 */
+	R ExecuteWithDefault(T... args, const R& defaultValue) const {
+		return Execute(args...).value_or(defaultValue);
+	}
+
+	/**
+	 * = operator overload.
+	 */
+	Implementation& operator=(const Implementation& other) {
+		implementation = other.implementation;
+		return *this;
+	}
+
+	/**
+	 * = operator overload.
+	 */
+	Implementation& operator=(const ImplementationFunction& implementation) {
+		this->implementation = implementation;
+		return *this;
+	}
+
+	/**
+	 * () operator overload.
+	 */
+	std::optional<R> operator()(T... args) {
+		return !IsSet() ? std::nullopt : implementation(args...);
+	}
+
+private:
+	std::optional<ImplementationFunction> implementation;
+
+};
+
+#endif  //!__IMPLEMENTATION_H__

dCommon/Observable.h

@@ -0,0 +1,73 @@
+#ifndef __OBSERVABLE_H__
+#define __OBSERVABLE_H__
+
+#include <vector>
+#include <functional>
+
+/**
+ * @brief An event which can be observed by multiple observers.
+ * 
+ * @tparam T The types of the arguments to be passed to the observers.
+ */
+template <typename... T>
+class Observable {
+public:
+	typedef std::function<void(T...)> Observer;
+
+	/**
+	 * @brief Adds an observer to the event.
+	 * 
+	 * @param observer The observer to add.
+	 */
+	void AddObserver(const Observer& observer) {
+		observers.push_back(observer);
+	}
+
+	/**
+	 * @brief Removes an observer from the event.
+	 * 
+	 * @param observer The observer to remove.
+	 */
+	void RemoveObserver(const Observer& observer) {
+		observers.erase(std::remove(observers.begin(), observers.end(), observer), observers.end());
+	}
+
+	/**
+	 * @brief Notifies all observers of the event.
+	 * 
+	 * @param args The arguments to pass to the observers.
+	 */
+	void Notify(T... args) {
+		for (const auto& observer : observers) {
+			observer(args...);
+		}
+	}
+
+	/**
+	 * += operator overload.
+	 */
+	Observable& operator+=(const Observer& observer) {
+		AddObserver(observer);
+		return *this;
+	}
+
+	/**
+	 * -= operator overload.
+	 */
+	Observable& operator-=(const Observer& observer) {
+		RemoveObserver(observer);
+		return *this;
+	}
+	
+	/**
+	 * () operator overload.
+	 */
+	void operator()(T... args) {
+		Notify(args...);
+	}
+
+private:
+	std::vector<Observer> observers;
+};
+
+#endif  //!__OBSERVABLE_H__

dCommon/dConfig.cpp

@@ -1,6 +1,7 @@
 #include "dConfig.h"
 
 #include <sstream>
+#include <algorithm>
 
 #include "BinaryPathFinder.h"
 #include "GeneralUtils.h"

dGame/AdditionalEntityData.cpp

@@ -0,0 +1,677 @@
+#include "AdditionalEntityData.h"
+
+#include "NejlikaData.h"
+
+#include <DestroyableComponent.h>
+#include <LevelProgressionComponent.h>
+#include <InventoryComponent.h>
+#include <BaseCombatAIComponent.h>
+#include <TeamManager.h>
+#include <ControllablePhysicsComponent.h>
+#include <Item.h>
+
+#include <queue>
+
+using namespace nejlika;
+
+float nejlika::AdditionalEntityData::CalculateModifier(ModifierType type, ModifierOperator op, bool resistance) const
+{
+	float total = 0;
+
+	for (const auto& modifier : activeModifiers) {
+		if (modifier.GetConvertTo() != ModifierType::Invalid) {
+			continue;
+		}
+
+		if (modifier.GetType() != type || modifier.GetOperator() != op || modifier.IsResistance() != resistance) {
+			continue;
+		}
+
+		total += modifier.GetValue();
+	}
+
+	return total;
+}
+
+float nejlika::AdditionalEntityData::CalculateModifier(ModifierType type, const std::vector<ModifierInstance>& additionalModifiers, ModifierOperator op, bool resistance) const {
+	float total = 0;
+
+	for (const auto& modifier : additionalModifiers) {
+		if (modifier.GetConvertTo() != ModifierType::Invalid) {
+			continue;
+		}
+
+		if (modifier.GetType() != type || modifier.GetOperator() != op || modifier.IsResistance() != resistance) {
+			continue;
+		}
+
+		total += modifier.GetValue();
+	}
+
+	return total + CalculateModifier(type, op, resistance);
+}
+
+float nejlika::AdditionalEntityData::CalculateModifier(ModifierType type, int32_t level) const
+{
+	const auto templateDataOpt = NejlikaData::GetEntityTemplate(lot);
+
+	if (!templateDataOpt.has_value()) {
+		return 0;
+	}
+
+	const auto& templateData = *templateDataOpt.value();
+
+	const auto scaler = templateData.GetScaler(type, false, level);
+
+	float additive = CalculateModifier(type, ModifierOperator::Additive, false);
+
+	if (scaler != 0 && additive >= scaler) {
+		additive -= scaler;
+	}
+
+	float multiplicative = CalculateModifier(type, ModifierOperator::Multiplicative, false);
+
+	return (scaler + additive) * (1 + multiplicative / 100);
+}
+
+float nejlika::AdditionalEntityData::CalculateModifier(ModifierType type) const {
+	return CalculateModifier(type, level);
+}
+
+float nejlika::AdditionalEntityData::CalculateFinalModifier(ModifierType type, const std::vector<ModifierInstance>& additionalModifiers, int32_t level) const
+{
+	const auto templateDataOpt = NejlikaData::GetEntityTemplate(lot);
+
+	if (!templateDataOpt.has_value()) {
+		return 0;
+	}
+
+	const auto& templateData = *templateDataOpt.value();
+
+	const auto scaler = templateData.GetScaler(type, false, level);
+
+	float additive = CalculateModifier(type, additionalModifiers, ModifierOperator::Additive, false);
+	
+	if (scaler != 0 && additive >= scaler) {
+		additive -= scaler;
+	}
+	
+	float multiplicative = CalculateModifier(type, additionalModifiers, ModifierOperator::Multiplicative, false);
+
+	static const std::unordered_set<ModifierType> elementalDamage = {
+		ModifierType::Fire,
+		ModifierType::Cold,
+		ModifierType::Lightning
+	};
+
+	if (type == ModifierType::Health) {
+		if (lot == 1) additive += 25;
+		additive += CalculateModifier(ModifierType::Physique, additionalModifiers, ModifierOperator::Additive, false) * 2.5f;
+		additive += CalculateModifier(ModifierType::Cunning, additionalModifiers, ModifierOperator::Additive, false) * 1.0f;
+		additive += CalculateModifier(ModifierType::Spirit, additionalModifiers, ModifierOperator::Additive, false) * 1.0f;
+	}
+	else if (type == ModifierType::Imagination) {
+		additive += CalculateModifier(ModifierType::Spirit, additionalModifiers, ModifierOperator::Additive, false) * 2.0f;
+	}
+	else if (type == ModifierType::Seperation || type == ModifierType::InternalDisassembly || type == ModifierType::Physical) {
+		multiplicative += CalculateModifier(ModifierType::Cunning, additionalModifiers, ModifierOperator::Additive, false) * 0.33f;
+	}
+	else if (type == ModifierType::Pierce) {
+		multiplicative += CalculateModifier(ModifierType::Cunning, additionalModifiers, ModifierOperator::Additive, false) * 0.285f;
+	}
+	else if (nejlika::IsOverTimeType(type) || nejlika::IsNormalDamageType(type)) {
+		multiplicative += CalculateModifier(ModifierType::Spirit, additionalModifiers, ModifierOperator::Additive, false) * 0.33f;
+	}
+	else if (type == ModifierType::ImaginationRegen) {
+		const auto spirit = CalculateModifier(ModifierType::Spirit, additionalModifiers, ModifierOperator::Additive, false);
+		additive += spirit * 0.01f + 1;
+		multiplicative += spirit * 0.25f;
+	}
+	else if (type == ModifierType::HealthRegen) {
+		const auto physique = CalculateModifier(ModifierType::Physique, additionalModifiers, ModifierOperator::Additive, false);
+		additive += physique * 0.04f;
+	}
+	else if (type == ModifierType::Defensive) {
+		additive += CalculateModifier(ModifierType::Physique, additionalModifiers, ModifierOperator::Additive, false) * 0.5f;
+		if (lot == 1) additive += level * 10;
+	}
+	else if (type == ModifierType::Offensive) {
+		additive += CalculateModifier(ModifierType::Cunning, additionalModifiers, ModifierOperator::Additive, false) * 0.5f;
+		if (lot == 1) additive += level * 10;
+	}
+
+	if (elementalDamage.contains(type)) {
+		additive += CalculateModifier(ModifierType::Elemental, additionalModifiers, ModifierOperator::Additive, false) / elementalDamage.size();
+		multiplicative += CalculateModifier(ModifierType::Elemental, additionalModifiers, ModifierOperator::Multiplicative, false) / elementalDamage.size();
+	}
+
+	if (nejlika::IsNormalDamageType(type) || nejlika::IsOverTimeType(type)) {
+		additive += CalculateModifier(ModifierType::Damage, additionalModifiers, ModifierOperator::Additive, false);
+		multiplicative += CalculateModifier(ModifierType::Damage, additionalModifiers, ModifierOperator::Multiplicative, false);
+	}
+
+	float total = (scaler + additive) * (1 + multiplicative / 100);
+
+	return total;
+}
+
+float nejlika::AdditionalEntityData::CalculateResistance(ModifierType type) const
+{
+	type = nejlika::GetResistanceType(type);
+
+	return CalculateModifier(type, ModifierOperator::Multiplicative, true);
+}
+
+float nejlika::AdditionalEntityData::CalculateMultiplier(ModifierType type) const
+{
+	return 100 + CalculateModifier(type, ModifierOperator::Multiplicative, false);
+}
+
+std::vector<ModifierInstance> nejlika::AdditionalEntityData::TriggerUpgradeItems(UpgradeTriggerType triggerType, const TriggerParameters& params) {
+	auto* entity = Game::entityManager->GetEntity(id);
+
+	if (entity == nullptr) {
+		return {};
+	}
+
+	auto* inventoryComponent = entity->GetComponent<InventoryComponent>();
+
+	if (inventoryComponent == nullptr) {
+		return {};
+	}
+
+	std::vector<ModifierInstance> result;
+
+	for (const auto& itemID : upgradeItems) {
+		auto* item = inventoryComponent->FindItemById(itemID);
+
+		if (item == nullptr) {
+			continue;
+		}
+
+		const auto upgradeDataOpt = NejlikaData::GetUpgradeTemplate(item->GetLot());
+
+		if (!upgradeDataOpt.has_value()) {
+			continue;
+		}
+
+		const auto& upgradeData = *upgradeDataOpt.value();
+
+		const auto modifiers = upgradeData.Trigger(item->GetCount(), triggerType, id, params);
+
+		result.insert(result.end(), modifiers.begin(), modifiers.end());
+	}
+
+	return result;
+}
+
+std::vector<ModifierInstance> nejlika::AdditionalEntityData::TriggerUpgradeItems(UpgradeTriggerType triggerType) {
+	return TriggerUpgradeItems(triggerType, {});
+}
+
+void nejlika::AdditionalEntityData::InitializeSkills() {
+	auto* entity = Game::entityManager->GetEntity(id);
+
+	if (entity == nullptr) {
+		return;
+	}
+
+	auto* inventoryComponent = entity->GetComponent<InventoryComponent>();
+
+	if (inventoryComponent == nullptr) {
+		return;
+	}
+	
+	struct entry {
+		LWOOBJID id;
+		int32_t priority;
+
+		entry(LWOOBJID id, int32_t priority) : id(id), priority(priority) {}
+	};
+
+	std::vector<entry> items;
+
+	for (const auto& itemID : upgradeItems) {
+		auto* item = inventoryComponent->FindItemById(itemID);
+
+		if (item == nullptr) {
+			continue;
+		}
+		
+		const auto priority = item->GetSlot();
+
+		items.push_back(entry(itemID, priority));
+	}
+
+	std::sort(items.begin(), items.end(), [](const entry& a, const entry& b) {
+		return a.priority < b.priority;
+	});
+
+	for (const auto& item : items) {
+		AddSkills(item.id);
+	}
+}
+
+void nejlika::AdditionalEntityData::AddSkills(LWOOBJID item) {
+	if (!upgradeItems.contains(item)) {
+		return;
+	}
+
+	auto* entity = Game::entityManager->GetEntity(id);
+
+	if (entity == nullptr) {
+		return;
+	}
+
+	auto* inventoryComponent = entity->GetComponent<InventoryComponent>();
+
+	if (inventoryComponent == nullptr) {
+		return;
+	}
+
+	auto* itemData = inventoryComponent->FindItemById(item);
+
+	if (itemData == nullptr) {
+		return;
+	}
+
+	const auto upgradeDataOpt = NejlikaData::GetUpgradeTemplate(itemData->GetLot());
+
+	if (!upgradeDataOpt.has_value()) {
+		return;
+	}
+
+	const auto& upgradeData = *upgradeDataOpt.value();
+
+	LOG("Adding skills for item %i", id);
+
+	upgradeData.AddSkills(id);
+}
+
+void nejlika::AdditionalEntityData::RemoveSkills(LOT lot) {
+	const auto upgradeDataOpt = NejlikaData::GetUpgradeTemplate(lot);
+
+	if (!upgradeDataOpt.has_value()) {
+		return;
+	}
+
+	const auto& upgradeData = *upgradeDataOpt.value();
+
+	LOG("Removing skills for item %i", id);
+
+	upgradeData.RemoveSkills(id);
+}
+
+std::vector<ModifierInstance> nejlika::AdditionalEntityData::CalculateMainWeaponDamage() {
+	auto* entity = Game::entityManager->GetEntity(id);
+
+	if (entity == nullptr) {
+		return {};
+	}
+
+	auto* inventoryComponent = entity->GetComponent<InventoryComponent>();
+
+	if (inventoryComponent == nullptr) {
+		return {};
+	}
+
+	Item* mainWeapon = nullptr;
+
+	for (const auto& [location, item] : inventoryComponent->GetEquippedItems()) {
+		if (location == "special_r") {
+			mainWeapon = inventoryComponent->FindItemById(item.id);
+			break;
+		}
+	}
+
+	if (mainWeapon == nullptr) {
+		return {};
+	}
+
+	const auto additionalItemDataOpt = NejlikaData::GetAdditionalItemData(mainWeapon->GetId());
+
+	if (!additionalItemDataOpt.has_value()) {
+		return {};
+	}
+
+	const auto& additionalItemData = *additionalItemDataOpt.value();
+
+	std::vector<ModifierInstance> result;
+
+	for (const auto& modifier : additionalItemData.GetModifierInstances()) {
+		if (nejlika::IsNormalDamageType(modifier.GetType()) || nejlika::IsOverTimeType(modifier.GetType()) || nejlika::IsDurationType(modifier.GetType())) {
+			if (modifier.GetOperator() == ModifierOperator::Additive && modifier.GetUpgradeName().empty()) {
+				result.push_back(modifier);
+			}
+		}
+	}
+
+	return result;
+}
+
+void nejlika::AdditionalEntityData::RollStandardModifiers(int32_t level) {
+	standardModifiers.clear();
+
+	const auto templateDataOpt = NejlikaData::GetEntityTemplate(lot);
+
+	if (templateDataOpt.has_value()) {
+		const auto& templateData = *templateDataOpt.value();
+
+		const auto modifiers = templateData.GenerateModifiers(level);
+
+		standardModifiers.insert(standardModifiers.end(), modifiers.begin(), modifiers.end());
+	}
+
+	const auto objectDataVec = NejlikaData::GetModifierNameTemplates(ModifierNameType::Object);
+
+	for (const auto& objectData : objectDataVec) {
+		if (objectData.GetLOT() != lot) {
+			continue;
+		}
+
+		const auto modifiers = objectData.GenerateModifiers(level);
+
+		standardModifiers.insert(standardModifiers.end(), modifiers.begin(), modifiers.end());
+	}
+}
+
+void nejlika::AdditionalEntityData::TriggerPassiveRegeneration() {
+	auto* entity = Game::entityManager->GetEntity(id);
+
+	if (entity == nullptr) {
+		return;
+	}
+
+	auto* destroyable = entity->GetComponent<DestroyableComponent>();
+
+	if (destroyable == nullptr) {
+		return;
+	}
+
+	const auto healthRegen = CalculateFinalModifier(ModifierType::HealthRegen, {}, level);
+	const auto imaginationRegen = CalculateFinalModifier(ModifierType::ImaginationRegen, {}, level);
+
+	if (healthRegen > 0) {
+		destroyable->SetHealth(std::min(destroyable->GetHealth() + static_cast<int32_t>(healthRegen), static_cast<int32_t>(destroyable->GetMaxHealth())));
+	}
+
+	if (imaginationRegen > 0) {
+		destroyable->SetImagination(std::min(destroyable->GetImagination() + static_cast<int32_t>(imaginationRegen), static_cast<int32_t>(destroyable->GetMaxImagination())));
+	}
+
+	Game::entityManager->SerializeEntity(entity);
+
+	// Trigger it again in 1 second
+	entity->AddCallbackTimer(1.0f, [this]() {
+		TriggerPassiveRegeneration();
+	});
+}
+
+float nejlika::AdditionalEntityData::CalculateMultiplier(ModifierType type, const std::vector<ModifierInstance>& additionalModifiers) const {
+    return 100 + CalculateModifier(type, additionalModifiers, ModifierOperator::Multiplicative, false);
+}
+
+std::unordered_map<ModifierType, std::unordered_map<ModifierType, float>> nejlika::AdditionalEntityData::CalculateDamageConversion(std::vector<ModifierInstance>& additionalModifiers) const {
+	std::unordered_map<ModifierType, std::unordered_map<ModifierType, float>> conversion;
+
+	for (const auto& modifier : activeModifiers) {
+		if (modifier.GetConvertTo() == ModifierType::Invalid) {
+			continue;
+		}
+
+		conversion[modifier.GetType()][modifier.GetConvertTo()] += modifier.GetValue();
+	}
+
+	for (const auto& modifier : additionalModifiers) {
+		if (modifier.GetConvertTo() == ModifierType::Invalid) {
+			continue;
+		}
+
+		conversion[modifier.GetType()][modifier.GetConvertTo()] += modifier.GetValue();
+	}
+
+	// Third pass: adjust bidirectional conversions
+	auto copy = conversion; // Create a copy to iterate over
+	for (const auto& [type, convertMap] : copy) {
+		for (const auto& [convertTo, value] : convertMap) {
+			if (conversion[convertTo][type] > 0) {
+				if (value > conversion[convertTo][type]) {
+					conversion[type][convertTo] -= conversion[convertTo][type];
+					conversion[convertTo][type] = 0; // Ensure no negative values
+				} else {
+					conversion[convertTo][type] -= value;
+					conversion[type][convertTo] = 0; // Ensure no negative values
+				}
+			}
+		}
+	}
+
+	// Fourth pass: if a type converts to multiple types, and the sum of the conversion values is greater than 100, normalize the values
+	for (const auto& [type, convertMap] : conversion) {
+		float sum = 0;
+		for (const auto& [convertTo, value] : convertMap) {
+			sum += value;
+		}
+
+		if (sum > 100) {
+			for (const auto& [convertTo, value] : convertMap) {
+				conversion[type][convertTo] = value / sum * 100;
+			}
+		}
+	}
+
+	return conversion;
+}
+
+void nejlika::AdditionalEntityData::ApplyToEntity() {
+	const auto templateDataOpt = NejlikaData::GetEntityTemplate(lot);
+
+	if (!templateDataOpt.has_value()) {
+		return;
+	}
+
+	const auto& templateData = *templateDataOpt.value();
+
+	auto* entity = Game::entityManager->GetEntity(id);
+
+	if (entity == nullptr) {
+		return;
+	}
+
+	auto* destroyable = entity->GetComponent<DestroyableComponent>();
+
+	if (destroyable == nullptr) {
+		return;
+	}
+
+	auto* levelProgression = entity->GetComponent<LevelProgressionComponent>();
+
+	if (levelProgression != nullptr) {
+		this->level = levelProgression->GetLevel();
+	}
+	else {
+		this->level = templateData.GetMinLevel();
+	}
+	
+	if (!initialized) {
+		RollStandardModifiers(level);
+	}
+
+	activeModifiers = standardModifiers;
+
+	auto* inventoryComponent = entity->GetComponent<InventoryComponent>();
+
+	if (inventoryComponent) {
+		for (const auto& [location, item] : inventoryComponent->GetEquippedItems()) {
+			const auto itemDataOpt = NejlikaData::GetAdditionalItemData(item.id);
+
+			if (!itemDataOpt.has_value()) {
+				continue;
+			}
+
+			const auto& itemData = *itemDataOpt.value();
+
+			const auto& itemModifiers = itemData.GetModifierInstances();
+
+			for (const auto& modifier : itemModifiers) {
+				if (nejlika::IsNormalDamageType(modifier.GetType()) || nejlika::IsOverTimeType(modifier.GetType()) || nejlika::IsDurationType(modifier.GetType())) {
+					if (modifier.GetOperator() == ModifierOperator::Additive && modifier.GetUpgradeName().empty()) {
+						continue;
+					}
+				}
+
+				activeModifiers.push_back(modifier);
+			}
+		}
+
+		for (const auto& upgradeItem : upgradeItems) {
+			auto* item = inventoryComponent->FindItemById(upgradeItem);
+
+			if (item == nullptr) {
+				continue;
+			}
+
+			LOG("Applying upgrade item %i", item->GetLot());
+
+			const auto itemDataOpt = NejlikaData::GetUpgradeTemplate(item->GetLot());
+
+			if (!itemDataOpt.has_value()) {
+				LOG("Upgrade item %i has no data", item->GetLot());
+				continue;
+			}
+
+			const auto& itemData = *itemDataOpt.value();
+
+			const auto& itemModifiers = itemData.GenerateModifiers(item->GetCount());
+
+			LOG("Upgrade item %i has %i modifiers with level %i", item->GetLot(), itemModifiers.size(), item->GetCount());
+
+			activeModifiers.insert(activeModifiers.end(), itemModifiers.begin(), itemModifiers.end());
+		}
+	}
+
+	destroyable->SetMaxHealth(static_cast<int32_t>(CalculateFinalModifier(ModifierType::Health, {}, level)));
+	destroyable->SetMaxArmor(static_cast<int32_t>(CalculateFinalModifier(ModifierType::Armor, {}, level)));
+	//if (!entity->IsPlayer()) {
+		destroyable->SetMaxImagination(static_cast<int32_t>(CalculateFinalModifier(ModifierType::Imagination, {}, level)));
+	//}
+
+	if (initialized) {
+		return;
+	}
+
+	destroyable->SetHealth(destroyable->GetMaxHealth());
+	destroyable->SetArmor(destroyable->GetMaxArmor());
+
+	//if (!entity->IsPlayer()) {
+		destroyable->SetImagination(destroyable->GetMaxImagination());
+	//}
+
+	if (entity->IsPlayer()) {
+		auto* controllablePhysicsComponent = entity->GetComponent<ControllablePhysicsComponent>();
+		if (controllablePhysicsComponent) controllablePhysicsComponent->SetSpeedMultiplier(CalculateMultiplier(ModifierType::Speed) / 100.0f);
+	}
+
+	TriggerPassiveRegeneration();
+
+	initialized = true;
+}
+
+void nejlika::AdditionalEntityData::CheckForRescale(AdditionalEntityData* other) {
+	auto* entity = Game::entityManager->GetEntity(id);
+
+	if (entity == nullptr) {
+		return;
+	}
+
+	if (entity->IsPlayer()) {
+		return;
+	}
+
+	auto* baseCombat = entity->GetComponent<BaseCombatAIComponent>();
+
+	if (baseCombat == nullptr) {
+		return;
+	}
+
+	const auto& threats = baseCombat->GetThreats();
+
+	int32_t totalThreats = 0;
+	int32_t totalLevel = 0;
+
+	for (const auto& [threat, _] : threats) {
+		const auto threatEntityOpt = NejlikaData::GetAdditionalEntityData(threat);
+
+		if (!threatEntityOpt.has_value()) {
+			continue;
+		}
+
+		const auto& threatEntity = *threatEntityOpt.value();
+
+		if (other->id == threatEntity.id) {
+			continue;
+		}
+
+		totalLevel += threatEntity.level;
+		totalThreats++;
+	}
+
+	if (other != nullptr) {
+		totalLevel += other->level;
+		totalThreats++;
+
+		auto* team = TeamManager::Instance()->GetTeam(other->id);
+
+		if (team != nullptr) {
+			for (const auto& member : team->members) {
+				const auto memberEntityOpt = NejlikaData::GetAdditionalEntityData(member);
+
+				if (!memberEntityOpt.has_value()) {
+					continue;
+				}
+
+				const auto& memberEntity = *memberEntityOpt.value();
+
+				if (other->id == memberEntity.id) {
+					continue;
+				}
+
+				totalLevel += memberEntity.level;
+				totalThreats++;
+			}
+		}
+	}
+
+	if (totalThreats == 0) {
+		return;
+	}
+
+	const auto averageLevel = totalLevel / totalThreats;
+
+	// Can't rescale to a lower level
+	if (averageLevel <= level) {
+		return;
+	}
+
+	level = averageLevel;
+
+	auto* destroyable = entity->GetComponent<DestroyableComponent>();
+
+	if (destroyable == nullptr) {
+		return;
+	}
+
+	float healthPercentage = destroyable->GetMaxHealth() == 0 ? 1 : static_cast<float>(destroyable->GetHealth()) / destroyable->GetMaxHealth();
+	float armorPercentage = destroyable->GetMaxArmor() == 0 ? 1 : static_cast<float>(destroyable->GetArmor()) / destroyable->GetMaxArmor();
+	float imaginationPercentage = destroyable->GetMaxImagination() == 0 ? 1 : static_cast<float>(destroyable->GetImagination()) / destroyable->GetMaxImagination();
+
+	RollStandardModifiers(level);
+
+	ApplyToEntity();
+
+	destroyable->SetHealth(static_cast<int32_t>(destroyable->GetMaxHealth() * healthPercentage));
+	destroyable->SetArmor(static_cast<int32_t>(destroyable->GetMaxArmor() * armorPercentage));
+	destroyable->SetImagination(static_cast<int32_t>(destroyable->GetMaxImagination() * imaginationPercentage));
+
+	LOG("Rescaled entity %i to level %d", entity->GetLOT(), level);
+}

dGame/AdditionalEntityData.h

@@ -0,0 +1,109 @@
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+#include "Entity.h"
+
+#include "ModifierInstance.h"
+#include "EntityTemplate.h"
+#include "UpgradeTriggerType.h"
+#include "TriggerParameters.h"
+
+#include <unordered_set>
+
+namespace nejlika
+{
+
+class AdditionalEntityData
+{
+public:
+	AdditionalEntityData() = default;
+
+	AdditionalEntityData(LWOOBJID id, LOT lot) : id(id), lot(lot) {}
+
+	float CalculateModifier(ModifierType type, ModifierOperator op, bool resistance) const;
+
+	float CalculateModifier(ModifierType type, const std::vector<ModifierInstance>& additionalModifiers, ModifierOperator op, bool resistance) const;
+
+	float CalculateModifier(ModifierType type, int32_t level) const;
+
+	float CalculateModifier(ModifierType type) const;
+
+	float CalculateFinalModifier(ModifierType type, const std::vector<ModifierInstance>& additionalModifiers, int32_t level) const;
+
+	float CalculateResistance(ModifierType type) const;
+
+	/**
+	 * @brief Calculate the multiplier for a given modifier type. With a base value of 100 (%).
+	 * 
+	 * @param type The modifier type.
+	 * @return The multiplier.
+	 */
+	float CalculateMultiplier(ModifierType type) const;
+
+	/**
+	 * @brief Calculate the multiplier for a given modifier type. With a base value of 100 (%).
+	 * 
+	 * @param type The modifier type.
+	 * @param additionalModifiers Additional modifiers to apply.
+	 * @return The multiplier.
+	 */
+	float CalculateMultiplier(ModifierType type, const std::vector<ModifierInstance>& additionalModifiers) const;
+
+	/**
+	 * @brief Calculate damage conversation mapping.
+	 * 
+	 * @param additionalModifiers Additional modifiers to apply.
+	 * 
+	 * @return The damage conversion mapping.
+	 */
+	std::unordered_map<ModifierType, std::unordered_map<ModifierType, float>> CalculateDamageConversion(std::vector<ModifierInstance>& additionalModifiers) const;
+
+	void ApplyToEntity();
+
+	void CheckForRescale(AdditionalEntityData* other);
+
+	int32_t GetLevel() const { return level; }
+
+	LWOOBJID GetID() const { return id; }
+
+	LOT GetLOT() const { return lot; }
+
+	const std::unordered_set<LWOOBJID>& GetUpgradeItems() const { return upgradeItems; }
+
+	void AddUpgradeItem(LWOOBJID id) { upgradeItems.insert(id); }
+
+	void RemoveUpgradeItem(LWOOBJID id) { upgradeItems.erase(id); }
+
+	std::vector<ModifierInstance> TriggerUpgradeItems(UpgradeTriggerType triggerType, const TriggerParameters& params);
+
+	std::vector<ModifierInstance> TriggerUpgradeItems(UpgradeTriggerType triggerType);
+
+	void InitializeSkills();
+
+	void AddSkills(LWOOBJID item);
+	void RemoveSkills(LOT lot);
+
+	const std::vector<ModifierInstance>& GetActiveModifiers() const { return activeModifiers; }
+
+	std::vector<ModifierInstance> CalculateMainWeaponDamage();
+
+private:
+	void RollStandardModifiers(int32_t level);
+
+	void TriggerPassiveRegeneration();
+
+	bool initialized = false;
+
+	std::vector<ModifierInstance> standardModifiers;
+	std::vector<ModifierInstance> activeModifiers;
+	std::unordered_set<LWOOBJID> upgradeItems;
+
+	LWOOBJID id;
+	LOT lot;
+
+	int32_t level = 1;
+};
+
+}

dGame/AdditionalItemData.cpp

@@ -0,0 +1,240 @@
+#include "AdditionalItemData.h"
+
+#include "Item.h"
+#include "eItemType.h"
+#include "NejlikaData.h"
+
+using namespace nejlika;
+
+nejlika::AdditionalItemData::AdditionalItemData(Item* item)
+{
+	const auto& config = item->GetConfig();
+
+	for (const auto& entry : config)
+	{
+		if (entry->GetKey() != u"modifiers")
+		{
+			continue;
+		}
+
+		const auto str = entry->GetValueAsString();
+
+		if (str.empty())
+		{
+			continue;
+		}
+
+		try
+		{
+			const auto json = nlohmann::json::parse(str);
+
+			Load(json);
+		}
+		catch (const nlohmann::json::exception& e)
+		{
+			std::cout << "Failed to parse additional item data: " << e.what() << std::endl;
+		}
+	}
+}
+
+nejlika::AdditionalItemData::AdditionalItemData(const nlohmann::json& json) {
+	Load(json);
+}
+
+void nejlika::AdditionalItemData::Load(const nlohmann::json& json) {
+	if (json.contains("names"))
+	{
+		for (const auto& name : json["names"])
+		{
+			modifierNames.emplace_back(name);
+		}
+	}
+
+	if (json.contains("instances"))
+	{
+		for (const auto& instance : json["instances"])
+		{
+			modifierInstances.emplace_back(instance);
+		}
+	}
+}
+
+nlohmann::json nejlika::AdditionalItemData::ToJson() const {
+	nlohmann::json json;
+
+	json["names"] = nlohmann::json::array();
+
+	for (const auto& name : modifierNames)
+	{
+		json["names"].push_back(name.ToJson());
+	}
+
+	json["instances"] = nlohmann::json::array();
+
+	for (const auto& instance : modifierInstances)
+	{
+		json["instances"].push_back(instance.ToJson());
+	}
+
+	return json;
+}
+
+void nejlika::AdditionalItemData::Save(Item* item) {
+	auto& config = item->GetConfig();
+	
+	// Remove the old data
+	for (size_t i = 0; i < config.size(); i++)
+	{
+		if (config[i]->GetKey() == u"modifiers")
+		{
+			config.erase(config.begin() + i);
+			break;
+		}
+	}
+	
+	std::stringstream ss;
+
+	ss << ToJson().dump();
+
+	std::cout << ss.str() << std::endl;
+
+	config.push_back(new LDFData<std::string>(u"modifiers", ToJson().dump()));
+}
+
+void nejlika::AdditionalItemData::RollModifiers(Item* item, int32_t level) {
+	modifierNames.clear();
+	modifierInstances.clear();
+
+	const auto& info = item->GetInfo();
+
+	const auto itemType = static_cast<eItemType>(info.itemType);
+	const auto itemRarity = info.rarity == 0 ? 1 : info.rarity;
+
+	uint32_t rarityRollPrefix = 0;
+	uint32_t rarityRollSuffix = 0;
+
+	// Generate (itemRarity) amout of names and modifiers rolls, take the highest rarity. 0-1000
+	for (int i = 0; i < itemRarity; i++) {
+		auto roll = GeneralUtils::GenerateRandomNumber<uint32_t>() % 1000;
+
+		if (roll > rarityRollPrefix) {
+			rarityRollPrefix = roll;
+		}
+		
+		roll = GeneralUtils::GenerateRandomNumber<uint32_t>() % 1000;
+
+		if (roll > rarityRollSuffix) {
+			rarityRollSuffix = roll;
+		}
+	}
+	
+	const auto& templates = NejlikaData::GetModifierNameTemplates();
+
+	std::vector<ModifierNameTemplate> availablePrefixes;
+	std::vector<ModifierNameTemplate> availableSuffixes;
+
+	for (const auto& [type, nameTemplates] : templates) {
+		for (const auto& nameTemplate : nameTemplates) {
+			if (type != ModifierNameType::Prefix && type != ModifierNameType::Suffix) {
+				continue;
+			}
+
+			if (nameTemplate.GetMinLevel() > level || nameTemplate.GetMaxLevel() < level) {
+				continue;
+			}
+
+			const auto rarity = nameTemplate.GetRarity();
+
+			if (rarity == ModifierRarity::Common) {
+				continue;
+			}
+
+			const auto& itemTypes = nameTemplate.GetItemTypes();
+
+			if (std::find(itemTypes.begin(), itemTypes.end(), itemType) == itemTypes.end()) {
+				continue;
+			}
+			
+			/*
+				Uncommon: rarityRoll > 500,
+				Rare: rarityRoll > 900,
+				Epic: rarityRoll > 990,
+				Legendary: rarityRoll = 999
+			*/
+			const auto roll = type == ModifierNameType::Prefix ? rarityRollPrefix : rarityRollSuffix;
+
+			if (rarity == ModifierRarity::Uncommon && roll > 900) {
+				continue;
+			}
+			
+			if (rarity == ModifierRarity::Rare && (roll <= 900 || roll > 990)) {
+				continue;
+			}
+
+			if (rarity == ModifierRarity::Epic && (roll <= 990 || roll > 998)) {
+				continue;
+			}
+
+			if (rarity == ModifierRarity::Legendary && roll != 999) {
+				continue;
+			}
+
+			if (type == ModifierNameType::Prefix) {
+				availablePrefixes.push_back(nameTemplate);
+			}
+			else {
+				availableSuffixes.push_back(nameTemplate);
+			}
+		}
+	}
+
+	if (!availablePrefixes.empty()) {
+		const auto& prefix = availablePrefixes[GeneralUtils::GenerateRandomNumber<uint32_t>() % availablePrefixes.size()];
+
+		modifierNames.push_back(ModifierName(prefix));
+		
+		const auto modifiers = prefix.GenerateModifiers(level);
+
+		modifierInstances.insert(modifierInstances.end(), modifiers.begin(), modifiers.end());
+	}
+
+	if (!availableSuffixes.empty()) {
+		const auto& suffix = availableSuffixes[GeneralUtils::GenerateRandomNumber<uint32_t>() % availableSuffixes.size()];
+
+		modifierNames.push_back(ModifierName(suffix));
+
+		const auto modifiers = suffix.GenerateModifiers(level);
+
+		modifierInstances.insert(modifierInstances.end(), modifiers.begin(), modifiers.end());
+	}
+
+	const auto& itemTemplateVec = NejlikaData::GetModifierNameTemplates(ModifierNameType::Object);
+
+	std::vector<const ModifierNameTemplate*> availableObjects;
+
+	for (const auto& itemTemplate : itemTemplateVec) {
+		if (itemTemplate.GetMinLevel() > level || itemTemplate.GetMaxLevel() < level) {
+			continue;
+		}
+
+		if (itemTemplate.GetLOT() != static_cast<int32_t>(item->GetLot())) {
+			continue;
+		}
+
+		availableObjects.push_back(&itemTemplate);
+	}
+
+	if (availableObjects.empty()) {
+		Save(item);
+		return;
+	}
+
+	const auto& itemTemplate = *availableObjects[GeneralUtils::GenerateRandomNumber<uint32_t>() % availableObjects.size()];
+
+	const auto itemModifiers = itemTemplate.GenerateModifiers(level);
+
+	modifierInstances.insert(modifierInstances.end(), itemModifiers.begin(), itemModifiers.end());
+
+	Save(item);
+}
+

dGame/AdditionalItemData.h

@@ -0,0 +1,41 @@
+#pragma once
+
+#include <cstdint>
+
+#include "ModifierName.h"
+#include "ModifierInstance.h"
+
+#include "json.hpp"
+
+class Item;
+
+namespace nejlika
+{
+
+class AdditionalItemData
+{
+public:
+	AdditionalItemData() = default;
+
+	AdditionalItemData(Item* item);
+	
+	AdditionalItemData(const nlohmann::json& json);
+
+	nlohmann::json ToJson() const;
+
+	void Load(const nlohmann::json& json);
+
+	void Save(Item* item);
+
+	void RollModifiers(Item* item, int32_t level);
+
+	const std::vector<ModifierName>& GetModifierNames() const { return modifierNames; }
+	const std::vector<ModifierInstance>& GetModifierInstances() const { return modifierInstances; }
+
+private:
+	std::vector<ModifierName> modifierNames;
+	std::vector<ModifierInstance> modifierInstances;
+
+};
+
+}

dGame/CMakeLists.txt

@@ -6,7 +6,24 @@ set(DGAME_SOURCES "Character.cpp"
 		"TeamManager.cpp"
 		"TradingManager.cpp"
 		"User.cpp"
-		"UserManager.cpp")
+		"UserManager.cpp"
+		"ModifierTemplate.cpp"
+		"ModifierInstance.cpp"
+		"ModifierRarity.cpp"
+		"ModifierType.cpp"
+		"ModifierScale.cpp"
+		"ModifierName.cpp"
+		"ModifierNameTemplate.cpp"
+		"NejlikaData.cpp"
+		"AdditionalItemData.cpp"
+		"EntityTemplate.cpp"
+		"AdditionalEntityData.cpp"
+		"NejlikaHooks.cpp"
+		"UpgradeTemplate.cpp"
+		"UpgradeEffect.cpp"
+		"Lookup.cpp"
+		"NejlikaHelpers.cpp"
+		)
 
 include_directories(
 	${PROJECT_SOURCE_DIR}/dScripts

dGame/Entity.cpp

@@ -96,6 +96,9 @@
 #include "CDSkillBehaviorTable.h"
 #include "CDZoneTableTable.h"
 
+Observable<Entity*, const PositionUpdate&> Entity::OnPlayerPositionUpdate;
+Observable<Entity*> Entity::OnReadyForUpdates;
+
 Entity::Entity(const LWOOBJID& objectID, EntityInfo info, User* parentUser, Entity* parentEntity) {
 	m_ObjectID = objectID;
 	m_TemplateID = info.lot;
@@ -1778,6 +1781,12 @@ void Entity::SetOwnerOverride(const LWOOBJID value) {
 	m_OwnerOverride = value;
 }
 
+void Entity::SetPlayerReadyForUpdates() {
+	m_PlayerIsReadyForUpdates = true;
+
+	OnReadyForUpdates(this);
+}
+
 bool Entity::GetIsGhostingCandidate() const {
 	return m_IsGhostingCandidate;
 }
@@ -2133,6 +2142,8 @@ void Entity::ProcessPositionUpdate(PositionUpdate& update) {
 	Game::entityManager->QueueGhostUpdate(GetObjectID());
 
 	if (updateChar) Game::entityManager->SerializeEntity(this);
+
+	OnPlayerPositionUpdate.Notify(this, update);
 }
 
 const SystemAddress& Entity::GetSystemAddress() const {

dGame/Entity.h

@@ -11,6 +11,7 @@
 #include "NiQuaternion.h"
 #include "LDFFormat.h"
 #include "eKillType.h"
+#include "Observable.h"
 
 namespace Loot {
 	class Info;
@@ -116,7 +117,7 @@ public:
 
 	void SetOwnerOverride(LWOOBJID value);
 
-	void SetPlayerReadyForUpdates() { m_PlayerIsReadyForUpdates = true; }
+	void SetPlayerReadyForUpdates();
 
 	void SetObservers(int8_t value);
 
@@ -299,6 +300,13 @@ public:
 	// Scale will only be communicated to the client when the construction packet is sent
 	void SetScale(const float scale) { m_Scale = scale; };
 
+	/**
+	 * @brief The observable for player entity position updates.
+	 */
+	static Observable<Entity*, const PositionUpdate&> OnPlayerPositionUpdate;
+
+	static Observable<Entity*> OnReadyForUpdates;
+	
 protected:
 	LWOOBJID m_ObjectID;
 

dGame/EntityManager.cpp

@@ -26,6 +26,9 @@
 #include "GhostComponent.h"
 #include <ranges>
 
+Observable<Entity*> EntityManager::OnEntityCreated;
+Observable<Entity*> EntityManager::OnEntityDestroyed;
+
 // Configure which zones have ghosting disabled, mostly small worlds.
 std::vector<LWOMAPID> EntityManager::m_GhostingExcludedZones = {
 	// Small zones
@@ -138,6 +141,9 @@ Entity* EntityManager::CreateEntity(EntityInfo info, User* user, Entity* parentE
 		m_SpawnPoints.insert_or_assign(GeneralUtils::UTF16ToWTF8(spawnName), entity->GetObjectID());
 	}
 
+	// Notify observers that a new entity has been created
+	OnEntityCreated(entity);
+
 	return entity;
 }
 
@@ -161,6 +167,9 @@ void EntityManager::DestroyEntity(Entity* entity) {
 		DestructEntity(entity);
 	}
 
+	// Notify observers that an entity is about to be destroyed
+	OnEntityDestroyed(entity);
+
 	// Delete this entity at the end of the frame
 	ScheduleForDeletion(id);
 }

dGame/EntityManager.h

@@ -7,6 +7,7 @@
 #include <unordered_map>
 
 #include "dCommonVars.h"
+#include "Observable.h"
 
 class Entity;
 class EntityInfo;
@@ -72,6 +73,9 @@ public:
 	const bool GetHardcoreDropinventoryOnDeath() { return m_HardcoreDropinventoryOnDeath; };
 	const uint32_t GetHardcoreUscoreEnemiesMultiplier() { return m_HardcoreUscoreEnemiesMultiplier; };
 
+	static Observable<Entity*> OnEntityCreated;
+	static Observable<Entity*> OnEntityDestroyed;
+
 private:
 	void SerializeEntities();
 	void KillEntities();

dGame/EntityTemplate.cpp

@@ -0,0 +1,90 @@
+#include "EntityTemplate.h"
+
+#include <magic_enum.hpp>
+
+nejlika::EntityTemplate::EntityTemplate(const nlohmann::json& json) {
+	lot = json["lot"].get<LOT>();
+	minLevel = json.contains("min-level") ? json["min-level"].get<int32_t>() : 1;
+
+	for (const auto& scaler : json["scaling"])
+	{
+		EntityTemplateScaler s;
+
+		s.type = magic_enum::enum_cast<ModifierType>(scaler["type"].get<std::string>()).value();
+		s.isResistance = scaler.contains("resistance") && scaler["resistance"].get<bool>();
+		s.polynomial = scaler["polynomial"].get<std::vector<float>>();
+
+		scalers.push_back(s);
+	}
+}
+
+nlohmann::json nejlika::EntityTemplate::ToJson() const {
+	nlohmann::json json;
+
+	json["lot"] = lot;
+	json["min-level"] = minLevel;
+
+	nlohmann::json scalersJson;
+
+	for (const auto& scaler : scalers)
+	{
+		nlohmann::json s;
+
+		s["type"] = magic_enum::enum_name(scaler.type);
+		s["resistance"] = scaler.isResistance;
+		s["polynomial"] = scaler.polynomial;
+
+		scalersJson.push_back(s);
+	}
+
+	json["scaling"] = scalersJson;
+
+	return json;
+}
+
+float nejlika::EntityTemplate::GetScaler(ModifierType type, bool isResistance, int32_t level) const {
+	for (const auto& scaler : scalers)
+	{
+		if (scaler.type == type && scaler.isResistance == isResistance)
+		{
+			return CalculateScaler(scaler, level);
+		}
+	}
+
+	return 0.0f;
+}
+
+std::vector<nejlika::ModifierInstance> nejlika::EntityTemplate::GenerateModifiers(int32_t level) const {
+	std::vector<ModifierInstance> modifiers;
+
+	for (const auto& scaler : scalers)
+	{
+		ModifierInstance modifier(
+			scaler.type,
+			CalculateScaler(scaler, level),
+			ModifierOperator::Additive,
+			scaler.isResistance,
+			ModifierCategory::Player,
+			0,
+			"",
+			ModifierType::Invalid,
+			""
+		);
+
+		modifiers.push_back(modifier);
+	}
+
+	return modifiers;
+}
+
+float nejlika::EntityTemplate::CalculateScaler(const EntityTemplateScaler& scaler, int32_t level) const {
+	float result = 0.0f;
+
+	for (size_t i = 0; i < scaler.polynomial.size(); ++i)
+	{
+		result += scaler.polynomial[i] * std::pow(level, i);
+	}
+
+	return result;
+}
+

dGame/EntityTemplate.h

@@ -0,0 +1,47 @@
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+#include "Entity.h"
+#include "ModifierType.h"
+#include "ModifierInstance.h"
+
+#include "json.hpp"
+
+namespace nejlika
+{
+
+class EntityTemplate
+{
+public:
+	EntityTemplate() = default;
+
+	EntityTemplate(const nlohmann::json& json);
+
+	nlohmann::json ToJson() const;
+
+	LOT GetLOT() const { return lot; }
+
+	int32_t GetMinLevel() const { return minLevel; }
+
+	float GetScaler(ModifierType type, bool isResistance, int32_t level) const;
+
+	std::vector<ModifierInstance> GenerateModifiers(int32_t level) const;
+
+private:
+	struct EntityTemplateScaler
+	{
+		ModifierType type;
+		bool isResistance;
+		std::vector<float> polynomial;
+	};
+	
+	float CalculateScaler(const EntityTemplateScaler& scaler, int32_t level) const;
+
+	LOT lot;
+	std::vector<EntityTemplateScaler> scalers;
+	int32_t minLevel;
+};
+
+}

dGame/Lookup.cpp

@@ -0,0 +1,181 @@
+#include "Lookup.h"
+
+#include <fstream>
+
+#include "json.hpp"
+
+#include <iostream>
+
+using namespace nejlika;
+
+Lookup::Lookup(const std::filesystem::path& lookup)
+{
+    m_Lookup = lookup;
+
+    // Check if the file exists.
+    if (!std::filesystem::exists(lookup))
+    {
+        // Empty lookup
+        return;
+    }
+
+    // Read the json file
+    std::ifstream file(lookup);
+
+    std::string json((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
+
+    // Parse the json
+    auto doc = nlohmann::json::parse(json);
+
+
+    // The document is a map, so we can iterate over it.
+    for (const auto& [key, v] : doc.items()) {
+        if (v.is_number_integer())
+        {
+            m_LookupMap[key] = v.get<int64_t>();
+
+            continue;
+        }
+        
+        if (!v.is_object()) {
+            std::stringstream ss;
+
+            ss << "Invalid value for key \"" << key << "\" in lookup.";
+
+            throw std::runtime_error(ss.str());
+        }
+
+        // Get the data
+        auto data = v.get<nlohmann::json>();
+
+        // Get the id
+        auto id = data["id"].get<int64_t>();
+
+        m_LookupMap[key] = id;
+
+        // Get the metadata
+        auto metadata = data["metadata"].get<std::string>();
+
+        m_Metadata[key] = metadata;
+    }
+}
+
+nejlika::Lookup::Lookup(const Lookup &other)
+{
+    m_Lookup = other.m_Lookup;
+    m_LookupMap = other.m_LookupMap;
+    m_Metadata = other.m_Metadata;
+    m_CoreSymbols = other.m_CoreSymbols;
+}
+
+id Lookup::GetValue(const name& symbol) const
+{
+    id value;
+
+    if (IsCoreSymbol(symbol, value)) {
+        return value;
+    }
+
+    const auto& it = m_LookupMap.find(symbol);
+
+    if (it == m_LookupMap.end())
+    {
+        std::stringstream ss;
+
+        ss << "Symbol \"" << symbol << "\" does not exist in the lookup.";
+
+        throw std::runtime_error(ss.str());
+    }
+
+    return it->second;
+}
+
+bool nejlika::Lookup::Exists(const name &symbol) const
+{
+    return IsCoreSymbol(symbol) || (m_CoreSymbols.find(symbol) != m_CoreSymbols.end()) || (m_LookupMap.find(symbol) != m_LookupMap.end());
+}
+
+bool nejlika::Lookup::Exists(id value) const
+{
+    for (const auto& [k, v] : m_LookupMap)
+    {
+        if (v == value)
+        {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+const std::string& Lookup::GetMetadata(const name& symbol) const
+{
+    const auto& it = m_Metadata.find(symbol);
+
+    if (it == m_Metadata.end())
+    {
+        static std::string empty;
+
+        return empty;
+    }
+
+    return it->second;
+}
+
+const std::filesystem::path& Lookup::GetLookup() const
+{
+    return m_Lookup;
+}
+
+const std::unordered_map<name, id> &nejlika::Lookup::GetMap() const
+{
+    return m_LookupMap;
+}
+
+bool nejlika::Lookup::IsCoreSymbol(const name &symbol, id &value) const
+{
+    try {
+        value = std::stoi(symbol);
+
+        return true;
+    } catch (...) {
+        // cont...
+    }
+
+    if (!symbol.starts_with(core_prefix)) {
+        return false;
+    }
+
+    // Check in the core symbols
+    const auto& it = m_CoreSymbols.find(symbol);
+
+    if (it != m_CoreSymbols.end())
+    {
+        value = it->second;
+
+        return true;
+    }
+    
+    // In the format "core:<value>"
+    try {
+        value = std::stoi(symbol.substr(core_prefix.size() + 1));
+    } catch (...) {
+        return false;
+    }
+
+    return true;
+}
+
+bool nejlika::Lookup::IsCoreSymbol(const name &symbol)
+{
+    // Check if it can be converted to an integer
+    try {
+        [[maybe_unused]] auto value = std::stoi(symbol);
+
+        return true;
+    } catch (...) {
+        // cont...
+    }
+    
+    return symbol.starts_with(core_prefix);
+}

dGame/Lookup.h

@@ -0,0 +1,117 @@
+#pragma once
+
+#include <filesystem>
+#include <functional>
+#include <cstdint>
+#include <unordered_map>
+#include <unordered_set>
+
+namespace nejlika {
+
+typedef std::string name;
+typedef int id;
+
+/**
+ * @brief A one-way mapping between symbols (names) and their corresponding numerical values.
+ * 
+ * This is an active lookup, meaning that it is possible to add new symbols and their values to the lookup.
+ * 
+ * A method is provided to wait for a symbol to be added to the lookup.
+ */
+class Lookup
+{
+public:
+    inline static const name core_prefix = "lego-universe";
+
+    /**
+     * @brief Constructs a Lookup object with the specified lookup file path.
+     *
+     * @param lookup The path to the lookup file.
+     * @throw If the lookup file could not be parsed.
+     */
+    Lookup(const std::filesystem::path& lookup);
+
+    Lookup(const Lookup& other);
+
+    Lookup() = default;
+
+    /**
+     * @brief Gets the value of the specified symbol.
+     *
+     * @param symbol The symbol to get the value of.
+     * @return The value of the specified symbol.
+     * @throw If the specified symbol does not exist.
+     */
+    id GetValue(const name& symbol) const;
+
+    /**
+     * @brief Checks whether the specified symbol exists.
+     * 
+     * @param symbol The symbol to check.
+     * @return Whether the specified symbol exists.
+     */
+    bool Exists(const name& symbol) const;
+    
+    /**
+     * @brief Checks whether any symbol has the specified value.
+     * 
+     * @param value The value to check.
+     * @return Whether any symbol has the specified value.
+     */
+    bool Exists(id value) const;
+
+    /**
+     * @brief Gets the metadata of a specified symbol.
+     * 
+     * @param symbol The symbol to get metadata of.
+     * @return The metadata of the specified symbol or an empty string if the symbol does not exist.
+     */
+    const std::string& GetMetadata(const name& symbol) const;
+
+    /**
+     * @brief Gets the path to the lookup file.
+     *
+     * @return The path to the lookup file.
+     */
+    const std::filesystem::path& GetLookup() const;
+
+    /**
+     * @brief Gets the map of all symbols and their values.
+     * 
+     * @return The map of all symbols and their values.
+     */
+    const std::unordered_map<name, id>& GetMap() const;
+
+    /**
+     * @brief Checks whether the specified symbol is a core symbol.
+     * 
+     * @param symbol The symbol to check.
+     * @param value The value of the core symbol.
+     * @return Whether the specified symbol is a core symbol.
+     */
+    bool IsCoreSymbol(const name& symbol, id& value) const;
+
+    /**
+     * @brief Checks whether the specified symbol is a core symbol.
+     * 
+     * A symbol is considered a core symbol if it is either:
+     * a number;
+     * or a string starting with the core_prefix.
+     * 
+     * @param symbol The symbol to check.
+     * @return Whether the specified symbol is a core symbol.
+     */
+    static bool IsCoreSymbol(const name& symbol);
+
+private:
+
+    std::filesystem::path m_Lookup;
+
+    std::unordered_map<name, id> m_LookupMap;
+
+    std::unordered_map<name, std::string> m_Metadata;
+
+    std::unordered_map<name, id> m_CoreSymbols;
+};
+
+} // namespace nejlika

dGame/ModifierCategory.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <cstdint>
+
+namespace nejlika
+{
+
+enum class ModifierCategory : uint8_t
+{
+	Player = 0 << 0,
+	Pet = 1 << 0
+};
+
+}

dGame/ModifierInstance.cpp

@@ -0,0 +1,170 @@
+#include "ModifierInstance.h"
+
+#include <sstream>
+#include <magic_enum.hpp>
+
+nejlika::ModifierInstance::ModifierInstance(const nlohmann::json& config) {
+	type = magic_enum::enum_cast<ModifierType>(config["type"].get<std::string>()).value_or(ModifierType::Invalid);
+	convertTo = magic_enum::enum_cast<ModifierType>(config["convert-to"].get<std::string>()).value_or(ModifierType::Invalid);
+	value = config["value"].get<float>();
+	
+	if (config.contains("op")) {
+		op = magic_enum::enum_cast<ModifierOperator>(config["op"].get<std::string>()).value_or(ModifierOperator::Additive);
+	}
+	else {
+		op = ModifierOperator::Additive;
+	}
+
+	isResistance = config.contains("resistance") ? config["resistance"].get<bool>() : false;
+	
+	if (config.contains("category")) {
+		category = magic_enum::enum_cast<ModifierCategory>(config["category"].get<std::string>()).value_or(ModifierCategory::Player);
+	}
+	else {
+		category = ModifierCategory::Player;
+	}
+
+	effectID = config.contains("effect-id") ? config["effect-id"].get<uint32_t>() : 0;
+	effectType = config.contains("effect-type") ? config["effect-type"].get<std::string>() : "";
+}
+
+nlohmann::json nejlika::ModifierInstance::ToJson() const
+{
+	nlohmann::json config;
+
+	config["type"] = magic_enum::enum_name(type);
+	config["convert-to"] = magic_enum::enum_name(convertTo);
+	config["value"] = value;
+	config["op"] = magic_enum::enum_name(op);
+	config["resistance"] = isResistance;
+	config["category"] = magic_enum::enum_name(category);
+	config["effect-id"] = effectID;
+	config["effect-type"] = effectType;
+
+	return config;
+}
+
+std::string nejlika::ModifierInstance::GenerateHtmlString(const std::vector<ModifierInstance>& modifiers)
+{
+	std::stringstream ss;
+
+	// target -> resistance -> op -> type -> value
+	std::unordered_map<ModifierCategory, std::unordered_map<bool, std::unordered_map<ModifierOperator, std::unordered_map<ModifierType, float>>>> modifierMap;
+
+	bool hasConvertTo = false;
+	bool hasSkillModifier = false;
+	
+	for (const auto& modifier : modifiers) {
+		if (modifier.type == ModifierType::Invalid) {
+			continue;
+		}
+
+		if (modifier.GetConvertTo() != ModifierType::Invalid)
+		{
+			hasConvertTo = true;
+			continue;
+		}
+
+		if (!modifier.GetUpgradeName().empty())
+		{
+			hasSkillModifier = true;
+			continue;
+		}
+
+		modifierMap[modifier.category][modifier.isResistance][modifier.op][modifier.type] = modifier.value;
+	}
+
+	// Resistances and addatives are not separated, pet and player are
+	// Summarize the resistances and addatives
+	for (const auto& target : modifierMap) {
+		if (target.first == ModifierCategory::Pet) {
+			ss << "\n<font color=\"#D0AB62\">Pets:</font>\n";
+		}
+		
+		for (const auto& resistance : target.second) {
+			for (const auto& math : resistance.second) {
+				for (const auto& modifier : math.second) {
+					ss << "<font color=\"#FFFFFF\">";
+					
+					ss << ((modifier.second > 0) ? (math.first == ModifierOperator::Multiplicative ? "+" : "") : "-");
+					
+					ss << std::fixed << std::setprecision(1) << std::abs(modifier.second);
+
+					if (math.first == ModifierOperator::Multiplicative) {
+						ss << "%";
+					}
+
+					ss << "</font> <font color=\"#D0AB62\">";
+
+					ss << " " << nejlika::GetModifierTypeName(modifier.first);	
+					
+					if (resistance.first) {
+						// If the ss now ends with 'Damage' remove it
+						if (ss.str().substr(ss.str().size() - 7) == " Damage") {
+							ss.seekp(-7, std::ios_base::end);
+						}
+
+						ss << " " << "Resistance";
+					}
+
+					ss << "</font>\n";
+				}
+			}
+		}
+	}
+	
+	if (hasSkillModifier)
+	{
+		for (const auto& modifier : modifiers) {
+			if (modifier.type != ModifierType::SkillModifier) {
+				continue;
+			}
+
+			ss << "<font color=\"" << GetModifierTypeColor(modifier.type) << "\">";
+			
+			ss << ((modifier.value > 0) ? "+" : "-");
+			
+			ss << std::fixed << std::setprecision(0) << std::abs(modifier.value);
+
+			ss << " to ";
+
+			ss << modifier.GetUpgradeName();
+
+			ss << "</font>\n";
+		}
+	}
+
+	if (hasConvertTo)
+	{
+		for (const auto& modifier : modifiers) {
+			if (modifier.GetConvertTo() == ModifierType::Invalid)
+			{
+				continue;
+			}
+			
+			if (modifier.type == ModifierType::Invalid) {
+				continue;
+			}
+
+			ss << "<font color=\"#FFFFFF\">";
+			
+			// +xx/yy% of T1 converted to T2
+			ss << ((modifier.value > 0) ? "" : "-");
+
+			ss << std::fixed << std::setprecision(0) << std::abs(modifier.value);
+
+			ss << "%</font> <font color=\"#D0AB62\">";
+
+			ss << " of ";
+
+			ss << nejlika::GetModifierTypeName(modifier.type);
+
+			ss << " converted to ";
+
+			ss << nejlika::GetModifierTypeName(modifier.GetConvertTo());
+
+			ss << "</font>\n";
+		}
+	}
+	return ss.str();
+}

dGame/ModifierInstance.h

@@ -0,0 +1,97 @@
+#pragma once
+
+#include "ModifierType.h"
+#include "ModifierCategory.h"
+#include "ModifierOperator.h"
+
+#include <cstdint>
+#include <string>
+
+#include "json.hpp"
+
+namespace nejlika
+{
+
+class ModifierInstance
+{
+public:
+	ModifierInstance(
+		ModifierType type, float value, ModifierOperator op, bool isResistance, ModifierCategory category, uint32_t effectID, const std::string& effectType, ModifierType convertTo,
+		const std::string& upgradeName
+	) : type(type), value(value), op(op), isResistance(isResistance), category(category), effectID(effectID), effectType(effectType), convertTo(convertTo),
+		upgradeName(upgradeName)
+	{}
+
+	/**
+	 * @brief Construct a new Modifier Instance object from a json configuration.
+	 * 
+	 * @param config The json configuration.
+	 */
+	ModifierInstance(const nlohmann::json& config);
+
+	/**
+	 * @brief Convert the modifier instance to a json representation.
+	 * 
+	 * @return The json representation.
+	 */
+	nlohmann::json ToJson() const;
+
+	/**
+	 * @brief Generate a HTML string representation of a set of modifiers.
+	 * 
+	 * @param modifiers The modifiers to generate the HTML string for.
+	 * @return The HTML string.
+	 */
+	static std::string GenerateHtmlString(const std::vector<ModifierInstance>& modifiers);
+
+	// Getters and setters
+
+	ModifierType GetType() const { return type; }
+
+	ModifierType GetConvertTo() const { return convertTo; }
+
+	float GetValue() const { return value; }
+	
+	ModifierOperator GetOperator() const { return op; }
+
+	bool IsResistance() const { return isResistance; }
+	
+	ModifierCategory GetCategory() const { return category; }
+
+	uint32_t GetEffectID() const { return effectID; }
+
+	std::string GetEffectType() const { return effectType; }
+
+	std::string GetUpgradeName() const { return upgradeName; }
+
+	void SetType(ModifierType type) { this->type = type; }
+
+	void SetConvertTo(ModifierType convertTo) { this->convertTo = convertTo; }
+
+	void SetValue(float value) { this->value = value; }
+
+	void SetOperator(ModifierOperator op) { this->op = op; }
+
+	void SetIsResistance(bool isResistance) { this->isResistance = isResistance; }
+
+	void SetCategory(ModifierCategory category) { this->category = category; }
+
+	void SetEffectID(uint32_t effectID) { this->effectID = effectID; }
+
+	void SetEffectType(const std::string& effectType) { this->effectType = effectType; }
+
+	void SetUpgradeName(const std::string& upgradeName) { this->upgradeName = upgradeName; }
+
+private:
+	ModifierType type;
+	ModifierType convertTo;
+	float value;
+	ModifierOperator op;
+	bool isResistance;
+	ModifierCategory category;
+	uint32_t effectID;
+	std::string effectType;
+	std::string upgradeName;
+};
+
+}

dGame/ModifierName.cpp

@@ -0,0 +1,83 @@
+#include "ModifierName.h"
+
+#include <magic_enum.hpp>
+
+using namespace nejlika;
+
+nejlika::ModifierName::ModifierName(const nlohmann::json & json)
+{
+	name = json["name"].get<std::string>();
+
+	if (json.contains("type"))
+	{
+		type = magic_enum::enum_cast<ModifierNameType>(json["type"].get<std::string>()).value_or(ModifierNameType::Prefix);
+	}
+	else
+	{
+		type = ModifierNameType::Prefix;
+	}
+
+	if (json.contains("rarity"))
+	{
+		rarity = magic_enum::enum_cast<ModifierRarity>(json["rarity"].get<std::string>()).value_or(ModifierRarity::Common);
+	}
+	else
+	{
+		rarity = ModifierRarity::Common;
+	}
+}
+
+nejlika::ModifierName::ModifierName(const ModifierNameTemplate& templateData) {
+	name = templateData.GetName();
+	type = templateData.GetType();
+	rarity = templateData.GetRarity();
+}
+
+nlohmann::json nejlika::ModifierName::ToJson() const
+{
+	nlohmann::json json;
+
+	json["name"] = name;
+	json["type"] = magic_enum::enum_name(type);
+	json["rarity"] = magic_enum::enum_name(rarity);
+
+	return json;
+}
+
+std::string nejlika::ModifierName::GenerateHtmlString() const {
+	const auto& rarityColor = ModifierRarityHelper::GetModifierRarityColor(rarity);
+
+	std::stringstream ss;
+
+	ss << "<font color=\"" << rarityColor << "\">" << name << "</font>";
+
+	return ss.str();
+}
+
+std::string nejlika::ModifierName::GenerateHtmlString(const std::vector<ModifierName>& names)
+{
+	std::stringstream ss;
+
+	for (const auto& name : names) {
+		if (name.GetType() == ModifierNameType::Prefix && !name.name.empty()) {
+			ss << name.GenerateHtmlString() << "\n";
+		}
+	}
+
+	ss << "<font color=\"#D0AB62\">NAME</font>";
+
+	for (const auto& name : names) {
+		if (name.GetType() == ModifierNameType::Suffix && !name.name.empty()) {
+			ss << "\n" << name.GenerateHtmlString();
+		}
+	}
+
+	// Remove the last newline
+	auto str = ss.str();
+
+	if (!str.empty() && str.back() == '\n') {
+		str.pop_back();
+	}
+
+	return str;
+}

dGame/ModifierName.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+#include "ModifierNameType.h"
+#include "ModifierRarity.h"
+#include "ModifierNameTemplate.h"
+
+#include "json.hpp"
+
+namespace nejlika
+{
+
+class ModifierName
+{
+public:
+	ModifierName(const std::string& name, ModifierNameType type, ModifierRarity rarity) :
+		name(name), type(type), rarity(rarity) {}
+
+	ModifierName(const nlohmann::json& json);
+
+	ModifierName(const ModifierNameTemplate& templateData);
+
+	nlohmann::json ToJson() const;
+
+	std::string GenerateHtmlString() const;
+
+	/**
+	 * @brief Generate a HTML string representation of a set of names.
+	 * 
+	 * @param modifiers The names to generate the HTML string for.
+	 * @return The HTML string.
+	 */
+	static std::string GenerateHtmlString(const std::vector<ModifierName>& names);
+
+	// Getters and setters
+
+	const std::string& GetName() const { return name; }
+
+	ModifierNameType GetType() const { return type; }
+
+	ModifierRarity GetRarity() const { return rarity; }
+
+	void SetName(const std::string& name) { this->name = name; }
+
+	void SetType(ModifierNameType type) { this->type = type; }
+
+	void SetRarity(ModifierRarity rarity) { this->rarity = rarity; }
+
+private:
+	std::string name;
+	ModifierNameType type;
+	ModifierRarity rarity;
+};
+
+}

dGame/ModifierNameTemplate.cpp

@@ -0,0 +1,166 @@
+#include "ModifierNameTemplate.h"
+
+#include <iostream>
+
+#include "magic_enum.hpp"
+
+using namespace nejlika;
+
+nejlika::ModifierNameTemplate::ModifierNameTemplate(const nlohmann::json & json)
+{
+	name = json["name"].get<std::string>();
+
+	if (json.contains("lot"))
+	{
+		lot = json["lot"].get<int32_t>();
+	}
+	else
+	{
+		lot = 0;
+	}
+	
+	if (json.contains("type"))
+	{
+		type = magic_enum::enum_cast<ModifierNameType>(json["type"].get<std::string>()).value_or(ModifierNameType::Prefix);
+	}
+	else
+	{
+		type = ModifierNameType::Prefix;
+	}
+
+	if (json.contains("items"))
+	{
+		for (const auto& itemType : json["items"])
+		{
+			std::string type = itemType.get<std::string>();
+
+			// Make uppercase
+			std::transform(type.begin(), type.end(), type.begin(), ::toupper);
+
+			// Replace spaces with underscores
+			std::replace(type.begin(), type.end(), ' ', '_');
+
+			const auto itemTypeEnum = magic_enum::enum_cast<eItemType>(type);
+
+			if (itemTypeEnum.has_value())
+			{
+				itemTypes.push_back(itemTypeEnum.value());
+			}
+			else
+			{
+				std::cout << "Invalid item type: " << type << std::endl;
+			}
+		}
+	}
+
+	if (json.contains("modifiers"))
+	{
+		for (const auto& modifier : json["modifiers"])
+		{
+			const auto modifierTemplate = ModifierTemplate(modifier);
+
+			if (modifierTemplate.GetTypes().empty() || modifierTemplate.GetTypes().at(0) == ModifierType::Invalid)
+			{
+				continue;
+			}
+
+			modifiers.push_back(modifierTemplate);
+		}
+	}
+
+	if (json.contains("levels"))
+	{
+		auto levels = json["levels"];
+
+		if (levels.contains("min"))
+		{
+			minLevel = levels["min"].get<int32_t>();
+
+			const auto rasio = 1; //45.0f / 85.0f;
+
+			minLevel = std::max(1, static_cast<int32_t>(minLevel * rasio));
+		}
+		else
+		{
+			minLevel = 1;
+		}
+
+		if (levels.contains("max"))
+		{
+			maxLevel = levels["max"].get<int32_t>();
+		}
+		else
+		{
+			maxLevel = 45;
+		}
+	}
+
+	if (json.contains("rarity"))
+	{
+		rarity = magic_enum::enum_cast<ModifierRarity>(json["rarity"].get<std::string>()).value_or(ModifierRarity::Common);
+	}
+	else
+	{
+		rarity = ModifierRarity::Common;
+	}
+}
+
+nlohmann::json nejlika::ModifierNameTemplate::ToJson() const {
+	nlohmann::json json;
+
+	json["name"] = name;
+	json["type"] = magic_enum::enum_name(type);
+
+	if (lot != 0)
+	{
+		json["lot"] = lot;
+	}
+
+	if (!itemTypes.empty())
+	{
+		nlohmann::json items;
+
+		for (const auto& itemType : itemTypes)
+		{
+			items.push_back(magic_enum::enum_name(itemType));
+		}
+
+		json["items"] = items;
+	}
+
+	if (!modifiers.empty())
+	{
+		nlohmann::json modifierTemplates;
+
+		for (const auto& modifier : modifiers)
+		{
+			modifierTemplates.push_back(modifier.ToJson());
+		}
+
+		json["modifiers"] = modifierTemplates;
+	}
+
+	nlohmann::json levels;
+
+	levels["min"] = minLevel;
+	levels["max"] = maxLevel;
+
+	json["levels"] = levels;
+	json["rarity"] = magic_enum::enum_name(rarity);
+
+	return json;
+}
+
+std::vector<ModifierInstance> nejlika::ModifierNameTemplate::GenerateModifiers(int32_t level) const
+{
+	std::vector<ModifierInstance> result;
+
+	for (const auto& modifierTemplate : modifiers)
+	{
+		auto modifiers = modifierTemplate.GenerateModifiers(level);
+
+		result.insert(result.end(), modifiers.begin(), modifiers.end());
+	}
+
+	return result;
+}

dGame/ModifierNameTemplate.h

@@ -0,0 +1,55 @@
+#pragma	once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+#include "eItemType.h"
+#include "ModifierNameType.h"
+#include "ModifierRarity.h"
+#include "ModifierTemplate.h"
+
+#include "json.hpp"
+
+namespace nejlika
+{
+
+class ModifierNameTemplate
+{
+public:
+	ModifierNameTemplate(const nlohmann::json& json);
+
+	nlohmann::json ToJson() const;
+
+	std::vector<ModifierInstance> GenerateModifiers(int32_t level) const;
+
+	// Getters
+
+	const std::string& GetName() const { return name; }
+
+	ModifierNameType GetType() const { return type; }
+
+	const std::vector<ModifierTemplate>& GetModifiers() const { return modifiers; }
+
+	const std::vector<eItemType>& GetItemTypes() const { return itemTypes; }
+
+	int32_t GetMinLevel() const { return minLevel; }
+
+	int32_t GetMaxLevel() const { return maxLevel; }
+
+	ModifierRarity GetRarity() const { return rarity; }
+
+	int32_t GetLOT() const { return lot; }
+	
+private:
+	std::string name;
+	int32_t lot;
+	ModifierNameType type;
+	std::vector<ModifierTemplate> modifiers;
+	std::vector<eItemType> itemTypes;
+	int32_t minLevel;
+	int32_t maxLevel;
+	ModifierRarity rarity;
+};
+
+}

dGame/ModifierNameType.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <cstdint>
+
+namespace nejlika
+{
+
+enum class ModifierNameType : uint8_t
+{
+	Prefix,
+	Suffix,
+	Object,
+	Skill
+};
+
+}

dGame/ModifierOperator.h

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <cstdint>
+
+namespace nejlika
+{
+
+enum class ModifierOperator : uint8_t
+{
+	Additive,
+	Multiplicative
+};
+
+}

dGame/ModifierRarity.cpp

@@ -0,0 +1,31 @@
+#include "ModifierRarity.h"
+#include <unordered_map>
+
+using namespace nejlika;
+
+namespace
+{
+
+const std::unordered_map<ModifierRarity, std::string> colorMap = {
+	{ModifierRarity::Common, "#FFFFFF"},
+	{ModifierRarity::Uncommon, "#B5AC15"},
+	{ModifierRarity::Rare, "#3EEA4A"},
+	{ModifierRarity::Epic, "#2F83C1"},
+	{ModifierRarity::Legendary, "#852DCA"},
+	{ModifierRarity::Relic, "#00FFFF"}
+};
+
+}
+
+const std::string& nejlika::ModifierRarityHelper::GetModifierRarityColor(ModifierRarity rarity)
+{
+	const auto color = colorMap.find(rarity);
+
+	if (color != colorMap.end()) {
+		return color->second;
+	}
+
+	static const std::string white = "#FFFFFF";
+
+	return white;
+}

dGame/ModifierRarity.h

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+namespace nejlika
+{
+
+enum class ModifierRarity : uint8_t
+{
+	Common,
+	Uncommon,
+	Rare,
+	Epic,
+	Legendary,
+	Relic
+};
+
+namespace ModifierRarityHelper
+{
+	const std::string& GetModifierRarityColor(ModifierRarity rarity);
+}
+
+}

dGame/ModifierScale.cpp

@@ -0,0 +1,40 @@
+#include "ModifierScale.h"
+
+nejlika::ModifierScale::ModifierScale(const nlohmann::json & json)
+{
+	level = json["level"].get<int32_t>();
+
+	const auto rasio = 1; //45.0f / 85.0f;
+
+	level = std::max(1, static_cast<int32_t>(level * rasio));
+
+	if (json.contains("min")) {
+		min = json["min"].get<float>();
+	}
+	else {
+		min = 0.0f;
+	}
+
+	if (json.contains("max")) {
+		max = json["max"].get<float>();
+	}
+	else {
+		max = 0.0f;
+	}
+	
+	if (json.contains("value")) {
+		min = json["value"].get<float>();
+		max = json["value"].get<float>();
+	}
+}
+
+nlohmann::json nejlika::ModifierScale::ToJson() const
+{
+	nlohmann::json json;
+
+	json["level"] = level;
+	json["min"] = min;
+	json["max"] = max;
+
+	return json;
+}

dGame/ModifierScale.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include <cstdint>
+
+#include "json.hpp"
+
+namespace nejlika
+{
+
+class ModifierScale
+{
+public:
+	ModifierScale() = default;
+
+	ModifierScale(int32_t level, float min, float max) : level(level), min(min), max(max) {}
+
+	ModifierScale(const nlohmann::json& json);
+
+	nlohmann::json ToJson() const;
+
+	int32_t GetLevel() const { return level; }
+
+	float GetMin() const { return min; }
+
+	float GetMax() const { return max; }
+
+private:
+	int32_t level = 0;
+	float min = 0.0f;
+	float max = 0.0f;
+};
+
+}

dGame/ModifierTemplate.cpp

@@ -0,0 +1,501 @@
+#include "ModifierTemplate.h"
+
+#include <magic_enum.hpp>
+#include <random>
+#include <algorithm>
+#include <sstream>
+#include <iostream>
+
+using namespace nejlika;
+
+nejlika::ModifierTemplate::ModifierTemplate(const nlohmann::json& config) {
+	if (config.contains("type"))
+	{
+		selector = ModifierTemplateSelector::One;
+
+		const auto type = magic_enum::enum_cast<ModifierType>(config["type"].get<std::string>());
+
+		if (type.has_value())
+		{
+			types = {type.value()};
+		}
+		else
+		{
+			types = {};
+		}
+	}
+	else if (config.contains("all"))
+	{
+		selector = ModifierTemplateSelector::All;
+
+		types = {};
+
+		for (const auto& type : config["all"])
+		{
+			const auto t = magic_enum::enum_cast<ModifierType>(type.get<std::string>());
+
+			if (t.has_value())
+			{
+				types.push_back(t.value());
+			}
+		}
+	}
+	else if (config.contains("two-of"))
+	{
+		selector = ModifierTemplateSelector::Two;
+
+		types = {};
+
+		for (const auto& type : config["two-of"])
+		{
+			const auto t = magic_enum::enum_cast<ModifierType>(type.get<std::string>());
+
+			if (t.has_value())
+			{
+				types.push_back(t.value());
+			}
+		}
+	}
+	else
+	{
+		types = {};
+	}
+
+	if (config.contains("convert-to"))
+	{
+		convertTo = magic_enum::enum_cast<ModifierType>(config["convert-to"].get<std::string>()).value_or(ModifierType::Invalid);
+	}
+	else
+	{
+		convertTo = ModifierType::Invalid;
+	}
+
+	if (config.contains("scaling"))
+	{
+		const auto scaling = config["scaling"];
+
+		for (const auto& scaler : scaling)
+		{
+			scales.push_back(ModifierScale(scaler));
+		}
+	}
+
+	if (config.contains("polynomial"))
+	{
+		const auto polynomialConfig = config["polynomial"];
+
+		for (const auto& term : polynomialConfig)
+		{
+			polynomial.push_back(term.get<float>());
+		}
+	}
+
+	if (config.contains("category"))
+	{
+		category = magic_enum::enum_cast<ModifierCategory>(config["category"].get<std::string>()).value_or(ModifierCategory::Player);
+	}
+	else
+	{
+		category = ModifierCategory::Player;
+	}
+
+	isResistance = config.contains("resistance") ? config["resistance"].get<bool>() : false;
+
+	effectID = config.contains("effect-id") ? config["effect-id"].get<uint32_t>() : 0;
+
+	effectType = config.contains("effect-type") ? config["effect-type"].get<std::string>() : "";
+
+	if (config.contains("operator"))
+	{
+		operatorType = magic_enum::enum_cast<ModifierOperator>(config["operator"].get<std::string>()).value_or(ModifierOperator::Additive);
+	}
+	else
+	{
+		operatorType = ModifierOperator::Additive;
+	}
+
+	// Old format
+	if (config.contains("percentage"))
+	{
+		if (config["percentage"].get<bool>()) {
+			operatorType = ModifierOperator::Multiplicative;
+		}
+	}
+
+	if (config.contains("pet"))
+	{
+		if (config["pet"].get<bool>()) {
+			category = ModifierCategory::Pet;
+		}
+	}
+
+	if (config.contains("owner"))
+	{
+		if (config["owner"].get<bool>()) {
+			category = ModifierCategory::Player;
+		}
+	}
+
+	if (config.contains("skill"))
+	{
+		upgradeName = config["skill"].get<std::string>();
+	}
+}
+
+nlohmann::json nejlika::ModifierTemplate::ToJson() const {
+	nlohmann::json config;
+
+	if (selector == ModifierTemplateSelector::One)
+	{
+		config["type"] = magic_enum::enum_name(types[0]);
+	}
+	else if (selector == ModifierTemplateSelector::All)
+	{
+		config["all"] = true;
+
+		for (const auto& type : types)
+		{
+			config["types"].push_back(magic_enum::enum_name(type));
+		}
+	}
+	else if (selector == ModifierTemplateSelector::Two)
+	{
+		config["two-of"] = true;
+
+		for (const auto& type : types)
+		{
+			config["two-of"].push_back(magic_enum::enum_name(type));
+		}
+	}
+
+	if (!scales.empty())
+	{
+		nlohmann::json scaling;
+
+		for (const auto& scale : scales)
+		{
+			scaling.push_back(scale.ToJson());
+		}
+
+		config["scaling"] = scaling;
+	}
+
+	if (!polynomial.empty())
+	{
+		nlohmann::json polynomialConfig;
+
+		for (const auto& term : polynomial)
+		{
+			polynomialConfig.push_back(term);
+		}
+
+		config["polynomial"] = polynomialConfig;
+	}
+
+	config["convert-to"] = magic_enum::enum_name(convertTo);
+
+	config["category"] = magic_enum::enum_name(category);
+	config["resistance"] = isResistance;
+	config["effect-id"] = effectID;
+	config["effect-type"] = effectType;
+	config["operator"] = magic_enum::enum_name(operatorType);
+
+	if (!upgradeName.empty())
+	{
+		config["skill"] = upgradeName;
+	}
+
+	return config;
+}
+
+std::vector<ModifierInstance> nejlika::ModifierTemplate::GenerateModifiers(int32_t level) const {
+	std::vector<ModifierInstance> modifiers;
+
+	std::vector<ModifierType> selectedTypes;
+
+	if (types.empty())
+	{
+		return modifiers;
+	}
+
+	if (selector == ModifierTemplateSelector::One)
+	{
+		selectedTypes = {types[0]};
+	}
+	else if (selector == ModifierTemplateSelector::All)
+	{
+		selectedTypes = types;
+	}
+	else if (selector == ModifierTemplateSelector::Two)
+	{
+		if (types.size() < 2)
+		{
+			selectedTypes = types;
+		}
+		else
+		{
+			// Randomly select two types
+			selectedTypes = types;
+
+			std::shuffle(selectedTypes.begin(), selectedTypes.end(), std::mt19937(std::random_device()()));
+
+			selectedTypes.resize(2);
+		}
+	}
+
+	for (const auto& selectedType : selectedTypes)
+	{
+		auto modifierOpt = GenerateModifier(selectedType, level);
+
+		if (modifierOpt.has_value())
+		{
+			modifiers.push_back(modifierOpt.value());
+		}
+	}
+
+	return modifiers;
+}
+
+std::string nejlika::ModifierTemplate::GenerateHtmlString(const std::vector<ModifierTemplate>& modifiers, int32_t level) {
+	std::stringstream ss;
+
+	// target -> resistance -> op -> type -> (min, max)
+	std::unordered_map<ModifierCategory, std::unordered_map<bool, std::unordered_map<ModifierOperator, std::unordered_map<ModifierType, std::pair<float, float>>>>> modifierMap;
+
+	bool hasConvertTo = false;
+	bool hasSkillModifier = false;
+
+	for (const auto& modifier : modifiers) {
+		if (modifier.GetConvertTo() != ModifierType::Invalid)
+		{
+			hasConvertTo = true;
+			continue;
+		}
+
+		if (!modifier.GetUpgradeName().empty())
+		{
+			hasSkillModifier = true;
+			continue;
+		}
+
+		for (const auto& type : modifier.types) {
+			if (type == ModifierType::Invalid || type == ModifierType::SkillModifier) {
+				continue;
+			}
+
+			if (!modifier.polynomial.empty())
+			{
+				float value = 0.0f;
+
+				int32_t power = 0;
+				for (const auto& term : modifier.polynomial)
+				{
+					value += term * std::pow(level, power);
+
+					power++;
+				}
+
+				modifierMap[modifier.category][modifier.isResistance][modifier.operatorType][type] = {value, value};
+
+				continue;
+			}
+
+			ModifierScale scale;
+			bool found = false;
+
+			// Select the scale with the highest level that is less than or equal to the current level
+			for (const auto& s : modifier.scales) {
+				if (s.GetLevel() <= level && s.GetLevel() > scale.GetLevel()) {
+					scale = s;
+					found = true;
+				}
+			}
+
+			if (!found) {
+				continue;
+			}
+			
+			modifierMap[modifier.category][modifier.isResistance][modifier.operatorType][type] = {scale.GetMin(), scale.GetMax()};
+		}
+	}
+
+	// Resistances and addatives are not separated, pet and player are
+	// Summarize the resistances and addatives
+	for (const auto& target : modifierMap) {
+		if (target.first == ModifierCategory::Pet) {
+			ss << "\n<font color=\"#D0AB62\">Pets:</font>\n";
+		}
+		
+		for (const auto& resistance : target.second) {
+			for (const auto& math : resistance.second) {
+				for (const auto& modifier : math.second) {
+					ss << "<font color=\"#FFFFFF\">";
+
+					ss << ((modifier.second.first > 0) ? (math.first == ModifierOperator::Multiplicative ? "+" : "") : "-");
+					
+					ss << std::fixed << std::setprecision(1) << std::abs(modifier.second.first);
+
+					if (modifier.second.first != modifier.second.second)
+					{
+						ss << "/";
+
+						ss << std::fixed << std::setprecision(1) << std::abs(modifier.second.second);
+					}
+
+					if (math.first == ModifierOperator::Multiplicative) {
+						ss << "%";
+					}
+					
+					ss << "</font> <font color=\"#D0AB62\">";
+
+					ss << " " << nejlika::GetModifierTypeName(modifier.first);
+					
+					if (resistance.first) {
+						// If the ss now ends with 'Damage' remove it
+						if (ss.str().substr(ss.str().size() - 6) == "Damage") {
+							ss.seekp(-6, std::ios_base::end);
+						}
+
+						ss << " " << "Resistance";
+					}
+
+					ss << "</font>\n";
+				}
+			}
+		}
+	}
+
+	if (hasSkillModifier)
+	{
+		for (const auto& modifier : modifiers) {
+			for (const auto& type : modifier.types) {
+				if (type != ModifierType::SkillModifier) {
+					continue;
+				}
+
+				const auto& scalors = modifier.GetScales();
+
+				if (scalors.empty())
+				{
+					continue;
+				}
+
+				const auto& m = scalors[0];
+
+				ss << "<font color=\"" << GetModifierTypeColor(type) << "\">";
+				
+				ss << ((m.GetMin() > 0) ? "+" : "-");
+				
+				ss << std::fixed << std::setprecision(0) << std::abs(m.GetMin());
+
+				ss << " to ";
+
+				ss << modifier.GetUpgradeName();
+
+				ss << "</font>\n";
+			}
+		}
+	}
+
+	if (hasConvertTo)
+	{
+		for (const auto& modifier : modifiers) {
+			if (modifier.GetConvertTo() == ModifierType::Invalid)
+			{
+				continue;
+			}
+			
+			for (const auto& type : modifier.types) {
+				if (type == ModifierType::Invalid) {
+					continue;
+				}
+
+				const auto& scalors = modifier.GetScales();
+
+				auto m = scalors[0];
+
+				for (const auto& s : scalors) {
+					if (s.GetLevel() <= level && s.GetLevel() > m.GetLevel()) {
+						m = s;
+					}
+				}
+
+				ss << "<font color=\"#FFFFFF\">";
+
+				// +xx/yy% of T1 converted to T2
+				ss << ((m.GetMin() > 0) ? "" : "-");
+
+				ss << std::fixed << std::setprecision(0) << std::abs(m.GetMin());
+
+				if (m.GetMin() != m.GetMax())
+				{
+					ss << "/";
+
+					ss << std::fixed << std::setprecision(0) << std::abs(m.GetMax());
+				}
+
+				ss << "%</font> <font color=\"#D0AB62\">";
+
+				ss << " of ";
+
+				ss << nejlika::GetModifierTypeName(type);
+
+				ss << " converted to ";
+
+				ss << nejlika::GetModifierTypeName(modifier.GetConvertTo());
+
+				ss << "</font>\n";
+			}
+		}
+	}
+
+	return ss.str();
+}
+
+std::optional<ModifierInstance> nejlika::ModifierTemplate::GenerateModifier(ModifierType type, int32_t level) const {
+	ModifierScale scale;
+	bool found = false;
+
+	if (!polynomial.empty())
+	{
+		float value = 0.0f;
+
+		int32_t power = 0;
+		for (const auto& term : polynomial)
+		{
+			value += term * std::pow(level, power);
+
+			power++;
+		}
+
+		return ModifierInstance(type, value, operatorType, isResistance, category, effectID, effectType, convertTo, upgradeName);
+	}
+
+	// Select the scale with the highest level that is less than or equal to the current level
+	for (const auto& s : scales) {
+		if ((s.GetLevel() <= level) && (s.GetLevel() > scale.GetLevel())) {
+			std::cout << "Found scale: " << s.GetMin() << " - " << s.GetMax() << " for level " << s.GetLevel() << std::endl;
+			scale = s;
+			found = true;
+		}
+	}
+
+	if (!found) {
+		return std::nullopt;
+	}
+
+	float value = 0;
+	
+	if (scale.GetMax() == scale.GetMin())
+	{
+		value = scale.GetMin();
+	}
+	else
+	{
+		value = (GeneralUtils::GenerateRandomNumber<uint32_t>(0, 100) / 100.0f) * (scale.GetMax() - scale.GetMin()) + scale.GetMin();
+	}
+	
+	std::cout << "Generated modifier: " << value << " with level " << level << " for type: " << magic_enum::enum_name(type) << std::endl;
+
+	return ModifierInstance(type, value, operatorType, isResistance, category, effectID, effectType, convertTo, upgradeName);
+}

dGame/ModifierTemplate.h

@@ -0,0 +1,109 @@
+#pragma once
+
+#include <cstdint>
+#include <vector>
+#include <string>
+#include <optional>
+
+#include "ModifierInstance.h"
+#include "ModifierScale.h"
+
+namespace nejlika
+{
+
+enum ModifierTemplateSelector : uint8_t
+{
+	One,
+	All,
+	Two
+};
+
+class ModifierTemplate
+{
+public:
+	ModifierTemplate(
+		const std::vector<ModifierType>& types, ModifierTemplateSelector selector, ModifierCategory category, bool isResistance, uint32_t effectID, const std::string& effectType
+	) : types(types), selector(selector), category(category), isResistance(isResistance), effectID(effectID), effectType(effectType) {}
+
+	/**
+	 * @brief Construct a new Modifier Template object from a json configuration.
+	 * 
+	 * @param config The json configuration.
+	 */
+	ModifierTemplate(const nlohmann::json& config);
+
+	/**
+	 * @brief Convert the modifier template to a json representation.
+	 * 
+	 * @return The json representation.
+	 */
+	nlohmann::json ToJson() const;
+
+	std::vector<ModifierInstance> GenerateModifiers(int32_t level) const;
+
+	// Getters and setters
+
+	const std::vector<ModifierType>& GetTypes() const { return types; }
+
+	ModifierType GetConvertTo() const { return convertTo; }
+
+	ModifierTemplateSelector GetSelector() const { return selector; }
+
+	const std::vector<ModifierScale>& GetScales() const { return scales; }
+
+	ModifierCategory GetCategory() const { return category; }
+
+	bool IsResistance() const { return isResistance; }
+
+	uint32_t GetEffectID() const { return effectID; }
+
+	std::string GetEffectType() const { return effectType; }
+
+	const std::string& GetUpgradeName() const { return upgradeName; }
+
+	void SetTypes(const std::vector<ModifierType>& types) { this->types = types; }
+
+	void SetConvertTo(ModifierType convertTo) { this->convertTo = convertTo; }
+
+	void SetSelector(ModifierTemplateSelector selector) { this->selector = selector; }
+
+	void SetScales(const std::vector<ModifierScale>& scales) { this->scales = scales; }
+
+	void SetCategory(ModifierCategory category) { this->category = category; }
+
+	void SetIsResistance(bool isResistance) { this->isResistance = isResistance; }
+
+	void SetEffectID(uint32_t effectID) { this->effectID = effectID; }
+
+	void SetEffectType(const std::string& effectType) { this->effectType = effectType; }
+
+	void SetUpgradeName(const std::string& upgradeName) { this->upgradeName = upgradeName; }
+	
+	/**
+	 * @brief Generate a HTML string representation of a set of modifier templates.
+	 * 
+	 * @param modifiers The modifier templates to generate the HTML string for.
+	 * @param level The level of the modifier templates.
+	 * @return The HTML string.
+	 */
+	static std::string GenerateHtmlString(const std::vector<ModifierTemplate>& modifiers, int32_t level);
+
+
+private:
+	std::optional<ModifierInstance> GenerateModifier(ModifierType type, int32_t level) const;
+
+	std::vector<ModifierType> types;
+	ModifierType convertTo;
+	ModifierTemplateSelector selector;
+	std::vector<ModifierScale> scales;
+	std::vector<float> polynomial;
+	ModifierCategory category;
+	ModifierOperator operatorType;
+	bool isResistance;
+	uint32_t effectID;
+	std::string effectType;
+	std::string upgradeName;
+
+};
+
+}

dGame/ModifierType.cpp

@@ -0,0 +1,216 @@
+#include "ModifierType.h"
+#include <unordered_map>
+#include <unordered_set>
+
+using namespace nejlika;
+
+namespace
+{
+
+const std::unordered_map<ModifierType, std::string> colorMap = {
+	{ModifierType::Health, "#750000"},
+	{ModifierType::Armor, "#525252"},
+	{ModifierType::Imagination, "#0077FF"},
+	{ModifierType::Offensive, "#71583B"},
+	{ModifierType::Defensive, "#71583B"},
+	{ModifierType::Physical, "#666666"},
+	{ModifierType::Pierce, "#4f4f4f"},
+	{ModifierType::Vitality, "#e84646"},
+	{ModifierType::Fire, "#ff0000"},
+	{ModifierType::Cold, "#94d0f2"},
+	{ModifierType::Lightning, "#00a2ff"},
+	{ModifierType::Corruption, "#3d00ad"},
+	{ModifierType::Psychic, "#4b0161"},
+	{ModifierType::Acid, "#00ff00"},
+};
+
+const std::unordered_map<ModifierType, std::string> nameMap = {
+	{ModifierType::Health, "Health"},
+	{ModifierType::Armor, "Armor"},
+	{ModifierType::Imagination, "Imagination"},
+	{ModifierType::Offensive, "Offensive Ability"},
+	{ModifierType::Defensive, "Defensive Ability"},
+	{ModifierType::Physical, "Physical Damage"},
+	{ModifierType::Pierce, "Pierce Damage"},
+	{ModifierType::Vitality, "Vitality Damage"},
+	{ModifierType::Fire, "Fire Damage"},
+	{ModifierType::Cold, "Cold Damage"},
+	{ModifierType::Lightning, "Lightning Damage"},
+	{ModifierType::Corruption, "Corruption Damage"},
+	{ModifierType::Psychic, "Psychic Damage"},
+	{ModifierType::Acid, "Acid Damage"},
+	{ModifierType::InternalDisassembly, "Internal Disassembly"},
+	{ModifierType::InternalDisassemblyDuration, "Internal Disassembly Duration"},
+	{ModifierType::Burn, "Burn"},
+	{ModifierType::BurnDuration, "Burn Duration"},
+	{ModifierType::Frostburn, "Frostburn"},
+	{ModifierType::FrostburnDuration, "Frostburn Duration"},
+	{ModifierType::Poison, "Poison"},
+	{ModifierType::PoisonDuration, "Poison Duration"},
+	{ModifierType::Electrocute, "Electrocute"},
+	{ModifierType::ElectrocuteDuration, "Electrocute Duration"},
+	{ModifierType::VitalityDecay, "Vitality Decay"},
+	{ModifierType::VitalityDecayDuration, "Vitality Decay Duration"},
+	{ModifierType::Seperation, "Seperation"},
+	{ModifierType::SeperationDuration, "Seperation Duration"},
+	{ModifierType::Elemental, "Elemental Damage"},
+	{ModifierType::Damage, "Damage"},
+	{ModifierType::Speed, "Speed"},
+	{ModifierType::AttackSpeed, "Attack Speed"},
+	{ModifierType::BlockRecovery, "Block Recovery Speed"},
+	{ModifierType::BlockChance, "Chance to Block"},
+	{ModifierType::Block, "Damage to Block"},
+	{ModifierType::CriticalDamage, "Critical-hit Damage"},
+	{ModifierType::HealthDrain, "Damage converted to Health"},
+	{ModifierType::ArmorPiercing, "Armor Piercing"},
+	{ModifierType::ReducedStunDuration, "Reduced Stun Duration"},
+	{ModifierType::SkillCooldownReduction, "Skill Cooldown Reduction"},
+	{ModifierType::SkillRecharge, "Skill Recharge Time"},
+	{ModifierType::Slow, "Slow"},
+	{ModifierType::Physique, "Physique"},
+	{ModifierType::Cunning, "Cunning"},
+	{ModifierType::Spirit, "Imagination"},
+	{ModifierType::AttacksPerSecond, "Attacks per Second"},
+	{ModifierType::ImaginationCost, "Imagination Cost"},
+	{ModifierType::MainWeaponDamage, "Main Weapon Damage"},
+	{ModifierType::Stun, "Target Stun Duration"}
+};
+
+const std::unordered_map<ModifierType, ModifierType> resistanceMap = {
+	{ModifierType::Physical, ModifierType::Physical},
+	{ModifierType::Pierce, ModifierType::Pierce},
+	{ModifierType::Vitality, ModifierType::Vitality},
+	{ModifierType::Fire, ModifierType::Fire},
+	{ModifierType::Cold, ModifierType::Cold},
+	{ModifierType::Lightning, ModifierType::Lightning},
+	{ModifierType::Corruption, ModifierType::Corruption},
+	{ModifierType::Psychic, ModifierType::Psychic},
+	{ModifierType::Acid, ModifierType::Acid},
+	{ModifierType::InternalDisassembly, ModifierType::Physical},
+	{ModifierType::Burn, ModifierType::Fire},
+	{ModifierType::Frostburn, ModifierType::Cold},
+	{ModifierType::Poison, ModifierType::Acid},
+	{ModifierType::VitalityDecay, ModifierType::Vitality},
+	{ModifierType::Electrocute, ModifierType::Lightning},
+	{ModifierType::Seperation, ModifierType::Seperation}
+};
+
+const std::unordered_set<ModifierType> normalDamageTypes = {
+	ModifierType::Physical,
+	ModifierType::Pierce,
+	ModifierType::Vitality,
+	ModifierType::Fire,
+	ModifierType::Cold,
+	ModifierType::Lightning,
+	ModifierType::Corruption,
+	ModifierType::Psychic,
+	ModifierType::Acid
+};
+
+const std::unordered_map<ModifierType, ModifierType> durationMap = {
+	{ModifierType::InternalDisassembly, ModifierType::InternalDisassemblyDuration},
+	{ModifierType::Burn, ModifierType::BurnDuration},
+	{ModifierType::Frostburn, ModifierType::FrostburnDuration},
+	{ModifierType::Poison, ModifierType::PoisonDuration},
+	{ModifierType::VitalityDecay, ModifierType::VitalityDecayDuration},
+	{ModifierType::Electrocute, ModifierType::ElectrocuteDuration},
+	{ModifierType::Seperation, ModifierType::SeperationDuration}
+};
+
+const std::unordered_map<ModifierType, ModifierType> overTimeMap = {
+	{ModifierType::Physical, ModifierType::InternalDisassembly},
+	{ModifierType::Fire, ModifierType::Burn},
+	{ModifierType::Cold, ModifierType::Frostburn},
+	{ModifierType::Poison, ModifierType::Poison},
+	{ModifierType::Vitality, ModifierType::VitalityDecay},
+	{ModifierType::Lightning, ModifierType::Electrocute}
+};
+
+const std::unordered_set<ModifierType> isOverTimeMap = {
+	ModifierType::InternalDisassembly,
+	ModifierType::Burn,
+	ModifierType::Frostburn,
+	ModifierType::Poison,
+	ModifierType::VitalityDecay,
+	ModifierType::Electrocute,
+	ModifierType::Seperation
+};
+
+const std::unordered_set<ModifierType> isDurationType = {
+	ModifierType::InternalDisassemblyDuration,
+	ModifierType::BurnDuration,
+	ModifierType::FrostburnDuration,
+	ModifierType::PoisonDuration,
+	ModifierType::VitalityDecayDuration,
+	ModifierType::ElectrocuteDuration,
+	ModifierType::SeperationDuration
+};
+
+}
+
+const std::string& nejlika::GetModifierTypeColor(ModifierType type)
+{
+	const auto color = colorMap.find(type);
+
+	if (color != colorMap.end()) {
+		return color->second;
+	}
+
+	static const std::string white = "#FFFFFF";
+
+	return white;
+}
+
+const std::string& nejlika::GetModifierTypeName(ModifierType type) {
+	const auto name = nameMap.find(type);
+
+	if (name != nameMap.end()) {
+		return name->second;
+	}
+
+	static const std::string invalid = "Invalid";
+
+	return invalid;
+}
+
+const ModifierType nejlika::GetResistanceType(ModifierType type) {
+	const auto resistance = resistanceMap.find(type);
+
+	if (resistance != resistanceMap.end()) {
+		return resistance->second;
+	}
+
+	return ModifierType::Invalid;
+}
+
+const bool nejlika::IsNormalDamageType(ModifierType type) {
+	return normalDamageTypes.find(type) != normalDamageTypes.end();
+}
+
+const ModifierType nejlika::GetOverTimeType(ModifierType type) {
+	const auto overTime = overTimeMap.find(type);
+
+	if (overTime != overTimeMap.end()) {
+		return overTime->second;
+	}
+
+	return ModifierType::Invalid;
+}
+
+const ModifierType nejlika::GetDurationType(ModifierType type) {
+	const auto duration = durationMap.find(type);
+
+	if (duration != durationMap.end()) {
+		return duration->second;
+	}
+
+	return ModifierType::Invalid;
+}
+
+const bool nejlika::IsOverTimeType(ModifierType type) {
+	return isOverTimeMap.find(type) != isOverTimeMap.end();
+}
+
+const bool nejlika::IsDurationType(ModifierType type) {
+	return isDurationType.find(type) != isDurationType.end();
+}

dGame/ModifierType.h

@@ -0,0 +1,96 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+namespace nejlika
+{
+
+enum class ModifierType : uint8_t
+{
+	Health,
+	Armor,
+	Imagination,
+
+	Physique,
+	Cunning,
+	Spirit,
+
+	Offensive,
+	Defensive,
+	
+	// Normal Types
+	Physical,
+	Fire,
+	Cold,
+	Lightning,
+	Acid,
+	Vitality,
+	Pierce,
+	Corruption, // Aether
+	Psychic, // Chaos
+
+	// Duration Types
+	InternalDisassembly, // Internal Trauma
+	InternalDisassemblyDuration,
+	Burn,
+	BurnDuration,
+	Frostburn,
+	FrostburnDuration,
+	Poison,
+	PoisonDuration,
+	VitalityDecay,
+	VitalityDecayDuration,
+	Electrocute,
+	ElectrocuteDuration,
+	Seperation, // Bleeding
+	SeperationDuration,
+	
+	// Special
+	Elemental, // Even split between Fire, Cold, Lightning
+
+	Damage,
+
+	Speed,
+
+	AttackSpeed,
+	SkillModifier,
+
+	Slow,
+	ArmorPiercing,
+	ReducedStunDuration,
+	SkillCooldownReduction,
+	SkillRecharge,
+	BlockRecovery,
+	BlockChance,
+	Block,
+	HealthRegen,
+	ImaginationRegen,
+	AttacksPerSecond,
+	ImaginationCost,
+	MainWeaponDamage,
+	Stun,
+
+	CriticalDamage,
+	HealthDrain,
+
+	Invalid
+};
+
+const std::string& GetModifierTypeColor(ModifierType type);
+
+const std::string& GetModifierTypeName(ModifierType type);
+
+const ModifierType GetResistanceType(ModifierType type);
+
+const bool IsNormalDamageType(ModifierType type);
+
+const bool IsOverTimeType(ModifierType type);
+
+const bool IsDurationType(ModifierType type);
+
+const ModifierType GetOverTimeType(ModifierType type);
+
+const ModifierType GetDurationType(ModifierType type);
+
+}

dGame/NejlikaData.cpp

@@ -0,0 +1,215 @@
+#include "NejlikaData.h"
+
+#include "Game.h"
+#include "dConfig.h"
+#include "json.hpp"
+#include "Logger.h"
+#include "Lookup.h"
+
+#include <fstream>
+
+using namespace nejlika;
+
+namespace
+{
+
+std::unordered_map<nejlika::ModifierNameType, std::vector<nejlika::ModifierNameTemplate>> modifierNameTemplates;
+
+std::unordered_map<LWOOBJID, nejlika::AdditionalItemData> additionalItemData;
+
+std::unordered_map<LWOOBJID, nejlika::AdditionalEntityData> additionalEntityData;
+
+std::unordered_map<LOT, nejlika::EntityTemplate> entityTemplates;
+
+std::unordered_map<LOT, nejlika::UpgradeTemplate> upgradeTemplates;
+
+nejlika::Lookup lookup;
+
+}
+
+const nejlika::Lookup& nejlika::NejlikaData::GetLookup()
+{
+	return lookup;
+}
+
+const std::unordered_map<ModifierNameType,std::vector<ModifierNameTemplate>>& nejlika::NejlikaData::GetModifierNameTemplates()
+{
+	return modifierNameTemplates;
+}
+
+const std::vector<nejlika::ModifierNameTemplate>& nejlika::NejlikaData::GetModifierNameTemplates(ModifierNameType type)
+{
+	const auto it = modifierNameTemplates.find(type);
+
+	if (it != modifierNameTemplates.end()) {
+		return it->second;
+	}
+
+	static const std::vector<nejlika::ModifierNameTemplate> empty;
+	return empty;
+}
+
+const std::optional<AdditionalItemData*> nejlika::NejlikaData::GetAdditionalItemData(LWOOBJID id) {
+	const auto& it = additionalItemData.find(id);
+
+	if (it != additionalItemData.end()) {
+		return std::optional<AdditionalItemData*>(&it->second);
+	}
+	
+	return std::nullopt;
+}
+
+const std::optional<AdditionalEntityData*> nejlika::NejlikaData::GetAdditionalEntityData(LWOOBJID id) {
+	const auto& it = additionalEntityData.find(id);
+
+	if (it != additionalEntityData.end()) {
+		return std::optional<AdditionalEntityData*>(&it->second);
+	}
+
+	return std::nullopt;
+}
+
+const std::optional<EntityTemplate*> nejlika::NejlikaData::GetEntityTemplate(LOT lot) {
+	const auto& it = entityTemplates.find(lot);
+
+	if (it != entityTemplates.end()) {
+		return std::optional<EntityTemplate*>(&it->second);
+	}
+
+	return std::nullopt;
+}
+
+const std::optional<UpgradeTemplate*> nejlika::NejlikaData::GetUpgradeTemplate(LOT lot) {
+	const auto& it = upgradeTemplates.find(lot);
+
+	if (it != upgradeTemplates.end()) {
+		return std::optional<UpgradeTemplate*>(&it->second);
+	}
+
+	return std::nullopt;
+}
+
+void nejlika::NejlikaData::SetAdditionalItemData(LWOOBJID id, AdditionalItemData data) {
+	additionalItemData[id] = data;
+}
+
+void nejlika::NejlikaData::SetAdditionalEntityData(LWOOBJID id, AdditionalEntityData data) {
+	additionalEntityData[id] = data;
+}
+
+void nejlika::NejlikaData::UnsetAdditionalItemData(LWOOBJID id) {
+	additionalItemData.erase(id);
+}
+
+void nejlika::NejlikaData::UnsetAdditionalEntityData(LWOOBJID id) {
+	additionalEntityData.erase(id);
+}
+
+void nejlika::NejlikaData::LoadNejlikaData()
+{
+	const auto& lookupFile = Game::config->GetValue("lookup");
+
+	if (!lookupFile.empty())
+	{
+		lookup = Lookup(lookupFile);
+	}
+
+	modifierNameTemplates.clear();
+
+	// Load data from json file
+	const auto& directory_name = Game::config->GetValue("nejlika");
+
+	if (directory_name.empty())
+	{
+		return;
+	}
+
+	// Loop through all files in the directory
+	for (const auto& entry : std::filesystem::directory_iterator(directory_name))
+	{
+		if (!entry.is_regular_file())
+		{
+			continue;
+		}
+
+		// It has to end on .mod.json
+		const auto& path = entry.path().string();
+
+		if (path.size() < 9 || path.substr(path.size() - 9) != ".mod.json")
+		{
+			continue;
+		}
+
+		LoadNejlikaDataFile(entry.path().string());
+	}
+}
+
+void nejlika::NejlikaData::LoadNejlikaDataFile(const std::string& path) {
+	std::ifstream file(path);
+
+	if (!file.is_open())
+	{
+		LOG("Failed to open nejlika data file: %s", path.c_str());
+		return;
+	}
+
+	nlohmann::json json;
+	
+	try
+	{
+		json = nlohmann::json::parse(file);
+	}
+	catch (const nlohmann::json::exception& e)
+	{
+		LOG("Failed to parse nejlika data file: %s", e.what());
+		return;
+	}
+
+	if (json.contains("modifier-templates"))
+	{
+		const auto& modifierTemplates = json["modifier-templates"];
+
+		for (const auto& value : modifierTemplates)
+		{
+			auto modifierTemplate = ModifierNameTemplate(value);
+
+			if (modifierTemplate.GetModifiers().empty())
+			{
+				continue;
+			}
+
+			modifierNameTemplates[modifierTemplate.GetType()].push_back(modifierTemplate);
+		}
+	}
+
+	LOG("Loaded %d modifier templates", modifierNameTemplates.size());
+
+	if (json.contains("entity-templates"))
+	{
+		const auto& entityTemplatesArray = json["entity-templates"];
+		
+		for (const auto& value : entityTemplatesArray)
+		{
+			auto entityTemplate = EntityTemplate(value);
+
+			entityTemplates[entityTemplate.GetLOT()] = entityTemplate;
+		}
+	}
+
+	LOG("Loaded %d entity templates", entityTemplates.size());
+
+	if (json.contains("upgrade-templates"))
+	{
+		const auto& upgradeTemplatesArray = json["upgrade-templates"];
+
+		for (const auto& value : upgradeTemplatesArray)
+		{
+			auto upgradeTemplate = UpgradeTemplate(value);
+
+			upgradeTemplates[upgradeTemplate.GetLot()] = upgradeTemplate;
+		}
+	}
+
+	LOG("Loaded %d upgrade templates", upgradeTemplates.size());
+}
+

dGame/NejlikaData.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <cstdint>
+#include <vector>
+
+#include "ModifierNameTemplate.h"
+#include "EntityTemplate.h"
+#include "AdditionalItemData.h"
+#include "AdditionalEntityData.h"
+#include "UpgradeTemplate.h"
+#include "Lookup.h"
+
+namespace nejlika::NejlikaData
+{
+
+const std::unordered_map<ModifierNameType, std::vector<ModifierNameTemplate>>& GetModifierNameTemplates();
+
+const std::vector<ModifierNameTemplate>& GetModifierNameTemplates(ModifierNameType type);
+
+const std::optional<AdditionalItemData*> GetAdditionalItemData(LWOOBJID id);
+
+const std::optional<AdditionalEntityData*> GetAdditionalEntityData(LWOOBJID id);
+
+const std::optional<EntityTemplate*> GetEntityTemplate(LOT lot);
+
+const std::optional<UpgradeTemplate*> GetUpgradeTemplate(LOT lot);
+
+void SetAdditionalItemData(LWOOBJID id, AdditionalItemData data);
+
+void SetAdditionalEntityData(LWOOBJID id, AdditionalEntityData data);
+
+void UnsetAdditionalItemData(LWOOBJID id);
+
+void UnsetAdditionalEntityData(LWOOBJID id);
+
+void LoadNejlikaData();
+
+void LoadNejlikaDataFile(const std::string& path);
+
+const Lookup& GetLookup();
+
+}

dGame/NejlikaHelpers.cpp

@@ -0,0 +1,33 @@
+#include "NejlikaHelpers.h"
+
+
+void nejlika::NejlikaHelpers::RenderDamageText(const std::string & text, Entity * attacker, Entity * damaged,
+	float scale, int32_t fontSize, int32_t colorR, int32_t colorG, int32_t colorB, int32_t colorA)
+{
+	if (damaged == nullptr) {
+		return;
+	}
+
+	auto damagedPosition = damaged->GetPosition();
+
+	// Add a slight random offset to the damage position
+	damagedPosition.x += (rand() % 10 - 5) / 5.0f;
+	damagedPosition.y += (rand() % 10 - 5) / 5.0f;
+	damagedPosition.z += (rand() % 10 - 5) / 5.0f;
+
+	const auto& damageText = text;
+
+	std::stringstream damageUIMessage;
+
+	damageUIMessage << 0.0825 << ";" << 0.12 << ";" << damagedPosition.x << ";" << damagedPosition.y + 4.5f << ";" << damagedPosition.z << ";" << 0.1 << ";";
+	damageUIMessage << 200 * scale << ";" << 200 * scale << ";" << 0.5 << ";" << 1.0 << ";" << damageText << ";" << 4 << ";" << fontSize << ";" << colorR << ";" << colorG << ";" << colorB << ";";
+	damageUIMessage << colorA;
+
+	const auto damageUIStr = damageUIMessage.str();
+
+	if (damaged->IsPlayer()) {
+		damaged->SetNetworkVar<std::string>(u"renderText", damageUIStr, UNASSIGNED_SYSTEM_ADDRESS);
+	} else if (attacker != nullptr && attacker->IsPlayer()) {
+		attacker->SetNetworkVar<std::string>(u"renderText", damageUIStr, UNASSIGNED_SYSTEM_ADDRESS);
+	}
+}

dGame/NejlikaHelpers.h

@@ -0,0 +1,9 @@
+#include <Entity.h>
+
+namespace nejlika::NejlikaHelpers
+{
+
+void RenderDamageText(const std::string& text, Entity* attacker, Entity* damaged, 
+	float scale = 1, int32_t fontSize = 4, int32_t colorR = 255, int32_t colorG = 255, int32_t colorB = 255, int32_t colorA = 0);
+
+}

dGame/NejlikaHooks.h

@@ -0,0 +1,10 @@
+#pragma once
+
+namespace nejlika::NejlikaHooks
+{
+
+void InstallHooks();
+
+void ItemDescription(Entity* entity, const SystemAddress& sysAddr, const std::string args);
+
+}

dGame/PlayerManager.cpp

@@ -18,6 +18,8 @@ void PlayerManager::AddPlayer(Entity* player) {
 
 	if (iter == m_Players.end()) {
 		m_Players.push_back(player);
+
+		OnPlayerAdded(player);
 	}
 }
 
@@ -27,6 +29,8 @@ bool PlayerManager::RemovePlayer(Entity* player) {
 	const bool toReturn = iter != m_Players.end();
 	if (toReturn) {
 		m_Players.erase(iter);
+
+		OnPlayerRemoved(player);
 	}
 
 	return toReturn;

dGame/PlayerManager.h

@@ -2,6 +2,7 @@
 #define __PLAYERMANAGER__H__
 
 #include "dCommonVars.h"
+#include "Observable.h"
 
 #include <string>
 
@@ -20,6 +21,9 @@ namespace PlayerManager {
 	Entity* GetPlayer(LWOOBJID playerID);
 
 	const std::vector<Entity*>& GetAllPlayers();
+
+	static Observable<Entity*> OnPlayerAdded;
+	static Observable<Entity*> OnPlayerRemoved;
 };
 
 #endif  //!__PLAYERMANAGER__H__

dGame/TriggerParameters.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <cstdint>
+#include "BehaviorSlot.h"
+
+namespace nejlika
+{
+
+class TriggerParameters
+{
+public:
+	int32_t SkillID = 0;
+	BehaviorSlot SelectedBehaviorSlot = BehaviorSlot::Invalid;
+};
+
+}

dGame/UpgradeEffect.cpp

@@ -0,0 +1,355 @@
+#include "UpgradeEffect.h"
+
+#include "GeneralUtils.h"
+#include "GameMessages.h"
+#include "InventoryComponent.h"
+
+#include <magic_enum.hpp>
+#include <iostream>
+
+using namespace nejlika;
+
+nejlika::UpgradeEffect::UpgradeEffect(const nlohmann::json& json)
+{
+	Load(json);
+}
+
+nlohmann::json nejlika::UpgradeEffect::ToJson() const
+{
+	nlohmann::json json;
+
+	json["trigger-type"] = static_cast<int32_t>(triggerType);
+
+	nlohmann::json modifiersJson = nlohmann::json::array();
+
+	for (const auto& modifier : modifiers) {
+		modifiersJson.push_back(modifier.ToJson());
+	}
+
+	json["modifiers"] = modifiersJson;
+	
+	if (!chance.empty()) {
+		nlohmann::json chanceJson = nlohmann::json::array();
+
+		for (const auto& scale : chance) {
+			chanceJson.push_back({
+				{"level", scale.level},
+				{"value", scale.value}
+			});
+		}
+
+		json["chance"] = chanceJson;
+	}
+
+	if (effectID != 0) {
+		json["effect-id"] = effectID;
+	}
+
+	if (!effectType.empty()) {
+		json["effect-type"] = effectType;
+	}
+
+	if (!conditions.empty()) {
+		nlohmann::json conditionsJson = nlohmann::json::array();
+
+		for (const auto& condition : conditions) {
+			conditionsJson.push_back(magic_enum::enum_name(condition));
+		}
+
+		json["conditions"] = conditionsJson;
+	}
+
+	if (equipSkillID != 0) {
+		json["grant-skill-id"] = equipSkillID;
+	}
+
+	return json;
+}
+
+std::vector<ModifierInstance> nejlika::UpgradeEffect::GenerateModifiers(int32_t level) const
+{
+	std::vector<ModifierInstance> result;
+
+	for (const auto& modifier : modifiers) {
+		auto instances = modifier.GenerateModifiers(level);
+
+		result.insert(result.end(), instances.begin(), instances.end());
+	}
+
+	return result;
+}
+
+void nejlika::UpgradeEffect::Load(const nlohmann::json& json)
+{
+	triggerType = magic_enum::enum_cast<UpgradeTriggerType>(json["trigger-type"].get<std::string>()).value_or(UpgradeTriggerType::OnHit);
+
+	modifiers.clear();
+
+	if (json.contains("modifiers")){
+		for (const auto& modifier : json["modifiers"]) {
+			ModifierTemplate effect(modifier);
+			modifiers.push_back(effect);
+		}
+	}
+
+	if (json.contains("chance")) {
+		chance.clear();
+
+		for (const auto& scale : json["chance"]) {
+			chance.push_back({
+				scale["level"].get<int32_t>(),
+				scale["value"].get<float>()
+			});
+		}
+	}
+
+	if (json.contains("effect-id")) {
+		effectID = json["effect-id"].get<int32_t>();
+	}
+
+	if (json.contains("effect-type")) {
+		effectType = json["effect-type"].get<std::string>();
+	}
+
+	if (json.contains("conditions")) {
+		conditions.clear();
+
+		for (const auto& condition : json["conditions"]) {
+			conditions.push_back(magic_enum::enum_cast<UpgradeTriggerCondition>(condition.get<std::string>()).value_or(UpgradeTriggerCondition::None));
+		}
+	}
+
+	if (json.contains("grant-skill-id")) {
+		equipSkillID = json["grant-skill-id"].get<int32_t>();
+	}
+}
+
+float nejlika::UpgradeEffect::CalculateChance(int32_t level) const {
+	if (chance.empty()) {
+		return 1;
+	}
+
+	// Find the highest level that is less than or equal to the given level
+	float value = 0;
+
+	for (const auto& scale : chance) {
+		if (scale.level <= level) {
+			value = scale.value;
+		}
+	}
+
+	return value;
+}
+
+bool nejlika::UpgradeEffect::CheckConditions(LWOOBJID origin, const TriggerParameters& params) const {
+	auto* entity = Game::entityManager->GetEntity(origin);
+
+	if (!entity) {
+		return false;
+	}
+
+	auto* inventory = entity->GetComponent<InventoryComponent>();
+
+	if (!inventory) {
+		return false;
+	}
+
+	const auto& skills = inventory->GetSkills();
+	const auto& equipped = inventory->GetEquippedItems();
+
+	for (const auto& condition : conditions) {
+		switch (condition) {
+		case UpgradeTriggerCondition::PrimaryAbility:
+			if (params.SelectedBehaviorSlot != BehaviorSlot::Primary) {
+				return false;
+			}
+			break;
+		case UpgradeTriggerCondition::UseSkill:
+			if (params.SkillID != equipSkillID) {
+				return false;
+			}
+		case UpgradeTriggerCondition::None:
+			break;
+		case UpgradeTriggerCondition::Unarmed:
+			if (equipped.contains("special_r")) {
+				return false;
+			}
+			break;
+		case UpgradeTriggerCondition::Melee:
+			if (!equipped.contains("special_r")) {
+				return false;
+			}
+			break;
+		case UpgradeTriggerCondition::TwoHanded:
+		{
+			if (!equipped.contains("special_r")) {
+				return false;
+			}
+
+			const auto& weaponLot = equipped.at("special_r").lot;
+
+			const auto& info = Inventory::FindItemComponent(weaponLot);
+
+			if (!info.isTwoHanded) {
+				return false;
+			}
+			break;
+		}
+		case UpgradeTriggerCondition::Shield:
+			if (!equipped.contains("special_l")) {
+				return false;
+			}
+			break;
+		default:
+			break;
+		}
+	}
+
+	return true;
+}
+
+void nejlika::UpgradeEffect::OnTrigger(LWOOBJID origin) const {
+	auto* entity = Game::entityManager->GetEntity(origin);
+
+	if (!entity) {
+		return;
+	}
+
+	auto* inventory = entity->GetComponent<InventoryComponent>();
+
+	if (!inventory) {
+		return;
+	}
+}
+
+std::vector<ModifierInstance> nejlika::UpgradeEffect::Trigger(const std::vector<UpgradeEffect>& modifiers, int32_t level, UpgradeTriggerType triggerType, LWOOBJID origin, const TriggerParameters& params) {
+	std::vector<ModifierInstance> result;
+
+	for (const auto& modifier : modifiers) {
+		if (modifier.GetTriggerType() != triggerType) {
+			continue;
+		}
+
+		if (!modifier.CheckConditions(origin, params)) {
+			continue;
+		}
+
+		float chanceRoll = GeneralUtils::GenerateRandomNumber<float>(0, 1);
+
+		if (chanceRoll > modifier.CalculateChance(level)) {
+			continue;
+		}
+
+		std::cout << "Triggering effect trigger type: " << magic_enum::enum_name(triggerType) << std::endl;
+
+		modifier.OnTrigger(origin);
+
+		auto instances = modifier.GenerateModifiers(level);
+
+		result.insert(result.end(), instances.begin(), instances.end());
+
+		if (modifier.effectID == 0) {
+			continue;
+		}
+
+		GameMessages::SendPlayFXEffect(
+			origin,
+			modifier.effectID,
+			GeneralUtils::UTF8ToUTF16(modifier.effectType),
+			std::to_string(GeneralUtils::GenerateRandomNumber<size_t>())
+		);
+	}
+
+	return result;
+}
+
+void nejlika::UpgradeEffect::AddSkill(LWOOBJID origin) const {
+	auto* entity = Game::entityManager->GetEntity(origin);
+
+	if (!entity) {
+		return;
+	}
+
+	auto* inventory = entity->GetComponent<InventoryComponent>();
+
+	if (!inventory) {
+		return;
+	}
+
+	if (triggerType != UpgradeTriggerType::Active) {
+		return;
+	}
+
+	if (equipSkillID != 0) {
+		inventory->AddSkill(equipSkillID);
+	}
+}
+
+void nejlika::UpgradeEffect::RemoveSkill(LWOOBJID origin) const {
+	auto* entity = Game::entityManager->GetEntity(origin);
+
+	if (!entity) {
+		return;
+	}
+
+	auto* inventory = entity->GetComponent<InventoryComponent>();
+
+	if (!inventory) {
+		return;
+	}
+
+	if (triggerType != UpgradeTriggerType::Active) {
+		return;
+	}
+
+	if (equipSkillID != 0) {
+		inventory->RemoveSkill(equipSkillID);
+	}
+}
+
+std::string nejlika::UpgradeEffect::GenerateHtmlString(const std::vector<UpgradeEffect>& effects, int32_t level) {
+	std::stringstream ss;
+
+	for (const auto& effect : effects) {
+		const auto chance = effect.CalculateChance(level);
+
+
+		for (const auto& condition : effect.conditions) {
+			if (condition == UpgradeTriggerCondition::None || condition == UpgradeTriggerCondition::UseSkill) {
+				continue;
+			}
+
+			ss << "<font color=\"#D0AB62\">";
+
+			switch (condition) {
+			case UpgradeTriggerCondition::PrimaryAbility:
+				ss << "On main-hand attack";
+				break;
+			case UpgradeTriggerCondition::Melee:
+				ss << "Requires melee weapon";
+				break;
+			case UpgradeTriggerCondition::TwoHanded:
+				ss << "Requires two-handed weapon";
+				break;
+			case UpgradeTriggerCondition::Shield:
+				ss << "Requires a shield";
+				break;
+			case UpgradeTriggerCondition::Unarmed:
+				ss << "Requires unarmed attack";
+				break;
+			}
+
+			ss << "</font>\n\n";
+		}
+		
+		if (chance < 1.0f) { 
+			ss << "<font color=\"#FFFFFF\">" << chance * 100 << "%</font><font color=\"#D0AB62\"> chance to trigger</font>\n";
+		}
+
+		std::cout << "Level " << level << " chance: " << chance << std::endl;
+
+		ss << ModifierInstance::GenerateHtmlString(effect.GenerateModifiers(level));
+	}
+
+	return ss.str();
+}

dGame/UpgradeEffect.h

@@ -0,0 +1,69 @@
+#pragma once
+
+#include "ModifierTemplate.h"
+#include "UpgradeTriggerType.h"
+#include "UpgradeTriggerCondition.h"
+#include <InventoryComponent.h>
+#include "TriggerParameters.h"
+
+#include <dCommonVars.h>
+
+namespace nejlika
+{
+
+class UpgradeEffect
+{
+public:
+	UpgradeEffect(const nlohmann::json& json);
+
+	nlohmann::json ToJson() const;
+	
+	std::vector<ModifierInstance> GenerateModifiers(int32_t level) const;
+
+	void Load(const nlohmann::json& json);
+
+	float CalculateChance(int32_t level) const;
+
+	bool CheckConditions(LWOOBJID origin, const TriggerParameters& params) const;
+
+	void OnTrigger(LWOOBJID origin) const;
+
+	static std::vector<ModifierInstance> Trigger(const std::vector<UpgradeEffect>& modifiers, int32_t level, UpgradeTriggerType triggerType, LWOOBJID origin, const TriggerParameters& params);
+
+	// Getters
+
+	const std::vector<ModifierTemplate>& GetModifiers() const { return modifiers; }
+
+	UpgradeTriggerType GetTriggerType() const { return triggerType; }
+
+	void AddSkill(LWOOBJID origin) const;
+	void RemoveSkill(LWOOBJID origin) const;
+	
+	/**
+	 * @brief Generate a HTML string representation of a set of upgrade effects.
+	 * 
+	 * @param modifiers The upgrade effects to generate the HTML string for.
+	 * @param level The level of the upgrade effects.
+	 * @return The HTML string.
+	 */
+	static std::string GenerateHtmlString(const std::vector<UpgradeEffect>& effects, int32_t level);
+
+private:
+	struct UpgradeScale
+	{
+		int32_t level;
+		float value;
+	};
+	
+	std::vector<UpgradeScale> chance;
+	std::vector<UpgradeTriggerCondition> conditions;
+	UpgradeTriggerType triggerType;
+	int32_t equipSkillID = 0;
+	std::vector<ModifierTemplate> modifiers;
+	int32_t effectID = 0;
+	std::string effectType = "";
+	std::vector<ModifierTemplate> debuffs;
+	std::vector<UpgradeScale> debuffDuration;
+};
+
+}

dGame/UpgradeTemplate.cpp

@@ -0,0 +1,90 @@
+#include "UpgradeTemplate.h"
+
+#include "NejlikaData.h"
+
+using namespace nejlika;
+
+nejlika::UpgradeTemplate::UpgradeTemplate(const nlohmann::json& json)
+{
+	Load(json);
+}
+
+nlohmann::json nejlika::UpgradeTemplate::ToJson() const
+{
+	nlohmann::json json;
+
+	json["name"] = name;
+	json["lot"] = lot;
+	json["max-level"] = maxLevel;
+
+	nlohmann::json passivesJson = nlohmann::json::array();
+
+	for (const auto& passive : passives) {
+		passivesJson.push_back(passive.ToJson());
+	}
+
+	json["passives"] = passivesJson;
+
+	return json;
+}
+
+void nejlika::UpgradeTemplate::Load(const nlohmann::json& json)
+{
+	name = json["name"].get<std::string>();
+	if (json["lot"].is_string()) {
+		lot = NejlikaData::GetLookup().GetValue(json["lot"].get<std::string>());
+	}
+	else {
+		lot = json["lot"].get<int32_t>();
+	}
+	maxLevel = json.contains("max-level") ? json["max-level"].get<int32_t>() : 1;
+
+	passives.clear();
+
+	if (json.contains("modifiers")) {
+		for (const auto& modifier : json["modifiers"]) {
+			ModifierTemplate modTemplate(modifier);
+			modifiers.push_back(modTemplate);
+		}
+	}
+
+	if (json.contains("passives")) {
+		for (const auto& passive : json["passives"]) {
+			UpgradeEffect effect(passive);
+			passives.push_back(effect);
+		}
+	}
+}
+
+std::vector<ModifierInstance> nejlika::UpgradeTemplate::Trigger(int32_t level, UpgradeTriggerType triggerType, LWOOBJID origin, const TriggerParameters& params) const {
+	level = std::min(level, maxLevel);
+
+	return UpgradeEffect::Trigger(passives, level, triggerType, origin, params);
+}
+
+std::vector<ModifierInstance> nejlika::UpgradeTemplate::GenerateModifiers(int32_t level) const {
+	level = std::min(level, maxLevel);
+
+	std::vector<ModifierInstance> result;
+
+	for (const auto& modifier : modifiers) {
+		auto instances = modifier.GenerateModifiers(level);
+
+		result.insert(result.end(), instances.begin(), instances.end());
+	}
+
+	return result;
+}
+
+void nejlika::UpgradeTemplate::AddSkills(LWOOBJID origin) const {
+	for (const auto& passive : passives) {
+		passive.AddSkill(origin);
+	}
+}
+
+void nejlika::UpgradeTemplate::RemoveSkills(LWOOBJID origin) const {
+	for (const auto& passive : passives) {
+		passive.RemoveSkill(origin);
+	}
+}
+

dGame/UpgradeTemplate.h

@@ -0,0 +1,48 @@
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+
+#include "json.hpp"
+
+#include "UpgradeEffect.h"
+#include "TriggerParameters.h"
+
+namespace nejlika
+{
+
+class UpgradeTemplate
+{
+public:
+	UpgradeTemplate() = default;
+
+	UpgradeTemplate(const nlohmann::json& json);
+
+	nlohmann::json ToJson() const;
+
+	void Load(const nlohmann::json& json);
+
+	const std::string& GetName() const { return name; }
+	int32_t GetLot() const { return lot; }
+	int32_t GetMaxLevel() const { return maxLevel; }
+	const std::vector<UpgradeEffect>& GetPassives() const { return passives; }
+	const std::vector<ModifierTemplate>& GetModifiers() const { return modifiers; }
+
+	std::vector<ModifierInstance> Trigger(int32_t level, UpgradeTriggerType triggerType, LWOOBJID origin, const TriggerParameters& params) const;
+
+	std::vector<ModifierInstance> GenerateModifiers(int32_t level) const;
+
+	void AddSkills(LWOOBJID origin) const;
+	void RemoveSkills(LWOOBJID origin) const;
+
+private:
+	std::string name = "";
+	int32_t lot = 0;
+	int32_t maxLevel = 0;
+    std::vector<UpgradeEffect> passives;
+	std::vector<ModifierTemplate> modifiers;
+
+};
+
+}

dGame/UpgradeTriggerCondition.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <cstdint>
+
+namespace nejlika
+{
+
+enum class UpgradeTriggerCondition
+{
+	None,
+	Unarmed,
+	Melee,
+	TwoHanded,
+	Shield,
+	PrimaryAbility,
+	UseSkill
+};
+
+}

dGame/UpgradeTriggerType.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <cstdint>
+
+namespace nejlika
+{
+
+enum class UpgradeTriggerType
+{
+	OnHit,
+	Equip,
+	UnEquip,
+	Active,
+	OnCast
+};
+
+}

dGame/UserManager.cpp

@@ -516,7 +516,7 @@ void UserManager::LoginCharacter(const SystemAddress& sysAddr, uint32_t playerID
 		Database::Get()->UpdateLastLoggedInCharacter(playerID);
 
 		uint32_t zoneID = character->GetZoneID();
-		if (zoneID == LWOZONEID_INVALID) zoneID = 1000; //Send char to VE
+		if (zoneID == LWOZONEID_INVALID) zoneID = 1100; //Send char to AG, skip VE
 
 		ZoneInstanceManager::Instance()->RequestZoneTransfer(Game::server, zoneID, character->GetZoneClone(), false, [=](bool mythranShift, uint32_t zoneID, uint32_t zoneInstance, uint32_t zoneClone, std::string serverIP, uint16_t serverPort) {
 			LOG("Transferring %s to Zone %i (Instance %i | Clone %i | Mythran Shift: %s) with IP %s and Port %i", character->GetName().c_str(), zoneID, zoneInstance, zoneClone, mythranShift == true ? "true" : "false", serverIP.c_str(), serverPort);

dGame/dBehaviors/HealBehavior.cpp

@@ -24,7 +24,13 @@ void HealBehavior::Handle(BehaviorContext* context, RakNet::BitStream& bit_strea
 		return;
 	}
 
-	destroyable->Heal(this->m_health);
+	auto maxHealth = destroyable->GetMaxHealth();
+
+	// 1 health is 5% of the max health, minimum of 5 health
+	auto health = static_cast<int32_t>(maxHealth * 0.05f) * this->m_health;
+	health = std::max(5u, health);
+
+	destroyable->Heal(health);
 }
 
 

dGame/dComponents/BaseCombatAIComponent.cpp

@@ -36,6 +36,7 @@ BaseCombatAIComponent::BaseCombatAIComponent(Entity* parent, const uint32_t id):
 	m_Disabled = false;
 	m_SkillEntries = {};
 	m_SoftTimer = 5.0f;
+	m_StunImmune = true;
 
 	//Grab the aggro information from BaseCombatAI:
 	auto componentQuery = CDClientDatabase::CreatePreppedStmt(
@@ -369,9 +370,9 @@ void BaseCombatAIComponent::CalculateCombat(const float deltaTime) {
 
 			m_Timer = 0;
 
-			m_SkillTime = result.skillTime;
+			m_SkillTime = result.skillTime / 2.0f;
 
-			entry.cooldown = entry.abilityCooldown + m_SkillTime;
+			entry.cooldown = 0.1f; //entry.abilityCooldown + m_SkillTime;
 
 			m_SkillEntries[i] = entry;
 
@@ -619,6 +620,10 @@ void BaseCombatAIComponent::SetThreat(LWOOBJID offender, float threat) {
 	m_DirtyThreat = true;
 }
 
+const std::map<LWOOBJID, float>& BaseCombatAIComponent::GetThreats() const {
+	return m_ThreatEntries;
+}
+
 const NiPoint3& BaseCombatAIComponent::GetStartPosition() const {
 	return m_StartPosition;
 }
@@ -679,7 +684,7 @@ void BaseCombatAIComponent::OnAggro() {
 		return;
 	}
 
-	m_MovementAI->SetHaltDistance(m_AttackRadius);
+	m_MovementAI->SetHaltDistance(0);
 
 	NiPoint3 targetPos = target->GetPosition();
 	NiPoint3 currentPos = m_MovementAI->GetParent()->GetPosition();
@@ -713,7 +718,7 @@ void BaseCombatAIComponent::OnTether() {
 		return;
 	}
 
-	m_MovementAI->SetHaltDistance(m_AttackRadius);
+	m_MovementAI->SetHaltDistance(0);
 
 	NiPoint3 targetPos = target->GetPosition();
 	NiPoint3 currentPos = m_MovementAI->ApproximateLocation();
@@ -762,8 +767,8 @@ void BaseCombatAIComponent::SetTetherSpeed(float value) {
 	m_TetherSpeed = value;
 }
 
-void BaseCombatAIComponent::Stun(const float time) {
-	if (m_StunImmune || m_StunTime > time) {
+void BaseCombatAIComponent::Stun(const float time, const bool ignoreImmunity) {
+	if ((!ignoreImmunity && m_StunImmune) || m_StunTime > time) {
 		return;
 	}
 

dGame/dComponents/BaseCombatAIComponent.h

@@ -114,6 +114,12 @@ public:
 	 */
 	void SetThreat(LWOOBJID offender, float threat);
 
+	/**
+	 * Get all threats for this entity
+	 * @return all threats for this entity
+	 */
+	const std::map<LWOOBJID, float>& GetThreats() const;
+
 	/**
 	 * Gets the position where the entity spawned
 	 * @return the position where the entity spawned
@@ -181,8 +187,9 @@ public:
 	/**
 	 * Stuns the entity for a certain amount of time, will not work if the entity is stun immune
 	 * @param time the time to stun the entity, if stunnable
+	 * @param ignoreImmunity whether to ignore the stun immunity of the entity
 	 */
-	void Stun(float time);
+	void Stun(float time, bool ignoreImmunity = false);
 
 	/**
 	 * Gets the radius that will cause this entity to get aggro'd, causing a target chase

dGame/dComponents/DestroyableComponent.cpp

@@ -38,6 +38,8 @@
 
 #include "CDComponentsRegistryTable.h"
 
+Observable<Entity*, LWOOBJID, uint32_t, uint32_t&> DestroyableComponent::OnDamageCalculation;
+
 DestroyableComponent::DestroyableComponent(Entity* parent) : Component(parent) {
 	m_iArmor = 0;
 	m_fMaxArmor = 0.0f;
@@ -554,7 +556,7 @@ void DestroyableComponent::Repair(const uint32_t armor) {
 }
 
 
-void DestroyableComponent::Damage(uint32_t damage, const LWOOBJID source, uint32_t skillID, bool echo) {
+void DestroyableComponent::Damage(uint32_t damage, const LWOOBJID source, uint32_t skillID, bool echo, bool isDamageOverTime) {
 	if (GetHealth() <= 0) {
 		return;
 	}
@@ -570,6 +572,10 @@ void DestroyableComponent::Damage(uint32_t damage, const LWOOBJID source, uint32
 		return;
 	}
 
+	if (!isDamageOverTime) {
+		OnDamageCalculation(m_Parent, source, skillID, damage);
+	}
+
 	// If this entity has damage reduction, reduce the damage to a minimum of 1
 	if (m_DamageReduction > 0 && damage > 0) {
 		if (damage > m_DamageReduction) {
@@ -637,6 +643,42 @@ void DestroyableComponent::Damage(uint32_t damage, const LWOOBJID source, uint32
 		cb(attacker);
 	}
 
+	std::stringstream damageUIMessage;
+
+	auto damagedPosition = m_Parent->GetPosition();
+
+	// Add a slight random offset to the damage position
+	damagedPosition.x += (rand() % 10 - 5) / 5.0f;
+	damagedPosition.y += (rand() % 10 - 5) / 5.0f;
+	damagedPosition.z += (rand() % 10 - 5) / 5.0f;
+
+	int colorR = 255;
+	int colorG = 255;
+	int colorB = 255;
+	int colorA = 0;
+
+	if (m_Parent->IsPlayer()) {
+		// Make the damage red
+		colorR = 0;
+		colorG = 255;
+		colorB = 0;
+		colorA = 0;
+	}
+
+	const auto damageText = damage != 0 ? std::to_string(damage) : "Miss";
+
+	damageUIMessage << 0.0825 << ";" << 0.12 << ";" << damagedPosition.x << ";" << damagedPosition.y + 4.5f << ";" << damagedPosition.z << ";" << 0.1 << ";";
+	damageUIMessage << 200 << ";" << 200 << ";" << 0.5 << ";" << 1.0 << ";" << damageText << ";" << 4 << ";" << 4 << ";" << colorR << ";" << colorG << ";" << colorB << ";";
+	damageUIMessage << colorA;
+
+	const auto damageUIStr = damageUIMessage.str();
+
+	if (m_Parent->IsPlayer()) {
+		m_Parent->SetNetworkVar<std::string>(u"renderText", damageUIStr, UNASSIGNED_SYSTEM_ADDRESS);
+	} else if (attacker != nullptr && attacker->IsPlayer()) {
+		attacker->SetNetworkVar<std::string>(u"renderText", damageUIStr, UNASSIGNED_SYSTEM_ADDRESS);
+	}
+
 	if (health != 0) {
 		auto* combatComponent = m_Parent->GetComponent<BaseCombatAIComponent>();
 

dGame/dComponents/DestroyableComponent.h

@@ -7,6 +7,7 @@
 #include "Entity.h"
 #include "Component.h"
 #include "eReplicaComponentType.h"
+#include "Observable.h"
 
 namespace CppScripts {
 	class Script;
@@ -383,8 +384,9 @@ public:
 	 * @param source the attacker that caused this damage
 	 * @param skillID the skill that damaged this entity
 	 * @param echo whether or not to serialize the damage
+	 * @param isDamageOverTime whether or not this damage is over time
 	 */
-	void Damage(uint32_t damage, LWOOBJID source, uint32_t skillID = 0, bool echo = true);
+	void Damage(uint32_t damage, LWOOBJID source, uint32_t skillID = 0, bool echo = true, bool isDamageOverTime = false);
 
 	/**
 	 * Smashes this entity, notifying all clients
@@ -463,6 +465,9 @@ public:
 	// handle hardcode mode drops
 	void DoHardcoreModeDrops(const LWOOBJID source);
 
+	// Damaged entity, offender, skillID, damage
+	static Observable<Entity*, LWOOBJID, uint32_t, uint32_t&> OnDamageCalculation;
+
 private:
 	/**
 	 * Whether or not the health should be serialized

dGame/dComponents/InventoryComponent.cpp

@@ -1,6 +1,7 @@
 #include "InventoryComponent.h"
 
 #include <sstream>
+#include <algorithm>
 
 #include "Entity.h"
 #include "Item.h"
@@ -38,6 +39,13 @@
 #include "CDObjectSkillsTable.h"
 #include "CDSkillBehaviorTable.h"
 
+Observable<InventoryComponent*, Item*> InventoryComponent::OnItemCreated;
+Observable<InventoryComponent*, Item*> InventoryComponent::OnItemDestroyed;
+Observable<InventoryComponent*, Item*> InventoryComponent::OnItemEquipped;
+Observable<InventoryComponent*, Item*> InventoryComponent::OnItemUnequipped;
+Observable<InventoryComponent*, Item*> InventoryComponent::OnItemLoaded;
+Observable<InventoryComponent*, Item*> InventoryComponent::OnCountChanged;
+
 InventoryComponent::InventoryComponent(Entity* parent) : Component(parent) {
 	this->m_Dirty = true;
 	this->m_Equipped = {};
@@ -287,6 +295,8 @@ void InventoryComponent::AddItem(
 		}
 		auto* item = new Item(lot, inventory, slot, size, {}, parent, showFlyingLoot, isModMoveAndEquip, subKey, false, lootSourceType);
 
+		OnItemCreated(this, item);
+
 		isModMoveAndEquip = false;
 	}
 
@@ -571,6 +581,8 @@ void InventoryComponent::LoadXml(const tinyxml2::XMLDocument& document) {
 			}
 
 			itemElement = itemElement->NextSiblingElement();
+
+			OnItemLoaded(this, item);
 		}
 
 		bag = bag->NextSiblingElement();
@@ -849,6 +861,8 @@ void InventoryComponent::EquipItem(Item* item, const bool skipChecks) {
 
 	EquipScripts(item);
 
+	OnItemEquipped(this, item);
+
 	Game::entityManager->SerializeEntity(m_Parent);
 }
 
@@ -879,6 +893,8 @@ void InventoryComponent::UnEquipItem(Item* item) {
 
 	UnequipScripts(item);
 
+	OnItemUnequipped(this, item);
+
 	Game::entityManager->SerializeEntity(m_Parent);
 
 	// Trigger property event
@@ -1113,15 +1129,17 @@ void InventoryComponent::AddItemSkills(const LOT lot) {
 
 	const auto slot = FindBehaviorSlot(static_cast<eItemType>(info.itemType));
 
-	if (slot == BehaviorSlot::Invalid) {
+	if (slot != BehaviorSlot::Primary) {
 		return;
 	}
 
-	const auto index = m_Skills.find(slot);
+	if (m_PrimarySkill != 0) {
+		GameMessages::SendRemoveSkill(m_Parent, m_PrimarySkill);
+	}
+	
+	m_PrimarySkill = FindSkill(lot);
 
-	const auto skill = FindSkill(lot);
-
-	SetSkill(slot, skill);
+	GameMessages::SendAddSkill(m_Parent, m_PrimarySkill, slot);
 }
 
 void InventoryComponent::RemoveItemSkills(const LOT lot) {
@@ -1129,27 +1147,15 @@ void InventoryComponent::RemoveItemSkills(const LOT lot) {
 
 	const auto slot = FindBehaviorSlot(static_cast<eItemType>(info.itemType));
 
-	if (slot == BehaviorSlot::Invalid) {
+	if (slot != BehaviorSlot::Primary) {
 		return;
 	}
 
-	const auto index = m_Skills.find(slot);
+	GameMessages::SendRemoveSkill(m_Parent, m_PrimarySkill);
 
-	if (index == m_Skills.end()) {
-		return;
-	}
+	m_PrimarySkill = 1;
 
-	const auto old = index->second;
-
-	GameMessages::SendRemoveSkill(m_Parent, old);
-
-	m_Skills.erase(slot);
-
-	if (slot == BehaviorSlot::Primary) {
-		m_Skills.insert_or_assign(BehaviorSlot::Primary, 1);
-
-		GameMessages::SendAddSkill(m_Parent, 1, BehaviorSlot::Primary);
-	}
+	GameMessages::SendAddSkill(m_Parent, m_PrimarySkill, BehaviorSlot::Primary);
 }
 
 void InventoryComponent::TriggerPassiveAbility(PassiveAbilityTrigger trigger, Entity* target) {
@@ -1326,6 +1332,71 @@ void InventoryComponent::SetNPCItems(const std::vector<LOT>& items) {
 	Game::entityManager->SerializeEntity(m_Parent);
 }
 
+bool InventoryComponent::AddSkill(uint32_t skillId) {
+	if (std::find(m_Skills.begin(), m_Skills.end(), skillId) != m_Skills.end()) {
+		return false;
+	}
+
+	m_Skills.push_back(skillId);
+
+	UpdateSkills();
+
+	return true;
+}
+
+bool InventoryComponent::RemoveSkill(uint32_t skillId) {
+	const auto index = std::find(m_Skills.begin(), m_Skills.end(), skillId);
+
+	if (index == m_Skills.end()) {
+		return false;
+	}
+
+	m_Skills.erase(index);
+
+	UpdateSkills();
+
+	return true;
+}
+
+
+void InventoryComponent::UpdateSkills() {
+	// There are two skills active at the same time. If the rotation index is greater than the amount of skills / 2, set it to the max number is can be.
+	// This is to prevent the rotation index from going out of bounds.
+	if (m_SkillRotationIndex * 2 >= m_Skills.size()) {
+		m_SkillRotationIndex = 0;
+	}
+
+	const auto startIndex = m_SkillRotationIndex * 2;
+	
+	const auto activeSkillA = m_Skills.size() > startIndex ? m_Skills[startIndex] : 0;
+	const auto activeSkillB = m_Skills.size() > startIndex + 1 ? m_Skills[startIndex + 1] : 0;
+
+	std::cout << "Skill rotation index: " << m_SkillRotationIndex << " Active skills: " << activeSkillA << " " << activeSkillB << "\n";
+	
+	GameMessages::SendRemoveSkill(m_Parent, m_ActiveSkills.first);
+	GameMessages::SendRemoveSkill(m_Parent, m_ActiveSkills.second);
+
+	m_ActiveSkills = { activeSkillA, activeSkillB };
+
+	if (activeSkillA != 0) {
+		GameMessages::SendAddSkill(m_Parent, activeSkillA, BehaviorSlot::Head);
+	}
+
+	if (activeSkillB != 0) {
+		GameMessages::SendAddSkill(m_Parent, activeSkillB, BehaviorSlot::Offhand);
+	}
+}
+
+void InventoryComponent::RotateSkills() {
+	m_SkillRotationIndex++;
+
+	if (m_SkillRotationIndex * 2 >= m_Skills.size()) {
+		m_SkillRotationIndex = 0;
+	}
+
+	UpdateSkills();
+}
+
 InventoryComponent::~InventoryComponent() {
 	for (const auto& inventory : m_Inventories) {
 		delete inventory.second;
@@ -1580,26 +1651,4 @@ void InventoryComponent::UpdatePetXml(tinyxml2::XMLDocument& document) {
 }
 
 
-bool InventoryComponent::SetSkill(int32_t slot, uint32_t skillId) {
-	BehaviorSlot behaviorSlot = BehaviorSlot::Invalid;
-	if (slot == 1) behaviorSlot = BehaviorSlot::Primary;
-	else if (slot == 2) behaviorSlot = BehaviorSlot::Offhand;
-	else if (slot == 3) behaviorSlot = BehaviorSlot::Neck;
-	else if (slot == 4) behaviorSlot = BehaviorSlot::Head;
-	else if (slot == 5) behaviorSlot = BehaviorSlot::Consumable;
-	else return false;
-	return SetSkill(behaviorSlot, skillId);
-}
 
-bool InventoryComponent::SetSkill(BehaviorSlot slot, uint32_t skillId) {
-	if (skillId == 0) return false;
-	const auto index = m_Skills.find(slot);
-	if (index != m_Skills.end()) {
-		const auto old = index->second;
-		GameMessages::SendRemoveSkill(m_Parent, old);
-	}
-
-	GameMessages::SendAddSkill(m_Parent, skillId, slot);
-	m_Skills.insert_or_assign(slot, skillId);
-	return true;
-}

dGame/dComponents/InventoryComponent.h

@@ -22,6 +22,7 @@
 #include "eInventoryType.h"
 #include "eReplicaComponentType.h"
 #include "eLootSourceType.h"
+#include "Observable.h"
 
 class Entity;
 class ItemSet;
@@ -367,23 +368,42 @@ public:
 	 */
 	void UnequipScripts(Item* unequippedItem);
 
-	std::map<BehaviorSlot, uint32_t> GetSkills(){ return m_Skills; };
+	uint32_t GetPrimarySkill() const { return m_PrimarySkill; }
 
-	bool SetSkill(int slot, uint32_t skillId);
-	bool SetSkill(BehaviorSlot slot, uint32_t skillId);
+	const std::vector<uint32_t>& GetSkills(){ return m_Skills; };
+
+	bool AddSkill(uint32_t skillId);
+	bool RemoveSkill(uint32_t skillId);
+	void RotateSkills();
+	void UpdateSkills();
 
 	~InventoryComponent() override;
 
+	static Observable<InventoryComponent*, Item*> OnItemCreated;
+	static Observable<InventoryComponent*, Item*> OnItemDestroyed;
+	static Observable<InventoryComponent*, Item*> OnItemEquipped;
+	static Observable<InventoryComponent*, Item*> OnItemUnequipped;
+	static Observable<InventoryComponent*, Item*> OnItemLoaded;
+	static Observable<InventoryComponent*, Item*> OnCountChanged;
+
 private:
 	/**
 	 * All the inventory this entity possesses
 	 */
 	std::map<eInventoryType, Inventory*> m_Inventories;
 
+	std::map<BehaviorSlot, uint32_t> m_ActivatorSkills;
+
+	uint32_t m_PrimarySkill = 0;
+
 	/**
 	 * The skills that this entity currently has active
 	 */
-	std::map<BehaviorSlot, uint32_t> m_Skills;
+	std::vector<uint32_t> m_Skills;
+
+	std::pair<uint32_t, uint32_t> m_ActiveSkills;
+
+	uint32_t m_SkillRotationIndex = 0;
 
 	/**
 	 * The pets this entity has, mapped by object ID and pet info

dGame/dComponents/LevelProgressionComponent.cpp

@@ -6,6 +6,8 @@
 
 #include "CDRewardsTable.h"
 
+Observable<LevelProgressionComponent*> LevelProgressionComponent::OnLevelUp;
+
 LevelProgressionComponent::LevelProgressionComponent(Entity* parent) : Component(parent) {
 	m_Parent = parent;
 	m_Level = 1;
@@ -80,6 +82,8 @@ void LevelProgressionComponent::HandleLevelUp() {
 	}
 	// Tell the client we have finished sending level rewards.
 	if (rewardingItem) GameMessages::NotifyLevelRewards(m_Parent->GetObjectID(), m_Parent->GetSystemAddress(), m_Level, !rewardingItem);
+
+	OnLevelUp(this);
 }
 
 void LevelProgressionComponent::SetRetroactiveBaseSpeed(){

dGame/dComponents/LevelProgressionComponent.h

@@ -5,6 +5,7 @@
 #include "Component.h"
 #include "eCharacterVersion.h"
 #include "eReplicaComponentType.h"
+#include "Observable.h"
 
 /**
  * Component that handles level progression and serilization.
@@ -81,6 +82,8 @@ public:
 	 */
 	void SetRetroactiveBaseSpeed();
 
+	static Observable<LevelProgressionComponent*> OnLevelUp;
+
 private:
 	/**
 	 * whether the level is dirty

dGame/dComponents/SkillComponent.cpp

@@ -31,6 +31,8 @@ ProjectileSyncEntry::ProjectileSyncEntry() {
 
 std::unordered_map<uint32_t, uint32_t> SkillComponent::m_skillBehaviorCache = {};
 
+Observable<SkillComponent*, uint32_t, bool&, uint32_t> SkillComponent::OnSkillCast;
+
 bool SkillComponent::CastPlayerSkill(const uint32_t behaviorId, const uint32_t skillUid, RakNet::BitStream& bitStream, const LWOOBJID target, uint32_t skillID) {
 	auto* context = new BehaviorContext(this->m_Parent->GetObjectID());
 
@@ -48,6 +50,12 @@ bool SkillComponent::CastPlayerSkill(const uint32_t behaviorId, const uint32_t s
 
 	context->ExecuteUpdates();
 
+	bool success = !context->failed;
+
+	OnSkillCast(this, skillID, success, skillUid);
+
+	context->failed = !success;
+
 	return !context->failed;
 }
 

dGame/dComponents/SkillComponent.h

@@ -14,6 +14,7 @@
 #include "Entity.h"
 #include "Logger.h"
 #include "eReplicaComponentType.h"
+#include "Observable.h"
 
 struct ProjectileSyncEntry {
 	LWOOBJID id = LWOOBJID_EMPTY;
@@ -184,6 +185,9 @@ public:
 	 */
 	uint32_t GetUniqueSkillId();
 
+	// SkillComponent, SkillID, Success, skillUID
+	static Observable<SkillComponent*, uint32_t, bool&, uint32_t> OnSkillCast;
+
 private:
 	/**
 	 * All of the active skills mapped by their unique ID.

dGame/dGameMessages/GameMessages.cpp

@@ -973,11 +973,11 @@ void GameMessages::SendResurrect(Entity* entity) {
 			if (levelComponent) {
 				int32_t healthToRestore = levelComponent->GetLevel() >= 45 ? 8 : 4;
 				if (healthToRestore > destroyableComponent->GetMaxHealth()) healthToRestore = destroyableComponent->GetMaxHealth();
-				destroyableComponent->SetHealth(healthToRestore);
+				destroyableComponent->SetHealth(destroyableComponent->GetMaxHealth());
 
 				int32_t imaginationToRestore = levelComponent->GetLevel() >= 45 ? 20 : 6;
 				if (imaginationToRestore > destroyableComponent->GetMaxImagination()) imaginationToRestore = destroyableComponent->GetMaxImagination();
-				destroyableComponent->SetImagination(imaginationToRestore);
+				destroyableComponent->SetImagination(destroyableComponent->GetMaxImagination());
 			}
 		}
 	});

dGame/dInventory/Inventory.cpp

@@ -212,6 +212,8 @@ void Inventory::AddManagedItem(Item* item) {
 	items.insert_or_assign(id, item);
 
 	free--;
+
+	component->OnItemLoaded(component, item);
 }
 
 void Inventory::RemoveManagedItem(Item* item) {
@@ -226,6 +228,8 @@ void Inventory::RemoveManagedItem(Item* item) {
 	items.erase(id);
 
 	free++;
+
+	component->OnItemDestroyed(component, item);
 }
 
 eInventoryType Inventory::FindInventoryTypeForLot(const LOT lot) {

dGame/dInventory/Item.cpp

@@ -41,6 +41,7 @@ namespace {
 		{ "userModelMod", "um" },
 		{ "userModelOpt", "uo" },
 		{ "reforgedLOT", "rl" },
+		{ "modifiers", "mod" }
 	};
 }
 
@@ -200,6 +201,8 @@ void Item::SetCount(const uint32_t value, const bool silent, const bool disassem
 
 	count = value;
 
+	InventoryComponent::OnCountChanged(inventory->GetComponent(), this);
+
 	if (count == 0) {
 		RemoveFromInventory();
 	}

dGame/dUtilities/SlashCommands/DEVGMCommands.cpp

@@ -1347,23 +1347,17 @@ namespace DEVGMCommands {
 
 	void SetSkillSlot(Entity* entity, const SystemAddress& sysAddr, const std::string args) {
 		const auto splitArgs = GeneralUtils::SplitString(args, ' ');
-		if (splitArgs.size() < 2) return;
+		if (splitArgs.size() < 1) return;
 
 		auto* const inventoryComponent = entity->GetComponent<InventoryComponent>();
 		if (inventoryComponent) {
-			const auto slot = GeneralUtils::TryParse<BehaviorSlot>(splitArgs[0]);
-			if (!slot) {
-				ChatPackets::SendSystemMessage(sysAddr, u"Error getting slot.");
+			const auto skillId = GeneralUtils::TryParse<uint32_t>(splitArgs[0]);
+			if (!skillId) {
+				ChatPackets::SendSystemMessage(sysAddr, u"Error getting skill.");
 				return;
 			} else {
-				const auto skillId = GeneralUtils::TryParse<uint32_t>(splitArgs[1]);
-				if (!skillId) {
-					ChatPackets::SendSystemMessage(sysAddr, u"Error getting skill.");
-					return;
-				} else {
-					if (inventoryComponent->SetSkill(slot.value(), skillId.value())) ChatPackets::SendSystemMessage(sysAddr, u"Set skill to slot successfully");
-					else ChatPackets::SendSystemMessage(sysAddr, u"Set skill to slot failed");
-				}
+				if (inventoryComponent->AddSkill(skillId.value())) ChatPackets::SendSystemMessage(sysAddr, u"Set skill to slot successfully");
+				else ChatPackets::SendSystemMessage(sysAddr, u"Set skill to slot failed");
 			}
 		}
 	}

dNet/BitStreamUtils.h

@@ -5,6 +5,7 @@
 #include "MessageIdentifiers.h"
 #include "BitStream.h"
 #include <string>
+#include <algorithm>
 
 enum class eConnectionType : uint16_t;
 

dWorldServer/WorldServer.cpp

@@ -81,6 +81,8 @@
 #include "eLoginResponse.h"
 #include "SlashCommandHandler.h"
 
+#include "NejlikaHooks.h"
+
 namespace Game {
 	Logger* logger = nullptr;
 	dServer* server = nullptr;
@@ -315,6 +317,8 @@ int main(int argc, char** argv) {
 	// Register slash commands if not in zone 0
 	if (zoneID != 0) SlashCommandHandler::Startup();
 
+	nejlika::NejlikaHooks::InstallHooks();
+
 	Game::logger->Flush(); // once immediately before the main loop
 	while (true) {
 		Metrics::StartMeasurement(MetricVariable::Frame);

thirdparty/CMakeLists.txt

@@ -23,6 +23,10 @@ if(NOT WIN32)
 	target_include_directories(bcrypt PRIVATE "libbcrypt/include/bcrypt")
 endif()
 
+if(CMAKE_CXX_COMPILER_ID MATCHES "Clang|GNU")
+    target_compile_definitions(bcrypt PRIVATE "_POSIX_C_SOURCE=200809L")
+endif()
+
 target_include_directories(bcrypt INTERFACE "libbcrypt/include")
 target_include_directories(bcrypt PRIVATE "libbcrypt/src")