OpenSpace/data/assets/util/default_joystick.asset

local propertyHelper = asset.require('./property_helper')

-- Allowed values for the second parameter of bindJoystickAxis:
-- "None"
-- "Orbit X"
-- "Orbit Y"
-- "Zoom In"
-- "Zoom Out"
-- "LocalRoll X"
-- "LocalRoll Y"
-- "GlobalRoll X"
-- "GlobalRoll Y"
-- "Pan X"
-- "Pan Y"
-- Third parameter determines whether the axis should be inverted
-- Fourth parameter determines whether the axis should be normalized from [-1,1] to [0,1]


local XBoxController = {
    LeftThumbStick = { 0 , 1 },
    RightThumbStick = { 2, 3 },
    LeftTrigger = 4,
    RightTrigger = 5,
    A = 0,
    B = 1,
    X = 2,
    Y = 3,
    LB = 4,
    RB = 5,
    Select = 6,
    Start = 7,
    LeftStick = 8,
    RightStick = 9,
    DPad = {
        Up = 10,
        Right = 11,
        Down = 12,
        Left = 13
    }
}

local PS4Controller = {
    LeftThumbStick = { 0 , 1 },
    RightThumbStick = { 2, 5 },
    LeftTrigger = 3,
    RightTrigger = 4,
    A = 3, -- Triangle
    B = 0, -- Square
    X = 2, -- Circle
    Y = 1, -- Cross
    LB = 4,
    RB = 5,
    Select = 9, -- options
    Start = 12, -- PS button
    LeftStick = 10,
    RightStick = 11,
    DPad = {
        Up = 14,
        Right = 15,
        Down = 16,
        Left = 17
    }
}

-- Variables to store the state of the joystick between frames
Joystick = {}
Joystick.State = {}
Joystick.State.IsInRollMode = false
Joystick.State.Axis = {}

local bindLocalRoll = function(axis)
return [[
        -- We only want to store the current state in the first mode that is enabled, otherwise we will overwrite the backup
        if not Joystick.State.IsInRollMode then
            -- Save current axis state
            Joystick.State.Axis.Type, Joystick.State.Axis.Inverted, Joystick.State.Axis.Normalized = openspace.navigation.joystickAxis(]] .. axis .. [[)
        end

        -- Set new axis state
        openspace.navigation.bindJoystickAxis(]] .. axis .. [[, "LocalRoll X", true);
        Joystick.State.IsInRollMode = true
    ]]
end

local bindGlobalRoll = function(axis)
    return [[
        -- We only want to store the current state in the first mode that is enabled, otherwise we will overwrite the backup
        if not Joystick.State.IsInRollMode then
            -- Save current axis state
            Joystick.State.Axis.Type, Joystick.State.Axis.Inverted, Joystick.State.Axis.Normalized = openspace.navigation.joystickAxis(]] .. axis .. [[)
        end

        -- Set new axis state
        openspace.navigation.bindJoystickAxis(]] .. axis .. [[, "GlobalRoll X", true);
        Joystick.State.IsInRollMode = true
    ]]
end

local unbindRoll = function(axis)
    return [[
        -- Reset previous state
        openspace.navigation.bindJoystickAxis(]] .. axis .. [[, Joystick.State.Axis.Type, Joystick.State.Axis.Inverted, Joystick.State.Axis.Normalized);
]]
end

asset.onInitialize(function()
    -- Set the controller to the connected controller
    -- Currently:  XBoxController  or  PS4Controller
    local controller = XBoxController;

    openspace.navigation.setAxisDeadZone(controller.LeftThumbStick[1], 0.15)
    openspace.navigation.setAxisDeadZone(controller.LeftThumbStick[2], 0.15)
    openspace.navigation.setAxisDeadZone(controller.RightThumbStick[1], 0.15)
    openspace.navigation.setAxisDeadZone(controller.RightThumbStick[2], 0.15)
    openspace.navigation.setAxisDeadZone(controller.LeftTrigger, 0.15)
    openspace.navigation.setAxisDeadZone(controller.RightTrigger, 0.15)

    openspace.navigation.bindJoystickAxis(controller.LeftThumbStick[1], "Orbit X");
    openspace.navigation.bindJoystickAxis(controller.LeftThumbStick[2], "Orbit Y", true);
    openspace.navigation.bindJoystickAxis(controller.RightThumbStick[1], "Pan X", true);
    openspace.navigation.bindJoystickAxis(controller.RightThumbStick[2], "Pan Y", true);
    openspace.navigation.bindJoystickAxis(controller.LeftTrigger, "Zoom Out", false, true);
    openspace.navigation.bindJoystickAxis(controller.RightTrigger, "Zoom In", false, true);

    openspace.navigation.bindJoystickButton(
        controller.LB,
        bindLocalRoll(controller.RightThumbStick[1]),
        "Switch to local roll mode"
    )
    openspace.navigation.bindJoystickButton(
        controller.LB,
        unbindRoll(controller.RightThumbStick[1]),
        "Switch back to normal mode",
        "Release"
    )
    openspace.navigation.bindJoystickButton(
        controller.RB,
        bindGlobalRoll(controller.RightThumbStick[1]),
        "Switch to global roll mode"
    )
    openspace.navigation.bindJoystickButton(
        controller.RB,
        unbindRoll(controller.RightThumbStick[1]),
        "Switch back to normal mode",
        "Release"
    )

    openspace.navigation.bindJoystickButton(
        controller.A,
        propertyHelper.invert('NavigationHandler.OrbitalNavigator.Friction.ZoomFriction'),
        "Toggle zoom friction"
    )
    openspace.navigation.bindJoystickButton(
        controller.B,
        propertyHelper.invert('NavigationHandler.OrbitalNavigator.Friction.RotationalFriction'),
        "Toggle rotational friction"
    )
    openspace.navigation.bindJoystickButton(
        controller.DPad.Left,
        propertyHelper.invert('NavigationHandler.OrbitalNavigator.Friction.RollFriction'),
        "Toggle roll friction"
    )

    openspace.navigation.bindJoystickButton(
        controller.X,
        "openspace.setPropertyValue('NavigationHandler.Origin', 'Earth')",
        "Switch target to Earth"
    )
    openspace.navigation.bindJoystickButton(
        controller.Y,
        "openspace.setPropertyValue('NavigationHandler.Origin', 'Mars')",
        "Switch target to Mars"
    )
end)