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Add exception handling to len ( ) calls to prevent random bug.

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This commit is contained in:
aignacio_sf
2006-04-29 04:25:50 +00:00
parent 24e74a97e4
commit d3be07a17c
1 changed files with 46 additions and 6 deletions
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direct/src/motiontrail/MotionTrail.py
+46 -6
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@@ -56,6 +56,8 @@ class MotionTrail(NodePath):
self.previous_matrix = None
self.calculate_relative_matrix = False
self.playing = False;
# default options
self.continuous_motion_trail = True
self.color_scale = 1.0
@@ -110,7 +112,14 @@ class MotionTrail(NodePath):
current_time = task.time
index = 0
total_motion_trails = len (MotionTrail.motion_trail_list)
try:
total_motion_trails = len (MotionTrail.motion_trail_list)
except:
print "ERROR: len ( ) exception 1"
total_motion_trails = 0
MotionTrail.motion_trail_list = [ ]
while (index < total_motion_trails):
motion_trail = MotionTrail.motion_trail_list [index]
if (motion_trail.active and motion_trail.check_for_update (current_time)):
@@ -213,10 +222,22 @@ class MotionTrail(NodePath):
def add_vertex (self, vertex_id, vertex_function, context):
motion_trail_vertex = MotionTrailVertex (vertex_id, vertex_function, context)
total_vertices = len (self.vertex_list)
try:
total_vertices = len (self.vertex_list)
except:
print "ERROR: len ( ) exception 2"
total_vertices = 0
self.vertex_list = [ ]
self.vertex_list [total_vertices : total_vertices] = [motion_trail_vertex]
self.total_vertices = len (self.vertex_list)
try:
self.total_vertices = len (self.vertex_list)
except:
print "ERROR: len ( ) exception 3"
self.total_vertices = 0
self.vertex_list = [ ]
return motion_trail_vertex
def set_vertex_color (self, vertex_id, start_color, end_color):
@@ -237,7 +258,13 @@ class MotionTrail(NodePath):
def update_vertices (self):
total_vertices = len (self.vertex_list)
try:
total_vertices = len (self.vertex_list)
except:
print "ERROR: len ( ) exception 4"
total_vertices = 0
self.vertex_list = [ ]
self.total_vertices = total_vertices
if (total_vertices >= 2):
vertex_index = 0
@@ -370,8 +397,14 @@ class MotionTrail(NodePath):
"""
index = 0
last_frame_index = len (self.frame_list) - 1
try:
last_frame_index = len (self.frame_list) - 1
except:
print "ERROR: len ( ) exception 5"
last_frame_index = -1
self.frame_list = [ ]
while (index <= last_frame_index):
motion_trail_frame = self.frame_list [last_frame_index - index]
if (motion_trail_frame.time >= minimum_time):
@@ -386,7 +419,12 @@ class MotionTrail(NodePath):
self.frame_list = [motion_trail_frame] + self.frame_list
# convert frames and vertices to geometry
total_frames = len (self.frame_list)
try:
total_frames = len (self.frame_list)
except:
print "ERROR: len ( ) exception 6"
total_frames = 0
self.frame_list = [ ]
"""
print "total_frames", total_frames
@@ -557,6 +595,7 @@ class MotionTrail(NodePath):
if (self.continuous_motion_trail == False):
self.reset_motion_trail ( )
self.active = True;
self.playing = True;
return
def end_motion_trail (self):
@@ -564,6 +603,7 @@ class MotionTrail(NodePath):
self.active = False
self.reset_motion_trail ( )
self.reset_motion_trail_geometry ( )
self.playing = False;
return
def set_fade (self, time, current_time):