X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=blender%2Fio_mspgl%2Fanimation.py;h=59f34b4d7c532e35e0a852493b81120a1a9fff61;hp=ffce11f596fc8099b2e48e39d8401beca84f45d2;hb=569abc900f42d8e7b70520e2c9ef8a5547878266;hpb=6a832fe1771f8c7bca0faa0d383fbbab062a1c56

diff --git a/blender/io_mspgl/animation.py b/blender/io_mspgl/animation.py
index ffce11f5..59f34b4d 100644
--- a/blender/io_mspgl/animation.py
+++ b/blender/io_mspgl/animation.py
@@ -1,3 +1,4 @@
+import math
 import mathutils
 
 class Curve:
@@ -34,6 +35,7 @@ class Animation:
 		self._action = action
 		self.curves = [Curve(c) for c in action.fcurves]
 		self.fps = 1
+		self.looping = False
 
 		for c in self.curves:
 			for i in range(0, len(c.knots)-1, 3):
@@ -77,6 +79,24 @@ class Animation:
 	def __getattr__(self, attr):
 		return getattr(self._curve, attr)
 
+	def check_looping(self, threshold):
+		self.looping = True
+		for c in self.curves:
+			first_y = c.knots[0][1]
+			last_y = c.knots[-1][1]
+			d = abs(last_y-first_y)
+
+			if c.data_path=="rotation_euler":
+				while d>math.pi/2:
+					d -= math.pi
+				while d<-math.pi/2:
+					d += math.pi
+
+			print("Difference for {} {} is {}".format(c.data_path, c.array_index, d))
+			if d>threshold:
+				self.looping = False
+				break
+
 	def change_fps(self, fps):
 		scale = self.fps/fps
 		self.fps = fps
@@ -89,8 +109,9 @@ class Animation:
 			k.time *= scale
 
 
-def create_animation_from_action(context, action):
+def create_animation_from_action(context, action, *, looping_threshold=0.001):
 	anim = Animation(action)
 	render = context.scene.render
+	anim.check_looping(looping_threshold)
 	anim.change_fps(render.fps/render.fps_base)
 	return anim