I tried to implement a motion blur using layer and putting all blurs
on it. But it seems veeery slow. FPS drops 20-30 on my old PC.
----------------------------------
class BoxBlur(Layer):
"Box guy motion blur"
def __init__(self, box):
Layer.__init__(self)
self.box = box
#self.anchor = self.box.anchor
self.active = False
self.moveBlur = False
self.boostBlur = False
def update(self,dt):
self.active = True if self.box.velocityVec.tuple() !=
box2d.b2Vec2_zero.tuple() else False
#print pyglet.clock._default._schedule_interval_items
if self.active:
if self.box.boosting:
if self.moveBlur:
self.unschedule(self.addMoveBlur)
self.moveBlur = False
if not self.moveBlur:
self.schedule_interval(self.addMoveBlur,
1/500.)
self.moveBlur = True
elif not self.active:
self.moveBlur = False
self.unschedule(self.addMoveBlur)
def addMoveBlur(self,dt):
blur = Sprite(Images.box,opacity=200)
blur._group = pyglet.sprite.SpriteGroup(blur._texture,
GL_SRC_ALPHA, GL_ONE, None)
blur._create_vertex_list()
blur.position = self.box.position
blur.rotation = self.box.rotation
blur.color = self.box.moveColor
blur.scale=self.box.scale
self.add(blur)
blur.do(FadeOut(1.0) + self.RemoveBlur())
class RemoveBlur( InstantAction ):
def init(self):
pass
def start(self):
self.target.parent.remove(self.target)
----------------------------------
I found other solution, but don't know how to do it. Hep please.
1. Optimize exisiting Layer-based code. Lotsa Python calls makes it
very slow i guess.
2. Use ParticleSystem emitting particles (blurs) that stays in place
just after emitted while the ParticleSystem moves together with the
playersprite.
3. Use code from cocos2d-iphone StreakMotion test (experimental) (?)
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