def emit(self):
s = self._sprites[self._particle];
s.exists = true;
s.x = self.x - (s.width>>1);
if(self.width != 0):
s.x += Math.random()*self.width;
s.y = self.y - (s.height>>1);
if(self.height != 0):
s.y += Math.random()*self.height;
s.velocity.x = self.minVelocity.x;
if(self.minVelocity.x != self.maxVelocity.x):
s.velocity.x += Math.random()*(self.maxVelocity.x-self.minVelocity.x);
s.velocity.y = self.minVelocity.y;
if(self.minVelocity.y != self.maxVelocity.y):
s.velocity.y += Math.random()*(self.maxVelocity.y-self.minVelocity.y);
s.acceleration.y = self._gravity;
s.angularVelocity = self._minRotation;
if(self._minRotation != self._maxRotation):
s.angularVelocity += Math.random()*(self._maxRotation-self._minRotation);
if(s.angularVelocity != 0):
s.angle = Math.random()*360-180;
s.drag.x = self._drag;
s.drag.y = self._drag;
self._particle+=1
if(self._particle >= len(self._sprites)):
self._particle = 0;
s.onEmit();
def emit(self):
s = self._sprites[self._particle]
s.exists = true
s.x = self.x - (s.width >> 1)
if (self.width != 0):
s.x += Math.random() * self.width
s.y = self.y - (s.height >> 1)
if (self.height != 0):
s.y += Math.random() * self.height
s.velocity.x = self.minVelocity.x
if (self.minVelocity.x != self.maxVelocity.x):
s.velocity.x += Math.random() * (self.maxVelocity.x -
self.minVelocity.x)
s.velocity.y = self.minVelocity.y
if (self.minVelocity.y != self.maxVelocity.y):
s.velocity.y += Math.random() * (self.maxVelocity.y -
self.minVelocity.y)
s.acceleration.y = self._gravity
s.angularVelocity = self._minRotation
if (self._minRotation != self._maxRotation):
s.angularVelocity += Math.random() * (self._maxRotation -
self._minRotation)
if (s.angularVelocity != 0):
s.angle = Math.random() * 360 - 180
s.drag.x = self._drag
s.drag.y = self._drag
self._particle += 1
if (self._particle >= len(self._sprites)):
self._particle = 0
s.onEmit()
def randomFrame(self):
self._pixels=self.pixels.get_region(Math.floor(Math.random()*(self.pixels.width/self._bw))*self._bw,0,self._bw,self._bh)
