def collides(self,p):
#if Geometry.intersec_seg(self,{'x':p}):
#try:
# if Geometry.intersect(self.x1,self.y1,self.x2,self.y2,p.x,p.y,p.old_x,p.old_y):
# p.kill()
#except ZeroDivisionError:
# pass
i = Geometry.intersect_seg(self.x1,self.y1,self.x2,self.y2,p.x,p.y,p.old_x,p.old_y)
#if i is not None: p.kill()
#if i is not None: p.engine.rem_part(p)
if i is not None:
if self.is_a_barrier:
p.kill()
else:
#print "Mirror intersection!! ", p.id
# ix,iy = i
# p.x = ix
# p.y = iy
# p.x = p.old_x
# p.y = p.old_y
p.x = (i[0]*9+p.old_x)/10.0
p.y = (i[1]*9+p.old_y)/10.0
p.vx, p.vy = Geometry.reflect(self.x2-self.x1, self.y2-self.y1, p.vx, p.vy)
