示例#1
0
	def move_right(self):
		if not self.collision:
			#cannot change dir in the air
			return None
		(P, Q) = self.collision
		(x, y) = p.vsub(Q, P)
		if self.collision and x <= 0:
			if abs(x) >= abs(y):
				#surface angle leq 45, can move normally
				self.v = p.proj((self.maxImpulse, 0),
								p.vsub(self.collision[1], self.collision[0]))
			else:
				#surface angle > 45, cannot move easily
				self.v = (self.minImpulse, 0)
示例#2
0
	def particleEdgeCollision(self, wp, P, Q):
		wp.v = (0, 0)
		if p.vsub(Q, P)[0] <= 0:
			#then collided from the top
			wp.g = p.proj(wp.gravity, p.vsub(Q, P))
示例#3
0
	def particleVertexCollision(self, wp, P):
		R = (wp.x, wp.y)
		if p.vsub(R, P)[1] <= 0:
			wp.g = p.proj(wp.gravity, p.vsub(R, P))