def pocket_walls_collision(self, start_point, end_point):
incoming_vec = self.coords - start_point
pocket_wall_vec = end_point - start_point
projected = Vec2D.projection(incoming_vec, pocket_wall_vec)
distance = Vec2D.get_distance(incoming_vec, projected)
if 0 <= math.fabs(projected.x) <=\
math.fabs(end_point.x - start_point.x) and\
0 <= math.fabs(projected.y) <=\
math.fabs(end_point.y - start_point.y) and\
distance < self.RADIUS:
self.coords = Vec2D.normalized(incoming_vec - projected) *\
self.RADIUS + start_point + projected
self.velocity = 2 * (self.velocity.dot(pocket_wall_vec)
/ pocket_wall_vec.dot(pocket_wall_vec)) *\
pocket_wall_vec - self.velocity
def pocket_walls_collision(self, start_point, end_point):
incoming_vec = self.coords - start_point
pocket_wall_vec = end_point - start_point
projected = Vec2D.projection(incoming_vec, pocket_wall_vec)
distance = Vec2D.get_distance(incoming_vec, projected)
if 0 <= math.fabs(projected.x) <=\
math.fabs(end_point.x - start_point.x) and\
0 <= math.fabs(projected.y) <=\
math.fabs(end_point.y - start_point.y) and\
distance < self.RADIUS:
self.coords = Vec2D.normalized(incoming_vec - projected) *\
self.RADIUS + start_point + projected
self.velocity = 2 * (self.velocity.dot(pocket_wall_vec)
/ pocket_wall_vec.dot(pocket_wall_vec)) *\
pocket_wall_vec - self.velocity
