Update the ball\'s position.
(self, frames_per_second)
| 107 | self.err -= e |
| 108 | |
| 109 | def move(self, frames_per_second): |
| 110 | 'Update the ball\'s position.' |
| 111 | self.vel += self.err |
| 112 | self.err = Vector(0, 0) |
| 113 | self.pos += self.vel / frames_per_second |
| 114 | |
| 115 | ################################################################################ |
| 116 |