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| local states = {} | |
| local timer = nil | |
| local DVD_W, DVD_H = 300, 300 | |
| -- dvd | |
| local function bounce(s) | |
| s.x = s.x + s.vx | |
| s.y = s.y + s.vy | |
| if s.x <= s.mx or s.x + s.w >= s.mx + s.mw then |