6. Animation
The functions to use with big-bang: draw handler, mouse handler.
Actually making the animation requires a draw handler and a mouse handler. You will have to write those.
Draw Handler
- Create a background that includes the target and the controls.
- Draw the ball at the position indicated by the model.
draw-h: posn(model) -> image
Mouse Handler
When the mouse is inside the control grid, the ball should move. Otherwise nothing happens.
Big Bang
This is what my big-bang looks like.
(big-bang (make-posn 200 100)
(check-with posn?)
(stop-when win? win-screen)
(on-draw draw-h)
(on-mouse mouse-h))