17.C
1. Quick Quit
Make a 200x100 colored rectangle in the middle of a 300x200 scene.
When you click on the rectangle:
- the shape changes to a 200x100 ellipse
- the animation stops
Discuss:
- model
- draw handler: how will you show the rectangle? the ellipse?
- mouse handler
Write two check-expects for the mouse-handler:
- click in the rectangle
- click but not in the rectangle
Then we write functions.
2. Random Shapes
Write an animation that will show randomly of these images:
- 1 triangle,
- 2 squares,
- 3 circles, or
- the word WIN
They should all be equally likely.
In this part, the word WIN should just appear like the other choices.
The shape should change randomly every 0.5 seconds.
3. Elementary School Shapes
Modify to your random shapes animation.
When you hit the number key corresponding to the number of shapes you see on the screen, you win. Otherwise you lose.
Optional: Hitting a non-numbered key is ignored.
- Winning shows the “win” screen.
- Losing: add some kind of “that’s not it” screen.
- When you win or lose, the animation quits.
The “win” screen should not be one of the random choices.
Discussion:
- What model will you use?
- How will you represent the “win” and “lose” states with your model?