Reference no: EM13906943
Develop a program that allows one to control the movement of a ball across the screen. The ball can move on straight lines only, that is, up, down, left, or right. Pressing the arrow keys on the keyboard changes the ball's location.
1. Develop a data representation for the current position of the ball. The position is best described with a pair of positive integers.
2. Develop a data representation for velocity of the ball. You may assume that the ball always moves exactly 10 pixels at a time but remember that velocity also includes the direction of the movement.
3. Develop a data representation for the ball.
4. The function ball-image is written for you. It consumes (the representation of) a ball and produces a rectangle of 300 x 300 pixels with a red dot (diameter 10 pixels) placed at the ball's position.
5. Design the function ball-next, which consumes (the representation of) a ball and create a ball that represents where it will be after one
6. Design a function ball-change, which consumes a ball
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Develop a data representation for the current position
: Develop a data representation for the current position of the ball. The position is best described with a pair of positive integers. Develop a data representation for velocity of the ball. You may assume that the ball always moves exactly 10 pixe..
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