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Ball.java
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Ball.java
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import java.awt.*;
import java.util.*;
public class Ball extends Rectangle {
Random random;
int xVelocity;
int yVelocity;
int initialSpeed = 1;
Ball(int x, int y, int width, int height) {
super(x, y, width, height);
random = new Random();
int randomXDirection = random.nextInt(2); // either 0 or 1.
if (randomXDirection == 0)
randomXDirection--;
setXDirection(randomXDirection * initialSpeed);
int randomYDirection = random.nextInt(2); // either 0 or 1.
if (randomYDirection == 0)
randomYDirection--;
setXDirection(randomYDirection * initialSpeed);
}
public void setXDirection(int randomXDirection) {
xVelocity = randomXDirection;
}
public void setYDirection(int randomYDirection) {
yVelocity = randomYDirection;
}
public void move() {
x += xVelocity;
y += yVelocity;
}
public void draw(Graphics g) {
g.setColor(Color.white);
g.fillOval(x, y, height, width);
}
}