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Aufgabe 2.2 - hitsPaddle(Paddle p) - tests whether the ball touches the paddle's hit box.

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This commit is contained in:
rxbn_ 2019-12-03 00:03:36 +01:00
parent dcc68e837a
commit 78159521c7
2 changed files with 40 additions and 2 deletions
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38
src/break_out/model/Ball.java
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@ -93,17 +93,51 @@ public class Ball implements IBall {
}
/**
* test if Ball hits paddle
* tests whether the ball touches the paddle's hit box.
* @param paddle paddle which will be tested
* @return true when ball hits paddle
* @return true when ball hits the paddle
*/
public boolean hitsPaddle(Paddle paddle) {
// paddles position
Position posPaddle = paddle.getPosition();
// balls position
Position posBall = this.getPosition();
// test balls y position against paddles y values
boolean testPaddleY = (
(posBall.getY() <= posPaddle.getY()+paddle.getHeight() && posBall.getY() >= posPaddle.getY())
|| (posBall.getY()+Constants.BALL_DIAMETER >= posPaddle.getY() && posBall.getY() <= posPaddle.getY()+paddle.getHeight())
);
// test balls x position against paddles x values
boolean testPaddleX = (
posBall.getX() >= posPaddle.getX() && posBall.getX() <= posPaddle.getX()+paddle.getWidth()
);
// if balls y position is in paddles y values, verify x position
if(testPaddleY) {
// DEBUG OUTPUT
//System.out.println("ball is in y area of paddle: "+String.format("x, y, w, h: %s, %s, %s, %s", posPaddle.getX(), posPaddle.getY(), paddle.getWidth(), paddle.getHeight()));
// if ball is in paddles hit box
if(testPaddleX) {
// DEBUG OUTPUT
//System.out.println("ball hits paddle: "+String.format("x, y, w, h: %s, %s, %s, %s", posPaddle.getX(), posPaddle.getY(), paddle.getWidth(), paddle.getHeight()));
return true;
}
}
// default output, ball doesn't hit paddle
return false;
}
/**
* Ball got hit by Paddle paddle
* @param paddle hitbox mechanism of paddle
* @todo implementation
*/
public void reflectOnPaddle(Paddle paddle) {
return;

4
src/break_out/model/Level.java
View File

@ -116,6 +116,10 @@ public class Level extends Thread implements ILevel {
// Call here the balls method for reacting on the borders of the playground
this.ball.reactOnBorder();
// if ball hits paddle (top|bottom), reflect ball
if(this.ball.hitsPaddle(paddleTop)) this.ball.reflectOnPaddle(paddleTop);
if(this.ball.hitsPaddle(paddleBottom)) this.ball.reflectOnPaddle(paddleBottom);
// Tells the observer to repaint the components on the playground
game.notifyObservers();