109 lines
5.1 KiB
HTML
109 lines
5.1 KiB
HTML
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<title>BouncingBall.java</title>
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<table width="100%"><tr><td align="center">/home/caleb/ASDV-Java/Semester 3/Assignments/lab3_CalebFontenot/src/lab3_calebfontenot/BouncingBall.java</td></tr></table>
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<pre>
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<span class="comment">/*</span>
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<span class="comment"> * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license</span>
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<span class="comment"> * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template</span>
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<span class="comment"> */</span>
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<span class="literal">package</span> lab3_calebfontenot;
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<span class="literal">import</span> javafx.animation.KeyFrame;
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<span class="literal">import</span> javafx.animation.Timeline;
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<span class="literal">import</span> <span class="literal">static</span> javafx.application.Application.launch;
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<span class="literal">import</span> javafx.beans.property.DoubleProperty;
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<span class="literal">import</span> javafx.event.ActionEvent;
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<span class="literal">import</span> javafx.event.EventHandler;
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<span class="literal">import</span> javafx.scene.layout.Pane;
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<span class="literal">import</span> javafx.scene.paint.Color;
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<span class="literal">import</span> javafx.scene.shape.Circle;
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<span class="literal">import</span> javafx.util.Duration;
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<span class="comment">/**</span>
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<span class="comment"> *</span>
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<span class="comment"> * </span><span class="comment">@author</span> <span class="comment">caleb</span>
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<span class="comment">*/</span>
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<span class="literal">public</span> <span class="literal">class</span> BouncingBall <span class="literal">extends</span> Pane {
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<span class="literal">final</span> <span class="literal">double</span> radius = <span class="number">20</span>;
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<span class="literal">private</span> <span class="literal">double</span> x = radius, y = radius;
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<span class="literal">private</span> <span class="literal">double</span> dx = <span class="number">1</span>, dy = <span class="number">1</span>;
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<span class="literal">private</span> Circle circle = <span class="literal">new</span> Circle(x, y, radius);
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<span class="literal">private</span> Timeline animation;
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<span class="literal">public</span> BouncingBall()
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{
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circle.setFill(Color.BROWN); <span class="comment">// Set ball color</span>
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getChildren().add(circle); <span class="comment">// Place a ball into this pane</span>
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<span class="comment">// Create an animation for moving the ball</span>
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animation = <span class="literal">new</span> Timeline(<span class="literal">new</span> KeyFrame(Duration.millis(<span class="number">1</span>), <span class="literal">new</span> EventHandler<ActionEvent>() {
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@Override
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<span class="literal">public</span> <span class="literal">void</span> handle(ActionEvent t)
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{
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moveBall();
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}
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})
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);
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animation.setRate(animation.getRate() * <span class="number">20</span>);
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animation.setCycleCount(Timeline.INDEFINITE);
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animation.play();
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}
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<span class="literal">private</span> <span class="literal">void</span> moveBall() {
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<span class="comment">// Check boundaries</span>
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<span class="literal">if</span> (x < radius || x > getWidth() - radius) {
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dx *= -<span class="number">1</span>; <span class="comment">// Change ball move direction</span>
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}
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<span class="literal">if</span> (y < radius || y > getHeight() - radius) {
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dy *= -<span class="number">1</span>; <span class="comment">// Change ball move direction</span>
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}
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<span class="comment">// Adjust ball position by 1 or -1</span>
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x += dx;
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y += dy;
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circle.setCenterX(x);
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circle.setCenterY(y);
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}
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<span class="literal">public</span> <span class="literal">void</span> play() {
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animation.play();
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}
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<span class="literal">public</span> <span class="literal">void</span> pause() {
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animation.pause();
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}
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<span class="literal">public</span> <span class="literal">void</span> increaseSpeed() {
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animation.setRate(animation.getRate() * <span class="number">1.5</span>);
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System.out.println(animation.getRate());
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}
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<span class="literal">public</span> <span class="literal">void</span> decreaseSpeed() {
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animation.setRate(animation.getRate() * <span class="number">1.5</span> > <span class="number">0</span> ? animation.getRate() / <span class="number">1.5</span> : <span class="number">0</span>);
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System.out.println(animation.getRate());
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}
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<span class="literal">public</span> DoubleProperty rateProperty() {
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<span class="literal">return</span> animation.rateProperty();
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}
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}
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</pre></body>
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