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Commit 8c4e563

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Michael James Williams
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Initial files from Lee Stemkoski
1 parent 7d37243 commit 8c4e563

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‎AnimatedImage.java

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import javafx.scene.image.Image;
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public class AnimatedImage
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{
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// assumes animation loops,
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// each image displays for equal time
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public Image[] frames;
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public double duration;
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public Image getFrame(double time)
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{
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int index = (int)((time % (frames.length * duration)) / duration);
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return frames[index];
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}
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}

‎Circle.java

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import javafx.geometry.Point2D;
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public class Circle
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{
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private Point2D center;
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private double radius;
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public Circle(double x, double y, double r)
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{
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setCenter(x,y);
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setRadius(r);
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}
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public void setCenter(double x, double y)
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{
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center = new Point2D(x,y);
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}
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public void setRadius(double r)
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{
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radius = r;
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}
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public double getX()
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{
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return center.getX();
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}
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public double getY()
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{
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return center.getY();
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}
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public double getRadius()
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{
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return radius;
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}
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public boolean containsPoint(double x, double y)
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{
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return (center.distance(x,y) < radius);
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}
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}

‎Example1.java

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import javafx.application.Application;
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import javafx.stage.Stage;
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public class Example1 extends Application
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{
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public static void main(String[] args)
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{
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launch(args);
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}
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@Override
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public void start(Stage theStage)
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{
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theStage.setTitle("Hello, World!");
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theStage.show();
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}
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}

‎Example2.java

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import javafx.application.Application;
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import javafx.stage.Stage;
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import javafx.scene.Scene;
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import javafx.scene.Group;
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import javafx.scene.canvas.Canvas;
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import javafx.scene.canvas.GraphicsContext;
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import javafx.scene.paint.Color;
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import javafx.scene.text.Font;
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import javafx.scene.text.FontWeight;
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import javafx.scene.text.FontPosture;
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import javafx.scene.image.Image;
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public class Example2 extends Application
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{
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public static void main(String[] args)
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{
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launch(args);
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}
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@Override
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public void start(Stage theStage)
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{
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theStage.setTitle( "Canvas Example" );
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Group root = new Group();
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Scene theScene = new Scene( root );
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theStage.setScene( theScene );
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Canvas canvas = new Canvas( 400, 200 );
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root.getChildren().add( canvas );
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GraphicsContext gc = canvas.getGraphicsContext2D();
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gc.setFill( Color.RED );
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gc.setStroke( Color.BLACK );
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gc.setLineWidth(2);
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Font theFont = Font.font( "Times New Roman", FontWeight.BOLD, 48 );
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gc.setFont( theFont );
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gc.fillText( "Hello, World!", 60, 50 );
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gc.strokeText( "Hello, World!", 60, 50 );
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Image earth = new Image( "earth.png" );
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gc.drawImage( earth, 180, 100 );
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theStage.show();
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}
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}

‎Example3.java

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import javafx.application.Application;
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import javafx.stage.Stage;
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import javafx.scene.Scene;
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import javafx.scene.Group;
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import javafx.scene.canvas.Canvas;
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import javafx.scene.canvas.GraphicsContext;
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import javafx.scene.image.Image;
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import javafx.animation.AnimationTimer;
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// Animation of Earth rotating around the sun. (Hello, world!)
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public class Example3 extends Application
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{
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public static void main(String[] args)
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{
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launch(args);
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}
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@Override
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public void start(Stage theStage)
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{
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theStage.setTitle( "AnimationTimer Example" );
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Group root = new Group();
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Scene theScene = new Scene( root );
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theStage.setScene( theScene );
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Canvas canvas = new Canvas( 512, 512 );
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root.getChildren().add( canvas );
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GraphicsContext gc = canvas.getGraphicsContext2D();
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Image earth = new Image( "earth.png" );
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Image sun = new Image( "sun.png" );
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Image space = new Image( "space.png" );
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final long startNanoTime = System.nanoTime();
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new AnimationTimer()
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{
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public void handle(long currentNanoTime)
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{
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double t = (currentNanoTime - startNanoTime) / 1000000000.0;
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double x = 232 + 128 * Math.cos(t);
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double y = 232 + 128 * Math.sin(t);
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// Clear the canvas
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gc.clearRect(0, 0, 512,512);
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// background image clears canvas
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gc.drawImage( space, 0, 0 );
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gc.drawImage( earth, x, y );
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gc.drawImage( sun, 196, 196 );
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}
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}.start();
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theStage.show();
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}
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}

‎Example3AI.java

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import javafx.application.Application;
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import javafx.stage.Stage;
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import javafx.scene.Scene;
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import javafx.scene.Group;
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import javafx.scene.canvas.Canvas;
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import javafx.scene.canvas.GraphicsContext;
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import javafx.scene.image.Image;
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import javafx.animation.AnimationTimer;
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import javafx.animation.KeyFrame;
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import javafx.util.Duration;
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import javafx.event.EventHandler;
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import javafx.event.ActionEvent;
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// Animation of Earth rotating around the sun. (Hello, world!)
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public class Example3AI extends Application
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{
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public static void main(String[] args)
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{
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launch(args);
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}
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@Override
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public void start(Stage theStage)
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{
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theStage.setTitle( "AnimatedImage Example" );
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Group root = new Group();
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Scene theScene = new Scene( root );
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theStage.setScene( theScene );
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Canvas canvas = new Canvas( 512, 512 );
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root.getChildren().add( canvas );
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GraphicsContext gc = canvas.getGraphicsContext2D();
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Image earth = new Image( "earth.png" );
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Image sun = new Image( "sun.png" );
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Image space = new Image( "space.png" );
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AnimatedImage ufo = new AnimatedImage();
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Image[] imageArray = new Image[6];
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for (int i = 0; i < 6; i++)
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imageArray[i] = new Image( "ufo_" + i + ".png" );
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ufo.frames = imageArray;
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ufo.duration = 0.100;
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final long startNanoTime = System.nanoTime();
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new AnimationTimer()
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{
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public void handle(long currentNanoTime)
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{
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double t = (currentNanoTime - startNanoTime) / 1000000000.0;
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double x = 232 + 128 * Math.cos(t);
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double y = 232 + 128 * Math.sin(t);
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gc.drawImage( space, 0, 0 );
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gc.drawImage( earth, x, y );
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gc.drawImage( sun, 196, 196 );
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gc.drawImage( ufo.getFrame(t), 450, 25 );
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}
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}.start();
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theStage.show();
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}
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}

‎Example3T.java

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import javafx.application.Application;
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import javafx.stage.Stage;
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import javafx.scene.Scene;
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import javafx.scene.Group;
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import javafx.scene.canvas.Canvas;
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import javafx.scene.canvas.GraphicsContext;
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import javafx.scene.image.Image;
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import javafx.animation.Timeline;
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import javafx.animation.KeyFrame;
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import javafx.util.Duration;
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import javafx.event.EventHandler;
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import javafx.event.ActionEvent;
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// An alternative implementation of Example 3,
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// using the Timeline, KeyFrame, and Duration classes.
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// Animation of Earth rotating around the sun. (Hello, world!)
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public class Example3T extends Application
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{
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public static void main(String[] args)
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{
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launch(args);
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}
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@Override
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public void start(Stage theStage)
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{
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theStage.setTitle( "Timeline Example" );
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Group root = new Group();
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Scene theScene = new Scene( root );
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theStage.setScene( theScene );
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Canvas canvas = new Canvas( 512, 512 );
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root.getChildren().add( canvas );
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GraphicsContext gc = canvas.getGraphicsContext2D();
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Image earth = new Image( "earth.png" );
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Image sun = new Image( "sun.png" );
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Image space = new Image( "space.png" );
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Timeline gameLoop = new Timeline();
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gameLoop.setCycleCount( Timeline.INDEFINITE );
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final long timeStart = System.currentTimeMillis();
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KeyFrame kf = new KeyFrame(
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Duration.seconds(0.017), // 60 FPS
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new EventHandler<ActionEvent>()
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{
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public void handle(ActionEvent ae)
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{
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double t = (System.currentTimeMillis() - timeStart) / 1000.0;
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double x = 232 + 128 * Math.cos(t);
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double y = 232 + 128 * Math.sin(t);
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// Clear the canvas
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gc.clearRect(0, 0, 512,512);
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// background image clears canvas
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gc.drawImage( space, 0, 0 );
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gc.drawImage( earth, x, y );
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gc.drawImage( sun, 196, 196 );
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}
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});
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gameLoop.getKeyFrames().add( kf );
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gameLoop.play();
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theStage.show();
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}
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}

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