diff --git a/pom.xml b/pom.xml
index 53a059ee66a70ef50dbbb866e904112f2ae64eb3..31f71f2f89db024293be17c164419ce3b1564efe 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>vsb-cs-java1</groupId>
- <artifactId>lab02</artifactId>
+ <artifactId>lab03</artifactId>
<version>0.0.1-SNAPHOST</version>
<packaging>jar</packaging>
<properties>
diff --git a/src/main/java/lab/App.java b/src/main/java/lab/App.java
index ce7b88348cbc4bb99ccce807e24e61938cc480d9..c18b1b43c88377cd186e0938b7d52dc4ae0ecebf 100644
--- a/src/main/java/lab/App.java
+++ b/src/main/java/lab/App.java
@@ -4,7 +4,6 @@ import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
-import javafx.scene.canvas.GraphicsContext;
import javafx.stage.Stage;
import javafx.stage.WindowEvent;
@@ -31,7 +30,7 @@ public class App extends Application {
scene.getStylesheets().add(getClass().getResource("application.css").toExternalForm());
primaryStage.setScene(scene);
primaryStage.resizableProperty().set(false);
- primaryStage.setTitle("Java 1 - 2nd laboratory");
+ primaryStage.setTitle("Java 1 - 3rd laboratory");
primaryStage.show();
//Exit program when main window is closed
@@ -50,13 +49,7 @@ public class App extends Application {
*@return nothing
*/
private void drawScene() {
- //graphic context is used for a painting
- GraphicsContext gc = canvas.getGraphicsContext2D();
- int timeout = 200;
- while (Routines.isEndOfThreadRequestedByJavaVM()) {
- Routines.sleep(timeout);
- double deltaT = timeout / 1000.;
- }
+ new Laboratory().draw(canvas);
}
private void exitProgram(WindowEvent evt) {
diff --git a/src/main/java/lab/BulletAnimated.java b/src/main/java/lab/BulletAnimated.java
new file mode 100644
index 0000000000000000000000000000000000000000..58acd4f302b0ecb7801c33da10cb096f082da020
--- /dev/null
+++ b/src/main/java/lab/BulletAnimated.java
@@ -0,0 +1,85 @@
+package lab;
+
+import javafx.geometry.Point2D;
+import javafx.scene.canvas.GraphicsContext;
+import javafx.scene.image.Image;
+
+public class BulletAnimated {
+
+ private Point2D position;
+ private Point2D start;
+ private Point2D speed;
+ private Point2D initialSpeed;
+ private double size;
+ private double mass = 2;
+ private double strenghtOfCannon = 2;
+ private double cannonLength = 100;
+ private boolean accelerate = true;
+ private boolean hitToGround = false;
+
+ private double crossSectionalArea;
+ private double dragCoefficient = 0.47;
+
+ private Image image;
+ private World world;
+ private Cannon cannon;
+
+ public BulletAnimated(World world, Cannon cannon) {
+ this(world, cannon, new Point2D(0, 0), new Point2D(0, 0), 10);
+ }
+
+ public BulletAnimated(World world, Cannon cannon, Point2D start, Point2D speed, double size) {
+ this.start = start;
+ this.position = this.start;
+ this.initialSpeed = speed;
+ this.speed = speed;
+ this.size = size;
+ this.world = world;
+ this.cannon = cannon;
+ image = new Image(getClass().getResourceAsStream("fireball-transparent.gif"), size, size,
+ true, true);
+ }
+
+ public void draw(GraphicsContext gc) {
+ gc.save();
+ Point2D canvasPosition = world.getCanvasPoint(position);
+ gc.drawImage(image, canvasPosition.getX(), canvasPosition.getY());
+ gc.restore();
+ }
+
+ public void simulate(double timeStep) {
+ if (accelerate && start.distance(position) < cannonLength) {
+ double cannonAngle = cannon.getAngle();
+ speed = speed
+ .add(new Point2D(Math.cos(cannonAngle) * strenghtOfCannon, Math.sin(cannonAngle) * strenghtOfCannon)
+ .multiply(1 / mass));
+ } else if (!hitToGround) {
+ accelerate = false;
+ Point2D airResistanceforce = new Point2D(
+ -1. / 2 * crossSectionalArea * Constants.AIR_DENSITY * dragCoefficient * Math.pow(speed.getX(), 2),
+ -1. / 2 * crossSectionalArea * Constants.AIR_DENSITY * 0.47 * Math.pow(speed.getY(), 2));
+ Point2D acceleration = new Point2D(-airResistanceforce.getX() * mass,
+ (-Constants.GRAVITATIONAL_ACCELERATION + airResistanceforce.getY()) * mass);
+ speed = speed.add(acceleration.multiply(timeStep / 1000));
+ }
+ if (!hitToGround) {
+ position = position.add(speed);
+ if (!accelerate && position.getY() <= size / 2) {
+ hitToGround = true;
+ position = new Point2D(position.getX(), size / 2);
+ }
+ } else {
+ reload();
+ }
+
+
+ }
+
+ public void reload() {
+ position = start;
+ speed = initialSpeed;
+ hitToGround = false;
+ accelerate = true;
+ }
+
+}
diff --git a/src/main/java/lab/Cannon.java b/src/main/java/lab/Cannon.java
new file mode 100644
index 0000000000000000000000000000000000000000..92c54310524127224b89db59c3b840b7709df328
--- /dev/null
+++ b/src/main/java/lab/Cannon.java
@@ -0,0 +1,49 @@
+package lab;
+
+import javafx.geometry.Point2D;
+import javafx.scene.canvas.GraphicsContext;
+import javafx.scene.paint.Color;
+import javafx.scene.transform.Affine;
+
+public class Cannon {
+
+ private int direction=-1;
+ private double angle = 0;
+ private Point2D position;
+ private Point2D size;
+ private World world;
+
+
+
+
+ public Cannon(World world, Point2D position, Point2D size) {
+ super();
+ this.world = world;
+ this.position = position;
+ this.size = size;
+ }
+
+ public void simulate(double timeStep) {
+ angle = angle + direction*0.8;
+ if(angle <=-90 || angle >= 0) {
+ direction*=-1;
+ }
+ }
+
+ public void draw(GraphicsContext gc) {
+ gc.save();
+ Point2D worldPosition = world.getCanvasPoint(position);
+ gc.setFill(Color.BROWN);
+ gc.fillRect(worldPosition.getX()-10, worldPosition.getY()+size.getY(), size.getX()+20, size.getY()/2);
+ gc.fillOval(worldPosition.getX()-20, worldPosition.getY()+size.getY()/2, 40, 40);
+ gc.fillOval(worldPosition.getX()+size.getX(), worldPosition.getY()+size.getY()/2, 40, 40);
+ gc.setTransform(new Affine(Affine.rotate(angle, worldPosition.getX(), worldPosition.getY()+size.getY()/2)));
+ gc.setFill(Color.BLACK);
+ gc.fillRect(worldPosition.getX(), worldPosition.getY(), size.getX(), size.getY());
+ gc.restore();
+ }
+
+ public double getAngle() {
+ return (angle * -1) / 180 * Math.PI;
+ }
+}
diff --git a/src/main/java/lab/Constants.java b/src/main/java/lab/Constants.java
new file mode 100644
index 0000000000000000000000000000000000000000..92fb710258e1390b1856d44c935ec7b428dafd3a
--- /dev/null
+++ b/src/main/java/lab/Constants.java
@@ -0,0 +1,19 @@
+package lab;
+
+import javafx.scene.image.Image;
+
+public final class Constants {
+ private Constants() {}
+
+ public static final double GRAVITATIONAL_ACCELERATION = 9.81;
+
+ public static final double AIR_DENSITY = 1.2;
+
+ static final int REFRESH_TIMEOUT = 25;
+
+ public static final Image DRAGON_IMAGE;
+
+ static{
+ DRAGON_IMAGE = new Image(Constants.class.getResourceAsStream("dragon.gif"));
+ }
+}
diff --git a/src/main/java/lab/Laboratory.java b/src/main/java/lab/Laboratory.java
new file mode 100644
index 0000000000000000000000000000000000000000..153a849dcee9aa4239c245f20a1115d8d0482ed6
--- /dev/null
+++ b/src/main/java/lab/Laboratory.java
@@ -0,0 +1,18 @@
+package lab;
+
+import javafx.scene.canvas.Canvas;
+import javafx.scene.canvas.GraphicsContext;
+
+public class Laboratory {
+
+ public void draw(Canvas canvas) {
+ GraphicsContext gc = canvas.getGraphicsContext2D();
+ World world = new World(canvas.getWidth(), canvas.getHeight());
+ while (!Routines.isEndOfThreadRequestedByJavaVM()) {
+ gc.clearRect(0, 0, canvas.getWidth(), canvas.getHeight());
+ world.draw(canvas);
+ Routines.sleep(25);
+ world.simulate(25);
+ }
+ }
+}
diff --git a/src/main/java/lab/Routines.java b/src/main/java/lab/Routines.java
index 89fcce7f1e20229e95fbdc50c69e2b0bb695f060..cfc1fc8b98187dce87ac262c34d087bbbc3d81a9 100644
--- a/src/main/java/lab/Routines.java
+++ b/src/main/java/lab/Routines.java
@@ -1,8 +1,8 @@
package lab;
-public class Routines {
+public final class Routines {
-
+ private Routines() { }
public static void sleep(int timeInMilisenonds) {
try {
diff --git a/src/main/java/lab/World.java b/src/main/java/lab/World.java
new file mode 100644
index 0000000000000000000000000000000000000000..a081a8e29466e4386790f35d429efddebd134fba
--- /dev/null
+++ b/src/main/java/lab/World.java
@@ -0,0 +1,53 @@
+package lab;
+
+import javafx.geometry.Point2D;
+import javafx.scene.canvas.Canvas;
+import javafx.scene.canvas.GraphicsContext;
+
+public class World {
+ private double width;
+ private double height;
+ private BulletAnimated bulletAnimatted;
+ private Cannon cannon;
+
+ public World(double width, double height) {
+ super();
+ this.width = width;
+ this.height = height;
+ cannon = new Cannon(this, new Point2D(50, 50), new Point2D(100, 20));
+ bulletAnimatted = new BulletAnimated(this, cannon, new Point2D(30, 60), new Point2D(0, 0), 40);
+ }
+
+ public Point2D getCanvasPoint(Point2D worldPoint) {
+ return new Point2D(worldPoint.getX(), height - worldPoint.getY());
+ }
+
+ public void draw(Canvas canvas) {
+ GraphicsContext gc = canvas.getGraphicsContext2D();
+ gc.clearRect(0, 0, canvas.getWidth(), canvas.getHeight());
+ cannon.draw(gc);
+ bulletAnimatted.draw(gc);
+ }
+
+ public void simulate(int timeDelta) {
+ bulletAnimatted.simulate(timeDelta);
+ cannon.simulate(timeDelta);
+ }
+
+ public double getWidth() {
+ return width;
+ }
+
+ public void setWidth(double width) {
+ this.width = width;
+ }
+
+ public double getHeight() {
+ return height;
+ }
+
+ public void setHeight(double height) {
+ this.height = height;
+ }
+
+}
diff --git a/src/main/resources/lab/dragon.gif b/src/main/resources/lab/dragon.gif
new file mode 100644
index 0000000000000000000000000000000000000000..aa36183f67ee4fbc6fa99b80076bdc7a7489a445
Binary files /dev/null and b/src/main/resources/lab/dragon.gif differ