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src/de/teamteamteam/spacescooter/Main.java

@@ -2,6 +2,7 @@ package de.teamteamteam.spacescooter;
 
 import java.awt.EventQueue;
 
+import de.teamteamteam.spacescooter.background.StarBackground;
 import de.teamteamteam.spacescooter.entities.Player;
 import de.teamteamteam.spacescooter.entities.TestEntity;
 import de.teamteamteam.spacescooter.gui.GameFrame;
@@ -23,14 +24,14 @@ public class Main {
 		final GameFrame gf = new GameFrame();
 		
 		//Whatever.
-		new TestEntity();
+		new StarBackground();
 		new Player();
 		
 		//Initialize the GameFrame properly within the AWT EventQueue
 		EventQueue.invokeLater(new Runnable() {
 			public void run() {
 				gf.init();
-				gf.drawEntities(); //Draw nothing for the first time.
+				gf.draw(); //Draw nothing for the first time.
 			}
 		});
 		

src/de/teamteamteam/spacescooter/background/Background.java

@@ -0,0 +1,29 @@
+package de.teamteamteam.spacescooter.background;
+
+import java.awt.Graphics;
+import java.util.ArrayList;
+
+public abstract class Background {
+
+	public static ArrayList<Background> backgrounds = null;
+	
+	/**
+	 * We need to initialize the ArrayList, so the EntityUpdateThread won't beat us.
+	 */
+	static {
+		Background.backgrounds = new ArrayList<Background>();
+	}
+	
+	public Background() {
+		Background.backgrounds.add(this);
+	}
+	
+	public void paint(Graphics g) {
+		
+	}
+	
+	public void update() {
+		//scroll shit
+	}
+	
+}

src/de/teamteamteam/spacescooter/background/StarBackground.java

@@ -0,0 +1,38 @@
+package de.teamteamteam.spacescooter.background;
+
+import java.awt.Graphics;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+
+import javax.imageio.ImageIO;
+
+import de.teamteamteam.spacescooter.entities.Player;
+
+
+public class StarBackground extends Background {
+
+	private static BufferedImage img;
+	static {
+		try {
+			img = ImageIO.read(Player.class.getClassLoader().getResourceAsStream("images/starbackground.png"));
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+	private int offset = 0;
+	
+	public void update() {
+		this.offset -= 15;
+		if(Math.abs(this.offset) > this.img.getWidth()) {
+			this.offset += this.img.getWidth();
+		}
+	}
+	
+	public void paint(Graphics g) {
+		g.drawImage(this.img, 0+this.offset, 0, this.img.getWidth(), this.img.getHeight(), null);
+		g.drawImage(this.img, this.img.getWidth()+this.offset, 0, this.img.getWidth(), this.img.getHeight(), null);
+	}
+	
+}

src/de/teamteamteam/spacescooter/entities/Entity.java

@@ -1,6 +1,8 @@
 package de.teamteamteam.spacescooter.entities;
 
 import java.awt.Graphics;
+import java.awt.Rectangle;
+import java.awt.Shape;
 import java.util.ArrayList;
 
 public abstract class Entity {
@@ -14,16 +16,27 @@ public abstract class Entity {
 		Entity.entities = new ArrayList<Entity>();
 	}
 
+	/**
+	 * Default hitbox for every entity
+	 */
+	protected Shape HitBox;
+	
 	/**
 	 * Constructor.
 	 * All entities are within a static array list for our convenience.
 	 */
 	public Entity() {
 		Entity.entities.add(this);
+		
+		//
 	}
 	
-	public abstract void update();
+	public void update() {
+		
+	}
 
-	public abstract void paint(Graphics g);
+	public void paint(Graphics g) {
+		
+	}
 	
 }

src/de/teamteamteam/spacescooter/entities/Player.java

@@ -33,17 +33,18 @@ public class Player extends Entity {
 	
 	@Override
 	public void update() {
+		int off = 3;
 		if(Keyboard.isKeyDown(KeyEvent.VK_UP)) {
-			this.y -= 3;
+			this.y -= off;
 		}
 		if(Keyboard.isKeyDown(KeyEvent.VK_DOWN)) {
-			this.y += 3;
+			this.y += off;
 		}
 		if(Keyboard.isKeyDown(KeyEvent.VK_LEFT)) {
-			this.x -= 3;
+			this.x -= off;
 		}
 		if(Keyboard.isKeyDown(KeyEvent.VK_RIGHT)) {
-			this.x += 3;
+			this.x += off;
 		}
 
 	}

src/de/teamteamteam/spacescooter/gui/GameFrame.java

@@ -7,6 +7,7 @@ import java.util.Iterator;
 
 import javax.swing.JFrame;
 
+import de.teamteamteam.spacescooter.background.Background;
 import de.teamteamteam.spacescooter.controls.Keyboard;
 import de.teamteamteam.spacescooter.entities.Entity;
 
@@ -41,7 +42,7 @@ public class GameFrame extends JFrame {
 	 * The pain, do not underestimate it!
 	 * @see http://content.gpwiki.org/index.php/Java:Tutorials:Double_Buffering for details.
 	 */
-	public void drawEntities() {
+	public void draw() {
 		this.createBufferStrategy(2);
 		Graphics bufferedGraphics = null;
 		BufferStrategy bufferStrategy = this.getBufferStrategy();
@@ -52,12 +53,9 @@ public class GameFrame extends JFrame {
 					bufferedGraphics = bufferStrategy.getDrawGraphics();
 
 					// Now we can use bufferedGraphics to actually draw stuff
-					// ...
+					this.drawBackgrounds(bufferedGraphics);
-					Iterator<Entity> i = Entity.entities.iterator();
+					this.drawEntities(bufferedGraphics);
-					while (i.hasNext()) {
+
-						Entity e = i.next();
-						e.paint(bufferedGraphics);
-					}
 				} catch(Exception e) {
 					System.out.println("Hier geht was schief");
 					System.out.println(e);
@@ -73,4 +71,22 @@ public class GameFrame extends JFrame {
 
 	}
 
+	public void drawBackgrounds(Graphics g) {
+		Iterator<Background> i = Background.backgrounds.iterator();
+		while (i.hasNext()) {
+			Background b = i.next();
+			b.paint(g);
+		}
+	}
+	
+	public void drawEntities(Graphics g) {
+		Iterator<Entity> i = Entity.entities.iterator();
+		while (i.hasNext()) {
+			Entity e = i.next();
+			e.paint(g);
+		}
+	}
+	
+
+	
 }

src/de/teamteamteam/spacescooter/threads/EntityUpdateThread.java

@@ -2,6 +2,7 @@ package de.teamteamteam.spacescooter.threads;
 
 import java.util.Iterator;
 
+import de.teamteamteam.spacescooter.background.Background;
 import de.teamteamteam.spacescooter.entities.Entity;
 import de.teamteamteam.spacescooter.gui.GameFrame;
 
@@ -24,10 +25,19 @@ public class EntityUpdateThread extends Thread {
 			} catch (InterruptedException e) {
 				System.err.println(e);
 			}
+			this.updateBackgrounds();
 			this.updateEntities();
 		}
 	}
 	
+	private void updateBackgrounds() {
+		Iterator<Background> i = Background.backgrounds.iterator();
+		while(i.hasNext()) {
+			Background b = i.next();
+			b.update();
+		}
+	}
+	
 	private void updateEntities() {
 		Iterator<Entity> i = Entity.entities.iterator();
 		while(i.hasNext()) {

src/de/teamteamteam/spacescooter/threads/PaintThread.java

@@ -26,7 +26,7 @@ public class PaintThread extends Thread {
 			//Trigger redrawing the things. Important: AWT-Context needed here!
 			EventQueue.invokeLater(new Runnable() {
 				public void run() {
-					gf.drawEntities();
+					gf.draw();
 				}
 			});
 		}