Init der fehlenden Dateien

app/src/main/java/de/frajul/endlessroll/entities/Background.java

@@ -0,0 +1,56 @@
+package de.frajul.endlessroll.entities;
+
+import de.frajul.endlessroll.data.SynchronizedArrayList;
+import de.frajul.endlessroll.data.Vector;
+import de.frajul.endlessroll.entities.textures.Texture;
+
+/**
+ * Created by Julian on 20.07.2016.
+ */
+public class Background extends SynchronizedArrayList<Entity> {
+
+    private final float PART_WIDTH = 5;
+    private final float HALF_PART_WIDTH = PART_WIDTH / 2;
+    private final float HEIGHT = 2.5f;
+    private Texture texture;
+
+    public Background(Texture texture) {
+        this.texture = texture;
+        super.add(createPart(-HALF_PART_WIDTH));
+    }
+
+    public void changeTexture(Texture texture) {
+        this.texture = texture;
+        synchronized (this) {
+            for (Entity entity : this)
+                entity.setTexture(texture);
+        }
+    }
+
+    private Entity createPart(float xLeftEdge) {
+        return new Entity(texture, new Vector(xLeftEdge + HALF_PART_WIDTH, (HEIGHT - 2) / 2), PART_WIDTH, HEIGHT);
+    }
+
+    public void move(float x, float cameraX) {
+        Vector movement = new Vector(x, 0);
+        synchronized (this) {
+            for (Entity part : this)
+                part.move(movement);
+        }
+        if (!super.isEmpty()) {
+            Entity last = super.get(super.size() - 1);
+            if (last.getRightEdge() - cameraX < 3) {
+                super.add(createPart(last.getRightEdge() - 0.001f));
+            }
+            if (super.get(0).getRightEdge() - cameraX < -3) {
+                super.remove(0);
+            }
+        }
+    }
+
+    public void resetPosition() {
+        super.clear();
+        super.add(createPart(-HALF_PART_WIDTH));
+    }
+
+}