Changed Scene, so that it is no list anymore - all entities are contained specialized lists --> Tools can be rendered over obstacles and Collectables can be hidden

app/src/main/java/de/frajul/endlessroll/entities/collectables/Collectables.java

@@ -0,0 +1,67 @@
+package de.frajul.endlessroll.entities.collectables;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import de.frajul.endlessroll.data.SynchronizedArrayList;
+import de.frajul.endlessroll.entities.Entity;
+import de.frajul.endlessroll.entities.textures.TexturePack;
+import de.frajul.endlessroll.levels.Level;
+import de.frajul.endlessroll.levels.PositionData;
+
+/**
+ * Created by Julian on 06.09.2017.
+ */
+
+public class Collectables extends SynchronizedArrayList<Entity> {
+
+    private List<Star> stars = Collections.synchronizedList(new ArrayList<Star>());
+    private Energy energy;
+
+    public void init(Level level, TexturePack textures) {
+        for (int i = 0; i < level.getStars().size(); i++) {
+            if (level.isStarCollected(i))
+                continue;
+            addStar(new Star(i, textures.star, level.getStars().get(i)));
+        }
+
+        PositionData energyData = level.getEnergyData();
+        if (energyData != null && !level.isEnergyCollected()) {
+            setEnergy(new Energy(textures.energy, energyData));
+        }
+    }
+
+    @Override
+    public synchronized boolean remove(Object object) {
+        if(object instanceof Star)
+            stars.remove(object);
+        else
+            energy = null;
+        return super.remove(object);
+    }
+
+    private void addStar(Star star) {
+        stars.add(star);
+        super.add(star);
+    }
+
+    private void setEnergy(Energy energy) {
+        this.energy = energy;
+        super.add(energy);
+    }
+
+    public void reset() {
+        stars.clear();
+        energy = null;
+        super.clear();
+    }
+
+    public List<Star> getStars() {
+        return stars;
+    }
+
+    public Energy getEnergy() {
+        return energy;
+    }
+}

app/src/main/java/de/frajul/endlessroll/main/game/TestScreenScene.java

@@ -31,7 +31,4 @@ public class TestScreenScene extends Scene {
         return new Obstacle(World.GRASSLANDS, data, -.8f);
     }
 
-    @Override
-    protected void removeEntityFromAllLists(Entity entity) {
-    }
 }