3 files changed, 17 insertions, 0 deletions
diff --git a/core/src/ch/asynk/tankontank/engine/Layer.java b/core/src/ch/asynk/tankontank/engine/Layer.java
index 76f99c0..203c469 100644
--- a/core/src/ch/asynk/tankontank/engine/Layer.java
+++ b/core/src/ch/asynk/tankontank/engine/Layer.java
@@ -8,6 +8,7 @@ import com.badlogic.gdx.Gdx;
 import com.badlogic.gdx.graphics.Camera;
 import com.badlogic.gdx.graphics.g2d.Batch;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
 import com.badlogic.gdx.utils.viewport.Viewport;
 
 import ch.asynk.tankontank.engine.gfx.Node;
@@ -100,6 +101,15 @@ public class Layer
         }
     }
 
+    public void drawDebug(ShapeRenderer debugShapes)
+    {
+        debugShapes.setProjectionMatrix(viewport.getCamera().combined);
+        debugShapes.begin();
+        for (int i = 0, n = nodes.size(); i < n; i++)
+            nodes.get(i).drawDebug(debugShapes);
+        debugShapes.end();
+    }
+
     public void clear()
     {
         for (int i = 0, n = nodes.size(); i < n; i++)
diff --git a/core/src/ch/asynk/tankontank/engine/gfx/AbstractDrawable.java b/core/src/ch/asynk/tankontank/engine/gfx/AbstractDrawable.java
index 5d4705c..bfafb38 100644
--- a/core/src/ch/asynk/tankontank/engine/gfx/AbstractDrawable.java
+++ b/core/src/ch/asynk/tankontank/engine/gfx/AbstractDrawable.java
@@ -1,6 +1,7 @@
 package ch.asynk.tankontank.engine.gfx;
 
 import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
 
 public abstract class AbstractDrawable implements Drawable
 {
@@ -24,6 +25,9 @@ public abstract class AbstractDrawable implements Drawable
     }
 
     @Override
+    public void drawDebug(ShapeRenderer debugShapes) {}
+
+    @Override
     public float getWidth()
     {
         return w;
diff --git a/core/src/ch/asynk/tankontank/engine/gfx/Drawable.java b/core/src/ch/asynk/tankontank/engine/gfx/Drawable.java
index 8b700df..075c33d 100644
--- a/core/src/ch/asynk/tankontank/engine/gfx/Drawable.java
+++ b/core/src/ch/asynk/tankontank/engine/gfx/Drawable.java
@@ -1,6 +1,7 @@
 package ch.asynk.tankontank.engine.gfx;
 
 import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
 import com.badlogic.gdx.utils.Disposable;
 
 public interface Drawable extends Disposable
@@ -26,4 +27,6 @@ public interface Drawable extends Disposable
     public void setCoords(float x, float y, int r);
 
     public void draw(Batch batch, float parentAlpha);
+
+    public void drawDebug(ShapeRenderer debugShapes);
 }