Added debug rendering. Toggle with F2.

core/src/com/saltosion/gladiator/input/IRDebugToggle.java

@@ -0,0 +1,26 @@
+package com.saltosion.gladiator.input;
+
+import com.saltosion.gladiator.systems.RenderingSystem;
+import com.saltosion.gladiator.util.AppUtil;
+
+/**
+ *
+ * @author Jens "Jeasonfire" Pitkänen <jeasonfire@gmail.com>
+ */
+public class IRDebugToggle implements InputReceiver {
+
+	@Override
+	public boolean pressed() {
+		RenderingSystem renderingSystem = AppUtil.engine.getSystem(RenderingSystem.class);
+		if (renderingSystem != null) {
+			renderingSystem.setDebug(!renderingSystem.getDebug());
+		}
+		return true;
+	}
+
+	@Override
+	public boolean released() {
+		return false;
+	}
+
+}

core/src/com/saltosion/gladiator/input/InputHandler.java

@@ -18,6 +18,7 @@ public class InputHandler implements InputProcessor {
 		keys.put(Keys.RIGHT, Name.SWING_RIGHT);
 		keys.put(Keys.UP, Name.SWING_UP);
 		keys.put(Keys.DOWN, Name.SWING_DOWN);
+		keys.put(Keys.F2, Name.DEBUG);
 	}
 
 	@Override

core/src/com/saltosion/gladiator/input/InputReceiver.java

@@ -1,6 +1,15 @@
 package com.saltosion.gladiator.input;
 
 public interface InputReceiver {
+
+	/**
+	 * @return Returns if the keypress was handled.
+	 */
 	public boolean pressed();
+
+	/**
+	 * @return Returns if the key's release was handled.
+	 */
 	public boolean released();
+
 }

core/src/com/saltosion/gladiator/input/InputReceivers.java

@@ -6,7 +6,8 @@ import com.saltosion.gladiator.util.Direction;
 import com.saltosion.gladiator.util.Name;
 
 public class InputReceivers {
-	public static HashMap<String, InputReceiver> inputreceivers = new HashMap<String, InputReceiver>();
+
+	public static final HashMap<String, InputReceiver> inputreceivers = new HashMap<String, InputReceiver>();
 
 	static {
 		inputreceivers.put(Name.MOVE_LEFT, new IRMoveLeft());
@@ -16,6 +17,7 @@ public class InputReceivers {
 		inputreceivers.put(Name.SWING_RIGHT, new IRSwing(Direction.RIGHT));
 		inputreceivers.put(Name.SWING_UP, new IRSwing(Direction.UP));
 		inputreceivers.put(Name.SWING_DOWN, new IRSwing(Direction.DOWN));
+		inputreceivers.put(Name.DEBUG, new IRDebugToggle());
 	}
 
 	public static InputReceiver getReceiver(String key) {

core/src/com/saltosion/gladiator/systems/RenderingSystem.java

@@ -7,10 +7,13 @@ import com.badlogic.ashley.core.EntitySystem;
 import com.badlogic.ashley.core.Family;
 import com.badlogic.ashley.utils.ImmutableArray;
 import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.GL20;
 import com.badlogic.gdx.graphics.OrthographicCamera;
 import com.badlogic.gdx.graphics.g2d.Sprite;
 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
 import com.saltosion.gladiator.components.CPhysics;
 import com.saltosion.gladiator.components.CRenderedObject;
 import com.saltosion.gladiator.util.AppUtil;
@@ -18,19 +21,24 @@ import com.saltosion.gladiator.util.SpriteSequence;
 
 public class RenderingSystem extends EntitySystem {
 
-	private ComponentMapper<CRenderedObject> rom = ComponentMapper.getFor(CRenderedObject.class);
-	private ComponentMapper<CPhysics> pm = ComponentMapper.getFor(CPhysics.class);
+	private final ComponentMapper<CRenderedObject> rom = ComponentMapper.getFor(CRenderedObject.class);
+	private final ComponentMapper<CPhysics> pm = ComponentMapper.getFor(CPhysics.class);
 	private ImmutableArray<Entity> entities;
 
 	private SpriteBatch batch;
+	private ShapeRenderer debugRenderer;
 	private OrthographicCamera camera;
 
+	private boolean debug = true;
+	private final Color debugColor = new Color(0, 1, 0, 1);
+
 	@Override
 	public void addedToEngine(Engine engine) {
 
 		updateEntities(engine);
 
 		batch = new SpriteBatch();
+		debugRenderer = new ShapeRenderer();
 		camera = new OrthographicCamera();
 		camera.setToOrtho(false, 1, 1);
 	}
@@ -68,10 +76,37 @@ public class RenderingSystem extends EntitySystem {
 			renderedObject.setCurrentFrame(nextFrame % currSequence.frameCount());
 		}
 		batch.end();
+
+		if (debug) {
+			debugRenderer.setProjectionMatrix(camera.combined);
+			debugRenderer.begin(ShapeType.Line);
+			debugRenderer.setColor(debugColor);
+			for (int i = 0; i < entities.size(); i++) {
+				CPhysics physics = pm.get(entities.get(i));
+				float x0 = physics.getPosition().x - physics.getSize().x / 2;
+				float x1 = physics.getPosition().x + physics.getSize().x / 2;
+				float y0 = physics.getPosition().y - physics.getSize().y / 2;
+				float y1 = physics.getPosition().y + physics.getSize().y / 2;
+
+				debugRenderer.line(x0, y0, x1, y0);
+				debugRenderer.line(x1, y0, x1, y1);
+				debugRenderer.line(x1, y1, x0, y1);
+				debugRenderer.line(x0, y1, x0, y0);
+			}
+			debugRenderer.end();
+		}
 	}
 
 	public void updateEntities(Engine engine) {
 		entities = engine.getEntitiesFor(Family.getFor(CRenderedObject.class, CPhysics.class));
 	}
 
+	public boolean getDebug() {
+		return this.debug;
+	}
+
+	public void setDebug(boolean debug) {
+		this.debug = debug;
+	}
+
 }

core/src/com/saltosion/gladiator/util/Name.java

@@ -4,6 +4,8 @@ public class Name {
 
 	public static final String GAME_NAME = "Gladiator Brawl";
 
+	public static final String DEBUG = "DEBUG";
+
 	public static final String STATICPLAYER = "STATICPLAYER";
 	public static final String PLAYERIMG = "PLAYERIMG";
 	public static final String GROUNDIMG = "GROUNDIMG";