began work on collision detection and added first enemy

core/src/zero1hd/polyjet/entity/BoxOfEnemies.java

@@ -0,0 +1,45 @@
+package zero1hd.polyjet.entity;
+
+import com.badlogic.gdx.utils.Array;
+import com.badlogic.gdx.utils.Pool;
+import com.badlogic.gdx.utils.Pools;
+
+public class BoxOfEnemies {
+	private final Pool<VoidCircle> voidCirclePool = Pools.get(VoidCircle.class);
+	private final Array<Entity> ActiveEnemies;
+	
+	public BoxOfEnemies() {
+		ActiveEnemies = new Array<Entity>();
+	}
+	
+	public Entity getEntity(Entities entity) {
+		switch (entity) {
+		case VOID_CIRCLE:
+			VoidCircle voidCircle = voidCirclePool.obtain();
+			ActiveEnemies.add(voidCircle);
+			return voidCircle;
+		case BAR_BEAT:
+			return null;
+		case SHARDS:
+			return null;
+		default:
+			return null;
+		}
+	}
+	
+	public void free(Entity entity, Entities type) {
+		switch (type) {
+		case BAR_BEAT:
+			break;
+		case SHARDS:
+			break;
+		case VOID_CIRCLE:
+			ActiveEnemies.removeValue(entity, true);
+			voidCirclePool.free((VoidCircle) entity);
+			break;
+		default:
+			break;
+		
+		}
+	}
+}

core/src/zero1hd/polyjet/entity/CollisionDetector.java

@@ -0,0 +1,26 @@
+package zero1hd.polyjet.entity;
+
+import com.badlogic.gdx.utils.Array;
+
+public class CollisionDetector {
+	Array<Entity> firstGroup;
+	Array<Entity> secondGroup;
+	
+	public CollisionDetector(Array<Entity> firstGroup, Array<Entity> secondGroup) {
+		this.firstGroup = firstGroup;
+		this.secondGroup = secondGroup;
+	}
+	
+	public void collisionCheck() {
+		while (firstGroup.iterator().hasNext()) {
+			Entity firstEntity = firstGroup.iterator().next();
+			while (secondGroup.iterator().hasNext()) {
+				Entity secondEntity = secondGroup.iterator().next();
+				if (firstEntity.getHitZone().overlaps(secondEntity.getHitZone())) {
+					firstEntity.collided(secondEntity);
+					secondEntity.collided(firstEntity);
+				}
+			}
+		}
+	}
+}

core/src/zero1hd/polyjet/entity/Entities.java

@@ -1,7 +1,7 @@
 package zero1hd.polyjet.entity;
 
 public enum Entities {
-	BAR_BEAT, VOID_CIRCLE, SHARDS;
+	POLYJET, BAR_BEAT, VOID_CIRCLE, SHARDS;
 	
 	public float x;
 	public float y;

core/src/zero1hd/polyjet/entity/Entity.java

@@ -1,52 +1,23 @@
 package zero1hd.polyjet.entity;
 
 import com.badlogic.gdx.math.Rectangle;
-import com.badlogic.gdx.scenes.scene2d.Actor;
 
-public class Entity extends Actor {
+public interface Entity {
-	private Rectangle box;
+	/**
+	 * Called whenever a collision is detected
+	 * @param entity is the entity that hit this one.
+	 */
+	public void collided(Entity entity);
 	
-	public Entity() {
+	/**
-		box = new Rectangle();
+	 * gets the box that represents the hit box to calculate whether there is a collision or not
-	}
+	 * @return the object that represents the hit box
+	 */
+	public Rectangle getHitZone();
 	
-	@Override
+	/**
-	public void setHeight(float height) {
+	 * gets the type of entity this entity is
-		box.height = height;
+	 * @return the entity type
-		super.setHeight(height);
+	 */
-	}
+	public Entities getEntityType();
-	
-	@Override
-	public void setWidth(float width) {
-		box.width = width;
-		super.setWidth(width);
-	}
-	
-	@Override
-	public void setSize(float width, float height) {
-		box.setSize(width, height);
-		super.setSize(width, height);
-	}
-	
-	@Override
-	public void setX(float x) {
-		box.setX(x);
-		super.setX(x);
-	}
-	
-	@Override
-	public void setY(float y) {
-		box.setY(y);
-		super.setY(y);
-	}
-	
-	@Override
-	public void setPosition(float x, float y) {
-		box.setPosition(x, y);
-		super.setPosition(x, y);
-	}
-	
-	public Rectangle getBox() {
-		return box;
-	}
 }

core/src/zero1hd/polyjet/entity/PolyJetEntity.java

@@ -3,27 +3,27 @@ package zero1hd.polyjet.entity;
 import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.graphics.g2d.Batch;
 import com.badlogic.gdx.graphics.g2d.ParticleEffect;
+import com.badlogic.gdx.math.Rectangle;
 import com.badlogic.gdx.scenes.scene2d.Actor;
 import com.badlogic.gdx.scenes.scene2d.actions.Actions;
 
 import zero1hd.polyjet.Polyjet;
 
-public class PolyJetEntity extends Entity {
+public class PolyJetEntity extends Actor implements Entity {
 	
 	private ParticleEffect thrust;
 	private Texture polyjet;
 	private ParticleEffect teleportCloak;
-	
+	private Rectangle hitbox;
 	
 	public boolean moveLeft, moveRight, moveUp, moveDown, teleporting;
 	private float rate;
 	public PolyJetEntity(Polyjet core, float rate, String jet) {
 		this.rate = rate;
-		
 		setSize(1.5f, 1.5f);
-		
 		setPosition(Polyjet.GAME_AREA_WIDTH/2 - getWidth()/2, -4f);
 		
+		hitbox = new Rectangle(getX(), getY(), getWidth(), getHeight());
 		polyjet = core.getAssetManager().get("polyjet-" + jet + ".png", Texture.class);
 		thrust = core.getAssetManager().get("standard_thrust.p", ParticleEffect.class);
 		thrust.start();
@@ -35,11 +35,12 @@ public class PolyJetEntity extends Entity {
 	
 	@Override
 	public void act(float delta) {
+		hitbox.setPosition(getX(), getY());
+		
 		thrust.setPosition(getX()+(getWidth())/2 - 1f/16f, getY()-0.15f);
 		thrust.update(delta);
 		teleportCloak.setPosition(getX() +(getWidth()-1)/2, getY() + (getHeight()-1)/2);
 		
-		super.act(delta);
 		
 		//Movement!
 		if (moveLeft && !moveRight) {
@@ -56,6 +57,7 @@ public class PolyJetEntity extends Entity {
 			moveBy(0, -rate*delta);
 		}
 		
+		super.act(delta);
 	}
 	
 	@Override
@@ -64,4 +66,18 @@ public class PolyJetEntity extends Entity {
 		batch.draw(polyjet, getX(), getY(), getWidth(), getHeight());
 		super.draw(batch, parentAlpha);
 	}
+
+	@Override
+	public Rectangle getHitZone() {
+		return hitbox;
+	}
+
+	@Override
+	public Entities getEntityType() {
+		return Entities.POLYJET;
+	}
+
+	@Override
+	public void collided(Entity entity) {
+	}
 }

core/src/zero1hd/polyjet/entity/VoidCircle.java

@@ -0,0 +1,102 @@
+package zero1hd.polyjet.entity;
+
+import com.badlogic.gdx.graphics.Color;
+import com.badlogic.gdx.graphics.g2d.Batch;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer.ShapeType;
+import com.badlogic.gdx.math.Rectangle;
+import com.badlogic.gdx.scenes.scene2d.Actor;
+import com.badlogic.gdx.utils.Pool.Poolable;
+
+public class VoidCircle extends Actor implements Entity, Poolable {
+	float timer;
+	float endRadius;
+	private float currentRadius;
+	Rectangle hitBox;
+	ShapeRenderer shapeRenderer;
+	float growthRate;
+	boolean done;
+	
+	public VoidCircle(ShapeRenderer shapeRenderer) {
+		hitBox = new Rectangle();
+		this.shapeRenderer = shapeRenderer;
+	}
+	
+	public void init(float endRadius, float x, float y, float growthRate, float warningTime) {
+		timer = warningTime;
+		this.endRadius = endRadius;
+		setSize(2*endRadius, 2*endRadius);
+		setX(x);
+		setY(y);
+		this.growthRate = growthRate;
+	}
+	
+	@Override
+	public void act(float delta) {
+		hitBox.setPosition(getX(), getY());
+		if (timer > 0) {
+			timer -= delta;
+		} else {
+			if (currentRadius < endRadius) {
+				growCurrentRadius(delta*growthRate);
+			} else {
+				endRadius = -1f;
+				if (currentRadius > 0) {
+					growCurrentRadius(delta*-3*growthRate);
+				} else {
+					done = true;
+				}
+			}
+		}
+		super.act(delta);
+	}
+	
+	@Override
+	public void draw(Batch batch, float parentAlpha) {
+		if (timer <= 0) {
+			shapeRenderer.set(ShapeType.Filled);
+			shapeRenderer.setColor(Color.BLACK);
+			shapeRenderer.circle(getX(), getY(), currentRadius);
+		}
+		shapeRenderer.set(ShapeType.Line);
+		shapeRenderer.setColor(Color.RED);
+		shapeRenderer.circle(getX(), getY(), endRadius);
+		super.draw(batch, parentAlpha);
+	}
+	
+	@Override
+	public void reset() {
+		hitBox.set(0, 0, 0, 0);
+		currentRadius = 0;
+		growthRate = 0;
+		timer = 0;
+		endRadius = 0;
+		done = false;
+	}
+	
+	public void setCurrentRadius(float currentRadius) {
+		this.currentRadius = currentRadius;
+		hitBox.setSize(2*(currentRadius*currentRadius));
+		hitBox.setCenter(getX(), getY());
+	}
+	
+	public void growCurrentRadius(float currentRadius) {
+		this.currentRadius += currentRadius;
+		hitBox.setSize(2*(currentRadius*currentRadius));
+		hitBox.setCenter(getX(), getY());
+	}
+	
+	@Override
+	public Rectangle getHitZone() {
+		return hitBox;
+	}
+
+	@Override
+	public Entities getEntityType() {
+		return Entities.VOID_CIRCLE;
+	}
+
+	@Override
+	public void collided(Entity entity) {
+	}
+}

core/src/zero1hd/polyjet/screens/GameScreen.java

@@ -7,6 +7,7 @@ import com.badlogic.gdx.InputProcessor;
 import com.badlogic.gdx.ScreenAdapter;
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.GL20;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
 import com.badlogic.gdx.scenes.scene2d.Actor;
 import com.badlogic.gdx.scenes.scene2d.Stage;
 import com.badlogic.gdx.scenes.scene2d.ui.Image;
@@ -37,6 +38,8 @@ public class GameScreen extends ScreenAdapter implements InputProcessor {
 
 	private AudioData music;
 
+	private ShapeRenderer shapeRenderer;
+	
 	public GameScreen(Polyjet polyJet) {
 		core = polyJet;
 
@@ -87,7 +90,7 @@ public class GameScreen extends ScreenAdapter implements InputProcessor {
 
 					@Override
 					public void changed(ChangeEvent event, Actor actor) {
-						recommence();
+						restart();
 					}
 				});
 			}
@@ -120,13 +123,16 @@ public class GameScreen extends ScreenAdapter implements InputProcessor {
 		Gdx.gl.glClearColor(1f, 1f, 1f, 1f);
 		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
 		gameArea.getViewport().apply();
+		
+		shapeRenderer.begin();
 		gameArea.draw();
-
+		shapeRenderer.end();
+		
+		
 		overlay.getViewport().apply();
 		overlay.draw();
 		if (!paused) {
 			music.readIndexUpdate();
-			gameArea.setAudioIndex(music.getReadIndex());
 			scoreLabel.setText("Score: " + gameArea.getScore());
 			gameArea.act(delta);
 
@@ -135,12 +141,13 @@ public class GameScreen extends ScreenAdapter implements InputProcessor {
 			}
 
 			overlay.act(delta);
-		} else {
 		}
 
 		if (!music.getPlaybackMusic().isPlaying()) {
 			end(true);
 		}
+		
+		super.render(delta);
 	}
 
 	private void end(boolean trueEnd) {
@@ -179,7 +186,7 @@ public class GameScreen extends ScreenAdapter implements InputProcessor {
 		super.resume();
 	}
 
-	public void recommence() {
+	public void restart() {
 		paused = false;
 		pauseMenu.remove();
 		music.getPlaybackMusic().play();
@@ -207,7 +214,7 @@ public class GameScreen extends ScreenAdapter implements InputProcessor {
 
 		case Keys.ESCAPE:
 			if (paused) {
-				recommence();
+				restart();
 			} else {
 				pause();
 			}