add 3d position cache

app/src/main/java/chess/view/DDDrender/world/ModelEntity.java

@@ -0,0 +1,39 @@
+package chess.view.DDDrender.world;
+
+import org.joml.Vector3f;
+
+import chess.view.DDDrender.DDDModel;
+import chess.view.DDDrender.Renderer;
+
+public class ModelEntity extends Entity {
+
+	protected Vector3f position;
+	protected Vector3f color;
+	protected float rotation;
+	protected DDDModel model;
+
+	public ModelEntity(DDDModel model, Vector3f position, Vector3f color, float rotation) {
+		this.position = position;
+		this.color = color;
+		this.rotation = rotation;
+		this.model = model;
+	}
+
+	@Override
+	public void render(Renderer renderer) {
+		renderer.Render(model, color, position, rotation);
+	}
+
+	public void setPosition(Vector3f position) {
+		this.position = position;
+	}
+
+	public void setColor(Vector3f color) {
+		this.color = color;
+	}
+
+	public void setRotation(float rotation) {
+		this.rotation = rotation;
+	}
+
+}

app/src/main/java/chess/view/DDDrender/world/PieceEntity.java

@@ -5,51 +5,21 @@ import java.io.IOException;
 import org.joml.Vector3f;
 
 import chess.model.Piece;
-import chess.view.DDDrender.DDDModel;
-import chess.view.DDDrender.Renderer;
 import chess.view.DDDrender.loader.Piece3DModel;
 
-public class PieceEntity extends Entity {
+public class PieceEntity extends ModelEntity {
 
 	private static final Piece3DModel modelLoader = new Piece3DModel();
 
 	private final Piece piece;
-	private Vector3f position;
-	private Vector3f color;
-	private float rotation;
-	private DDDModel model;
 
-	public PieceEntity(Piece piece, Vector3f position, Vector3f color, float rotation) {
+	public PieceEntity(Piece piece, Vector3f position, Vector3f color, float rotation) throws IOException {
+		super(modelLoader.getModel(piece), position, color, rotation);
 		this.piece = piece;
-		this.position = position;
-		this.color = color;
-		this.rotation = rotation;
-		try {
-			this.model = modelLoader.getModel(piece);
-		} catch (IOException e) {
-			e.printStackTrace();
-		}
 	}
 
 	public Piece getPiece() {
 		return piece;
 	}
-
-	@Override
-	public void render(Renderer renderer) {
-		renderer.Render(model, color, position, rotation);
-	}
-
-	public void setPosition(Vector3f position) {
-		this.position = position;
-	}
-
-	public void setColor(Vector3f color) {
-		this.color = color;
-	}
-
-	public void setRotation(float rotation) {
-		this.rotation = rotation;
-	}
 	
 }

app/src/main/java/chess/view/DDDrender/world/World.java

@@ -3,16 +3,19 @@ package chess.view.DDDrender.world;
 import java.util.ArrayList;
 import java.util.List;
 
+import chess.model.Coordinate;
 import chess.model.Piece;
-import chess.view.DDDrender.Camera;
 
 public class World {
-	private final Camera camera;
+	/** Renderable entity list */
 	private final List<Entity> entites;
 
-	public World(Camera camera) {
-		this.camera = camera;
+	/** provides fast access to 3d pieces */
+	private final PieceEntity[] pieces;
+
+	public World() {
 		this.entites = new ArrayList<>();
+		this.pieces = new PieceEntity[Coordinate.VALUE_MAX * Coordinate.VALUE_MAX];
 	}
 
 	public PieceEntity getEntity(Piece piece) {
@@ -25,12 +28,21 @@ public class World {
 		return null;
 	}
 
-	public void addEntity(Entity entity) {
-		this.entites.add(entity);
+	public void addPiece(PieceEntity entity, Coordinate coordinate) {
+		addEntity(entity);
+		movePiece(entity, coordinate);
+	}
+	
+	public void movePiece(PieceEntity entity, Coordinate coordinate) {
+		pieces[coordinate.toIndex()] = entity;
 	}
 
-	public Camera getCamera() {
-		return camera;
+	public PieceEntity getPiece(Coordinate coordinate) {
+		return pieces[coordinate.toIndex()];
+	}
+
+	public void addEntity(Entity entity) {
+		this.entites.add(entity);
 	}
 
 	public List<Entity> getEntites() {