optimize rendering

app/src/main/java/chess/view/DDDrender/Renderer.java

@@ -70,10 +70,10 @@ public class Renderer implements Closeable {
 		this.pieceShader.SetCamMatrix(cam);
 	}
 
-	public void Render(DDDModel model, Vector3f color, Vector3f position, float rotation) {
+	public void Render(DDDModel model, Vector3f color, Matrix4f transform) {
 		this.pieceShader.Start();
 		this.pieceShader.setModelColor(color);
-		this.pieceShader.setModelTransform(new Matrix4f().translate(position).rotate(rotation, new Vector3f(0, 1, 0)));
+		this.pieceShader.setModelTransform(transform);
 		Render(model);
 	}
 

app/src/main/java/chess/view/DDDrender/Window.java

@@ -93,15 +93,6 @@ public class Window implements Closeable {
 		ImGui.destroyContext();
 	}
 
-	private void setCallbacks() {
-		glfwSetMouseButtonCallback(this.window, (window, button, action, mods) -> {
-			if (button == GLFW_MOUSE_BUTTON_1 && action == GLFW_PRESS) {
-				if (this.lastCell.isValid())
-					this.OnCellClick.emit(this.lastCell);
-			}
-		});
-	}
-
 	private void initImGui() {
 		ImGui.setCurrentContext(ImGui.createContext());
 
@@ -163,8 +154,6 @@ public class Window implements Closeable {
 
 		GL.createCapabilities();
 
-		setCallbacks();
-
 		initImGui();
 
 		renderer.Init();
@@ -218,6 +207,11 @@ public class Window implements Closeable {
 				this.OnCellEnter.emit(selectedCell);
 			this.lastCell = selectedCell;
 		}
+
+		if (ImGui.getIO().getMouseClicked(0)) {
+			if (this.lastCell != null && this.lastCell.isValid())
+				this.OnCellClick.emit(this.lastCell);
+		}
 	}
 
 	private void newFrame() {
@@ -229,10 +223,10 @@ public class Window implements Closeable {
 	}
 
 	private void renderWindow() {
-		// ImGui.showDemoWindow();
+		ImGui.showDemoWindow();
 
 		ImGui.begin("Hello");
-		ImGui.button("test");
+		ImGui.text("FPS : " + ImGui.getIO().getFramerate());
 		ImVec2 mousePos = ImGui.getIO().getMousePos();
 		ImVec2 framePos = ImGui.getCursorScreenPos();
 		checkCursor(mousePos.x - framePos.x, 800 - (mousePos.y - framePos.y), 800, 800);

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

@@ -2,6 +2,7 @@ package chess.view.DDDrender.world;
 
 import java.io.IOException;
 
+import org.joml.Matrix4f;
 import org.joml.Vector3f;
 
 import chess.model.Coordinate;
@@ -45,4 +46,9 @@ public class BoardEntity extends Entity {
 		vao.close();
 	}
 
+	@Override
+	public Matrix4f getTransform() {
+		return null;
+	}
+
 }

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

@@ -2,10 +2,14 @@ package chess.view.DDDrender.world;
 
 import java.io.Closeable;
 
+import org.joml.Matrix4f;
+
 import chess.view.DDDrender.Renderer;
 
 public abstract class Entity implements Closeable{
 
 	public abstract void render(Renderer renderer);
 
+	public abstract Matrix4f getTransform();
+
 }

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

@@ -2,6 +2,7 @@ package chess.view.DDDrender.world;
 
 import java.io.IOException;
 
+import org.joml.Matrix4f;
 import org.joml.Vector3f;
 
 import chess.view.DDDrender.DDDModel;
@@ -14,20 +15,24 @@ public class ModelEntity extends Entity {
 	protected float rotation;
 	protected DDDModel model;
 
+	private Matrix4f transform;
+
 	public ModelEntity(DDDModel model, Vector3f position, Vector3f color, float rotation) {
 		this.position = position;
 		this.color = color;
 		this.rotation = rotation;
 		this.model = model;
+		updateTransform();
 	}
 
 	@Override
 	public void render(Renderer renderer) {
-		renderer.Render(model, color, position, rotation);
+		renderer.Render(model, color, transform);
 	}
 
 	public void setPosition(Vector3f position) {
 		this.position = position;
+		updateTransform();
 	}
 
 	public void setColor(Vector3f color) {
@@ -36,6 +41,7 @@ public class ModelEntity extends Entity {
 
 	public void setRotation(float rotation) {
 		this.rotation = rotation;
+		updateTransform();
 	}
 
 	@Override
@@ -43,4 +49,13 @@ public class ModelEntity extends Entity {
 		this.model.close();
 	}
 
+	private void updateTransform() {
+		this.transform = new Matrix4f().translate(this.position).rotate(this.rotation, new Vector3f(0, 1, 0));
+	}
+
+	@Override
+	public Matrix4f getTransform() {
+		return transform;
+	}
+
 }