merge branch 3dunstable

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

@@ -1,11 +1,35 @@
 package chess.view.DDDrender;
 
+import common.AssetManager;
+import common.Signal0;
+import org.joml.Vector2f;
 import org.lwjgl.*;
 import org.lwjgl.glfw.*;
 import org.lwjgl.opengl.*;
 import org.lwjgl.system.*;
 
+import chess.model.Coordinate;
+import chess.view.DDDrender.opengl.FrameBuffer;
+import chess.view.DDDrender.world.Entity;
+import chess.view.DDDrender.world.World;
+import common.Signal1;
+import imgui.ImFontConfig;
+import imgui.ImGui;
+import imgui.ImVec2;
+import imgui.flag.ImGuiWindowFlags;
+import imgui.gl3.ImGuiImplGl3;
+import imgui.glfw.ImGuiImplGlfw;
+import imgui.type.ImBoolean;
+import imgui.type.ImInt;
+
+import java.io.Closeable;
+import java.io.IOException;
 import java.nio.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Queue;
+import java.util.concurrent.ConcurrentLinkedDeque;
+import java.util.function.Consumer;
 
 import static org.lwjgl.glfw.Callbacks.*;
 import static org.lwjgl.glfw.GLFW.*;
@@ -13,21 +37,53 @@ import static org.lwjgl.opengl.GL11.*;
 import static org.lwjgl.system.MemoryStack.*;
 import static org.lwjgl.system.MemoryUtil.*;
 
-public class Window {
+public class Window implements Closeable {
 
 	// The window handle
 	private long window;
 
-	private Renderer renderer;
-	private Camera cam;
+	private final ImGuiImplGl3 implGl3 = new ImGuiImplGl3();
+	private final ImGuiImplGlfw implGlfw = new ImGuiImplGlfw();
 
-	public Window() {
+	private Renderer renderer;
+	private final Camera cam;
+	private final World world;
+
+	private final Queue<Runnable> tasks;
+	private final List<Consumer<Float>> regularTasks;
+
+	private Coordinate lastCell = null;
+
+	public final Signal1<Coordinate> OnCellClick = new Signal1<>();
+	public final Signal1<Coordinate> OnCellEnter = new Signal1<>();
+	public final Signal1<Coordinate> OnCellExit = new Signal1<>();
+
+	public final Signal0 OnImGuiTopRender = new Signal0();
+	public final Signal0 OnImGuiBottomRender = new Signal0();
+
+	private ImInt detailLevel = new ImInt(10);
+	private ImBoolean pixelatedFrame = new ImBoolean(true);
+
+	public Window(Renderer renderer, World world, Camera camera) {
 		this.renderer = new Renderer();
-		this.cam = new Camera();
+		this.cam = camera;
+		this.tasks = new ConcurrentLinkedDeque<>();
+		this.world = world;
+		this.regularTasks = new ArrayList<>();
 	}
 
-	public static void main(String[] args) {
-		new Window().run();
+	public void addRegularTask(Consumer<Float> task) {
+		this.regularTasks.add(task);
+	}
+
+	public void removeRegularTask(Consumer<Float> task) {this.regularTasks.remove(task);}
+
+	public synchronized void scheduleTask(Runnable runnable) {
+		this.tasks.add(runnable);
+	}
+
+	public synchronized Runnable getNextTask() {
+		return this.tasks.poll();
 	}
 
 	public void run() {
@@ -43,6 +99,28 @@ public class Window {
 		// Terminate GLFW and free the error callback
 		glfwTerminate();
 		glfwSetErrorCallback(null).free();
+
+		implGl3.shutdown();
+		implGlfw.shutdown();
+
+		ImGui.destroyContext();
+	}
+
+	private void initImGui() {
+		ImGui.setCurrentContext(ImGui.createContext());
+
+		implGl3.init("#version 330");
+		implGlfw.init(window, true);
+
+		ImFontConfig config = new ImFontConfig();
+		config.setFontDataOwnedByAtlas(false);
+		try {
+			ImGui.getIO().getFonts().addFontFromMemoryTTF(AssetManager.getResource("fonts/comic.ttf").readAllBytes(),
+					50.0f, config);
+		} catch (IOException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
 	}
 
 	private void init() {
@@ -80,10 +158,19 @@ public class Window {
 					window,
 					(vidmode.width() - pWidth.get(0)) / 2,
 					(vidmode.height() - pHeight.get(0)) / 2);
+
+			glfwSetWindowSize(window, vidmode.width(), vidmode.height());
+			
+			// Make the OpenGL context current
+			glfwMakeContextCurrent(window);
+			
+			GL.createCapabilities();
+			
+			initImGui();
+			
+			renderer.Init(vidmode.width(), vidmode.height());
 		} // the stack frame is popped automatically
 
-		// Make the OpenGL context current
-		glfwMakeContextCurrent(window);
 		// Enable v-sync
 		glfwSwapInterval(1);
 
@@ -91,32 +178,117 @@ public class Window {
 		glfwShowWindow(window);
 	}
 
-	private void render() {
-		cam.rotate(0.01f, 0.01f);
-		renderer.Render(cam);
+	private void render(float delta, float aspectRatio) {
+		final FrameBuffer frameBuffer = this.renderer.getFrameBuffer();
+
+		cam.setAspectRatio(frameBuffer.getAspectRatio());
+		frameBuffer.Bind();
+		frameBuffer.Clear();
+		renderer.Update(cam);
+		renderWorld();
+		frameBuffer.Unbind();
+	}
+
+	private void renderWorld() {
+		for (Entity entity : this.world.getEntites()) {
+			entity.render(this.renderer);
+		}
+	}
+
+	private void executeTasks(float delta) {
+		Runnable task = getNextTask();
+		while (task != null) {
+			task.run();
+			task = getNextTask();
+		}
+		for (Consumer<Float> consumer : regularTasks) {
+			consumer.accept(delta);
+		}
+	}
+
+	private void checkCursor(float cursorPosX, float cursorPosY, int windowWidth, int windowHeight) {
+		Vector2f cursorPos = this.cam.getCursorWorldFloorPos(new Vector2f(cursorPosX, cursorPosY), windowWidth,
+				windowHeight);
+		Coordinate selectedCell = DDDPlacement.vectorToCoordinates(cursorPos);
+		if (this.lastCell == null) {
+			this.lastCell = selectedCell;
+			if (selectedCell.isValid())
+				this.OnCellEnter.emit(selectedCell);
+		} else if (!this.lastCell.equals(selectedCell)) {
+			if (this.lastCell.isValid())
+				this.OnCellExit.emit(this.lastCell);
+			if (selectedCell.isValid())
+				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() {
+		glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the framebuffer
+
+		implGlfw.newFrame();
+		implGl3.newFrame();
+		ImGui.newFrame();
+	}
+
+	private void renderWindow() {
+		ImGui.showDemoWindow();
+
+		final FrameBuffer frameBuffer = this.renderer.getFrameBuffer();
+		final int frameWidth = (int) ImGui.getIO().getDisplaySizeX();
+		final int frameHeight = (int) (ImGui.getIO().getDisplaySizeY() * 8.0f / 10.0f);
+
+		ImGui.setNextWindowSize(ImGui.getIO().getDisplaySize());
+		ImGui.setNextWindowPos(new ImVec2());
+		ImGui.begin("Main Window", ImGuiWindowFlags.NoDecoration);
+		this.OnImGuiTopRender.emit();
+		ImVec2 mousePos = ImGui.getIO().getMousePos();
+		ImVec2 framePos = ImGui.getCursorScreenPos();
+		checkCursor(mousePos.x - framePos.x, frameHeight - (mousePos.y - framePos.y), frameWidth, frameHeight);
+		ImGui.image(frameBuffer.getRenderTexture(), new ImVec2(frameWidth, frameHeight));
+		this.OnImGuiBottomRender.emit();
+		if(ImGui.sliderInt("Niveau de détail", detailLevel.getData(), 1, 10)){
+			frameBuffer.Resize((int) ((float) frameWidth * detailLevel.get() / 10.0f), (int) ((float) frameHeight * detailLevel.get() / 10.0f));
+		}
+		if (ImGui.checkbox("Minecraft", pixelatedFrame)) {
+			frameBuffer.SetPixelScaling(pixelatedFrame.get());
+		}
+		ImGui.end();
 	}
 
 	private void loop() {
-		// This line is critical for LWJGL's interoperation with GLFW's
-		// OpenGL context, or any context that is managed externally.
-		// LWJGL detects the context that is current in the current thread,
-		// creates the GLCapabilities instance and makes the OpenGL
-		// bindings available for use.
-		GL.createCapabilities();
-
-		renderer.Init();
 
 		// Set the clear color
-		glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+		glClearColor(0.4f, 0.4f, 0.6f, 1.0f);
+
+		glEnable(GL_DEPTH_TEST);
+
+		glEnable(GL_CULL_FACE);
+		glCullFace(GL_FRONT);
+		glFrontFace(GL_CW);
 
 		glColor4f(1.0f, 0.0f, 0.0f, 1.0f);
 
+		int width[] = new int[1];
+		int height[] = new int[1];
+		glfwGetWindowSize(window, width, height);
+
 		// Run the rendering loop until the user has attempted to close
 		// the window or has pressed the ESCAPE key.
 		while (!glfwWindowShouldClose(window)) {
-			glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear the framebuffer
 
-			render();
+			newFrame();
+
+			render(ImGui.getIO().getDeltaTime(), (float) width[0] / (float) height[0]);
+
+			renderWindow();
+			ImGui.render();
+			implGl3.renderDrawData(ImGui.getDrawData());
 
 			glfwSwapBuffers(window); // swap the color buffers
 
@@ -124,16 +296,17 @@ public class Window {
 			// invoked during this call.
 			glfwPollEvents();
 
-			try (MemoryStack stack = stackPush()) {
-				IntBuffer pWidth = stack.mallocInt(1); // int*
-				IntBuffer pHeight = stack.mallocInt(1); // int*
+			executeTasks(ImGui.getIO().getDeltaTime());
 
-				// Get the window size passed to glfwCreateWindow
-				glfwGetWindowSize(window, pWidth, pHeight);
+			glfwGetWindowSize(window, width, height);
+			glViewport(0, 0, width[0], height[0]);
 
-				glViewport(0, 0, pWidth.get(), pHeight.get());
-			} // the stack frame is popped automatically
 		}
 	}
 
+	@Override
+	public void close() throws IOException {
+		this.renderer.close();
+	}
+
 }