Changes

Renderer.h

@@ -4,7 +4,10 @@
 
 #pragma once
 
+#include <thread>
+
 #include "def.h"
+#include "exception.h"
 
 class Game;
 /**
@@ -22,18 +25,50 @@ interface ITickable {
 	virtual void tick() noexcept = 0;
 };
 
-class Renderer : public ITickable {
+struct Color {
+	unsigned int inactive = 0xff777777;
+	unsigned int active = 0xff000000;
+	unsigned int hover = 0xff444444;
+	unsigned int clicked = 0xffeeeeee;
+};
+
+inline static constexpr Color TextColor = {
+	.inactive = 0xff333333,
+	.active = 0xffeeeeee,
+	.hover = 0xffeeeeee,
+	.clicked = 0xff000000
+};
+
+class Renderer final : public ITickable {
 	/**
 	 * 后续可能用不到，可能可删
 	 */
 	Game* pGame = nullptr;
+
+	friend class Game;
 	inline static HDC MainDC;
+	inline static HDC assistDC;
+	inline static BLENDFUNCTION blendFunction = {
+		.BlendOp = AC_SRC_OVER,// Only
+		.BlendFlags = 0,// Must 0
+		.SourceConstantAlpha = 255,// 预乘
+		.AlphaFormat = AC_SRC_ALPHA,// Only
+	};
+	std::thread::id renderThread = std::this_thread::get_id();
 	int windowWidth = 0, windowHeight = 0;
 	int resizeTime = 0;
+	bool isRendering = false;
+
+	void gameStartRender() noexcept {
+		isRendering = true;
+		renderThread = std::this_thread::get_id();
+	}
+
+	void gameEndRender() noexcept { isRendering = false; }
 
 public:
 	static void initialize() noexcept;
-	explicit Renderer() = default;
+	explicit Renderer() { Logger.put(L"Renderer created"); }
 	void resize(int width, int height) noexcept(false);
 	void setGame(Game& game) noexcept { pGame = &game; }
 	[[nodiscard]] int getWidth() const noexcept { return windowWidth; }
@@ -47,6 +82,36 @@ public:
 			resizeTime = -1;
 		}
 	}
+
+	/**
+	 * @attention 会忽略A透明度值
+	 * @param argb ARGB式颜色
+	 * @return int BGR式颜色
+	 */
+	[[nodiscard]] static unsigned int changeColorFormat(const unsigned int argb) { return (argb & 0xff) << 16 | (argb & 0xff00) | (argb & 0xff0000) >> 16; }
+
+	void assertRendering() const noexcept(false) { if (!isRendering) throw InvalidOperationException(L"Operation should be done while rendering"); }
+
+	void assertRenderThread() const noexcept(false) { if (std::this_thread::get_id() != renderThread) throw InvalidOperationException(L"Operation should be done in render thread"); }
+
+	void fill(const int x, const int y, const int w, const int h, const unsigned int color) const {
+		assertRendering();
+		//assertRenderThread();
+		if (color & 0xff000000 == 0) return;
+		const RECT rect{
+			.left = x,
+			.top = y,
+			.right = x + w,
+			.bottom = y + h
+		};
+		HBRUSH clr = CreateSolidBrush(changeColorFormat(color));
+		if ((color & 0xff000000) == 0xff000000) FillRect(MainDC, &rect, clr);
+		else {
+			FillRect(assistDC, &rect, clr);
+			AlphaBlend(MainDC, x, y, w, h, assistDC, x, y, w, h, blendFunction);
+		}
+		DeleteObject(clr);
+	}
 };
 
-inline static Renderer renderer = Renderer();
+extern Renderer renderer;