change BoardRenderer name to GameRenderer

src/graphics/GameRenderer.cpp

@@ -0,0 +1,73 @@
+#include "BoardRenderer.h"
+
+Renderer::Renderer(int WIDTH, int HEIGHT) : m_Width(WIDTH), m_Height(HEIGHT) {
+    m_cellSize = HEIGHT / m_boardRow;
+}
+
+
+
+Renderer::~Renderer() {
+    
+}
+
+bool Renderer::initialize() { 
+    
+}
+
+
+
+
+void Renderer::render() {
+  
+    
+    drawBoard();
+
+   
+
+
+}
+
+
+void Renderer::drawBoard() {
+    auto area = getBoardArea();
+    
+
+// 绘制棋盘格子（交替颜色）
+for (int row = 0; row < area.rows; ++row) {
+    for (int col = 0; col < area.cols; ++col) {
+        // 使用 SDL_FRect（浮点数）
+        SDL_FRect rect{
+            static_cast<float>(area.x + col * area.cellSize),
+            static_cast<float>(area.y + row * area.cellSize),
+            static_cast<float>(area.cellSize),
+            static_cast<float>(area.cellSize)
+        };
+
+        bool isLight = (row + col) % 2 == 0;
+        SDL_SetRenderDrawColor(m_renderer, 
+            isLight ? 240 : 180,
+            isLight ? 220 : 160,
+            isLight ? 180 : 120,
+            255);
+
+        // SDL3: RenderFillRect 接受 const SDL_FRect*
+        SDL_RenderFillRect(m_renderer, &rect);
+    }
+}
+
+
+}
+
+ui::BoardArea Renderer::getBoardArea() const {
+    return {
+        (m_Width - m_cellSize * m_boardCOL) / 2,
+        (m_Height - m_cellSize * m_boardRow) / 2,
+        m_cellSize,
+        m_boardRow,
+        m_boardCOL
+    };
+}
+
+SDL_Renderer* Renderer::getSDLRenderer() const {
+    return m_renderer;
+}