Rename GameRenderer to BoardRenderer

src/graphics/game/BoardRenderer.cpp

@@ -0,0 +1,111 @@
+#include "BoardRenderer.h"
+#include "game/Board.h"
+#include <iostream>
+BoardRenderer::BoardRenderer(int WIDTH, int HEIGHT, SDL_Renderer* renderer) : m_Width(WIDTH), m_Height(HEIGHT), m_renderer(renderer) {
+    m_cellSize = HEIGHT / m_boardRow;
+}
+
+
+
+BoardRenderer::~BoardRenderer() {
+    
+}
+
+bool BoardRenderer::initialize() { 
+    return true;
+}
+
+
+
+void BoardRenderer::setBoard(const Board* board) {
+    m_board = board;
+}
+
+void BoardRenderer::drawBackground() {
+
+}
+
+
+void BoardRenderer::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, 
+            0,
+            0,
+            0,
+            255);
+
+        // SDL3: RenderFillRect 接受 const SDL_FRect*
+        SDL_RenderRect(m_renderer, &rect);
+    }
+}
+
+
+}
+
+void BoardRenderer::drawPiece(std::optional<std::pair<int, int>> selectedPiece) {
+    if (!m_board || !m_renderer) return;
+
+    auto area = getBoardArea();
+    float pieceRadius = m_cellSize * m_pieceRadiusRatio / 2.0f;
+    // 遍历所有格子
+    for (int row = 0; row < m_boardRow; ++row) {
+        for (int col = 0; col < m_boardCOL; ++col) {
+            const Piece* piece = m_board->getPieceAt(row, col);
+            if (!piece) continue; // 没有棋子则跳过
+            
+            // 计算棋子中心位置
+            float centerX = area.x + col * area.cellSize + area.cellSize / 2.0f;
+            float centerY = area.y + row * area.cellSize + area.cellSize / 2.0f;
+            
+            // 确定棋子颜色
+            SDL_Color color;
+            if (selectedPiece && selectedPiece->first == row && selectedPiece->second == col) {
+                // 选中状态的棋子
+                color = m_colors.selected;
+            } else {
+                // 根据玩家设置颜色
+                color = (piece->getPieceOwner() == PlayerID::P1) ? 
+                        m_colors.P1 : m_colors.P2;
+            }
+            
+            // 绘制棋子（圆形）
+            SDL_SetRenderDrawColor(m_renderer, color.r, color.g, color.b, color.a);
+            
+            // 绘制实心圆（使用多个同心圆来近似）
+            for (float r = pieceRadius; r > 0; r -= 1.0f) {
+                SDL_FRect rect = {
+                    centerX - r,
+                    centerY - r,
+                    r * 2.0f,
+                    r * 2.0f
+                };
+                SDL_RenderFillRect(m_renderer, &rect);
+            }
+        }
+    }
+}
+
+BoardArea BoardRenderer::getBoardArea() const {
+    return {
+        (m_Width - m_cellSize * m_boardCOL) / 2,
+        (m_Height - m_cellSize * m_boardRow) / 2,
+        m_cellSize,
+        m_boardRow,
+        m_boardCOL
+    };
+}
+