Added draw board function

src/input/InputManager.cpp

@@ -0,0 +1,54 @@
+#include "InputManager.h"
+#include "ui/Render.h"
+#include "core/Game.h"
+SDL_AppResult InputManager::handleInputEvent(const SDL_Event* event, const Renderer* g_renderer, Game* g_game) {
+
+    switch (event->type) {
+        // 如果检测到退出
+        case SDL_EVENT_QUIT:
+            return SDL_APP_SUCCESS;
+        case SDL_EVENT_MOUSE_BUTTON_DOWN:
+            if (event->button.button == SDL_BUTTON_LEFT) {
+                // 将窗口坐标转为逻辑坐标
+                float logicalX, logicalY;
+                SDL_RenderCoordinatesFromWindow(
+                    g_renderer->getSDLRenderer(),
+                    static_cast<float>(event->button.x),
+                    static_cast<float>(event->button.y),
+                    &logicalX,
+                    &logicalY
+                );
+                auto boardArea = g_renderer->getBoardArea();
+                auto click = handleMouseClick(static_cast<int>(logicalX), static_cast<int>(logicalY), boardArea);
+                if (click) {
+                    auto [row, col] = click.value();
+                    SDL_Log("click on (%d, %d)", row, col);
+                    g_game->handleCoordinateInput(row, col);
+                    g_game->printBoard();
+                } else {
+                    SDL_Log("invail cilck aera!");
+                }
+                return SDL_APP_CONTINUE;
+            }
+    }
+    return SDL_APP_CONTINUE;
+}
+
+std::optional<std::pair<int, int>> 
+InputManager::handleMouseClick(int mouseX, int mouseY, const ui::BoardArea& area) {
+    // 判断是否点击在棋盘区域内
+    if (mouseX < area.x || mouseX >= area.x + area.cellSize * area.cols ||
+        mouseY < area.y || mouseY >= area.y + area.cellSize * area.rows) {
+        return std::nullopt; // 点击在棋盘外
+    }
+
+    // 转换为逻辑坐标
+    int col = (mouseX - area.x) / area.cellSize;
+    int row = (mouseY - area.y) / area.cellSize;
+
+    // 安全检查（通常不需要，但保险）
+    if (row >= 0 && row < area.rows && col >= 0 && col < area.cols) {
+        return std::pair<int, int>{row, col};
+    }
+    return std::nullopt;
+}

src/input/InputManager.h

@@ -0,0 +1,14 @@
+#pragma once
+#include <SDL3/SDL.h>
+#include <optional>
+#include <utility>
+#include "ui/UIType.h"
+class Renderer;
+class Game;
+class InputManager {
+public:
+
+    SDL_AppResult handleInputEvent(const SDL_Event* event, const Renderer* g_renderer, Game* g_game);
+    // 调用前需传入当前棋盘渲染区域（来自 Renderer）
+    std::optional<std::pair<int, int>> handleMouseClick(int mouseX, int mouseY, const ui::BoardArea& boardArea);
+};