优化选择强化逻辑

src/source/Tetris.cpp

@@ -29,6 +29,43 @@ static bool FileExists(const std::wstring& path);
 static void StopBackgroundMusic();
 static void StartBackgroundMusic();
 
+/**
+ * @brief 将指定滚动偏移按步长调整，并限制在非负范围内。
+ */
+static void AdjustScrollOffset(int& scrollOffset, int delta)
+{
+    scrollOffset += delta;
+    if (scrollOffset < 0)
+    {
+        scrollOffset = 0;
+    }
+    if (scrollOffset > 2400)
+    {
+        scrollOffset = 2400;
+    }
+}
+
+/**
+ * @brief 按当前窗口缩放返回一次滚动操作的像素距离。
+ */
+static int GetScrollStep(HWND hWnd, int baseStep)
+{
+    RECT clientRect;
+    GetClientRect(hWnd, &clientRect);
+
+    int clientWidth = clientRect.right - clientRect.left;
+    int clientHeight = clientRect.bottom - clientRect.top;
+    int scaleX = MulDiv(clientWidth, 1000, WINDOW_CLIENT_WIDTH);
+    int scaleY = MulDiv(clientHeight, 1000, WINDOW_CLIENT_HEIGHT);
+    int scale = (scaleX < scaleY) ? scaleX : scaleY;
+    if (scale < 500)
+    {
+        scale = 500;
+    }
+
+    return MulDiv(baseStep, scale, 1000);
+}
+
 struct LayoutMetrics
 {
     int scale;
@@ -886,6 +923,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
                     {
                         helpState.selectedIndex = i;
                         helpState.currentPage = i + 1;
+                        helpScrollOffset = 0;
                         InvalidateRect(hWnd, nullptr, FALSE);
                         break;
                     }
@@ -899,6 +937,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
             else if (IsPointInRect(GetHelpBackHintRect(hWnd), mouseX, mouseY))
             {
                 helpState.currentPage = 0;
+                helpScrollOffset = 0;
                 InvalidateRect(hWnd, nullptr, FALSE);
             }
             break;
@@ -1013,6 +1052,25 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 
         return DefWindowProc(hWnd, message, wParam, lParam);
     }
+    case WM_MOUSEWHEEL:
+    {
+        int wheelDelta = GET_WHEEL_DELTA_WPARAM(wParam);
+        int direction = (wheelDelta > 0) ? -1 : 1;
+        int scrollStep = GetScrollStep(hWnd, 64);
+        if (currentScreen == SCREEN_RULES && helpState.currentPage != 0)
+        {
+            AdjustScrollOffset(helpScrollOffset, direction * scrollStep);
+            InvalidateRect(hWnd, nullptr, FALSE);
+            break;
+        }
+        if (currentScreen == SCREEN_PLAYING && currentMode == MODE_ROGUE)
+        {
+            AdjustScrollOffset(upgradeListScrollOffset, direction * scrollStep);
+            InvalidateRect(hWnd, nullptr, FALSE);
+            break;
+        }
+        break;
+    }
     case WM_KEYDOWN:
         if (currentScreen == SCREEN_MENU)
         {
@@ -1103,6 +1161,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
                 if (helpState.currentPage == 0)
                 {
                     helpState.currentPage = helpState.selectedIndex + 1;
+                    helpScrollOffset = 0;
                     InvalidateRect(hWnd, nullptr, FALSE);
                 }
                 break;
@@ -1116,6 +1175,7 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
                 else
                 {
                     helpState.currentPage = 0;
+                    helpScrollOffset = 0;
                 }
                 InvalidateRect(hWnd, nullptr, FALSE);
                 break;
@@ -1280,6 +1340,14 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
             break;
         }
 
+        if (currentMode == MODE_ROGUE && (wParam == 'J' || wParam == 'K'))
+        {
+            int direction = (wParam == 'J') ? 1 : -1;
+            AdjustScrollOffset(upgradeListScrollOffset, direction * GetScrollStep(hWnd, 52));
+            InvalidateRect(hWnd, nullptr, FALSE);
+            break;
+        }
+
         switch (wParam)
         {
         case VK_LEFT: