粒子调整

src/source/TetrisRender.cpp

@@ -8,6 +8,32 @@
 
 using namespace Gdiplus;
 
+static HBRUSH GetCachedParticleBrush(COLORREF color)
+{
+    static COLORREF cachedColors[16] = {};
+    static HBRUSH cachedBrushes[16] = {};
+
+    for (int i = 0; i < 16; i++)
+    {
+        if (cachedBrushes[i] != nullptr && cachedColors[i] == color)
+        {
+            return cachedBrushes[i];
+        }
+    }
+
+    for (int i = 0; i < 16; i++)
+    {
+        if (cachedBrushes[i] == nullptr)
+        {
+            cachedColors[i] = color;
+            cachedBrushes[i] = CreateSolidBrush(color);
+            return cachedBrushes[i];
+        }
+    }
+
+    return CreateSolidBrush(color);
+}
+
 static std::wstring BuildAssetPath(const wchar_t* relativePath)
 {
     wchar_t modulePath[MAX_PATH] = {};
@@ -997,10 +1023,14 @@ void TDrawScreen(HDC hdc, HWND hWnd)
         int elapsed = particleEffects[i].totalTicks - particleEffects[i].ticks;
         int particleX = gameRect.left + particleEffects[i].boardX * grid / 100 + SS(particleEffects[i].velocityX * elapsed);
         int particleY = gameRect.top + particleEffects[i].boardY * grid / 100 + SS(particleEffects[i].velocityY * elapsed + elapsed * elapsed / 4);
-        int particleSize = SS(particleEffects[i].size * particleEffects[i].ticks / particleEffects[i].totalTicks);
-        if (particleSize < SS(2))
+        int particleSize = particleEffects[i].size * particleEffects[i].ticks / particleEffects[i].totalTicks;
+        if (particleSize < 2)
         {
-            particleSize = SS(2);
+            particleSize = 2;
+        }
+        if (particleSize > 6)
+        {
+            particleSize = 6;
         }
 
         RECT particleRect =
@@ -1011,9 +1041,8 @@ void TDrawScreen(HDC hdc, HWND hWnd)
             particleY + particleSize
         };
 
-        HBRUSH particleBrush = CreateSolidBrush(particleEffects[i].color);
+        HBRUSH particleBrush = GetCachedParticleBrush(particleEffects[i].color);
         FillRect(hdc, &particleRect, particleBrush);
-        DeleteObject(particleBrush);
     }
 
     for (int i = 0; i < 8; i++)