maybe made the slowdown when zoomed out much better

2 files changed, 7 insertions, 6 deletions

@@ -55,7 +55,7 @@ void Game::tick(
   bool invert,
   bool onlyDark)
 {
-  std::vector<MapData> temp(map.data());
+  mapDoubleBuffer = map.data();
 
   for (int y = map.getTop(); y < map.getBottom(); y++)
   {
@@ -91,19 +91,19 @@ void Game::tick(
       int tempIndex = map.getTrueX(x) + map.getTrueY(y) * map.getWidth();
       if (count >= 5)
       {
-        temp[tempIndex].tile = Tile::Wall;
+        mapDoubleBuffer[tempIndex].tile = Tile::Wall;
       } else {
-        temp[tempIndex].tile = Tile::Floor;
+        mapDoubleBuffer[tempIndex].tile = Tile::Floor;
       }
 
-      if (temp[tempIndex].tile != map.at(x,y).tile) {
-        temp[tempIndex].dirtyRender = true;
+      if (mapDoubleBuffer[tempIndex].tile != map.at(x,y).tile) {
+        mapDoubleBuffer[tempIndex].dirtyRender = true;
         dirtyRender = true;
       }
     }
   }
 
-  map.data() = std::move(temp);
+  std::swap(map.data(), mapDoubleBuffer);
 }
 
 void Game::tick(bool onlyDark)
@@ -68,6 +68,7 @@ public:
   bool dirtyRender = true;
   size_t numLamps = 0;
   size_t numDust = 0;
+  std::vector<MapData> mapDoubleBuffer;
 
   int player_x = 0;
   int player_y = 0;