2 files changed, 7 insertions, 6 deletions
diff --git a/src/game.cpp b/src/game.cpp
index fc57acc..e9a9fbe 100644
--- a/src/game.cpp
+++ b/src/game.cpp

@@ -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) {
+      if (mapDoubleBuffer[tempIndex].tile != map.at(x,y).tile) {
-        temp[tempIndex].dirtyRender = true;
+        mapDoubleBuffer[tempIndex].dirtyRender = true;
        dirtyRender = true;
      }
    }
  }
-  map.data() = std::move(temp);
+  std::swap(map.data(), mapDoubleBuffer);
 }
 void Game::tick(bool onlyDark)
diff --git a/src/game.h b/src/game.h
index 93ca81a..f307156 100644
--- a/src/game.h
+++ b/src/game.h

@@ -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;