улучшен алгоритм заливки

Minint.Core/Services/Impl/FloodFillService.cs

@@ -16,15 +16,12 @@ public sealed class FloodFillService : IFloodFillService
             return;
 
         var queue = new Queue<(int X, int Y)>();
-        var visited = new bool[width * height];
-
         queue.Enqueue((x, y));
-        visited[y * width + x] = true;
+        pixels[y * width + x] = newColorIndex;
 
         while (queue.Count > 0)
         {
             var (cx, cy) = queue.Dequeue();
-            pixels[cy * width + cx] = newColorIndex;
 
             Span<(int, int)> neighbors =
             [
@@ -37,9 +34,9 @@ public sealed class FloodFillService : IFloodFillService
                 if (nx < 0 || nx >= width || ny < 0 || ny >= height)
                     continue;
                 int ni = ny * width + nx;
-                if (visited[ni] || pixels[ni] != targetIndex)
+                if (pixels[ni] != targetIndex)
                     continue;
-                visited[ni] = true;
+                pixels[ni] = newColorIndex;
                 queue.Enqueue((nx, ny));
             }
         }