Added delays to GameVariables

Assets/GameVariables.asset

@@ -63,6 +63,9 @@ MonoBehaviour:
   bombExplodeSfx: {fileID: 8300000, guid: 9dcc9b1297952c446a5571fdb2fb7a2f, type: 3}
   bombDelay: 2
   bombRadius: 2
-  dropHeight: 2
-  gemSpeed: 4
+  dropHeight: 3
+  gemSpeed: 5
   scoreSpeed: 3
+  cascadeDelayMs: 150
+  swapDelayMs: 600
+  fillBoardDelayMs: 500

Assets/Scripts/ScriptableObjects/GameVariables.cs

@@ -28,5 +28,10 @@ namespace ScriptableObjects {
         
         [Header("Score")]
         public float scoreSpeed = 5;
+
+        [Header("Delays")]
+        public int cascadeDelayMs = 150;
+        public int swapDelayMs = 600;
+        public int fillBoardDelayMs = 250;
     }
 }

Assets/Scripts/Services/GameBoardService.cs

@@ -138,14 +138,14 @@ namespace Services {
 
             ApplySwap(from, to);
 
-            await UniTask.Delay(600);
+            await UniTask.Delay(this.gameVariables.swapDelayMs);
             this.bombService.SetLastSwap(from, to);
             this.matchService.FindAllMatches();
             this.bombService.DetectBombSpawnFromLastSwap(this.matchService.CurrentMatches);
             
             if (this.matchService.CurrentMatches.Count == 0) {
                 ApplySwap(to, from);
-                await UniTask.Delay(600);
+                await UniTask.Delay(this.gameVariables.swapDelayMs);
                 this.currentState = GameState.Move;
                 return false;
             }
@@ -229,7 +229,7 @@ namespace Services {
                 foreach (Vector2Int p in matchPositions.Distinct())
                     await DestroyAtAsync(p);
 
-                await UniTask.Delay(600);
+                await UniTask.Delay(this.gameVariables.fillBoardDelayMs);
                 
                 await MoveGemsDown();
                 return;
@@ -249,7 +249,7 @@ namespace Services {
                 this.scoreService.ScoreCheck(gem.ScoreValue);
                 ReleaseMatchedGems(pos);
             }
-            await UniTask.Delay(250);
+            await UniTask.Delay(this.gameVariables.fillBoardDelayMs);
             await MoveGemsDown();
         }
 
@@ -283,27 +283,45 @@ namespace Services {
         }
 
         private async UniTask MoveGemsDown() {
-            int nullCounter = 0;
+            while (true)
+            {
+                // Build moves from a snapshot of the current grid state (no mid-wave chaining)
+                List<(Vector2Int from, Vector2Int to, Gem gem)> moves = new List<(Vector2Int, Vector2Int, Gem)>();
+
                 for (int x = 0; x < this.gameBoard.Width; x++)
                 {
-                for (int y = 0; y < this.gameBoard.Height; y++)
+                    for (int y = 1; y < this.gameBoard.Height; y++)
                     {
-                    Gem currentGem = this.gameBoard.GetGemAt(new Vector2Int(x, y));
-                    if (currentGem == null)
-                    {
-                        nullCounter++;
+                        Vector2Int from = new Vector2Int(x, y);
+                        Vector2Int to = new Vector2Int(x, y - 1);
+
+                        Gem gem = this.gameBoard.GetGemAt(from);
+                        if (gem == null)
+                            continue;
+
+                        Gem below = this.gameBoard.GetGemAt(to);
+                        if (below != null)
+                            continue;
+
+                        moves.Add((from, to, gem));
                     }
-                    else if (nullCounter > 0)
-                    {
-                        currentGem.SetPosition(new Vector2Int(currentGem.Position.x, currentGem.Position.y - nullCounter));
-                        this.gameBoard.SetGemAt(currentGem.Position, currentGem);
-                        this.gameBoard.SetGemAt(new Vector2Int(x,y), null);
-                    }
-                }
-                nullCounter = 0;
                 }
 
-            await UniTask.Delay(600);
+                if (moves.Count == 0)
+                    break;
+
+                // Apply all moves simultaneously for this wave
+                for (int i = 0; i < moves.Count; i++)
+                {
+                    (Vector2Int from, Vector2Int to, Gem gem) move = moves[i];
+                    this.gameBoard.SetGemAt(move.to, move.gem);
+                    this.gameBoard.SetGemAt(move.from, null);
+                    move.gem.SetPosition(move.to);
+                }
+
+                await UniTask.Delay(this.gameVariables.cascadeDelayMs);
+            }
+
             await FillBoard();
         }
 
@@ -312,7 +330,7 @@ namespace Services {
 
             this.matchService.FindAllMatches();
             if (this.matchService.CurrentMatches.Count > 0) {
-                await UniTask.Delay(600);
+                await UniTask.Delay(this.gameVariables.fillBoardDelayMs);
 
                 // In cascades, there is no "creating slot" bomb protection.
                 await DestroyMatchesAsync(new List<Vector2Int>());
@@ -359,7 +377,7 @@ namespace Services {
                     SpawnGemGameObject(gem);
 
                 if (i < groups.Count - 1)
-                    await UniTask.Delay(150);
+                    await UniTask.Delay(this.gameVariables.cascadeDelayMs);
             }
             
             if(this.currentState == GameState.Setup)