Adjust Bomb Behavior

Assets/GameVariables.asset

@@ -53,7 +53,7 @@ MonoBehaviour:
     scoreValue: 10
   width: 7
   height: 7
-  bombDelay: 1
+  bombDelay: 2
   bombSelfDelay: 1
   bombRadius: 2
   dropHeight: 2

Assets/Scripts/ScriptableObjects/GameVariables.cs

@@ -18,8 +18,6 @@ namespace ScriptableObjects {
         [Header("Bomb")]
         [Tooltip("How long before the gems around the bomb explode")]
         public float bombDelay = 0.1f;
-        [Tooltip("How long before the bomb itself explodes")]
-        public float bombSelfDelay = 0.05f;
         [Tooltip("How far the explosion reaches")]
         public int bombRadius = 1;
         

Assets/Scripts/Services/BombService.cs

@@ -42,64 +42,95 @@ namespace Services
             Func<Vector2Int, Gem> getGemAt,
             Func<Vector2Int, UniTask> destroyAtAsync,
             int radius,
-            float bombDelaySeconds,
-            float bombSelfDelaySeconds)
+            float bombDelaySeconds)
         {
             if (initialBombs == null || initialBombs.Count == 0)
                 return;
 
-            Queue<Vector2Int> queue = new Queue<Vector2Int>(initialBombs);
-            HashSet<Vector2Int> processed = new HashSet<Vector2Int>();
+            int waveDelayMs = Mathf.Max(0, Mathf.RoundToInt(bombDelaySeconds * 1000f));
 
-            while (queue.Count > 0)
+            HashSet<Vector2Int> processedBombs = new HashSet<Vector2Int>();
+
+            Queue<Vector2Int> waveQueue = new Queue<Vector2Int>(
+                initialBombs.Where(p =>
                 {
-                Vector2Int bombPos = queue.Dequeue();
-                if (processed.Contains(bombPos))
-                    continue;
+                    if (!inBounds(p)) return false;
+                    Gem g = getGemAt(p);
+                    return g is { Type: GemType.Bomb };
+                })
+            );
 
-                if (!inBounds(bombPos))
-                    continue;
-
-                Gem bomb = getGemAt(bombPos);
-                if (bomb is not { Type: GemType.Bomb })
-                    continue;
-
-                processed.Add(bombPos);
-
-                int ringDelayMs = Mathf.RoundToInt(bombDelaySeconds * 1000f);
-
-                for (int dist = 1; dist <= radius; dist++)
+            while (waveQueue.Count > 0)
             {
-                    if (ringDelayMs > 0)
-                        await UniTask.Delay(ringDelayMs);
-
-                    foreach (Vector2Int n in DiamondRing(bombPos, dist))
+                // current wave (per bomb)
+                List<Vector2Int> waveBombs = new List<Vector2Int>();
+                while (waveQueue.Count > 0)
                 {
-                        if (!inBounds(n))
+                    Vector2Int b = waveQueue.Dequeue();
+                    if (processedBombs.Contains(b))
                         continue;
 
-                        Gem g = getGemAt(n);
-                        if (g == null)
+                    if (!inBounds(b))
                         continue;
 
-                        if (g.Type == GemType.Bomb)
+                    Gem g = getGemAt(b);
+                    if (g is not { Type: GemType.Bomb })
+                        continue;
+
+                    processedBombs.Add(b);
+                    waveBombs.Add(b);
+                }
+
+                if (waveBombs.Count == 0)
+                    continue;
+
+                // delay once per wave
+                if (waveDelayMs > 0)
+                    await UniTask.Delay(waveDelayMs);
+
+                HashSet<Vector2Int> nextWaveBombs = new HashSet<Vector2Int>();
+                HashSet<Vector2Int> toDestroyNow = new HashSet<Vector2Int>();
+
+                for (int i = 0; i < waveBombs.Count; i++)
                 {
-                            if (!processed.Contains(n))
-                                queue.Enqueue(n);
+                    Vector2Int bombPos = waveBombs[i];
+
+                    // destroy self when it detonates
+                    toDestroyNow.Add(bombPos);
+
+                    foreach (Vector2Int p in DiamondAreaInclusive(bombPos, radius))
+                    {
+                        if (!inBounds(p))
+                            continue;
+
+                        if (p == bombPos)
+                            continue;
+
+                        Gem cellGem = getGemAt(p);
+                        if (cellGem == null)
+                            continue;
+
+                        if (cellGem.Type == GemType.Bomb)
+                        {
+                            // bombs in range are NOT destroyed now. triggered to explode in a later wave.
+                            if (!processedBombs.Contains(p))
+                                nextWaveBombs.Add(p);
+
                             continue;
                         }
 
-                        await destroyAtAsync(n);
+                        // Non-bomb gem gets destroyed by this bomb
+                        toDestroyNow.Add(p);
                     }
                 }
 
-                int selfDelayMs = Mathf.Max(0, Mathf.RoundToInt(bombSelfDelaySeconds * 1000f));
-                if (selfDelayMs > 0)
-                    await UniTask.Delay(selfDelayMs);
+                // Destroy everything for this wave (non-bombs in range + the detonating bombs themselves)
+                foreach (Vector2Int p in toDestroyNow)
+                    await destroyAtAsync(p);
 
-                Gem stillBomb = getGemAt(bombPos);
-                if (stillBomb is { Type: GemType.Bomb })
-                    await destroyAtAsync(bombPos);
+                // Schedule the next wave (triggered bombs)
+                foreach (Vector2Int b in nextWaveBombs)
+                    waveQueue.Enqueue(b);
             }
         }
 
@@ -119,5 +150,16 @@ namespace Services
                 }
             }
         }
+
+        private static IEnumerable<Vector2Int> DiamondAreaInclusive(Vector2Int center, int radius)
+        {
+            yield return center;
+
+            for (int dist = 1; dist <= radius; dist++)
+            {
+                foreach (Vector2Int pivot in DiamondRing(center, dist))
+                    yield return pivot;
+            }
+        }
     }
 }

Assets/Scripts/Services/GameBoardService.cs

@@ -217,8 +217,7 @@ namespace Services {
                     GetGem,
                     DestroyAtAsync,
                     this.gameVariables.bombRadius,
-                    this.gameVariables.bombDelay,
-                    this.gameVariables.bombSelfDelay);
+                    this.gameVariables.bombDelay);
 
                 await MoveGemsDown();
                 return;
@@ -239,8 +238,7 @@ namespace Services {
                 GetGem,
                 DestroyAtAsync,
                 this.gameVariables.bombRadius,
-                this.gameVariables.bombDelay,
-                this.gameVariables.bombSelfDelay);
+                this.gameVariables.bombDelay);
 
             await MoveGemsDown();
         }

Assets/Scripts/Services/Interfaces/IBombService.cs

@@ -15,7 +15,6 @@ namespace Services.Interfaces
             Func<Vector2Int, Gem> getGemAt,
             Func<Vector2Int, UniTask> destroyAtAsync,
             int radius,
-            float bombDelaySeconds,
-            float bombSelfDelaySeconds);
+            float bombDelaySeconds);
     }
 }