Add matter spawn range

Assets/PerfectWorld/Scripts/Managers/EC_ManMatter.cs

@@ -136,6 +136,13 @@ namespace PerfectWorld.Scripts.Managers
             
             private void SpawnMatterCube(int matterId)
             {
+                // Check if matter is within 1000 units of the host player
+                if (!IsMatterWithinPlayerRange(matterId, 10000f))
+                {
+                    Debug.Log($"Matter {matterId} is too far from player, skipping spawn");
+                    return;
+                }
+
                 // Find the pickupItem component in the scene and create cube for this specific matter
                 pickupItem pickupScript = UnityEngine.Object.FindFirstObjectByType<pickupItem>();
                 if (pickupScript != null)
@@ -150,6 +157,13 @@ namespace PerfectWorld.Scripts.Managers
             
             private void NotifyPickupItem(int matterId)
             {
+                // Check if matter is within 1000 units of the host player
+                if (!IsMatterWithinPlayerRange(matterId, 1000f))
+                {
+                    Debug.Log($"Matter {matterId} is too far from player, skipping notification");
+                    return;
+                }
+
                 // Find the pickupItem component in the scene and update cubes
                 pickupItem pickupScript = UnityEngine.Object.FindFirstObjectByType<pickupItem>();
                 if (pickupScript != null)
@@ -157,6 +171,43 @@ namespace PerfectWorld.Scripts.Managers
                     pickupScript.UpdateMatterCubes();
                 }
             }
+
+            /// <summary>
+            /// Check if a matter is within the specified distance from the host player
+            /// </summary>
+            /// <param name="matterId">The matter ID to check</param>
+            /// <param name="maxDistance">Maximum distance in Unity units</param>
+            /// <returns>True if matter is within range, false otherwise</returns>
+            private bool IsMatterWithinPlayerRange(int matterId, float maxDistance)
+            {
+                // Get the matter data
+                if (!matterDataStorage.TryGetValue(matterId, out info_matter matterData))
+                {
+                    Debug.LogWarning($"Matter data not found for ID: {matterId}");
+                    return false;
+                }
+
+                // Get the host player
+                var hostPlayer = GameController.Instance?.GetHostPlayer();
+                if (hostPlayer == null)
+                {
+                    Debug.LogWarning("Host player not found");
+                    return false;
+                }
+
+                // Convert matter position to Unity Vector3
+                Vector3 matterPosition = new Vector3(matterData.pos.x, matterData.pos.y, matterData.pos.z);
+                
+                // Get player position
+                Vector3 playerPosition = hostPlayer.transform.position;
+                
+                // Calculate distance
+                float distance = Vector3.Distance(matterPosition, playerPosition);
+                
+                Debug.Log($"Matter {matterId} distance from player: {distance:F2} units (max: {maxDistance})");
+                
+                return distance <= maxDistance;
+            }
             
             // Public methods for players to access matter data
             public info_matter? GetMatterData(int matterId)