Stopped accidental building

Assets/Scripts/Game/Buildings/BuildingManager.cs

@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using UnityEngine;
-using UnityEngine.UI;
 
 namespace Fruitomation.Game
 {

Assets/Scripts/UI/GameCursor.cs

@@ -32,6 +32,7 @@ namespace Fruitomation.UI
         private readonly List<Collider2D> Colliders = new();
         
         private float StartOfMouseClick;
+        private bool MouseOnGrid;
         
         private void UpdatePosition()
         {
@@ -54,6 +55,8 @@ namespace Fruitomation.UI
                 Math.Clamp(p4.x, 0, 95), // size.x - 1
                 Math.Clamp(p4.y, 0, 48) // size.y - 1
             );
+
+            MouseOnGrid = GridPosition == p4;
         }
 
         private void Update()
@@ -159,7 +162,7 @@ namespace Fruitomation.UI
             BuildingPreview.rectTransform.anchoredPosition = p4;
             
             //
-            if (Input.GetMouseButtonDown(0))
+            if (Input.GetMouseButtonDown(0) && MouseOnGrid)
             {
                 BuildingManager.AddBuildingAt(p1, BuildingPrefab);
             }