Cancel buildmode done

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+    - _rect2props: {r: 10.0000305, g: 9.999878, b: 618.79944, a: 604.6573}
   m_BuildTextureStacks: []
 --- !u!1001 &2331233393358520666
 PrefabInstance:

Assets/Scripts/Manager/GameManager.cs

@@ -9,6 +9,11 @@ public class GameManager : MonoBehaviour
     public bool IsBuildMode = false;
     private Tower selectedTower;
 
+    /// <summary>
+    /// First param: isBuildMode
+    /// </summary>
+    public static event Action<bool> OnUpdateUIRequested;
+
     public Tower SelectedTower { get { return selectedTower; } set {
         if (selectedTower != null)
             selectedTower.TowerSelected(false);
@@ -40,10 +45,12 @@ public class GameManager : MonoBehaviour
     private void m_OnTowerShopSelected(TowerInfo info)
     {
         IsBuildMode = true;
+        OnUpdateUIRequested?.Invoke(IsBuildMode);
     }
 
     private void m_finishBuildmode(TowerInfo info)
     {
         IsBuildMode = false;
+        OnUpdateUIRequested?.Invoke(IsBuildMode);
     }
 }

Assets/Scripts/PlacementSystem/PlacementManager.cs

@@ -108,8 +108,7 @@ public class TowerPlacementManager : MonoBehaviour
         Quaternion newRotation = Quaternion.AngleAxis(CurrentRotation * 90f, transform.up);
         spawnedTower.transform.localRotation = newRotation;
 
-        Destroy(SilhouettedObject);
+        FinishBuild();
-        OnTowerPlaced?.Invoke(SelectedTowerInfo);
     }
 
     public void OnSlotHovered(SlotManager slot, GridManager grid, int x, int y)
@@ -133,6 +132,12 @@ public class TowerPlacementManager : MonoBehaviour
         Destroy(SilhouettedObject);
     }
 
+    public void FinishBuild()
+    {
+        Destroy(SilhouettedObject);
+        OnTowerPlaced?.Invoke(SelectedTowerInfo);
+    }
+
 
     [Space(10)]
     public Material SilhouetteMaterial;

Assets/Scripts/UI/UIBuildModeManager.cs

@@ -0,0 +1,36 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class UIBuildModeManager : MonoBehaviour
+{
+    [SerializeField] private GameObject ShopUI;
+    [SerializeField] private GameObject ConstructionUI;
+
+    [SerializeField] private Button CancelButton;
+
+    private void Start()
+    {
+        GameManager.OnUpdateUIRequested += UpdateBuildModeUI;
+
+        UpdateBuildModeUI(false);
+        CancelButton.onClick.AddListener(OnBuildCancel);
+    }
+    
+    private void OnDisable()
+    {
+        GameManager.OnUpdateUIRequested -= UpdateBuildModeUI;
+    }
+
+    void UpdateBuildModeUI(bool isBuildMode)
+    {
+        ShopUI.SetActive(!GameManager.Instance.IsBuildMode);
+        ConstructionUI.SetActive(GameManager.Instance.IsBuildMode);
+    }
+
+    public void OnBuildCancel()
+    {
+        TowerPlacementManager.Instance.FinishBuild();
+    }
+}

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