implement cancel button in path ui

Assets/Scripts/PathRenderer.cs

@@ -178,4 +178,15 @@ public class PathRenderer : MonoBehaviour
 
         _pathCollider.transform.localPosition = (square.pathList[n] + square.pathList[n + 1]) / 2;
     }
+
+    public void DeletePathsAfterNthPath(int n)
+    {
+        square.pathList.RemoveRange(n, _pathRenderer.positionCount - n);
+        square.pathVelocity.RemoveRange(n, _pathRenderer.positionCount - n);
+        for (int i = 0; i < transform.childCount; i++)
+        {
+            if (i + 1 >= n) Destroy(transform.GetChild(i).gameObject);
+        }
+        _pathRenderer.positionCount = square.pathList.Count();
+    }
 }

Assets/Scripts/UIManager.cs

@@ -11,6 +11,8 @@ public class UIManager : MonoBehaviour
     [SerializeField]
     Square square;
     [SerializeField]
+    PathRenderer pathrenderer;
+    [SerializeField]
     Camera playercamera;
     [SerializeField]
     LogScaleSlider velocityslider;
@@ -230,7 +232,7 @@ public class UIManager : MonoBehaviour
         var positions = pathRenderer.PathPositionsXZ;
         var velocitys = pathRenderer.PathVelocitys;
 
-        if(positions.Count<=1 || velocitys.Count <= 1)
+        if (positions.Count <= 1 || velocitys.Count <= 1)
         {
             return;
         }
@@ -238,7 +240,7 @@ public class UIManager : MonoBehaviour
         positions.RemoveAt(0);
         velocitys.RemoveAt(0);
 
-        result = levelManager.player.MoveToRetivePosition(positions,velocitys);
+        result = levelManager.player.MoveToRetivePosition(positions, velocitys);
 
         if (result)
         {
@@ -246,6 +248,13 @@ public class UIManager : MonoBehaviour
         }
     }
 
+    public void PathCancel()
+    {
+        pathrenderer.DeletePathsAfterNthPath(prevSelectPathNum + 1);
+        _pathUI.SetActive(false);
+        prevSelectPathNum = -1;
+    }
+
     public void OnDoubleClicked()
     {
         try