Vector2Int 맨해튼 거리 extension 추가

Assets/Scripts/Extensions.meta

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Assets/Scripts/Extensions/Vector2IntExtensions.cs

+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public static class Vector2IntExtensions
+{
+    public static int ManhattanDistance(this Vector2Int a, Vector2Int b)
+    {
+        return Mathf.Abs(a.x - b.x) + Mathf.Abs(a.y - b.y);
+    }
+}
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Assets/Scripts/Extensions/Vector2IntExtensions.cs.meta

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