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Assets/Scenes/PlayScene.unity

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Assets/Scripts/Pointer.cs

+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+public class Pointer : MonoBehaviour {
+    Room currentRoom;
+    [SerializeField]
+    Enemy[] enemies;
+    [SerializeField]
+    Enemy nearestEnemy;
+    public Camera cam;
+    public Vector3 p;
+    public Canvas can;
+    public float width, height;
+    public bool pointEnabled = true;
+	// Use this for initialization
+	void Start () {
+
+        width = can.GetComponent<RectTransform>().sizeDelta.x / 2;
+        height = can.GetComponent<RectTransform>().sizeDelta.y / 2;
+
+    }
+	
+	// Update is called once per frame
+	void Update () {
+        currentRoom = MapManager.currentRoom;
+        enemies= currentRoom.GetComponentsInChildren<Enemy>();
+        pointEnabled = true;
+        float minDistance = 99999999f;
+        foreach(Enemy e in enemies)
+        {
+            Vector3 temp = 120f * (e.transform.parent.transform.position - cam.transform.position);
+            if (Mathf.Abs(temp.x) < width && Mathf.Abs(temp.y) < height)
+            {
+                pointEnabled = false;
+            }
+
+                float dist= Vector3.Distance(cam.transform.position, e.transform.parent.transform.position);
+            if (dist < minDistance)
+            {
+                nearestEnemy = e;
+                minDistance = dist;
+
+            }
+
+        }
+        if (enemies.Length > 0)
+        {
+            p = nearestEnemy.transform.parent.transform.position - cam.transform.position; 
+               Vector3 temp= 120f*(nearestEnemy.transform.parent.transform.position - cam.transform.position);
+            
+            if( Mathf.Abs(temp.x) < width-20f && Mathf.Abs(temp.y) < height-20f)
+            {
+                pointEnabled = false;
+            }
+
+                  GetComponent<RectTransform>().localPosition = new Vector3(Mathf.Clamp(temp.x,-(width-50f),width-50f), Mathf.Clamp(temp.y, -(height-50f), height-50f),0f);
+            if (pointEnabled )
+            {
+                Vector3 local = nearestEnemy.transform.parent.transform.position - GameManager.Instance.player.transform.position;
+                GetComponent<Image>().enabled = true;
+                GetComponent<RectTransform>().localRotation= Quaternion.AngleAxis(Mathf.Rad2Deg*Mathf.Atan2(local.y,local.x)-90, Vector3.forward);
+            }
+           
+            
+
+        }
+        else
+        {
+            pointEnabled = false;
+        }
+        GetComponent<Image>().enabled = pointEnabled;
+        
+	}
+}

Assets/Scripts/Pointer.cs.meta

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