update small

Assets/Scripts/AI NPC/FieldOfView.cs

@@ -0,0 +1,52 @@
+using System.Collections;
+using UnityEngine;
+
+public class FieldOfView : MonoBehaviour
+{
+    [Range(0, 360)]
+    public float viewAngle = 90f; 
+    public float viewRadius = 20f;
+    public LayerMask obstacleLayerMask;
+    public LayerMask targetLayerMask;
+    
+    [HideInInspector] public bool canSeePlayer = false;
+    [HideInInspector] public Vector3 lastKnownPlayerPosition;
+
+    void Start()
+    {
+        StartCoroutine(FindTargetWithDelay(0.1f));
+    }
+
+    IEnumerator FindTargetWithDelay(float delay)
+    {
+        while (true)
+        {
+            yield return new WaitForSeconds(delay);
+            FindVisibleTargets();
+        }
+    }
+
+    private void FindVisibleTargets()
+    {
+        canSeePlayer = false;
+        var colliders = Physics.OverlapSphere(transform.position, viewRadius, targetLayerMask);
+
+        for (int i = 0; i < colliders.Length; i++)
+        {
+            var target = colliders[i].transform;
+            var direction = (target.position - transform.position).normalized;
+            var angle = Vector3.Angle(transform.forward, direction);
+
+            if (angle < viewAngle / 2)
+            {
+                float distanceToTarget = Vector3.Distance(transform.position, target.position);
+                if (!Physics.Raycast(transform.position, direction, distanceToTarget, obstacleLayerMask))
+                {
+                    canSeePlayer = true;
+                    lastKnownPlayerPosition = target.position;
+                    Debug.DrawLine(transform.position, target.position, Color.blue, 1f);
+                }
+            }
+        }
+    }
+}