Initial commit

Assets/Scripts/CarPatrol.cs

@@ -0,0 +1,168 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+public class CarPatrol : MonoBehaviour
+{
+    [Header("Waypoints")]
+    [SerializeField] private Transform[] waypoints;
+
+    [Header("Movement")]
+    [SerializeField] private float patrolSpeed = 5f;
+    [SerializeField] private float chaseSpeed = 12f;
+    [SerializeField] private float acceleration = 3f;
+    [SerializeField] private float rotationSpeed = 6f;
+
+    [Header("Detection")]
+    [SerializeField] private float detectionDistance = 20f;
+
+    [Header("Siren Reference")]
+    [SerializeField] private PoliceSiren siren;
+
+    private Transform _player;
+    private int _currentWaypointIndex;
+    private float _currentSpeed;
+    private bool _isChasing;
+
+    void Start()
+    {
+        _player = GameObject.FindGameObjectWithTag("Player")?.transform;
+
+        _currentSpeed = patrolSpeed;
+
+        if (siren != null)
+            siren.isSirenOn = false;
+    }
+
+    void Update()
+    {
+        if (_player == null || waypoints.Length == 0) return;
+
+        DetectPlayer();
+
+        if (_isChasing)
+            ChasePlayer();
+        else
+            Patrol();
+    }
+
+    private void Patrol()
+    {
+        _currentSpeed = patrolSpeed;
+
+        Vector3 target = waypoints[_currentWaypointIndex].position;
+
+        MoveTowards(target);
+        RotateTowards(target);
+
+        if (Vector3.Distance(transform.position, target) < 0.5f)
+        {
+            _currentWaypointIndex++;
+            if (_currentWaypointIndex >= waypoints.Length)
+                _currentWaypointIndex = 0;
+        }
+    }
+
+    private void ChasePlayer()
+    {
+        _currentSpeed = Mathf.MoveTowards(
+            _currentSpeed,
+            chaseSpeed,
+            acceleration * Time.deltaTime
+        );
+
+        MoveTowards(_player.position);
+        RotateTowards(_player.position);
+    }
+
+    private void DetectPlayer()
+    {
+        if (_player == null) return;
+
+        Vector3 toPlayer = _player.position - transform.position;
+
+        float distance = toPlayer.magnitude;
+        if (distance > detectionDistance)
+        {
+            StopChase();
+            return;
+        }
+
+        Vector3 direction = toPlayer.normalized;
+        float dot = Vector3.Dot(transform.forward, direction);
+        if (dot < 0.5f)
+        {
+            StopChase();
+            return;
+        }
+
+        float lateralDistance = Vector3.Cross(transform.forward, toPlayer).magnitude;
+
+        if (lateralDistance > 2f)   
+        {
+            StopChase();
+            return;
+        }
+
+        StartChase();
+    }
+
+    private void StartChase()
+    {
+        if (_isChasing) return;
+
+        _isChasing = true;
+
+        if (siren != null)
+            siren.isSirenOn = true;
+    }
+
+    private void StopChase()
+    {
+        if (!_isChasing) return;
+
+        _isChasing = false;
+        _currentSpeed = patrolSpeed;
+
+        if (siren != null)
+            siren.isSirenOn = false;
+    }
+
+    private void MoveTowards(Vector3 target)
+    {
+        Vector3 targetPos = new Vector3(target.x, transform.position.y, target.z);
+        Vector3 direction = (targetPos - transform.position).normalized;
+
+        transform.position += direction * _currentSpeed * Time.deltaTime;
+    }
+
+    private void RotateTowards(Vector3 target)
+    {
+        Vector3 direction = new Vector3(
+            target.x - transform.position.x,
+            0f,
+            target.z - transform.position.z
+        );
+
+        if (direction == Vector3.zero) return;
+
+        Quaternion targetRotation = Quaternion.LookRotation(direction);
+
+        transform.rotation = Quaternion.Slerp(
+            transform.rotation,
+            targetRotation,
+            rotationSpeed * Time.deltaTime
+        );
+    }
+
+    private void OnCollisionEnter(Collision collision)
+    {
+
+        if (collision.gameObject.CompareTag("Player"))
+        {
+            SceneManager.LoadScene(SceneManager.GetActiveScene().buildIndex);
+        }
+    }
+
+}