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Assets/RealisticCarControllerV3/Scripts/RCC_TrailerAttachPoint.cs

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+//----------------------------------------------
+//            Realistic Car Controller
+//
+// Copyright © 2014 - 2023 BoneCracker Games
+// https://www.bonecrackergames.com
+// Buğra Özdoğanlar
+//
+//----------------------------------------------
+
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+/// <summary>
+/// Trailer attacher point. Trailer will be attached when two trigger colliders triggers each other.
+/// </summary>
+[AddComponentMenu("BoneCracker Games/Realistic Car Controller/Misc/RCC Trailer Attacher")]
+public class RCC_TrailerAttachPoint : MonoBehaviour {
+
+    private void OnTriggerEnter(Collider col) {
+
+        //  Getting other attacher.
+        RCC_TrailerAttachPoint otherAttacher = col.gameObject.GetComponent<RCC_TrailerAttachPoint>();
+
+        //  If no attacher found, return.
+        if (!otherAttacher)
+            return;
+
+        //  Other vehicle.
+        RCC_CarControllerV3 otherVehicle = otherAttacher.gameObject.GetComponentInParent<RCC_CarControllerV3>();
+
+        //  If no vehicle found, return.
+        if (!otherVehicle)
+            return;
+
+        //  Attach the trailer.
+        GetComponentInParent<ConfigurableJoint>().transform.SendMessage("AttachTrailer", otherVehicle, SendMessageOptions.DontRequireReceiver);
+
+    }
+
+    private void Reset() {
+
+        if (GetComponent<BoxCollider>() == null)
+            gameObject.AddComponent<BoxCollider>().isTrigger = true;
+
+    }
+
+}