using UnityEngine;

// IMPORTANT! You should add RayFire namespace to use RayFire component's event.
using RayFire;

namespace RayFire
{
    // Tutorial script. Allows to subscribe to Rigid component demolition.
    public class DemolitionEventScript : MonoBehaviour
    {
        // Define if script should subscribe to global demolition event
        public bool globalSubscription = false;

        // Local Rigid component which will be checked for demolition.
        // You can get RayfireRigid component which you want to check for demolition in any way you want.
        // This is just a tutorial way to define it.
        public bool         localSubscription = false;
        public RayfireRigid localRigidComponent;

        // /////////////////////////////////////////////////////////
        // Subscribe/Unsubscribe
        // /////////////////////////////////////////////////////////

        // Subscribe to event
        void OnEnable()
        {
            // Subscribe to global demolition event. Every demolition will invoke subscribed methods. 
            if (globalSubscription == true)
                RFDemolitionEvent.GlobalEvent += GlobalMethod;

            // Subscribe to local demolition event. Demolition of specific Rigid component will invoke subscribed methods. 
            if (localSubscription == true && localRigidComponent != null)
                localRigidComponent.demolitionEvent.LocalEvent += LocalMethod;
        }

        // Unsubscribe from event
        void OnDisable()
        {
            // Unsubscribe from global demolition event.
            if (globalSubscription == true)
                RFDemolitionEvent.GlobalEvent -= GlobalMethod;

            // Unsubscribe from local demolition event.
            if (localSubscription == true && localRigidComponent != null)
                localRigidComponent.demolitionEvent.LocalEvent -= LocalMethod;
        }

        // /////////////////////////////////////////////////////////
        // Subscription Methods
        // /////////////////////////////////////////////////////////

        // IMPORTANT!. Subscribed method should has following signature.
        // Void return type and one RayfireRigid input parameter.
        // RayfireRigid input parameter is Rigid component which was demolished.
        // In this way you can get demolition data.

        // Method for local demolition subscription
        void LocalMethod(RayfireRigid rigid)
        {
            // Show amount of fragments
            Debug.Log ("Local demolition: " + rigid.name + " was just demolished and created " + rigid.fragments.Count.ToString() + " fragments");

            // Show contact point
            Debug.Log ("Contact point: " + rigid.limitations.contactVector3.ToString());

            transform.position = rigid.limitations.contactVector3;
        }

        // Method for global demolition subscription
        void GlobalMethod(RayfireRigid rigid)
        {
            // Show amount of fragments
            Debug.Log ("Global demolition: " + rigid.name + " was just demolished and created " + rigid.fragments.Count.ToString() + " fragments");

            // Show contact point
            Debug.Log ("Contact point: " + rigid.limitations.contactVector3.ToString());

            transform.position = rigid.limitations.contactVector3;
        }
    }
}