using UnityEngine;
using System.Collections;

public class MovingPlatform : MonoBehaviour
{

public bool isPlayerOn;


[SerializeField]
Transform platform;

[SerializeField]
Transform startTransform;

[SerializeField]
Transform endTransform;

[SerializeField]
float platformSpeed;

Vector3 direction;
Transform destination;


void OnCollisionEnter (Collision other) {

    if (Collision.gameObject.tag == "Player") {
        isPlayerOn = true;
    }

}


void OnCollisionExit (Collision other) {

    if (Collision.gameObject.tag == "Player") {
        isPlayerOn = false;
    }

}

void Start (){
    SetDestination (startTransform);
}



void FixedUpdate(){
    platform.rigidbody.MovePosition (platform.position + direction * platformSpeed * Time.fixedDeltaTime);

    if (Vector3.Distance (platform.position, destination.position) < platformSpeed * Time.fixedDeltaTime) {
        SetDestination (destination == startTransform ? endTransform : startTransform);
    }
}


void SetDestination(Transform dest){
    destination = dest;
    direction = (destination.position -platform.position).normalized;
}

}