claw

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Claw : MonoBehaviour {

    // Access to the transform component on origin, where the character is firing from
    public Transform origin;

    // How fast claw travels once fired
    public float speed = 4f;

    // Access to the PlayerMovement script
    public PlayerMovement playerMovementScript;

    // Where the claw is traveled to once fired
    public Vector2 target;

    // the lighter target becomes the child of the heavier target, and is dragged over
    public GameObject childObject;

    // Draws the rope between the claw and the gun
    public LineRenderer lineRenderer;

    // Used to determine if the claw is making contact with a light enemy
    public bool isHittingLightEnemy;

    // Used to determine if the claw is retracting towards the gun
    public bool isRetracting;


	void Awake ()
    {
        lineRenderer = GetComponent<LineRenderer>();
	}

	// Update is called once per frame
	void Update ()
    {
        float step = speed * Time.deltaTime;
        transform.position = Vector2.MoveTowards(transform.position, target, step);
        lineRenderer.SetPosition(0, origin.position);
        lineRenderer.SetPosition(1, transform.position);
        if (transform.position == origin.position && isRetracting)
        {
            playerMovementScript.PulledEnemy();
            gameObject.SetActive(false);
        }
	}

    // Called from gun to set position of claw
    public void ClawTarget(Vector2 pos)
    {
        target = pos;
    }

    void OnTriggerEnter2D(Collider2D other)
    {
        isRetracting = true;
        target = origin.position;

        if (other.gameObject.CompareTag("Light Enemy"))
        {
            isHittingLightEnemy = true;
            childObject = other.gameObject;
            other.transform.SetParent(transform);
        }
    }
}