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

public class Grapple : MonoBehaviour{

    public GameObject selector;
    public float rotationSpeed;

    Rigidbody2D rb2d;
    GameObject player;

    void Start(){
        rb2d = GetComponent<Rigidbody2D>();
        player = GameObject.FindGameObjectWithTag("Player");
        selector.SetActive(false);
    }

    void Update(){
        selector.transform.Rotate(0, 0, rotationSpeed);
    }

    void OnMouseOver(){
        if (Vector2.Distance(player.transform.position, transform.position) <= 10){
            selector.SetActive(true);
            player.GetComponent<PlayerController>().ableToGrapple = true;
        }else{
            selector.SetActive(false);
        }
    }

    bool grappled;

    void OnMouseExit(){
        if (!grappled){
            selector.SetActive(false);
            if (!player.GetComponent<PlayerController>().grappled){
                player.GetComponent<PlayerController>().ableToGrapple = false;
            }
        }
    }

    void OnMouseDown(){
        if(Vector2.Distance(player.transform.position, transform.position) <= 10){
            grappled = true;
            SpringJoint2D grapple = player.GetComponent<SpringJoint2D>();
            player.GetComponent<PlayerController>().grappled = true;
            player.GetComponent<CapsuleCollider2D>().isTrigger = true;
            LineRenderer line = player.GetComponent<LineRenderer>();
            line.SetPosition(1, transform.position);
            line.enabled = true;
            grapple.connectedBody = rb2d;
            grapple.distance = Vector2.Distance(player.transform.position, transform.position) - 1f;
            grapple.enabled = true;
        }
    }

    void OnMouseUp(){
        grappled = false;
        SpringJoint2D grapple = player.GetComponent<SpringJoint2D>();
        LineRenderer line = player.GetComponent<LineRenderer>();
        player.GetComponent<PlayerController>().grappled = false;
        player.GetComponent<CapsuleCollider2D>().isTrigger = false;
        line.enabled = false;
        grapple.enabled = false;
        selector.SetActive(false);
        player.GetComponent<PlayerController>().ableToGrapple = false;
    }
}