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

public class Axe : MonoBehaviour {

    public Rigidbody rb;
    private Vector3 startPosition;
    private Quaternion startRotation;

    public float force = 5;  //mnoznik sily
    public float torque;  //mnoznik rotacji

    private float timeWhenWeStartedFlying;

    private bool blockUser;

    private Vector2 startSwipe;
    private Vector2 endSwipe;

    public float restartTime = 0.3f;
    private bool startedRestartCo; //pomocniczy bool, aby restart dzialal
    // Use this for initialization
    void Start ()
    {
        startPosition = rb.transform.position;
        startRotation = rb.transform.rotation;
    }

    // Update is called once per frame
    void Update ()
    {
        if (blockUser)
            return;
        if (Input.GetMouseButtonDown (0))  //zaznaczenie pozycji po nacisnieciu
        {
            startSwipe = Camera.main.ScreenToViewportPoint(Input.mousePosition);
        }
        if (Input.GetMouseButtonUp (0))  //zaznaczenie pozycji po puszczeniu
        {
            endSwipe = Camera.main.ScreenToViewportPoint(Input.mousePosition);
            Swipe();
            blockUser = true;
        }
    }


    void Swipe()
    {
        rb.isKinematic = false;

        timeWhenWeStartedFlying = Time.time;

        Vector2 swipe = endSwipe - startSwipe; //stworzenie wektora z dwóch pozycji myszki

        int rotationDir;        //ustawienie kierunku rotacji w zaleznosci od wektora
        if (swipe.x >= 0) {     //stworzonego przez gracza
            rotationDir = -1;
        } else {
            rotationDir = 1;
        }

        rb.AddForce (swipe*force, ForceMode.Impulse);  //właściwy wyrzut

        rb.AddTorque(0f,0f, torque*rotationDir, ForceMode.Impulse); //właściwa rotacja
    }


    void OnTriggerEnter(Collider col)
    {
        rb.isKinematic = true;

        if (col.tag == "Block") {
        } else {
            Restart ();
        }//zablokowanie obiektu gdy trafi
    }


    void OnCollisionEnter()
    {
        float timeInAir = Time.time - timeWhenWeStartedFlying;
        if (!rb.isKinematic && timeInAir >= 0.05f)
        {
            Restart();
        }
    }


    void Restart()
    {
        if(startedRestartCo == false)
        {
            StartCoroutine ("RestartCo");
            startedRestartCo = true;
        }
    }

    IEnumerator RestartCo()
    {
        yield return new WaitForSeconds (restartTime);
        rb.velocity = Vector3.zero;
        rb.angularVelocity = Vector3.zero;
        rb.transform.position = startPosition;
        rb.transform.rotation = startRotation;
        rb.isKinematic = false;
        blockUser = false;
        startedRestartCo = false;
    }


}