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

public class PlayerController : MonoBehaviour
{
    [Header ("MOVEMENT VALUES")]
    public float speed;
    private float moveInput;
    private Rigidbody2D rb;

    [Header ("JUMP VALUES")]

    public float jumpForce;
    public Transform GroundCheck;
    public float checkRadius;
    public LayerMask whatIsGround;
    private bool isJumping;
    private bool isGrounded;

    [Header("ATTACK VALUES")]
    public float attackSpeed;
    public Vector2 maxAttackRange;
    private Transform characterPosition;
    private Vector2 targetPosition;
    private bool isAttacking = false;
    public bool canAttack;

    [Header("DEBUGLINES VALUES")]
    public Color lineColor;
    public float lineDuration;
    public bool inDepth;

    // Start is called before the first frame update
    void Start()
    {
        rb = GetComponent<Rigidbody2D>();
    }

    //Must handle every physics calculation in the game
    private void FixedUpdate()
    {
        isGrounded = Physics2D.OverlapCircle(GroundCheck.position, checkRadius, whatIsGround);
        moveInput = Input.GetAxisRaw("Horizontal");
        rb.velocity = new Vector2(moveInput * speed, rb.velocity.y);
    }

    // Update is called once per frame
    void Update()
    {

        //jump
        if (Input.GetKeyDown(KeyCode.Space) && isGrounded)
        {
            rb.velocity = Vector2.up * jumpForce;
        }

        //1 solo frame
        if (Input.GetButtonUp("Fire1"))
        {
            isAttacking = true;
            targetPosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
            StartCoroutine(AttackTo(transform.position, targetPosition, attackSpeed));

            Debug.DrawLine(transform.position, targetPosition, lineColor, lineDuration, false);
        }
    }

	IEnumerator AttackTo(Vector2 currentPosition, Vector2 targetPosition, float speed)
	{
		while (isAttacking)
		{
			transform.position = Vector2.MoveTowards(currentPosition, targetPosition,speed * Time.deltaTime);
			if(Vector2.Distance(transform.position, targetPosition.position) < 5)
			{
				isAttacking = false;
			}
		}
		yield return null;
	}
}