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

public class Player : MonoBehaviour
{

    //Movement Speed default value
    public float StartMovementSpeed = 1.5f;
    //Movement speed multiplier
    public float MoveSpeedMultiplier = 3.2f;
    //Jump power value
    public float JumpPower = 10f;

    //the grounded bool, which determines if the player can jump or not
    private bool Grounded;

    //References
    private Rigidbody2D playerRigidbody;
    private Collider2D playerCollider;
    [SerializeField]
    private LayerMask GroundLayer;
    private Animator playerAnimator;



    private void Start()
    {
        //creates the references for some of the player components
        playerRigidbody = gameObject.GetComponent<Rigidbody2D>();
        playerCollider = gameObject.GetComponent<Collider2D>();
        playerAnimator = gameObject.GetComponent<Animator>();
    }

    private void Update()
    {
        //calls the movement function every frame
        Movement();
    }

    private void FixedUpdate()
    {
        //increases the move speed every few frames
        StartMovementSpeed = StartMovementSpeed + (MoveSpeedMultiplier * Time.deltaTime);
    }


    private void Movement()
    {
        //moves the player right, with increasing speed
        playerRigidbody.velocity = new Vector2(StartMovementSpeed, playerRigidbody.velocity.y);

        //sets the grounded bool depending if the player's collider is touching the groundLayer++
        Grounded = Physics2D.IsTouchingLayers(playerCollider, GroundLayer);

        if (Input.GetMouseButtonDown(0) || Input.GetKeyDown(KeyCode.Space))
        {
            if(Grounded == true)
            {
                //adds the jump force to the player's y axis
                playerRigidbody.velocity = new Vector2(playerRigidbody.velocity.x, playerRigidbody.velocity.y + JumpPower);
            }
        }

        //sets the animator component's grounded value
        playerAnimator.SetBool("Grounded", Grounded);
    }
}