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

public class PlayerController : MonoBehaviour
{

    //Move speed of player
    public float moveSpeed;

    //Animator variable, used to trigger animations
    private Animator anim;
    private Rigidbody2D myRigidbody;

    //Movement related stuff, playerMoving to indicate is player moving, lastMove to indicate when player last moved
    public bool playerMoving;
    private Vector2 lastMove;

    private static bool playerExists;

    public bool canMove;
    // Start is called before the first frame update
    void Start()
    {
        //Get the animator for the script
        anim = GetComponent<Animator>();
        myRigidbody = GetComponent<Rigidbody2D>();


        //Prevent multiple players when scene hopping
        if (!playerExists)
        {
            playerExists = true;
            DontDestroyOnLoad(transform.gameObject);
        }
        else
        {
            Destroy(gameObject);
        }

    }

    // Update is called once per frame
    void Update()
    {
        if (canMove || playerMoving)
        {
            //Trigger animations to face on the XY axis
            anim.SetFloat("MoveX", myRigidbody.velocity.y);
            anim.SetFloat("MoveY", myRigidbody.velocity.y);
        }
        else
        {
            myRigidbody.velocity = Vector2.zero;
        }

        if (!canMove)
        {
            myRigidbody.velocity = Vector2.zero;
            return;
        }

        //Put playermoving to false so no animations go off other than idle
        playerMoving = false;

        if (canMove)
        {
            //Script to make the game understand WASD + KEYS
            if (Input.GetAxisRaw("Horizontal") > 0.5f || Input.GetAxisRaw("Horizontal") < -0.5f)
            {
                //Script to make the game understand movement * moveSpeed * time.deltatime to make accurate frame moving
                //transform.Translate(new Vector3(Input.GetAxisRaw("Horizontal") * moveSpeed * Time.deltaTime, 0f, 0f));
                myRigidbody.velocity = new Vector2(Input.GetAxisRaw("Horizontal") * moveSpeed, myRigidbody.velocity.y);

                //Make sure the variable is true to trigger animation
                playerMoving = true;

                //Make the game remember your last movement direction
                lastMove = new Vector2(Input.GetAxisRaw("Horizontal"), 0f);
            }

            //Repeat script for Y axis
            if (Input.GetAxisRaw("Vertical") > 0.5f || Input.GetAxisRaw("Vertical") < -0.5f)
            {
                //transform.Translate(new Vector3(0f, Input.GetAxisRaw("Vertical") * moveSpeed * Time.deltaTime, 0f));
                myRigidbody.velocity = new Vector2(myRigidbody.velocity.x, Input.GetAxisRaw("Vertical") * moveSpeed);
                playerMoving = true;
                lastMove = new Vector2(0f, Input.GetAxisRaw("Vertical"));
            }

            if (Input.GetAxisRaw("Horizontal") < 0.5f && Input.GetAxisRaw("Horizontal") > -0.5f)
            {
                myRigidbody.velocity = new Vector2(0f, myRigidbody.velocity.y);
            }

            if (Input.GetAxisRaw("Vertical") < 0.5f && Input.GetAxisRaw("Vertical") > -0.5f)
            {
                myRigidbody.velocity = new Vector2(myRigidbody.velocity.x, 0f);
            }
        }
        else
        {
            playerMoving = false;
        }

        anim.SetBool("PlayerMoving", playerMoving);
        anim.SetFloat("LastMoveX", lastMove.x);
        anim.SetFloat("LastMoveY", lastMove.y);
    }
}