using UnityEngine;

namespace UnitySampleAssets._2D
{

    public class PlatformerCharacter2D : MonoBehaviour
    {
        private bool facingRight = true;

        [SerializeField] private float maxSpeed = 10f;
        [SerializeField] private float jumpForce = 400f;

        [Range(0, 1)] [SerializeField] private float crouchSpeed = .36f;


        [SerializeField] private bool airControl = false;
        [SerializeField] private LayerMask whatIsGround;

        private Transform groundCheck;
        private float groundedRadius = .2f;
        private bool grounded = false;
        private Transform ceilingCheck;
        private float ceilingRadius = .01f;
        private Animator anim;


        private void Awake()
        {

            groundCheck = transform.Find("GroundCheck");
            ceilingCheck = transform.Find("CeilingCheck");
            anim = GetComponent<Animator>();
        }


        private void FixedUpdate()
        {

            grounded = Physics2D.OverlapCircle(groundCheck.position, groundedRadius, whatIsGround);
            anim.SetBool("Ground", grounded);


            anim.SetFloat("vSpeed", rigidbody2D.velocity.y);
        }


        public void Move(float move, bool crouch, bool jump)
        {



            if (!crouch && anim.GetBool("Crouch"))
            {

                if (Physics2D.OverlapCircle(ceilingCheck.position, ceilingRadius, whatIsGround))
                    crouch = true;
            }


            anim.SetBool("Crouch", crouch);


            if (grounded || airControl)
            {

                move = (crouch ? move*crouchSpeed : move);


                anim.SetFloat("Speed", Mathf.Abs(move));


                rigidbody2D.velocity = new Vector2(move*maxSpeed, rigidbody2D.velocity.y);


                if (move > 0 && !facingRight)

                    Flip();

                else if (move < 0 && facingRight)

                    Flip();
            }

            if (grounded && jump && anim.GetBool("Ground"))
            {

                grounded = false;
                anim.SetBool("Ground", false);
                rigidbody2D.AddForce(new Vector2(0f, jumpForce));
            }
        }


        private void Flip()
        {

            facingRight = !facingRight;


            Vector3 theScale = transform.localScale;
            theScale.x *= -1;
            transform.localScale = theScale;
        }
    }
}