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

public class PlayerMovement : MonoBehaviour
{
    public float speed;
    private Animator animator;
    private SpriteRenderer spriteRenderer;

    public float jumpSpeed;
    public AudioClip jumpSound;
    private Rigidbody2D rb2d;
    private AudioSource audioSource;
    public LayerMask floor;

    void Start()
    {
        animator = GetComponent<Animator>();
        spriteRenderer = GetComponent<SpriteRenderer>();

        rb2d = GetComponent<Rigidbody2D>();
        audioSource = GetComponent<AudioSource>();
    }

    void Update()
    {
        float moveH = Input.GetAxisRaw("Horizontal");
        Vector2 movement = new Vector2(moveH, 0);
        transform.Translate(movement * Time.deltaTime * speed);

        animator.SetFloat("Speed", moveH);

        if (moveH > 0.5f)
        {
            spriteRenderer.flipX = false;
        }
        else if (moveH < -0.5f)
        {
            spriteRenderer.flipX = true;
        }

        if (Input.GetKeyDown(KeyCode.Space) && IsGrounded())
        {
            rb2d.velocity = Vector2.up * jumpSpeed;
            audioSource.PlayOneShot(jumpSound);

            animator.SetTrigger("Jump");
        }
    }

    private bool IsGrounded()
    {
        // ★改良（接地判定）
        // BoxCastの活用
        RaycastHit2D hit2d = Physics2D.BoxCast(transform.position, new Vector2(1f, 1f), 0f, Vector2.down, 0.1f, floor);
        return hit2d.collider != null;

        //RaycastHit2D hit2d = Physics2D.Raycast(transform.position, Vector2.down, 0.6f, floor); // Layerで場合分け（ポイント）
        //return hit2d.collider != null;
    }
}