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

[RequireComponent(typeof(Rigidbody))]
public class TankMovement_X : MonoBehaviour
{
    private float turnInputValue;
    private Rigidbody rb;

    public AudioClip[] sounds;
    private AudioSource audioSource;

    // ★キャタピラ
    public GameObject[] cata;

    void Start()
    {
        rb = GetComponent<Rigidbody>();

        audioSource = GetComponent<AudioSource>();
        audioSource.clip = sounds[0];
        audioSource.Play();
    }

    void Update()
    {
        if(Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.S))
        {
            audioSource.clip = sounds[1];
            audioSource.Play();
        }

        if (Input.GetKeyUp(KeyCode.W) || Input.GetKeyUp(KeyCode.S))
        {
            audioSource.clip = sounds[0];
            audioSource.Play();
        }

        if (Input.GetKey(KeyCode.W))
        {
            rb.velocity += transform.forward * 0.4f;

            // ★キャタピラ
            float offset = Time.time * 1.2f;

            foreach(GameObject c in cata)
            {
                c.GetComponent<MeshRenderer>().material.SetTextureOffset("_MainTex", new Vector2(offset, 0));
            }
        }

        if (Input.GetKey(KeyCode.S))
        {
            rb.velocity -= transform.forward * 0.4f;

            // ★キャタピラ
            float offset = Time.time * 1.2f;

            foreach (GameObject c in cata)
            {
                c.GetComponent<MeshRenderer>().material.SetTextureOffset("_MainTex", new Vector2(offset, 0));
            }
        }

        TankTurn();
    }

    void TankTurn()
    {
        turnInputValue = Input.GetAxis("Horizontal");
        float turn = turnInputValue * Time.deltaTime * 50;
        Quaternion turnRotation = Quaternion.Euler(0, turn, 0);
        rb.MoveRotation(rb.rotation * turnRotation);
    }
}