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

public class ShotShell_Change : MonoBehaviour {

	// （ポイント）
	// 配列の定義
	// 複数の砲弾データを入れる箱の作成
	public GameObject[] shellPrefabs;

	public float shotSpeed;
	public GameObject shellIcon;
	public AudioClip changeSound;

	private int shellNumber = 0;
	private Image image;

	void Start(){
		image = shellIcon.GetComponent<Image> ();
	}


	void Update () {

		// 「各ボタン（z,x,c）」と「shellNumber」を紐づける。
		if (Input.GetKeyDown (KeyCode.Z)) {
			shellNumber = 0;

			// アイコンの色を変える。
			image.color = new Color (1, 0, 1, 1);
			AudioSource.PlayClipAtPoint (changeSound, transform.position);

		} else if (Input.GetKeyDown (KeyCode.X)) {
			shellNumber = 1;
			image.color = new Color (0, 0, 1, 1);
			AudioSource.PlayClipAtPoint (changeSound, transform.position);

		} else if (Input.GetKeyDown (KeyCode.C)) {
			shellNumber = 2;
			image.color = new Color (1, 0.92f, 0.016f, 1);
			AudioSource.PlayClipAtPoint (changeSound, transform.position);
		}

		if (Input.GetKeyDown (KeyCode.Space)) {

			// shellPrefabs[shellNumber]・・・＞shellPrefabs[0]の砲弾、shellPrefabs[1]の砲弾、shellPrefabs[2]の砲弾
			GameObject shell = (GameObject)Instantiate (shellPrefabs[shellNumber], transform.position, Quaternion.identity);
			Rigidbody shellRb = shell.GetComponent<Rigidbody> ();
			shellRb.AddForce (transform.forward * shotSpeed);
			Destroy (shell, 3.0f);
		}
	}
}