兩種敵人 每波各每種20個

using UnityEngine;
using System.Collections;

public class MySpwanPoint : MonoBehaviour {
    public const int ENEMY_COUNT = 2;//敵人型別數目
    public const int ENEMY_SPAWN_COUNT = 20;
    public static GameObject[] enemyPrefabs;
    private int m_nIndex = 0;
    private Transform m_pSpawnPoint;
    void
 
 Awake(){
    //從資源中匯入預設
        enemyPrefabs = new GameObject[ENEMY_COUNT];
        for (int i = 0; i < ENEMY_COUNT; i++) {
            enemyPrefabs[i] = Resources.Load<GameObject>(string.Format("Enemys/Enemy0{0}", i+1));
            //Resoureces資料夾下Enemys資料夾里名為Enemy01、Enemy02...
        }
        //出生點
 

        m_pSpawnPoint = GameObject.Find ("SpawnPoint").transform;
    }
    void Start () { 
        StartCoroutine (Spawn ());
    }
    void Update () {    
    }
    //協同
    IEnumerator Spawn(){
        //等5s

        yield return new WaitForSeconds (5);
        while (true) {
            for (int i = 0
 
; i < ENEMY_SPAWN_COUNT; i++) {
                Instantiate(enemyPrefabs[m_nIndex], m_pSpawnPoint.position, Quaternion.identity);
                yield return new WaitForSeconds(2);
            }
            m_nIndex++;
            if(m_nIndex >= ENEMY_COUNT) m_nIndex =0;
            yield return new WaitForSeconds(5);
        }
    }
}