# 5-4 箭頭自動產生
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ArrowGenerator : MonoBehaviour
{
	public GameObject arrowPrefab;
    float span = 1.0f;
    float delta = 0;
	
    // Start is called before the first frame update
    void Start()
    {


    }

    // Update is called once per frame
    void Update()
    {
        this.delta += Time.deltaTime;
        if (this.delta > this.span) {
            this.delta= 0;
            GameObject go = Instantiate(arrowPrefab) as GameObject;
            int px = Random.Range(-6,7);
            go.transform.position = new Vector3 (px, 7, 0);
        }
    }
}