Unity 发射子弹+弹药减少计数功能

创建一个胶囊体（Capsule）改名为Player 作为主角创建一个文件夹命名Prefabs再创建一个Sphere作为子弹,添加上Bullet.cs脚本后拉到Prefabs文件夹内作为预制体1.  新建Fire.cs 类 加载到Player 上using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.UI;public class Fire : MonoBehaviour{

[Header("把子弹预制体拉到这")]
public GameObject _bullet;	//子弹预制体

void Update ()
{

if (UIController.Instance.Count > 0)
{
if (Input.GetMouseButtonDown(0))
{
Instantiate(_bullet);
UIController.Instance.AutoAdd();
}
}
}
}

2.  建Bullet.cs脚本,加载到子弹预制体using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.UI;

//子弹必须先添加Rigidbody组件public class Bullet : MonoBehaviour{private float speed = 100.0f;//子弹速度void Awake(){GetComponent<Rigidbody>().velocity = Vector3.forward * speed;//添加刚体，向前（Z轴）运动}void Update (){Destroy(this.gameObject,1.0f);//1秒后子弹销毁}}

3. 添加计数功能 新建一个Canvas ，创建子节点Panel  再创建子节点text  节点Panel是为了使计数的方块可以适应屏幕，我们选中Panel点击Inspector里面的方块 4.。新建UIController.cs脚本sing System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.UI;public class UIController : MonoBehaviour{private static UIController _instance;public static UIController Instance{get{if (_instance != null){return _instance;}else{return null;}}}[Header("把Canvas/Panel/Text预制体拉到这")]    public Text CountText;    [Header("子弹总数")]    public  int Count;void Awake(){_instance = this;Count = 30;}public void AutoAdd(){CountText.text = "弹药:" + --Count;}}别忘了把UIController绑定到Canves上就行