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今天讲了发射子弹并让子弹把墙打坏，并让打出去的子弹两秒后消失效果如下：详细代码如下：usingUnityEngine;usingSystem.Collections;publicclassFire:MonoBehaviour{floatspeed=5.0f;publicGameObjectnewObject;floatfiretima=0.2f;floatnexttime=0.0f;voidUpdate(){floata=-25*Time.deltaTime;floatx=Input.GetAxis("Horizontal")*Time.deltaTime*speed;floatz=Input.GetAxis("Vertical")*Time.deltaTime*speed;transform.Translate(x,0,z);if(Input.GetKey(KeyCode.Z)){transform.Rotate(Vector3.up*a,Space.Self);}if(Input.GetKey(KeyCode.X)){transform.Rotate(Vector3.down*a,Space.Self);}if(Input.GetButton("Fire1")&&nexttime<Time.time){nexttime=firetima+Time.time;GameObjectgo=Instantiate(newObject,transform.position,transform.rotation)asGameObject;go.rigidbody.AddForce(0,0,1231);Destroy(go,2.0f);}}}接下来，我们要做一个太空大战的小游戏具体实现效果是：1、我方点击鼠标左键或按空格键发射子弹，我方子弹连续发射2、敌方飞机和子弹自动运行，子弹每隔0.5秒向我方发射一颗3、我方飞机移动时，敌方子弹跟随我方飞机移动目前实现第一步代码部分代码如下：usingUnityEngine;usingSystem.Collections;publicclassPlayer:MonoBehaviour{floatspeed=-50.0f;publicGameObjectMyplayer;voidUpdate(){floata=Time.deltaTime;floatx=Input.GetAxis("Horizontal")*Time.deltaTime*-speed;floatz=Input.GetAxis("Vertical")*Time.deltaTime*-speed;transform.Translate(x,0,z);if(Input.GetButton("Fire1")){//nexttime=firetima+Time.time;GameObjectgo=Instantiate(Myplayer,transform.position,transform.rotation)asGameObject;go.rigidbody.AddForce(0,0,1231);Destroy(go,2.0f);}}}把脚本放到Player身上，（记得给子弹天加刚体），把预设体拖到这篇文章来自HYPERLINK"http://www.gopedu.com/"狗刨学习网
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