Question

unity3d C#写发射子弹的程序怎么写

我在自学网上 看- -他用的JAVAs,写了个
#pragma strict

function Start () {

}
var speed:int =5;
var newobject:Transform;
function Update () {
var x:float =Input.GetAxis("Horizontal")*Time.deltaTime*speed;
var z:float=Input.GetAxis("Vertical")*Time.deltaTime*speed;
transform.Translate(x,0,z);
print(x);
if (Input.GetButtonDown ("Fire1")) {
var n:Transform =Instantiate(newobject,transform.position,transform.rotation);
var fwd:Vector3 =transform.TransformDirection(Vector3.forward);
n.rigidbody.AddForce(fwd*20000);
}
}

- -然后我想把他转化为C#却错误
using UnityEngine;
using System.Collections;

public class ffc : MonoBehaviour {

// Use this for initialization
void Start () {

}
int speed=5;
Transform newobject;
// Update is called once per frame
void Update () {
float x = Input.GetAxis ("Horizontal") * Time.deltaTime * speed;
float z = Input.GetAxis ("Vertical") * Time.deltaTime * speed;
transform.Translate (x, 0, z);
if (Input.GetButtonDown ("Fire1")) {
Transform n=Instantiate(newobject,transform.position,transform.rotation);
Vector3 fwd=transform.TransformDirection(Vector3.forward);
n.rigidbody.AddForce(fwd*20000);
}
}
}

求解，他说的是 Transform n=Instantiate(newobject,transform.position,transform.rotation);这句不对，我应该怎么改呢？

Answer 1

木有类型转换
GameObject n=Instantiate(newobject,transform.position,transform.rotation) as GameObject;
Transform nt=n.transform;
Js和C#不同，Instantiate返回的是Object类，需要类型转换

追问

怎么转？？

追答

如回答所说
GameObject n=Instantiate(newobject,transform.position,transform.rotation) as GameObject;

中结尾添加as GameObject

Answer 2

Transform n = Instantiate(newobject,transform.position,transform.rotation) as Transform;