unity3d 学习 1

using UnityEngine;
using System.Collections;

//声明 有属性将在检视面板出现
[AddComponentMenu("Camera-Control/Shooter")]

[System.Serializable]
public class Shooter : MonoBehaviour {

    public Transform bullet;

    public float moveSpeed = 0.10f;

    public float power = 1500f;
    
    void Update () {

        /**
         * Input.GetAxis("Horizontal") 返回1 表示水平向右 -1为向左
         * Input.GetAxis("Vertical")   返回1 表示垂直向上 -1为向下
         * */
        float h = Input.GetAxis("Horizontal") * Time.deltaTime * moveSpeed;
        float v = Input.GetAxis("Vertical") * Time.deltaTime * moveSpeed;

        this.transform.Translate(h, v, 0);

        //键盘按下空白键
        if (Input.GetKey(KeyCode.Space))
        {
            //构建一颗子弹，根据检视面板
            Transform instance = Instantiate(bullet, transform.position, transform.rotation) as Transform;

            //取当前前方方向
            Vector3 fwd = transform.TransformDirection(Vector3.forward);

            //给子弹给个发射的力
            instance.rigidbody.AddForce(fwd * power);
        }
    }
}

using UnityEngine;
using System.Collections;

public class delBullet : MonoBehaviour {

    // Use this for initialization
    void Start () {
        Destroy(gameObject, 3.0f); //倒数3秒 销毁
    }
}