using UnityEngine;

using System.Collections;

public class CubeInit : MonoBehaviour {

    //砖块预设体

    public GameObject cubePrefab;

    //砖墙宽高

    public Vector2 W_H = new Vector2(,);

    void Start()

    {

        for (int i = ; i < W_H.x; i++) {

            for (int j = ; j < W_H.y; j++) {

                //砖块位置

                Vector3 pos = new Vector3 (i,j,);

                //生成砖块

                Instantiate (cubePrefab, pos, Quaternion.identity);

            }

        }

    }

}

using UnityEngine;

using System.Collections;

public class Fire : MonoBehaviour {

    //子弹预设体

    public GameObject bulletPrefab;

    //子弹飞行速度

    public float speed = 3f;

    //鼠标转换的射线

    private Ray mouseRay;

    //射线碰撞检测器

    private RaycastHit hit;

    void Update()

    {

        //按下鼠标左键

        if (Input.GetMouseButtonDown ()) {

            //获取射线对象

            mouseRay = Camera.main.ScreenPointToRay (Input.mousePosition);

            //如果射线检测到碰撞体

            if (Physics.Raycast (mouseRay, out hit)) {

                //生成子弹

                GameObject currentBullet = Instantiate (bulletPrefab,

                    Camera.main.transform.position,

                    Quaternion.identity) as GameObject;

                //子弹飞行方向

                Vector3 dir = hit.point - Camera.main.transform.position;

                //给子弹施加一个力

                currentBullet.GetComponent<Rigidbody> ().AddForce (dir.normalized * speed);

                //2秒后销毁子弹

                Destroy (currentBullet, 2f);

            }

        }

    }

}