Demon_接金币（三个掉落物品预设体，一接物体的工具）

接物体的工具

using UnityEngine;

using System.Collections;

public class Tool : MonoBehaviour {

    float hor;

    Vector3 moveDir;

    public float moveSpeed = 3f;

    int score = ;

    void Update()

    {

        hor = Input.GetAxis ("Horizontal");

        //获取移动方向向量

        moveDir = hor * Vector3.right;

        //移动

        transform.position += moveDir * Time.deltaTime * moveSpeed;

    }

    void OnTriggerEnter(Collider other)

    {

        if (other.tag == "Gold") {

            Destroy (other.gameObject);

            Debug.Log (++score);

        }

    }

}

创建掉落体的三个预设体

using UnityEngine;

using System.Collections;

public class GoldCreater : MonoBehaviour {

    //金币预设体

    public GameObject goldPrefab;

    //生成金币的时间间隔

    public float interval = 1f;

    //计时器

    private float timer;

    //索引号

    private int index;

    void Update()

    {

        //计时器计时

        timer += Time.deltaTime;

        //计时完成

        if (timer >= interval) {

            ///TODO:生成金币

            GoldInit();

            //计时器归零

            timer = ;

        }

    }

    /// <summary>

    /// 生成金币

    /// </summary>

    void GoldInit()

    {

        //子对象索引号（随机）

        index = Random.Range (, );

        //生成位置

        Vector3 initPos = transform.GetChild (index).position;

        //生成金币

        Instantiate (goldPrefab, initPos, Quaternion.identity);

    }

}