磚石（星星）控制類gemController的主要行為：

• 磚石（星星）與玩家碰撞檢測
• 吃到磚石（星星）時聲音處理
• 吃到磚石（星星）聲音控制
• 磚石（星星）上下移動控制

磚石（星星）控制類gemController類程式碼：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
//磚石控制類
public class gemController : MonoBehaviour {

    public float speed;
    public AudioClip soundName;
    AudioSource au;
    private
 
 float startPos;
    private bool isDown;
    // Use this for initialization
    void Start () {
        speed = 0.002f;
        isDown = true;
        startPos = transform.position.y;

        au = GetComponent<AudioSource>();
    }   
    // Update is called once per frame
    void Update () {
        if
 
 (isDown)
        {
            transform.Translate(Vector3.down * speed);
        }
        else
        {
            transform.Translate(Vector3.up * speed);
        }
        if ((transform.position.y - startPos) > 0)
            isDown = true;
        if ((transform.position.y - startPos) < -0.40
 
f)
            isDown = false;

    }
    //播放聲音
    void playSound(AudioClip audioc)
    {
        if (!au.isPlaying)
        {
            au=PlayClipAtPoint(audioc, new Vector3(0,0,-15), 5f);
        }
    }
    //吃到磚石時聲音處理
    public  AudioSource PlayClipAtPoint(AudioClip clip, Vector3 position, float volume )
    {
        GameObject gameObject = new GameObject("One shot audio");
        gameObject.transform.position = position;
        AudioSource audioSource = (AudioSource)gameObject.AddComponent(typeof(AudioSource));
        audioSource.clip = clip;
        audioSource.spatialBlend = 1f;
        audioSource.volume = volume;
        audioSource.Play();
        Object.Destroy(gameObject, clip.length * ((Time.timeScale >= 0.01f) ? Time.timeScale : 0.01f));
        return audioSource;
    }
    //磚石與玩家碰撞檢測
    void OnTriggerEnter(Collider collider)
    {
        if (collider.tag == "Player")
        {
            playSound(soundName);
            Destroy(gameObject);
        }
    }
}