随机选择不同的游戏对象

Question

我希望能够在游戏中随机生成不同大小的平台＆＃39; ，但我不知道该怎么做。

请你帮我解决这个问题，因为它在游戏中发挥了重要作用。

这是我到目前为止编写的代码：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Platform_Generator : MonoBehaviour {

    public GameObject[] thePlatforms;

    public Transform generationPoint;
    private float distanceBetween;

    private float platformWidth;

    public float distanceBetweenMin;
    public float distanceBetweenMax;

    private float platformHeight;
    private float platformHeightMin;
    private float platformHeightMax; 

    // Use this for initialization
    void Start () 
    {
        platformWidth = 7;
        platformHeightMax = 0.3f;
        platformHeightMin = -3.9f;
    }

    // Update is called once per frame
    void Update () 
    {
        if (transform.position.x < generationPoint.position.x) 
        {
            platformHeight=Random.Range(platformHeightMax,platformHeightMin);

            distanceBetween = Random.Range(distanceBetweenMin, distanceBetweenMax);

            transform.position = new Vector3 (transform.position.x + platformWidth + distanceBetween, platformHeight, transform.position.z);

            Instantiate (thePlatforms[UnityEngine.Random.Range] , transform.position, transform.rotation);
        }
    }
}