Unityでリンクスタートをつくってみた

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

public class LinkStart : MonoBehaviour {

    [SerializeField] GameObject m_godRayPrefab;
    [SerializeField] GameObject m_godRay;

    float rayStartPos = 200f;
    float tunnelRadius = 12f;

    float godraySpeed = 80f;
    float godraySpeedRate = 0.5f; // レイの速度を徐々に速く

    float minWaitTime = 0f;
    float maxWaitTime = 0.2f;
    float waitTimeRate = 0.002f; // 生成スパンを徐々に短く

    void Start() {
        StartCoroutine ("Fire");
    }

    IEnumerator Fire() {
        for(int i = 0; i < 1000; i++) {

            // position
            Vector3 pos = Random.insideUnitCircle * tunnelRadius;
            pos.z = rayStartPos;

            var godRay = Instantiate (m_godRayPrefab, pos, Quaternion.Euler(-90f,0f,0f));
            godRay.transform.parent = m_godRay.transform;

            // color
            Color color = new Color(Random.value, Random.value, Random.value);
            godRay.GetComponent<Renderer> ().material.color = color;

            // addforce
            godRay.GetComponent<Rigidbody>().AddForce(
                godRay.transform.up * godraySpeed * Random.Range(1f,1.5f),
                ForceMode.VelocityChange
            );

            if (minWaitTime < maxWaitTime) {
                godraySpeed += godraySpeedRate;
                maxWaitTime -= waitTimeRate;
            } else {
                // 生成スパンが最短になったらシーンをロード
                Invoke ("GoNextScene", 5f);
            }

            yield return new WaitForSeconds(Random.Range(minWaitTime,maxWaitTime));
        }
    }

    void GoNextScene() {
        // コルーチンを止める場合
        // StopCoroutine ("Fire");

        // fade
        SteamVR_LoadLevel.Begin("NextScene");
    }
}