VR遊樂園學習（2）—遊樂設備選擇場景

（一）基礎設置

拖入資源庫中的「銀河」材質球，設置放大參數，使相機包裹其中；

設置Canvas分辨率爲1920*1080，RenderMode選爲世界空間；調整位置，視圖以下所示。

 

 （二）場景選擇設置須要設置一個面片，position（0,0，-2000），設置一個空物體（0,0,0），將面片做爲空物體的子物體。將GameItem做爲預製體，使用代碼自動生成。

在遊戲運行時，在GameItemSpan下生成GameItem，定義一個Material[]，每次選擇旋轉的角度private float m_Angle;

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using DG.Tweening;

public class GameItemSelect : MonoBehaviour
{
    public static GameItemSelect _Instance;

    public Material[] m_gameItemMatArr;
    public GameObject go_GameItem;
    private float m_Angle;
    public int Index = 0;


    private void Awake()
    {
        _Instance = this;
        m_Angle = 360.0f / m_gameItemMatArr.Length;
        for (int i = 0; i < m_gameItemMatArr.Length; i++)
        {
            GameObject go = Instantiate(go_GameItem, transform);
            go.transform.localEulerAngles = new Vector3(0, i * m_Angle, 0);
            go.GetComponentInChildren<MeshRenderer>().material = m_gameItemMatArr[i];
            go.GetComponentInChildren<GameItem>().SetVideoName(m_gameItemMatArr[i].name);
            go.GetComponentInChildren<GameItem>().Index = i;
        }

    }

    public void RotateForWord()
    {
        Index++;
        if (Index >= m_gameItemMatArr.Length)
        {
            Index = 0;
        }
        transform.DORotate(new Vector3(0, -Index * m_Angle, 0), 0.3f);
    }
    public void RotateBack()
    {
        Index--;
        if (Index < 0)
        {
            Index = m_gameItemMatArr.Length - 1;
        }
        transform.DORotate(new Vector3(0, -Index * m_Angle, 0), 0.3f);
    }
}

（三）使用DOTwing實現遊樂項目切換

transform.DORotate(new Vector3(0, -Index * m_Angle, 0), 0.3f);

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

public class GameItemPanel : MonoBehaviour {

    private Button btn_Forword;
    private Button btn_Back;
    private Button btn_Select;
    private Text txt_Title;
    private string[] m_GameItemNameArr; 

    private void Awake()
    {
        ReadGameItemNameText();
        Init();
    }
    private void Update()
    {
        txt_Title.text = m_GameItemNameArr[GameItemSelect._Instance.Index];
    }


    private void ReadGameItemNameText()
    {
        TextAsset textAsset= Resources.Load < TextAsset >( "遊樂項目名字");
        m_GameItemNameArr = textAsset.text.Split('\n');
    }

    private void Init()
    {
        txt_Title = transform.Find("txt_Title").GetComponent<Text>();
        btn_Forword = transform.Find("btn_forward").GetComponent<Button>();
        btn_Forword.onClick.AddListener(() =>
        {
            GameItemSelect._Instance.RotateForWord();
        });

        btn_Back = transform.Find("btn_back").GetComponent<Button>();
        btn_Back.onClick.AddListener(() =>
        {
            GameItemSelect._Instance.RotateBack();
        });
        btn_Select = transform.Find("btn_select").GetComponent<Button>();
        btn_Select.onClick.AddListener(() =>
        {
            LoadingPanel._instance.LoadScene();
        });
    }

}

 （4）項目名稱的展現

 新建」遊樂項目」文檔，順序與材質球的順序一致。文檔的編碼爲「UTF_8」，文件放在Resous文件夾中

private void ReadGameItemNameText()
    {
        TextAsset textAsset= Resources.Load < TextAsset >( "遊樂項目名字"); m_GameItemNameArr = textAsset.text.Split('\n'); }

TextAsset爲文本資源，Split（）方法爲切割；