我如何用Unity3D实现一个Galgame框架（存档读档与设置面板的思路）

开学了开学了，虽然后期很浪，但总的来说过了一个收获颇多的暑假。这里讲一讲最后实现设置面板和存档读档的思路

设置面板

可以采用之前类神庙逃亡项目的思路来写：
在主Canvas上创建一个Panel，当作设置面板，先禁用
如何控制BGM音量和文字显示的快慢？很简单，创建一个SettingManager脚本来管理设置面板，先获取BGM的脚本和带显示文字协程的脚本(好吧，后面看来其实不用，因为我的所有脚本都写有一个供全局调用的实例）

//static:public static Setting_Controller Setting_Instance;//public:public GameObject BGM;public GameObject TextSpeed;// Use this for initializationprivate void Awake(){Setting_Instance = this;//initializeBGM = GameObject.Find("BGM_Source");TextSpeed = GameObject.Find("UI_Control");}

然后在Panel上创建两个Slider来控制，如图：

在SettingManager中写两个函数来修改对应参数，用滑动条来改变值即可：

 public void SetBGMVolume(){BGM.GetComponent<AudioSource>().volume = gameObject.GetComponent<Slider>().value; }public void SetTextSpeed(){UI_Manager.UIManager_Instance.SetTextSpeed(gameObject.GetComponent<Slider>().value);}// Update is called once per frame

存档&读档

比较严谨的可以用PlayerPrefeb或者JSON来处理，这里就说说最最简单的思路，用文件读写来实现。可以分析一下可以用什么来当储存的数据，之前定义过一个LineIndex变量，代表当前脚本的行数，刚好是我们需要的，就它了。然而这是肯定不够的，因为我们在游戏中储存的脚本行必然是一行对话脚本，当前的人物，背景，bgm是没有被储存的（它们是在之前的命令脚本被改变的）
于是，必须将所有信息先存起来，建立一个SaveData类：

 //public:public int LineIndex;public string BGMName;public string BackgroundImgName;public string LCharacter, MCharacter, RCharacter;public float BGMVolume;public float TextSpeed;//private://private Color compare_color;// Use this for initializationprivate void Awake(){LineIndex = TextParser.TextParser_Instance.LineIndex;BGMName = BGM_Management.BGM_Manager_Instance.Current_BGM;BackgroundImgName = UI_Manager.UIManager_Instance.Cor_bgname;//compare_color = new Color(1, 1, 1, 1);TextSpeed = UI_Manager.UIManager_Instance.Cor_DisplayingSpeed;BGMVolume = GameObject.Find("BGM_Source").GetComponent<AudioSource>().volume;}

在初始化时获取当前场景的bgm，背景，角色，以及设置界面。角色立绘储存还需要处理一下，把所有位置变为字符串储存起来

    public void GetCharacters(){LCharacter = TextParser.TextParser_Instance.CurrentCharas[0];MCharacter = TextParser.TextParser_Instance.CurrentCharas[1];RCharacter = TextParser.TextParser_Instance.CurrentCharas[2];}

这样需要储存的东西都到位了，创建一个SavingManager脚本来把数据写入文件中,把savedata类挂到一个空物体上，让SavingManager获取它，将数据打包存进一个string数组中：
初始化:

//publicpublic string DirectPath;public StreamWriter SW1;public SaveData CurrentData;public FileStream fs;// Use this for initializationvoid Start () {DirectPath = Application.streamingAssetsPath;}

packing&writing

public string[] PackingData(SaveData sd1){string[] DataArray = new string[8];DataArray[0] = sd1.LineIndex.ToString();DataArray[1] = sd1.BGMName;DataArray[2] = sd1.BackgroundImgName;DataArray[3] = sd1.LCharacter;DataArray[4] = sd1.MCharacter;DataArray[5] = sd1.RCharacter;DataArray[6] = sd1.BGMVolume.ToString();DataArray[7] = sd1.TextSpeed.ToString();return DataArray;}//public void WriteData(StreamWriter temp){string[] DataStream=PackingData(CurrentData);foreach(string str in DataStream){temp.WriteLine(str);temp.Flush();}temp.Close();}

这里用的StreamWriter来写入，有点麻瓜，毫无安全性可言（但很简单省时），需要先创建好几个存档槽位，然后通过点击slot的按钮来储存。用switch语句来判断是哪个槽位，写入，然后更新存档槽的图片就ok了

switch (gameObject.name){case "Slot_1":UpdateImage(gameObject);fs = new FileStream(DirectPath + "/Slot1.txt", FileMode.Create);SW1 = new StreamWriter(fs);WriteData(SW1);fs.Close();break;case "Slot_2":UpdateImage(gameObject);fs = new FileStream(DirectPath + "/Slot2.txt", FileMode.Create);SW1 = new StreamWriter(fs);WriteData(SW1);fs.Close();break;case "Slot_3":UpdateImage(gameObject);fs = new FileStream(DirectPath + "/Slot3.txt", FileMode.Create);SW1 = new StreamWriter(fs);fs.Close();WriteData(SW1);break;case "Slot_4":UpdateImage(gameObject);fs = new FileStream(DirectPath + "/Slot4.txt", FileMode.Create);SW1 = new StreamWriter(fs);fs.Close();WriteData(SW1);break;default:break;}public void UpdateImage(GameObject gb1){CurrentData = GameObject.Find("SaveDataObject").GetComponent<SaveData>();gb1.GetComponent<Image>().sprite = (Sprite)Resources.Load("Background/" + CurrentData.BackgroundImgName, typeof(Sprite));}

然后是读档，存档和读档用的是一个面板，所以写一个状态量，点击不同的按钮进入不同的（存档，读挡）状态,写一个协程，隔个零点几秒检测一次状态，直接上代码了：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public enum SLState {none,Saving,Loading}
public class State_Manager : MonoBehaviour {public static SLState SaveLoadState;public GameObject Manager_Save;public GameObject Manager_Load;// Use this for initializationprivate void Awake(){SaveLoadState = SLState.none;}void Start () {StartCoroutine("SaveStateCheck");}IEnumerator SaveStateCheck(){yield return new WaitForEndOfFrame();while(true){yield return new WaitForSeconds(0.2f);if(SaveLoadState==SLState.Saving){Manager_Save.SetActive(true);Manager_Load.SetActive(false);}else if(SaveLoadState==SLState.Loading){Manager_Save.SetActive(false);Manager_Load.SetActive(true);}else{Manager_Save.SetActive(false);Manager_Load.SetActive(false);}}}// Update is called once per framevoid Update () {//}
}

通过状态来指示当前储存面板点击槽位是储存还是读取，接着来写读档的LoadingManager脚本,很简单，把文件中的string按行读取，再改变对应UI即可，定义初始化：

public static Loading_Manager Loading_Manager_Instance;public string DirectPath;public string[] CurArray;// Use this for initializationvoid Start () {DirectPath = Application.streamingAssetsPath;Loading_Manager_Instance = this;}

然后是解析和改变UI的函数：

public void Slot_Clicked(){if (State_Manager.SaveLoadState == SLState.Loading){switch (gameObject.name){case "Slot_1":CurArray = LoadData("Slot1.txt");SetUI();break;case "Slot_2":CurArray = LoadData("Slot2.txt");SetUI();break;case "Slot_3":CurArray = LoadData("Slot3.txt");SetUI();break;case "Slot_4":CurArray = LoadData("Slot4.txt");SetUI();break;default:break;}}}public string[] LoadData(string filename){string path = DirectPath + "/" + filename;Debug.Log("readfile:" + path);string[] AllText = File.ReadAllLines(path);//split by linesreturn AllText;}public void SetUI(){string[] pack = CurArray;TextParser.TextParser_Instance.LineIndex = int.Parse(pack[0]);BGM_Management.BGM_Manager_Instance.SetBGM(pack[1]);UI_Manager.UIManager_Instance.SetBackground(pack[2], 1f);UI_Manager.UIManager_Instance.CharacterDisplay("all", "off");if(pack[3]!="null"){UI_Manager.UIManager_Instance.SetCharacter(pack[3], "left");}if (pack[3] != "null"){UI_Manager.UIManager_Instance.SetCharacter(pack[3], "center");}if (pack[3] != "null"){UI_Manager.UIManager_Instance.SetCharacter(pack[3], "right");}Setting_Controller.Setting_Instance.SetBGMVolume();Setting_Controller.Setting_Instance.SetTextSpeed();}

之前的savingmanager也要加入状态的判断,这里就不写了。把ButtonManager更新一下，添加对应的按钮事件,基本完成了，可以运行看看效果

 case "Save_BTN":State_Manager.SaveLoadState = SLState.Saving;UI_Manager.UIManager_Instance.SavingPanel.SetActive(true);GameObject.Find("SaveDataObject").AddComponent<SaveData>();break;case "Load_BTN":State_Manager.SaveLoadState = SLState.Loading;UI_Manager.UIManager_Instance.SavingPanel.SetActive(true);break;case "Setting_BTN":UI_Manager.UIManager_Instance.SettingPanel.SetActive(true);UI_Manager.UIManager_Instance.InitSettingWindow();break;

基本就完成了，暂时就到这里吧，开学了，有时间再更新