Base I18N implementation : Implement a structure that will make able to select a language within the settings menu (or config.ini) and the said menu option (Currently contains few texts in Japanese, English and French)

TJAPlayer3/Common/CConfigIni.cs

@@ -770,7 +770,6 @@ namespace TJAPlayer3
 
         public bool bEndingAnime = false;   // 2017.01.27 DD 「また遊んでね」画面の有効/無効オプション追加
 
-
 		public STDGBVALUE<E判定文字表示位置> 判定文字表示位置;
 //		public int nハイハット切り捨て下限Velocity;
 //		public int n切り捨て下限Velocity;			// #23857 2010.12.12 yyagi VelocityMin
@@ -875,10 +874,14 @@ namespace TJAPlayer3
         public bool ShinuchiMode; // 真打モード
         public bool FastRender; // 事前画像描画モード
         public int MusicPreTimeMs; // 音源再生前の待機時間ms
-        /// <summary>
+
-        /// DiscordのRitch Presenceに再生中の.tjaファイルの情報を送信するかどうか。
+		// I18N choosen language
-        /// </summary>
+		public string sLang = "jp";
-        public bool SendDiscordPlayingInformation;
+
+		/// <summary>
+		/// DiscordのRitch Presenceに再生中の.tjaファイルの情報を送信するかどうか。
+		/// </summary>
+		public bool SendDiscordPlayingInformation;
 #if false
 		[StructLayout( LayoutKind.Sequential )]
 		public struct STAUTOPLAY								// C定数のEレーンとindexを一致させること
@@ -1287,6 +1290,7 @@ namespace TJAPlayer3
             this.BoxFontName = "MS UI Gothic";
 		    this.ApplyLoudnessMetadata = true;
 			this.bEnableCountdownTimer = true;
+			this.sLang = "jp";
 
 			// 2018-08-28 twopointzero:
 			// There exists a particular large, well-known, well-curated, and
@@ -1530,9 +1534,20 @@ namespace TJAPlayer3
             sw.WriteLine("; Use pre-textures render.");
             sw.WriteLine("{0}={1}", nameof(FastRender), FastRender ? 1 : 0);
             sw.WriteLine();
-            #endregion
+			#endregion
-            #region [ Window関連 ]
+
-            sw.WriteLine( "; 画面モード(0:ウィンドウ, 1:全画面)" );
+
+			#region [Language]
+
+			sw.WriteLine("; プレイ中やメニューの表示される言語を変更。");
+			sw.WriteLine("; Change the displayed language ingame and within the menus.");
+			sw.WriteLine("Lang={0}", this.sLang);
+			sw.WriteLine();
+
+			#endregion
+
+			#region [ Window関連 ]
+			sw.WriteLine( "; 画面モード(0:ウィンドウ, 1:全画面)" );
 			sw.WriteLine( "; Screen mode. (0:Window, 1:Fullscreen)" );
 			sw.WriteLine( "FullScreen={0}", this.b全画面モード ? 1 : 0 );
             sw.WriteLine();
@@ -2163,6 +2178,12 @@ namespace TJAPlayer3
 												this.str曲データ検索パス = str4;
 											}
 											#endregion
+
+											else if( str3.Equals("Lang"))
+                                            {
+												CLangManager.langAttach(str4);
+                                            }
+
 											#region [ skin関係 ]
 											else if ( str3.Equals( "SkinPath" ) )
 											{

TJAPlayer3/I18N/CLang_en.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TJAPlayer3
+{
+    internal class CLang_en : ILang
+    {
+        string ILang.ConfigChangeLanguage()
+        {
+            return "Change the displayed language\ningame and within the menus.";
+        }
+
+        string ILang.ConfigChangeLanguageHead()
+        {
+            return "System language";
+        }
+    }
+}

TJAPlayer3/I18N/CLang_fr.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TJAPlayer3
+{
+    internal class CLang_fr : ILang
+    {
+        string ILang.ConfigChangeLanguage()
+        {
+            return "Changer la langue affichée\ndans les menus et en jeu.";
+        }
+
+        string ILang.ConfigChangeLanguageHead()
+        {
+            return "Langue du système";
+        }
+    }
+}

TJAPlayer3/I18N/CLang_jp.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TJAPlayer3
+{
+    internal class CLang_jp : ILang
+    {
+        string ILang.ConfigChangeLanguage()
+        {
+            return "プレイ中やメニューの\n表示される言語を変更。";
+        }
+
+        string ILang.ConfigChangeLanguageHead()
+        {
+            return "システム言語";
+        }
+    }
+}

TJAPlayer3/I18N/ILang.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace TJAPlayer3
+{
+    internal interface ILang
+    {
+        string ConfigChangeLanguage();
+        string ConfigChangeLanguageHead();
+    }
+
+    static internal class CLangManager
+    {
+        // Cheap factory-like design pattern
+        public static void langAttach(string lang)
+        {
+            switch (lang) {
+                case "fr":
+                    CLangManager.LangInstance = new CLang_fr();
+                    break;
+                case "en":
+                    CLangManager.LangInstance = new CLang_en();
+                    break;
+                case "jp":
+                default:
+                    CLangManager.LangInstance = new CLang_jp();
+                    break;
+            }
+        }
+
+        public static int langToInt(string lang)
+        {
+            switch (lang)
+            {
+                case "fr":
+                    return 2;
+                case "en":
+                    return 1;
+                case "jp":
+                default:
+                    return 0;
+            }
+        }
+
+        public static string intToLang(int idx)
+        {
+            switch (idx)
+            {
+                case 2:
+                    return "fr";
+                case 1:
+                    return "en";
+                case 0:
+                default:
+                    return "jp";
+            }
+        }
+
+        public static string[] Languages = new string[] { "日本語", "English", "Français" };
+        public static ILang LangInstance = new CLang_jp();
+    }
+}

TJAPlayer3/Stages/04.Config/CActConfigList.cs

@@ -62,7 +62,7 @@ namespace TJAPlayer3
 
 		// メソッド
 		#region [ t項目リストの設定_System() ]
-		public void t項目リストの設定_System()
+		public void t項目リストの設定_System(bool refresh = true)
 		{
 			this.tConfigIniへ記録する();
 			this.list項目リスト.Clear();
@@ -79,13 +79,19 @@ namespace TJAPlayer3
 				"Reload song data." );
 			this.list項目リスト.Add( this.iSystemReloadDTX );
 
-            //this.iCommonDark = new CItemList( "Dark", CItemBase.Eパネル種別.通常, (int) CDTXMania.ConfigIni.eDark,
-            //    "HALF: 背景、レーン、ゲージが表示\nされなくなります。\nFULL: さらに小節線、拍線、判定ラ\nイン、パッドも表示されなくなります。",
-            //    "OFF: all display parts are shown.\nHALF: wallpaper, lanes and gauge are\n disappeared.\nFULL: additionaly to HALF, bar/beat\n lines, hit bar, pads are disappeared.",
-            //    new string[] { "OFF", "HALF", "FULL" } );
-            //this.list項目リスト.Add( this.iCommonDark );
 
-            this.iTaikoPlayerCount = new CItemInteger( "プレイ人数", 1, 2, TJAPlayer3.ConfigIni.nPlayerCount,
+			this.iSystemLanguage = new CItemList(CLangManager.LangInstance.ConfigChangeLanguageHead(), CItemList.Eパネル種別.通常, CLangManager.langToInt(TJAPlayer3.ConfigIni.sLang),
+				CLangManager.LangInstance.ConfigChangeLanguage(),
+				CLangManager.Languages);
+			this.list項目リスト.Add(this.iSystemLanguage);
+
+			//this.iCommonDark = new CItemList( "Dark", CItemBase.Eパネル種別.通常, (int) CDTXMania.ConfigIni.eDark,
+			//    "HALF: 背景、レーン、ゲージが表示\nされなくなります。\nFULL: さらに小節線、拍線、判定ラ\nイン、パッドも表示されなくなります。",
+			//    "OFF: all display parts are shown.\nHALF: wallpaper, lanes and gauge are\n disappeared.\nFULL: additionaly to HALF, bar/beat\n lines, hit bar, pads are disappeared.",
+			//    new string[] { "OFF", "HALF", "FULL" } );
+			//this.list項目リスト.Add( this.iCommonDark );
+
+			this.iTaikoPlayerCount = new CItemInteger( "プレイ人数", 1, 2, TJAPlayer3.ConfigIni.nPlayerCount,
                 "プレイ人数切り替え：\n2にすると演奏画面が2人プレイ専用のレイアウトになり、2P専用譜面を読み込むようになります。",
                 "" );
             this.list項目リスト.Add( this.iTaikoPlayerCount );
@@ -489,9 +495,13 @@ namespace TJAPlayer3
 			"Settings for the system key/pad inputs." );
 			this.list項目リスト.Add( this.iSystemGoToKeyAssign );
 
-            OnListMenuの初期化();
+			OnListMenuの初期化();
-			this.n現在の選択項目 = 0;
+			if (refresh)
-			this.eメニュー種別 = Eメニュー種別.System;
+            {
+				this.n現在の選択項目 = 0;
+				this.eメニュー種別 = Eメニュー種別.System;
+			}
+            
 		}
 		#endregion
 		#region [ t項目リストの設定_Drums() ]
@@ -804,7 +814,14 @@ namespace TJAPlayer3
                 //else
                 //{
                 //    // 変更許可
-                    this.list項目リスト[ this.n現在の選択項目 ].tEnter押下();
+                this.list項目リスト[ this.n現在の選択項目 ].tEnter押下();
+
+				if (this.list項目リスト[this.n現在の選択項目] == this.iSystemLanguage)
+                {
+					TJAPlayer3.ConfigIni.sLang = CLangManager.intToLang(this.iSystemLanguage.n現在選択されている項目番号);
+					CLangManager.langAttach(TJAPlayer3.ConfigIni.sLang);
+					t項目リストの設定_System(refresh : false);
+				}
                 //}
 
 
@@ -1554,7 +1571,10 @@ namespace TJAPlayer3
         private CItemToggle SendDiscordPlayingInformation;
         private CItemToggle iSystemBufferedInput;
 		private CItemInteger iSystemRisky;					// #23559 2011.7.27 yyagi
-		private CItemList iSystemSoundType;					// #24820 2013.1.3 yyagi
+		private CItemList iSystemSoundType;                 // #24820 2013.1.3 yyagi
+
+		private CItemList iSystemLanguage;
+		
 		private CItemInteger iSystemWASAPIBufferSizeMs;		// #24820 2013.1.15 yyagi
 //		private CItemInteger iSystemASIOBufferSizeMs;		// #24820 2013.1.3 yyagi
 		private CItemList	iSystemASIODevice;				// #24820 2013.1.17 yyagi
@@ -1713,13 +1733,19 @@ namespace TJAPlayer3
 			TJAPlayer3.ConfigIni.bUseOSTimer = this.iSystemSoundTimerType.bON;								// #33689 2014.6.17 yyagi
 
 			TJAPlayer3.ConfigIni.bTimeStretch = this.iSystemTimeStretch.bON;									// #23664 2013.2.24 yyagi
-//Trace.TraceInformation( "saved" );
+
-//Trace.TraceInformation( "Skin現在Current : " + CDTXMania.Skin.GetCurrentSkinSubfolderFullName(true) );
+
-//Trace.TraceInformation( "Skin現在System  : " + CSkin.strSystemSkinSubfolderFullName );
+			TJAPlayer3.ConfigIni.sLang = CLangManager.intToLang(this.iSystemLanguage.n現在選択されている項目番号);
-//Trace.TraceInformation( "Skin現在BoxDef  : " + CSkin.strBoxDefSkinSubfolderFullName );
+			CLangManager.langAttach(TJAPlayer3.ConfigIni.sLang);
+
+
+			//Trace.TraceInformation( "saved" );
+			//Trace.TraceInformation( "Skin現在Current : " + CDTXMania.Skin.GetCurrentSkinSubfolderFullName(true) );
+			//Trace.TraceInformation( "Skin現在System  : " + CSkin.strSystemSkinSubfolderFullName );
+			//Trace.TraceInformation( "Skin現在BoxDef  : " + CSkin.strBoxDefSkinSubfolderFullName );
 			//CDTXMania.ConfigIni.nMasterVolume = this.iSystemMasterVolume.n現在の値;							// #33700 2014.4.26 yyagi
 			//CDTXMania.ConfigIni.e判定表示優先度 = (E判定表示優先度) this.iSystemJudgeDispPriority.n現在選択されている項目番号;
-            TJAPlayer3.ConfigIni.ShowChara = this.ShowChara.bON;
+			TJAPlayer3.ConfigIni.ShowChara = this.ShowChara.bON;
             TJAPlayer3.ConfigIni.ShowDancer = this.ShowDancer.bON;
             TJAPlayer3.ConfigIni.ShowRunner = this.ShowRunner.bON;
             TJAPlayer3.ConfigIni.ShowMob = this.ShowMob.bON;

TJAPlayer3/Stages/04.Config/CStageコンフィグ.cs

@@ -358,6 +358,9 @@ namespace TJAPlayer3
 							case EItemPanelモード.パッド一覧:
 								bool bIsKeyAssignSelectedBeforeHitEnter = this.actList.bIsKeyAssignSelected;	// #24525 2011.3.15 yyagi
 								this.actList.tEnter押下();
+
+								this.t説明文パネルに現在選択されている項目の説明を描画する();
+
 								if ( this.actList.b現在選択されている項目はReturnToMenuである )
 								{
 									this.t説明文パネルに現在選択されているメニューの説明を描画する();

TJAPlayer3/TJAPlayer3.csproj

@@ -106,6 +106,9 @@
     <Compile Include="Common\Discord.cs" />
     <Compile Include="Common\Easing.cs" />
     <Compile Include="Common\NamePlateConfig.cs" />
+    <Compile Include="I18N\CLang_fr.cs" />
+    <Compile Include="I18N\CLang_en.cs" />
+    <Compile Include="I18N\CLang_jp.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <EmbeddedResource Include="Properties\Discord.resx">
       <Generator>ResXFileCodeGenerator</Generator>
@@ -127,6 +130,7 @@
       <DesignTime>True</DesignTime>
     </Compile>
     <None Include="app.config" />
+    <Compile Include="I18N\ILang.cs" />
     <None Include="TJAPlayer3.manifest" />
     <None Include="DTXManiaGR.exe.x86.manifest" />
     <None Include="Properties\Settings.settings">
@@ -338,6 +342,7 @@
       <Version>4.2.0</Version>
     </PackageReference>
   </ItemGroup>
+  <ItemGroup />
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.