Unity + .NET Core + MagicOnion v3 環境構築ハンズオン

usingGrpc.Core;usingSystem.Collections;usingSystem.Collections.Generic;usingUnityEngine;publicclassSampleController:MonoBehaviour{privateChannelchannel;voidStart(){this.channel=newChannel("localhost:12345",ChannelCredentials.Insecure);}asyncvoidOnDestroy(){awaitthis.channel.ShutdownAsync();}}

usingMessagePack;usingUnityEngine;namespaceSample.Shared.MessagePackObjects{[MessagePackObject]publicclassPlayer{[Key(0)]publicstringName{get;set;}[Key(1)]publicVector3Position{get;set;}[Key(2)]publicQuaternionRotation{get;set;}}}

usingMagicOnion.Hosting;usingMicrosoft.Extensions.Hosting;usingSystem;usingSystem.Threading.Tasks;namespaceSample.Server{classProgram{staticasyncTaskMain(string[]args){awaitMagicOnionHost.CreateDefaultBuilder().UseMagicOnion().RunConsoleAsync();}}}

<ItemGroup><CompileInclude="..\Sample.Unity\Assets\Scripts\ServerShared\**\*.cs"/></ItemGroup>

usingMagicOnion;namespaceSample.Shared.Services{publicinterfaceISampleService:IService<ISampleService>{UnaryResult<int>SumAsync(intx,inty);UnaryResult<int>ProductAsync(intx,inty);}}

usingMagicOnion;usingMagicOnion.Server;usingSample.Shared.Services;namespaceSample.Server.Services{publicclassSampleService:ServiceBase<ISampleService>,ISampleService{publicUnaryResult<int>SumAsync(intx,inty){returnUnaryResult(x+y);}publicUnaryResult<int>ProductAsync(intx,inty){returnUnaryResult(x*y);}}}

usingGrpc.Core;usingMagicOnion.Client;usingSample.Shared.Services;usingSystem.Threading.Tasks;usingUnityEngine;publicclassSampleController:MonoBehaviour{privateChannelchannel;privateISampleServicesampleService;voidStart(){this.channel=newChannel("localhost:12345",ChannelCredentials.Insecure);this.sampleService=MagicOnionClient.Create<ISampleService>(channel);this.SampleServiceTest(1,2);}asyncvoidOnDestroy(){awaitthis.channel.ShutdownAsync();}asyncvoidSampleServiceTest(intx,inty){varsumReuslt=awaitthis.sampleService.SumAsync(x,y);Debug.Log($"{nameof(sumReuslt)}: {sumReuslt}");varproductResult=awaitthis.sampleService.ProductAsync(2,3);Debug.Log($"{nameof(productResult)}: {productResult}");}}

usingMagicOnion;usingSample.Shared.MessagePackObjects;usingSystem.Threading.Tasks;usingUnityEngine;namespaceSample.Shared.Hubs{/// <summary>/// CLient -> ServerのAPI/// </summary>publicinterfaceISampleHub:IStreamingHub<ISampleHub,ISampleHubReceiver>{/// <summary>/// ゲームに接続することをサーバに伝える/// </summary>TaskJoinAsync(Playerplayer);/// <summary>/// ゲームから切断することをサーバに伝える/// </summary>TaskLeaveAsync();/// <summary>/// メッセージをサーバに伝える/// </summary>TaskSendMessageAsync(stringmessage);/// <summary>/// 移動したことをサーバに伝える/// </summary>TaskMovePositionAsync(Vector3position);}/// <summary>/// Server -> ClientのAPI/// </summary>publicinterfaceISampleHubReceiver{/// <summary>/// 誰かがゲームに接続したことをクライアントに伝える/// </summary>voidOnJoin(stringname);/// <summary>/// 誰かがゲームから切断したことをクライアントに伝える/// </summary>voidOnLeave(stringname);/// <summary>/// 誰かが発言した事をクライアントに伝える/// </summary>voidOnSendMessage(stringname,stringmessage);/// <summary>/// 誰かが移動した事をクライアントに伝える/// </summary>voidOnMovePosition(Playerplayer);}}

usingMagicOnion.Server.Hubs;usingSample.Shared.Hubs;usingSample.Shared.MessagePackObjects;usingSystem;usingSystem.Threading.Tasks;usingUnityEngine;publicclassSampleHub:StreamingHubBase<ISampleHub,ISampleHubReceiver>,ISampleHub{IGrouproom;Playerme;publicasyncTaskJoinAsync(Playerplayer){//ルームは全員固定conststringroomName="SampleRoom";//ルームに参加&ルームを保持this.room=awaitthis.Group.AddAsync(roomName);//自分の情報も保持me=player;//参加したことをルームに参加している全メンバーに通知this.Broadcast(room).OnJoin(me.Name);}publicasyncTaskLeaveAsync(){//ルーム内のメンバーから自分を削除awaitroom.RemoveAsync(this.Context);//退室したことを全メンバーに通知this.Broadcast(room).OnLeave(me.Name);}publicasyncTaskSendMessageAsync(stringmessage){//発言した内容を全メンバーに通知this.Broadcast(room).OnSendMessage(me.Name,message);awaitTask.CompletedTask;}publicasyncTaskMovePositionAsync(Vector3position){// サーバー上の情報を更新me.Position=position;//更新したプレイヤーの情報を全メンバーに通知this.Broadcast(room).OnMovePosition(me);awaitTask.CompletedTask;}protectedoverrideValueTaskOnConnecting(){// handle connection if needed.Console.WriteLine($"client connected {this.Context.ContextId}");returnCompletedTask;}protectedoverrideValueTaskOnDisconnected(){// handle disconnection if needed.// on disconnecting, if automatically removed this connection from group.returnCompletedTask;}}

usingGrpc.Core;usingMagicOnion.Client;usingSample.Shared.Hubs;usingSample.Shared.MessagePackObjects;usingSample.Shared.Services;usingUnityEngine;publicclassSampleController:MonoBehaviour,ISampleHubReceiver{privateChannelchannel;privateISampleServicesampleService;privateISampleHubsampleHub;voidStart(){this.channel=newChannel("localhost:12345",ChannelCredentials.Insecure);this.sampleService=MagicOnionClient.Create<ISampleService>(channel);this.sampleHub=StreamingHubClient.Connect<ISampleHub,ISampleHubReceiver>(this.channel,this);// 普通の API の呼び出しはコメントアウトしておきます// 残しておいても問題はないです（リアルタイム通信と両方動きます）//this.SampleServiceTest(1, 2);this.SampleHubTest();}asyncvoidOnDestroy(){awaitthis.sampleHub.DisposeAsync();awaitthis.channel.ShutdownAsync();}/// <summary>/// 普通のAPI通信のテスト用のメソッド/// </summary>asyncvoidSampleServiceTest(intx,inty){varsumReuslt=awaitthis.sampleService.SumAsync(x,y);Debug.Log($"{nameof(sumReuslt)}: {sumReuslt}");varproductResult=awaitthis.sampleService.ProductAsync(2,3);Debug.Log($"{nameof(productResult)}: {productResult}");}/// <summary>/// リアルタイム通信のテスト用のメソッド/// </summary>asyncvoidSampleHubTest(){// 自分のプレイヤー情報を作ってみるvarplayer=newPlayer{Name="Minami",Position=newVector3(0,0,0),Rotation=newQuaternion(0,0,0,0)};// ゲームに接続するawaitthis.sampleHub.JoinAsync(player);// チャットで発言してみるawaitthis.sampleHub.SendMessageAsync("こんにちは！");// 位置情報を更新してみるplayer.Position=newVector3(1,0,0);awaitthis.sampleHub.MovePositionAsync(player.Position);// ゲームから切断してみるawaitthis.sampleHub.LeaveAsync();}#regionリアルタイム通信でサーバーから呼ばれるメソッド群publicvoidOnJoin(stringname){Debug.Log($"{name}さんが入室しました");}publicvoidOnLeave(stringname){Debug.Log($"{name}さんが退室しました");}publicvoidOnSendMessage(stringname,stringmessage){Debug.Log($"{name}: {message}");}publicvoidOnMovePosition(Playerplayer){Debug.Log($"{player.Name}さんが移動しました: {{x:{player.Position.x},y:{player.Position.y},z:{player.Position.z}}}");}#endregion}

<TargetName="GenerateMessagePack"AfterTargets="Compile"><MessagePackGeneratorInput=".\Sample.Shared.csproj"Output="..\Sample.Unity\Assets\Scripts\Generated\MessagePack.Generated.cs"/></Target><TargetName="GenerateMagicOnion"AfterTargets="Compile"><MagicOnionGeneratorInput=".\Sample.Shared.csproj"Output="..\Sample.Unity\Assets\Scripts\Generated\MagicOnion.Generated.cs"/></Target>

usingMessagePack;usingMessagePack.Resolvers;usingUnityEngine;namespaceAssets.Scripts{classInitialSettings{[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)]staticvoidRegisterResolvers(){// NOTE: Currently, CompositeResolver doesn't work on Unity IL2CPP build. Use StaticCompositeResolver instead of it.StaticCompositeResolver.Instance.Register(MagicOnion.Resolvers.MagicOnionResolver.Instance,MessagePack.Resolvers.GeneratedResolver.Instance,BuiltinResolver.Instance,PrimitiveObjectResolver.Instance,MessagePack.Unity.UnityResolver.Instance);MessagePackSerializer.DefaultOptions=MessagePackSerializer.DefaultOptions.WithResolver(StaticCompositeResolver.Instance);}}}

#if UNITY_IPHONE
usingSystem.IO;usingUnityEditor;usingUnityEditor.Callbacks;usingUnityEditor.iOS.Xcode;publicclassBuildIos{/// <summary>/// Handle libgrpc project settings./// </summary>/// <param name="target"></param>/// <param name="path"></param>[PostProcessBuild(1)]publicstaticvoidOnPostProcessBuild(BuildTargettarget,stringpath){varprojectPath=PBXProject.GetPBXProjectPath(path);varproject=newPBXProject();project.ReadFromString(File.ReadAllText(projectPath));vartargetGuid=project.GetUnityFrameworkTargetGuid();// libz.tbd for grpc ios buildproject.AddFrameworkToProject(targetGuid,"libz.tbd",false);// libgrpc_csharp_ext missing bitcode. as BITCODE exand binary size to 250MB.project.SetBuildProperty(targetGuid,"ENABLE_BITCODE","NO");File.WriteAllText(projectPath,project.WriteToString());}}#endif