公共 API 快速入门

文档版本 v0.1.0-beta.3在 GitHub 上查看源文件

本页是 OmsiLaunch 0.1.0-beta3 英文原始页面 的译文。英文页面为规范文本：如有出入，以英文页面和代码为准。

本页介绍如何在您自己的 .NET 程序中启动、读取并结束一个 OmsiLaunch 会话。本页假定包已安装在 OMSI 2 目录中（见安装），并且 OmsiLaunch.exe /plan 可以在该目录中正常工作（见第一个会话）。完整的契约见公共 API 参考。

占位符：<OMSI_PATH> 是包含 Omsi.exe 和 OmsiLaunch 包的 OMSI 2 安装实例（例如 C:\OMSI 2）。

1. 项目#

API 以 <OMSI_PATH> 中的包程序集形式提供；没有 NuGet 包。请在 x64 net6.0-windows 控制台项目中引用这些程序集。OmsiLaunch.Api、OmsiLaunch.Core 和 OmsiLaunch.Process 是公共接口；其他程序集是它们的依赖项，必须复制到您的程序旁边。

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net6.0-windows</TargetFramework>
    <PlatformTarget>x64</PlatformTarget>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
    <OmsiPath>&lt;OMSI_PATH&gt;</OmsiPath>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="$(OmsiPath)\OmsiLaunch.Api.dll" />
    <Reference Include="$(OmsiPath)\OmsiLaunch.Core.dll" />
    <Reference Include="$(OmsiPath)\OmsiLaunch.Process.dll" />
    <Reference Include="$(OmsiPath)\OmsiLaunch.Configuration.dll" />
    <Reference Include="$(OmsiPath)\OmsiLaunch.Content.dll" />
    <Reference Include="$(OmsiPath)\OmsiLaunch.Builds.Omsi23004.dll" />
    <Reference Include="$(OmsiPath)\YamlDotNet.dll" />
  </ItemGroup>
</Project>

请将 OmsiPath 中的 <OMSI_PATH> 替换为实际路径。

2. 程序#

using OmsiLaunch.Api;
using OmsiLaunch.Core;
using OmsiLaunch.Process;

var root = args.Length > 0 ? args[0] : @"C:\OMSI 2";                 // <OMSI_PATH>
var plugins = Path.Combine(root, "plugins");
var manifest = Path.Combine(root, "release-manifest.json");
IOmsiLaunch launch = new OmsiLaunchService(
    new CurrentWindowsX64Platform(),
    new OmsiLaunchRuntimePaths(plugins, Path.Combine(plugins, "OmsiLaunch.Native.x86.dll"), File.Exists(manifest) ? manifest : null));

// NEW_MAP on Grundorf, first presented entry point. Everything else stays as OMSI has it.
var none = new Dictionary<string, OptionalValue<string>>();
var spec = new LaunchSpec(
    Installation: new InstallationSpec(root),
    World: new WorldSpec(WorldMode.NewMap, OptionalValue<string>.Set(@"maps\Grundorf\global.cfg"), OptionalValue<string>.Unset, OptionalValue<int>.Set(1)),
    Date: new DateSpec(DateTimeMode.Unset, OptionalValue<SemanticDate>.Unset),
    Time: new TimeSpec(DateTimeMode.Unset, OptionalValue<SemanticTime>.Unset),
    PlayerVehicle: OptionalValue<PlayerVehicleSpec>.Unset,
    Environment: new EnvironmentSpec(none, none, none, none, none, none, none, none),
    Behavior: new LaunchBehaviorSpec());

var plan = await launch.PlanSessionAsync(spec);
if (!plan.IsRunnable)
{
    foreach (var diagnostic in plan.Diagnostics.Where(d => d.Code.StartsWith("OL_E_", StringComparison.Ordinal)))
        Console.WriteLine($"{diagnostic.Code}: {diagnostic.Message}");
    return 1;
}

var session = await launch.StartSessionAsync(plan);
try
{
    var status = await launch.WaitForAsync(session, SessionState.Running, TimeSpan.FromSeconds(plan.Spec.Behavior.StartupTimeoutSeconds + 5));
    if (status.State != SessionState.Running)
    {
        Console.WriteLine($"Did not reach gameplay: {status.State} {status.Diagnostics.LastOrDefault()?.Code}");
        return 1;
    }

    var time = await launch.ExecuteRuntimeAsync(session, new RuntimeCommand(session.SessionId, 1, "time.read"), TimeSpan.FromSeconds(5));
    Console.WriteLine(time.Succeeded ? $"OMSI time {time.Values!["hour"]}:{time.Values["minute"]}" : $"time.read failed: {time.ErrorCode}");

    await launch.StopAsync(session);                                   // terminate OMSI and restore every file
    var final = await launch.WaitForAsync(session, SessionState.Completed, TimeSpan.FromMinutes(2));
    Console.WriteLine($"Session ended: {final.State}");
    return final.State == SessionState.Completed ? 0 : 1;
}
finally
{
    await launch.CloseAsync(session);                                  // always, on every path
}

以安装实例作为唯一参数运行：

dotnet run -- "<OMSI_PATH>"

运行过程：检查计划（如果计划不可运行，则不启动任何内容），OMSI 启动并加载 Grundorf，程序读取一次时钟，然后结束会话。OMSI 被终止，OmsiLaunch 更改过的每个文件都会被还原。每个安装实例只允许一个所有者：请先停止同一安装实例上的任何 OmsiLaunch.exe 会话，否则 StartSessionAsync 会报告 OL_E_INSTALLATION_BUSY。

3. 后续步骤#