public async Task <GamePlayerViewModel.Parameter> GenerateGameLaunchEnvironmentAsync(GameSystemViewModel system, IFileInfo file, IDirectoryInfo rootFolder)
{
var dependenciesMet = await system.CheckDependenciesMetAsync();
if (!dependenciesMet || (system.CheckRootFolderRequired(file) && rootFolder == null))
{
return(null);
}
var vfsRomPath = "ROM";
var vfsSystemPath = "System";
var vfsSavePath = "Save";
var core = system.Core;
string virtualMainFilePath = null;
var provider = default(IStreamProvider);
if (core.NativeArchiveSupport || !ArchiveStreamProvider.SupportedExtensions.Contains(Path.GetExtension(file.Name)))
{
virtualMainFilePath = $"{vfsRomPath}{Path.DirectorySeparatorChar}{file.Name}";
provider = new SingleFileStreamProvider(virtualMainFilePath, file);
if (rootFolder != null)
{
virtualMainFilePath = file.FullName.Substring(rootFolder.FullName.Length + 1);
virtualMainFilePath = $"{vfsRomPath}{Path.DirectorySeparatorChar}{virtualMainFilePath}";
provider = new FolderStreamProvider(vfsRomPath, rootFolder);
}
}
else
{
var archiveProvider = new ArchiveStreamProvider(vfsRomPath, file);
await archiveProvider.InitializeAsync();
provider = archiveProvider;
var entries = await provider.ListEntriesAsync();
virtualMainFilePath = entries.FirstOrDefault(d => system.SupportedExtensions.Contains(Path.GetExtension(d)));
}
var systemFolder = await system.GetSystemDirectoryAsync();
var systemProvider = new FolderStreamProvider(vfsSystemPath, systemFolder);
core.SystemRootPath = vfsSystemPath;
var saveFolder = await system.GetSaveDirectoryAsync();
var saveProvider = new FolderStreamProvider(vfsSavePath, saveFolder);
core.SaveRootPath = vfsSavePath;
provider = new CombinedStreamProvider(new HashSet <IStreamProvider>()
{
provider, systemProvider, saveProvider
});
return(new GamePlayerViewModel.Parameter(core, provider, virtualMainFilePath));
}
public async Task <bool> StartGameAsync(GameSystemVM system, IFile file, IFolder rootFolder = null)
{
if (CoreRunner == null)
{
RootFrame.Navigate(typeof(GamePlayerPage));
}
else
{
await CoreRunner.UnloadGameAsync();
}
StreamProvider?.Dispose();
StreamProvider = null;
string virtualMainFilePath = null;
if (!ArchiveExtensions.Contains(Path.GetExtension(file.Name)))
{
IStreamProvider streamProvider;
GetStreamProviderAndVirtualPath(system, file, rootFolder, out streamProvider, out virtualMainFilePath);
StreamProvider = streamProvider;
}
else
{
var archiveProvider = new ArchiveStreamProvider(VFS.RomPath, file);
await archiveProvider.InitializeAsync();
StreamProvider = archiveProvider;
var entries = await StreamProvider.ListEntriesAsync();
virtualMainFilePath = entries.FirstOrDefault(d => system.SupportedExtensions.Contains(Path.GetExtension(d)));
}
//Navigation should cause the player page to load, which in turn should initialize the core runner
while (CoreRunner == null)
{
await Task.Delay(100);
}
if (virtualMainFilePath == null)
{
return(false);
}
system.Core.OpenFileStream = OnCoreOpenFileStream;
system.Core.CloseFileStream = OnCoreCloseFileStream;
var loadSuccessful = false;
try
{
loadSuccessful = await CoreRunner.LoadGameAsync(system.Core, virtualMainFilePath);
}
catch
{
await StopGameAsync();
return(false);
}
if (loadSuccessful)
{
GameStarted(this);
}
else
{
await StopGameAsync();
return(false);
}
return(loadSuccessful);
}
public async Task <bool> StartGameAsync(GameSystemVM system, IFileInfo file, IDirectoryInfo rootFolder = null)
{
var core = system.Core;
if (CoreRunner == null)
{
RootFrame.Navigate(GamePlayerPageType);
}
else
{
await CoreRunner.UnloadGameAsync();
}
StreamProvider?.Dispose();
StreamProvider = null;
string virtualMainFilePath = null;
if (core.NativeArchiveSupport || !ArchiveExtensions.Contains(Path.GetExtension(file.Name)))
{
virtualMainFilePath = $"{VFSRomPath}{Path.DirectorySeparatorChar}{file.Name}";
StreamProvider = new SingleFileStreamProvider(virtualMainFilePath, file);
if (rootFolder != null)
{
virtualMainFilePath = file.FullName.Substring(rootFolder.FullName.Length + 1);
virtualMainFilePath = $"{VFSRomPath}{Path.DirectorySeparatorChar}{virtualMainFilePath}";
StreamProvider = new FolderStreamProvider(VFSRomPath, rootFolder);
}
}
else
{
var archiveProvider = new ArchiveStreamProvider(VFSRomPath, file);
await archiveProvider.InitializeAsync();
StreamProvider = archiveProvider;
var entries = await StreamProvider.ListEntriesAsync();
virtualMainFilePath = entries.FirstOrDefault(d => system.SupportedExtensions.Contains(Path.GetExtension(d)));
}
var systemFolder = await system.GetSystemDirectoryAsync();
var systemProvider = new FolderStreamProvider(VFSSystemPath, systemFolder);
var saveFolder = await system.GetSaveDirectoryAsync();
var saveProvider = new FolderStreamProvider(VFSSavePath, saveFolder);
StreamProvider = new CombinedStreamProvider(new HashSet <IStreamProvider>()
{
StreamProvider, systemProvider, saveProvider
});
//Navigation should cause the player page to load, which in turn should initialize the core runner
while (CoreRunner == null)
{
await Task.Delay(100);
}
if (virtualMainFilePath == null)
{
return(false);
}
var loadSuccessful = false;
try
{
loadSuccessful = await CoreRunner.LoadGameAsync(core, virtualMainFilePath);
}
catch
{
await StopGameAsync();
return(false);
}
if (loadSuccessful)
{
GameStarted?.Invoke(this);
}
else
{
await StopGameAsync();
return(false);
}
return(loadSuccessful);
}