ALERROR CExtension::CreateExtension (SDesignLoadCtx &Ctx, CXMLElement *pDesc, EFolderTypes iFolder, CExternalEntityTable *pEntities, CExtension **retpExtension)
// CreateExtension
//
// Loads the given extension or adventure. We take ownership of pEntities.
{
ALERROR error;
int i;
// Create an extension object
CExtension *pExtension;
if (error = CreateExtensionFromRoot(Ctx.sResDb, pDesc, iFolder, pEntities, Ctx.dwInheritAPIVersion, &pExtension, &Ctx.sError))
return error;
// Set up context
Ctx.pExtension = pExtension;
// Load all the design elements
for (i = 0; i < pDesc->GetContentElementCount(); i++)
{
CXMLElement *pItem = pDesc->GetContentElement(i);
if (error = pExtension->LoadDesignElement(Ctx, pItem))
{
pExtension->m_pEntities = NULL; // Let our parent clean up.
delete pExtension;
return error;
}
}
// If this is an adventure and we have no adventure descriptor then we
// fail.
if (pExtension->m_iType == extAdventure && pExtension->m_pAdventureDesc == NULL)
{
pExtension->m_pEntities = NULL; // Let our parent clean up.
delete pExtension;
Ctx.sError = CONSTLIT("Adventure must have an AdventureDesc type.");
return ERR_FAIL;
}
pExtension->AddDefaultLibraryReferences(Ctx);
// Restore
Ctx.pExtension = NULL;
// Done
pExtension->m_iLoadState = (Ctx.bLoadAdventureDesc ? loadAdventureDesc : loadComplete);
*retpExtension = pExtension;
return NOERROR;
}
ALERROR CExtension::CreateBaseFile (SDesignLoadCtx &Ctx, EGameTypes iGame, CXMLElement *pDesc, CExternalEntityTable *pEntities, CExtension **retpBase, TArray<CXMLElement *> *retEmbedded)
// CreateBaseFile
//
// Loads a new extension from the base file.
{
ALERROR error;
int i;
// Create an extension object
CExtension *pExtension = new CExtension;
pExtension->m_sFilespec = Ctx.sResDb;
pExtension->m_dwUNID = 0; // Base is the only extension with 0 UNID.
pExtension->m_iGame = iGame;
pExtension->m_iType = extBase;
pExtension->m_iLoadState = loadEntities;
pExtension->m_iFolderType = folderBase;
pExtension->m_pEntities = pEntities;
pExtension->m_ModifiedTime = fileGetModifiedTime(Ctx.sResDb);
pExtension->m_bRegistered = true;
pExtension->m_bPrivate = true;
pExtension->m_bAutoInclude = true;
pExtension->m_bUsesXML = false;
pExtension->m_bUsesCompatibilityLibrary = false;
// Load the apiVersion
CString sAPIVersion;
if (pDesc->FindAttribute(API_VERSION_ATTRIB, &sAPIVersion))
{
pExtension->m_dwAPIVersion = (DWORD)strToInt(sAPIVersion, 0);
if (pExtension->m_dwAPIVersion < 12)
pExtension->m_dwAPIVersion = 0;
}
// If this version is later than what we expect, then we fail.
if (pExtension->m_dwAPIVersion > API_VERSION)
{
pExtension->m_pEntities = NULL; // Let our parent clean up
delete pExtension;
Ctx.sError = CONSTLIT("Newer version of the Transcendence engine is required.");
return ERR_FAIL;
}
// We return the base extension
*retpBase = pExtension;
// Set up context
Ctx.pExtension = pExtension;
// Load the Main XML file
for (i = 0; i < pDesc->GetContentElementCount(); i++)
{
CXMLElement *pItem = pDesc->GetContentElement(i);
// <Images>
if (strEquals(pItem->GetTag(), IMAGES_TAG))
error = pExtension->LoadImagesElement(Ctx, pItem);
// <Sounds>
else if (strEquals(pItem->GetTag(), SOUNDS_TAG))
error = pExtension->LoadSoundsElement(Ctx, pItem);
// <SystemTypes>
else if (strEquals(pItem->GetTag(), SYSTEM_TYPES_TAG))
error = pExtension->LoadSystemTypesElement(Ctx, pItem);
// <TranscendenceAdventure>
else if (strEquals(pItem->GetTag(), TRANSCENDENCE_ADVENTURE_TAG)
|| strEquals(pItem->GetTag(), TRANSCENDENCE_LIBRARY_TAG)
|| strEquals(pItem->GetTag(), CORE_LIBRARY_TAG))
{
// Return this as an embedded extension
retEmbedded->Insert(pItem);
error = NOERROR;
}
// Other types
else
error = pExtension->LoadDesignElement(Ctx, pItem);
// Check for error
if (error)
{
pExtension->m_pEntities = NULL; // Let our parent clean up
delete pExtension;
return error;
}
}
// Restore
Ctx.pExtension = NULL;
// Done
pExtension->m_iLoadState = loadComplete;
return NOERROR;
}
