Clean, self-contained extraction of the BattleTech-specific work from the
reverse-engineering workspace -- engine + game + content + build, with nothing
from Red Planet or the raw archive dumps. Builds green (Win32) and runs the
single-player drive->animate->target->fire->damage->destroy loop out of the box.
Layout:
engine/ MUNGA + MUNGA_L4 shared 2007 engine, carrying our BT render/loader
work (bgfload/L4D3D/L4VIDEO: BSL bit-slice decode, LOD/ground/shadow
models) + image codec; the minimal rp/ headers the audio HAL needs
game/ reconstructed BT logic + surviving-original BT source + fwd shims
+ WinMain launcher
content/ full runtime tree (BTL4.RES, VIDEO/, GAUGE/, AUDIO/, eggs, BTDPL.INI)
docs/ format specs + reconstruction ledgers
reference/ raw Ghidra pseudocode (recon source-of-truth) + decomp exporter
tools/ MP console emulator + map/resource scanners
One top-level CMake builds munga_engine lib + bt410_l4 game lib + btl4.exe.
All paths relativized (186 fwd shims + ~437 CMake abs paths -> repo-relative);
DXSDK is the one external, overridable via -DDXSDK. Verified: builds to a
byte-identical 2.27MB exe and runs combat (TARGET DESTROYED, 0 crashes) against
the bundled content.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
279 lines
6.5 KiB
C++
279 lines
6.5 KiB
C++
#include "munga.h"
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#pragma hdrstop
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#include "boxsolid.h"
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#include "fileutil.h"
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#include "doorfram.h"
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#include "door.h"
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#include "app.h"
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#include "notation.h"
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#include "namelist.h"
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//#############################################################################
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// Shared Data Support
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//
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Derivation* DoorFrame::GetClassDerivations()
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{ static Derivation classDerivations(UnscalableTerrain::GetClassDerivations(), "DoorFrame");
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return &classDerivations;
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}
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DoorFrame::SharedData
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DoorFrame::DefaultData(
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DoorFrame::GetClassDerivations(),
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DoorFrame::GetMessageHandlers(),
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DoorFrame::GetAttributeIndex(),
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DoorFrame::StateCount,
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(Entity::MakeHandler)DoorFrame::Make
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);
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//#############################################################################
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// Test Support
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//
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Logical
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DoorFrame::TestInstance() const
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{
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return IsDerivedFrom(*GetClassDerivations());
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}
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//#############################################################################
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// Construction and Destruction
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//
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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DoorFrame::DoorFrame(
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DoorFrame::MakeMessage *creation_message,
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DoorFrame::SharedData &virtual_data
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):
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UnscalableTerrain(creation_message, virtual_data)
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{
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Check_Pointer(this);
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Check(creation_message);
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Check(&virtual_data);
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SetValidFlag();
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SetPerformance(&DoorFrame::DoNothing);
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//
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// Get the subsystem_resource from the resource file
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//
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Check(application);
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ResourceDescription *subsystem_resource =
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application->GetResourceFile()->SearchList(
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resourceID,
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ResourceDescription::SubsystemModelStreamResourceType
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);
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Check(subsystem_resource);
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subsystem_resource->Lock();
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Check_Pointer(subsystem_resource->resourceAddress);
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MemoryStream subsystem_stream(
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subsystem_resource->resourceAddress,
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subsystem_resource->resourceSize);
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subsystemCount = *(int*)subsystem_stream.GetPointer();
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subsystem_stream.AdvancePointer(sizeof(int));
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Verify(subsystemCount);
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//
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// Set up Subsystems
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//
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subsystemArray = new (Subsystem(*[subsystemCount]));
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Register_Pointer(subsystemArray);
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//
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// Attach the doors as defined in the mod file
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//
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for (int ii=BasicSubsystemCount; ii<subsystemCount; ++ii)
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{
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Door::SubsystemResource *subsystem_resource =
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(Door::SubsystemResource *)subsystem_stream.GetPointer();
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subsystemArray[ii] = new Door(this, ii, subsystem_resource);
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Register_Object(subsystemArray[ii]);
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subsystem_stream.AdvancePointer(subsystem_resource->subsystemModelSize);
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}
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subsystem_resource->Unlock();
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Check(this);
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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DoorFrame*
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DoorFrame::Make(DoorFrame::MakeMessage *creation_message)
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{
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return new DoorFrame(creation_message);
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}
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Logical
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DoorFrame::CreateMakeMessage(
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MakeMessage *creation_message,
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NotationFile *model_file,
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const ResourceDirectories *directories
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)
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{
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Check(creation_message);
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Check(model_file);
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if (
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!UnscalableTerrain::CreateMakeMessage(
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creation_message,
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model_file,
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directories
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)
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)
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{
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return false;
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}
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creation_message->classToCreate = RegisteredClass::DoorFrameClassID;
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creation_message->instanceFlags =
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MasterInstance|DynamicFlag|MapFlag|TrappedFlag;
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return true;
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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DoorFrame::~DoorFrame()
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{
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}
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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//
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ResourceDescription::ResourceID
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DoorFrame::CreateSubsystemStream(
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ResourceFile *resource_file,
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const char *model_name,
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NotationFile *model_file,
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const ResourceDirectories *directories
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)
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{
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Check(resource_file);
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Check_Pointer(model_name);
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Check(model_file);
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Check_Pointer(directories);
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//
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//-------------------
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// Find the .sub file
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//-------------------
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//
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const char* entry_data;
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if (
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!model_file->GetEntry(
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"gamedata",
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"Subsystems",
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&entry_data
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)
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)
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{
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std::cerr << model_name << " is missing .sub file specification!\n";
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return -1;
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}
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char *sub_filename = MakePathedFilename(directories->modelDirectory, entry_data);
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Register_Pointer(sub_filename);
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NotationFile *sub_file = new NotationFile(sub_filename);
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Register_Object(sub_file);
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NameList *sub_namelist = sub_file->MakePageList();
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Register_Object(sub_namelist);
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int subsystem_count = sub_file->PageCount();
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if (!subsystem_count)
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{
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std::cerr << sub_filename << " empty of missing!\n";
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Dump_And_Die:
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Unregister_Pointer(sub_filename);
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delete sub_filename;
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Unregister_Object(sub_file);
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delete sub_file;
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Unregister_Object(sub_namelist);
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delete sub_namelist;
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return -1;
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}
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int buf_size =
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subsystem_count * sizeof(Door::SubsystemResource) + sizeof(int);
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char *buffer = new char[buf_size];
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Register_Pointer(buffer);
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MemoryStream subsystem_stream(buffer, buf_size);
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*(int*)subsystem_stream.GetPointer() = subsystem_count;
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subsystem_stream.AdvancePointer(sizeof(int));
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NameList::Entry *sub_entry = sub_namelist->GetFirstEntry();
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while(sub_entry)
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{
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char subsystem_name[32];
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Str_Copy(subsystem_name, sub_entry->GetName(), sizeof(subsystem_name));
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const char *sub_type;
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if(!sub_file->GetEntry(
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subsystem_name,
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"Type",
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&sub_type
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)
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)
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{
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std::cerr << model_name << ':' << subsystem_name << " missing Type!\n";
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Dump_And_Die_2:
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Unregister_Pointer(buffer);
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delete[] buffer;
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goto Dump_And_Die;
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}
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Subsystem::SubsystemResource *sub_res =
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(Subsystem::SubsystemResource*)subsystem_stream.GetPointer();
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if (!strcmp(sub_type, "DoorClassID"))
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{
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if (
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Door::CreateStreamedSubsystem(
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model_file,
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model_name,
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subsystem_name,
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(Door::SubsystemResource*)sub_res,
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sub_file,
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directories,
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resource_file
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) == -1
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)
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{
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goto Dump_And_Die_2;
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}
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}
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else
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{
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std::cerr << model_name << ':' << subsystem_name
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<< " has an unknown component type of " << sub_type << std::endl;
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goto Dump_And_Die_2;
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}
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subsystem_stream.AdvancePointer(sub_res->subsystemModelSize);
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sub_entry = sub_entry->GetNextEntry();
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}
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ResourceDescription *res_desc = resource_file->
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ResourceFile::AddResourceMemoryStream(
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model_name,
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ResourceDescription::SubsystemModelStreamResourceType,
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1,
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ResourceDescription::Preload,
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&subsystem_stream
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);
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ResourceDescription::ResourceID res_id;
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if(!res_desc)
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{
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res_id = ResourceDescription::NullResourceID;
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}
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else
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{
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res_id = res_desc->resourceID;
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}
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Unregister_Pointer(sub_filename);
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delete sub_filename;
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Unregister_Object(sub_file);
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delete sub_file;
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Unregister_Object(sub_namelist);
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delete sub_namelist;
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Unregister_Pointer(buffer);
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delete[] buffer;
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return res_id;
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}
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