LSD

Description

.lsd files store static level state used at runtime.

In OpenW3D, SaveGameManager uses .lsd for static world data and pairs it with .ldd (dynamic save data) and .ddb (definitions).

References

• Combat/savegame.h

• Combat/savegame.cpp

• Tools/LevelEdit/Export.cpp

• Commando/modpackage.cpp

• wwsaveload/saveload.cpp

• wwlib/chunkio.h

Specification

Write path

During level export, LevelEdit does:

• SaveGameManager::Set_Map_Filename("<name>.lsd")

• SaveGameManager::Save_Level()

Save_Level writes SaveLoad subsystem chunks to the .lsd file:

• _PhysStaticDataSaveSystem

• _PhysStaticObjectsSaveSystem

• _StaticAudioSaveLoadSubsystem

• _TheBackgroundMgr

• _TheWeatherMgr

• _TheMapMgrSaveLoadSubsystem

Read/load path

Pre_Load_Game resolves file pairing:

• .mix input maps to <root>.ldd plus <root>.lsd.

• .lsd input implies <root>.ldd for dynamic data.

While loading a game:

• .ldd level-info chunk provides map filename.

• Runtime loads <map>.ddb definitions.

• Runtime then loads static level data from .lsd via Load_Level().

Packaging

ModPackageClass::Build_Level_List identifies levels in a package by finding .lsd entries.