Inheritance diagram for M4::M4Engine:

Public Types
enum	LoadDialogSource { kLoadFromMainMenu, kLoadFromGameDialog, kLoadFromHotkey }

Public Types inherited from Engine
enum	EngineFeature { kSupportsSubtitleOptions, kSupportsReturnToLauncher, kSupportsLoadingDuringRuntime, kSupportsSavingDuringRuntime, kSupportsChangingOptionsDuringRuntime, kSupportsArbitraryResolutions, kSupportsHelp, kSupportsQuitDialogOverride }

Public Member Functions
	M4Engine (OSystem syst, const M4GameDescription gameDesc)

uint32	getFeatures () const

bool	useOriginalSaveLoad () const

Common::String	getGameId () const

int	getGameType () const

Common::Language	getLanguage () const

int	isDemo () const

uint32	getRandomNumber (uint maxNum)

bool	hasFeature (EngineFeature f) const override

bool	canLoadGameStateCurrently (Common::U32String *msg=nullptr) override

bool	canSaveGameStateCurrently (Common::U32String *msg=nullptr) override

void	syncSoundSettings () override

Common::Error	loadGameState (int slot) override

Common::Error	loadGameStateDoIt (int slot)

Common::Error	syncGame (Common::Serializer &s)

virtual void	syncFlags (Common::Serializer &s)=0

Common::Error	saveGameStream (Common::WriteStream *stream, bool isAutosave=false) override

Common::Error	loadGameStream (Common::SeekableReadStream *stream) override

bool	autosaveExists () const

bool	savesExist () const

SaveStateList	listSaves () const

bool	loadSaveThumbnail (int slotNum, M4sprite *thumbnail) const

bool	saveGameFromMenu (int slotNum, const Common::String &desc, Graphics::Surface &thumbnail)

virtual void	showSaveScreen ()

virtual void	showLoadScreen (LoadDialogSource fromMainMenu)

virtual void	showEngineInfo ()=0

Public Member Functions inherited from Engine
MetaEngine *	getMetaEngine () const

void	setMetaEngine (MetaEngine *metaEngine)

PauseToken	pauseEngine ()

bool	isPaused () const

void	openMainMenuDialog ()

uint32	getTotalPlayTime () const

void	setTotalPlayTime (uint32 time=0)

Common::TimerManager *	getTimerManager ()

Common::EventManager *	getEventManager ()

Common::SaveFileManager *	getSaveFileManager ()

bool	existExtractedCDAudioFiles (uint track=1)

bool	isDataAndCDAudioReadFromSameCD ()

void	warnMissingExtractedCDAudio ()

void	handleAutoSave ()

void	saveAutosaveIfEnabled ()

virtual bool	canSaveAutosaveCurrently ()

virtual int	getAutosaveSlot () const

	Engine (OSystem *syst)

virtual	~Engine ()

virtual void	initializePath (const Common::FSNode &gamePath)

virtual void	errorString (const char buf_input, char buf_output, int buf_output_size)

virtual GUI::Debugger *	getDebugger () final

void	setDebugger (GUI::Debugger *debugger)

GUI::Debugger *	getOrCreateDebugger ()

bool	enhancementEnabled (int32 cls)

virtual void	applyGameSettings ()

virtual void	flipMute ()

virtual Common::String	getSaveStateName (int slot) const

void	setGameToLoadSlot (int slot)

virtual Common::Error	saveGameState (int slot, const Common::String &desc, bool isAutosave=false)

bool	saveGameDialog ()

bool	loadGameDialog ()

Public Member Functions inherited from M4::Sections
void	global_section_constructor ()

void	section_room_constructor ()

void	game_daemon_code ()

void	parse_player_command_now ()

void	section_init ()

void	daemon ()

void	global_room_init ()

void	tick ()

void	section_parser ()

void	room_preload ()

void	room_init ()

void	room_daemon ()

void	room_pre_parser ()

void	room_parser ()

void	room_error ()

void	room_shutdown ()

HotSpotRec *	custom_hotspot_which (int x, int y)

Room *	getRoom (int room) const

void	m4SceneLoad ()

void	m4RunScene ()

void	m4EndScene ()

void	pal_game_task ()

void	camera_shift_xy (int32 x, int32 y)

void	set_camera_delta_pan (int32 deltaX, int32 deltaY)

void	adv_camera_pan_step (int32 step)

bool	game_camera_panning () const

virtual void	global_daemon ()=0

virtual void	global_pre_parser ()

virtual void	global_parser ()=0

void	global_error_code ()

Protected Member Functions
Common::Error	run () override

virtual Vars *	createVars ()=0

virtual void	setupConsole ()=0

Protected Member Functions inherited from Engine
virtual int	runDialog (GUI::Dialog &dialog)

void	defaultSyncSoundSettings ()

virtual void	pauseEngineIntern (bool pause)

Protected Attributes
bool	_useOriginalSaveLoad = false

Protected Attributes inherited from Engine
Common::TimerManager *	_timer

Common::EventManager *	_eventMan

Common::SaveFileManager *	_saveFileMan

GUI::Dialog *	_mainMenuDialog

const Common::String	_targetName

int32	_activeEnhancements = kEnhGameBreakingBugFixes

Protected Attributes inherited from M4::Sections
Common::Array< Section * >	_sections

Additional Inherited Members
Static Public Member Functions inherited from Engine
static void	quitGame ()

static bool	shouldQuit ()

static bool	warnUserAboutUnsupportedGame (Common::String msg=Common::String())

static void	errorUnsupportedGame (Common::String extraMsg)

Public Attributes inherited from Engine
OSystem *	_system

Audio::Mixer *	_mixer

Public Attributes inherited from M4::Sections
Section *	_activeSection = nullptr

Room *	_activeRoom = nullptr

Member Function Documentation

◆ run()

Common::Error M4::M4Engine::run ( )

overrideprotectedvirtual

Initialize the engine and start its main loop.

Returns: kNoError on success, otherwise an error code.

Implements Engine.

◆ createVars()

virtual Vars* M4::M4Engine::createVars ( )

protectedpure virtual

Creates globals

Implemented in M4::Riddle::RiddleEngine, and M4::Burger::BurgerEngine.

◆ setupConsole()

virtual void M4::M4Engine::setupConsole ( )

protectedpure virtual

Sets up the debugging console

Implemented in M4::Riddle::RiddleEngine, and M4::Burger::BurgerEngine.

◆ getGameId()

Common::String M4::M4Engine::getGameId ( ) const

Returns the game Id

◆ getGameType()

int M4::M4Engine::getGameType ( ) const

Returns the game type

◆ getLanguage()

Common::Language M4::M4Engine::getLanguage ( ) const

Return game language

◆ isDemo()

int M4::M4Engine::isDemo ( ) const

Return if it's a demo

◆ getRandomNumber()

uint32 M4::M4Engine::getRandomNumber ( uint maxNum )

inline

Gets a random number

◆ hasFeature()

bool M4::M4Engine::hasFeature ( EngineFeature f ) const

inlineoverridevirtual

Determine whether the engine supports the specified feature.

Reimplemented from Engine.

◆ canLoadGameStateCurrently()

bool M4::M4Engine::canLoadGameStateCurrently ( Common::U32String * msg = nullptr )

overridevirtual

Indicate whether a game state can be loaded.

Parameters

msg	Optional pointer to message explaining why it is disabled

Reimplemented from Engine.

◆ canSaveGameStateCurrently()

bool M4::M4Engine::canSaveGameStateCurrently ( Common::U32String * msg = nullptr )

overridevirtual

Indicate whether a game state can be saved.

Parameters

msg	Optional pointer to message explaining why it is disabled

Reimplemented from Engine.

◆ syncSoundSettings()

void M4::M4Engine::syncSoundSettings ( )

overridevirtual

Notify the engine that the sound settings in the config manager might have changed and that it should adjust any internal volume (and other) values accordingly.

The default implementation sets the volume levels of all mixer sound types according to the config entries of the active domain. When overwriting, call the default implementation first, then adjust the volumes further (if required).

Note: When setting volume levels, respect the "mute" config entry.; The volume for the plain sound type is reset to the maximum volume. If the engine can associate its own value for this type, it needs to overwrite this member and set it accordingly.

Reimplemented from Engine.

◆ loadGameState()

Common::Error M4::M4Engine::loadGameState ( int slot )

overridevirtual

Load a game state.

Parameters

slot	The slot from which a save state should be loaded.

Returns: kNoError on success, otherwise an error code.

Reimplemented from Engine.

◆ syncGame()

Common::Error M4::M4Engine::syncGame ( Common::Serializer & s )

Uses a serializer to allow implementing savegame loading and saving using a single method

◆ saveGameStream()

Common::Error M4::M4Engine::saveGameStream	(	Common::WriteStream *	stream,
		bool	isAutosave = `false`
	)

overridevirtual

Save a game state.

Parameters

stream	The write stream to save the savegame data to.
isAutosave	Expected to be true if an autosave is being created.

Returns: kNoError on success, otherwise an error code.

Reimplemented from Engine.

◆ loadGameStream()

Common::Error M4::M4Engine::loadGameStream ( Common::SeekableReadStream * stream )

overridevirtual

Load a game state.

Parameters

stream The stream to load the save state from.

Returns: kNoError on success, otherwise an error code.

Reimplemented from Engine.

◆ autosaveExists()

bool M4::M4Engine::autosaveExists ( ) const

Returns true if an autosave exists

◆ savesExist()

bool M4::M4Engine::savesExist ( ) const

Returns true if any saves exist

◆ listSaves()

SaveStateList M4::M4Engine::listSaves ( ) const

Lists the saves

◆ loadSaveThumbnail()

bool M4::M4Engine::loadSaveThumbnail	(	int	slotNum,
		M4sprite *	thumbnail
	)		const

Returns the savegame thumbnail for a save

◆ saveGameFromMenu()

bool M4::M4Engine::saveGameFromMenu	(	int	slotNum,
		const Common::String &	desc,
		Graphics::Surface &	thumbnail
	)

Save game from in-game save menu

◆ showSaveScreen()

virtual void M4::M4Engine::showSaveScreen ( )

virtual

Show save game dialog

Reimplemented in M4::Riddle::RiddleEngine, and M4::Burger::BurgerEngine.

◆ showLoadScreen()

virtual void M4::M4Engine::showLoadScreen ( LoadDialogSource fromMainMenu )

virtual

Show restore game dialog

Reimplemented in M4::Riddle::RiddleEngine, and M4::Burger::BurgerEngine.

◆ showEngineInfo()

virtual void M4::M4Engine::showEngineInfo ( )

pure virtual

Show the engine information

Implemented in M4::Riddle::RiddleEngine, and M4::Burger::BurgerEngine.

The documentation for this class was generated from the following file:

engines/m4/m4.h

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Member Function Documentation

◆ run()

◆ createVars()

◆ setupConsole()

◆ getGameId()

◆ getGameType()

◆ getLanguage()

◆ isDemo()

◆ getRandomNumber()

◆ hasFeature()

◆ canLoadGameStateCurrently()

◆ canSaveGameStateCurrently()

◆ syncSoundSettings()

◆ loadGameState()

◆ syncGame()

◆ saveGameStream()

◆ loadGameStream()

◆ autosaveExists()

◆ savesExist()

◆ listSaves()

◆ loadSaveThumbnail()

◆ saveGameFromMenu()

◆ showSaveScreen()

◆ showLoadScreen()

◆ showEngineInfo()