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DoomGame

Flow control methods

Buttons settings methods

GameVariables methods

Game Arguments methods

Rewards methods

General game configuration methods

Output/rendering setting methods

Flow control methods:

init

C++ bool init()
Python bool init()

Initializes ViZDoom game instance and starts newEpisode. After calling this method, the first state from a new episode will be available. Some configuration options cannot be changed after calling this method. Init returns true when the game was started properly and false otherwise.

close

C++ void close()
Python void close()

Closes ViZDoom game instance. It is automatically invoked by the destructor. The game can be initialized again after being closed.

newEpisode

C++ void newEpisode(std::string recordFilePath = "")
Python void new_episode(str recordFilePath = "")

Changed in 1.1.0

Initializes a new episode. All rewards, variables and state are restarted. After calling this method, the first state from the new episode will be available. If the recordFilePath is not empty, the new episode will be recorded to this file (as a Doom lump).

In a multiplayer game, the host can call this method to finish the game. Then the rest of the players must also call this method to start a new episode.

replayEpisode

C++ void replayEpisode(std::string filePath, unsigned int player = 0)
Python void replay_episode(str filePath, int player = 0)

Added in 1.1.0

Replays recorded episode from the given file and using the perspective of the specified player. Players are numbered from 1, player equal to 0 results in replaying demo using the perspective of default player in the recording file. After calling this method, the first state from replay will be available. All rewards, variables and state are available during replaying episode.

See also:

isRunning

C++ bool isRunning()
Python bool is_running()

Checks if the ViZDoom game instance is running.

isMultiplayerGame

C++ bool isMultiplayerGame()
Python bool is_multiplayer_game()

Added in 1.1.2

Checks if the game is in multiplayer mode.

isRecordingEpisode

C++ bool isRecordingEpisode()
Python bool is_recording_episode()

Added in 1.1.5

Checks if the game is in recording mode.

isReplayingEpisode

C++ bool isReplayingEpisode()
Python bool is_replaying_episode()

Added in 1.1.5

Checks if the game is in replaying mode.

setAction

C++ void setAction(std::vector<double> const &actions)
Python void set_action(list actions)

Sets the player's action for the next tics. Each value corresponds to a button specified with addAvailableButton method or in the configuration file (in order of appearance).

advanceAction

C++ void advanceAction(unsigned int tics = 1, bool updateState = true)
Python void advance_action(int tics = 1, bool updateState = True)

Processes a specified number of tics. If updateState is set the state will be updated after last processed tic and a new reward will be calculated. To get new state use getState and to get the new reward use getLastReward. If updateState is not set the state will not be updated.

makeAction

C++ double makeAction(std::vector<double> const &actions, unsigned int tics = 1)
Python float make_action(list actions, int tics = 1)

Method combining usability of setAction, advanceAction and getLastReward. Sets the player's action for the next tics, processes a specified number of tics, updates the state and calculates a new reward, which is returned.

isNewEpisode

C++ bool isNewEpisode()
Python bool is_new_episode()

Returns true if the current episode is in the initial state - the first state, no actions were performed yet.

isEpisodeFinished

C++ bool isEpisodeFinished()
Python bool is_episode_finished()

Returns true if the current episode is in the terminal state (is finished). makeAction and advanceAction methods will take no effect after this point (unless newEpisode method is called).

isPlayerDead

C++ bool isPlayerDead()
Python bool is_player_dead()

Returns true if the player is dead. In singleplayer, player death is equivalent to the end of the episode. In multiplayer, when the player is dead respawnPlayer method can be called.

respawnPlayer

C++ void respawnPlayer()
Python void respawn_player()

This method respawns the player after death in multiplayer mode. After calling this method, the first state after the respawn will be available.

See also:

sendGameCommand

C++ void sendGameCommand(std::string cmd)
Python void send_game_command(str cmd)

Sends the command to Doom console. It can be used for controlling the game, changing settings, cheats, etc. Some commands will be blocked in some modes.

See also:

getState

C++ GameStatePtr (std::shared_ptr<GameState>) GameState getState()
Python GameState get_state()

Changed in 1.1.0

Returns GameState object with the current game state. If the current episode is finished, nullptr/null/None will be returned.

See also:

getServerState

C++ ServerStatePtr (std::shared_ptr<ServerState>) ServerState getServerState()
Python ServerState get_state_state()

Added in 1.1.6

Returns ServerState object with the current server state.

See also:

getLastAction

C++ std::vector<double> getLastAction()
Python list get_last_action()

Returns the last action performed. Each value corresponds to a button added with [addAvailableButton](#addAvailableButton) (in order of appearance). Most useful in SPECTATOR mode.

getEpisodeTime

C++ unsigned int getEpisodeTime()
Python int get_episode_time()

Returns number of current episode tic.

save

C++ void save(std::string filePath)
Python void save(str filePath)

Added in 1.1.9

Saves current game state to the file.

load

C++ void load(std::string filePath)
Python void load(str filePath)

Added in 1.1.9

Loads game state from the file. A new state is available after loading. Loading the game state does not reset the current episode state, tic counter/time and total reward state keep their values.

Buttons settings methods

getAvailableButtons

C++ std::vector<Button> getAvailableButtons()
Python list get_available_buttons()

Returns the list of available Buttons.

See also:

setAvailableButtons

C++ void setAvailableButtons(std::vector<Button> buttons)
Python void add_available_button(list)

Set given list of Buttons (e.g. TURN_LEFT, MOVE_FORWARD) as available Buttons,

Config key: availableButtons/available_buttons (list)

See also:

addAvailableButton

C++ void addAvailableButton(Button button, double maxValue = 0)
Python void add_available_button(Button button, float maxValue = 0)

Add Button type (e.g. TURN_LEFT, MOVE_FORWARD) to available Buttons and sets the maximum allowed, absolute value for the specified button. If the given button has already been added, it will not be added again, but the maximum value is overridden.

Config key: availableButtons/available_buttons (list)

See also:

clearAvailableButtons

C++ void clearAvailableButtons()
Python void clear_available_buttons()

Clears all available Buttons added so far.

See also:

getAvailableButtonsSize

C++ int getAvailableButtonsSize()
Python int get_available_buttons_size()

Returns the number of available Buttons.

See also:

setButtonMaxValue

C++ void setButtonMaxValue(Button button, double maxValue = 0)
Python void set_button_max_value(Button button, float maxValue = 0)

Sets the maximum allowed, absolute value for the specified button. Setting the maximum value to 0 results in no constraint at all (infinity). This method makes sense only for delta buttons. Constraints limit applies in all Modes.

See also:

getButtonMaxValue

C++ unsigned int getButtonMaxValue(Button button)
Python int get_button_max_value(Button button)

Returns the maximum allowed, absolute value for the specified button.

See also:

getButton

C++ double getButton(Button button)
Python float get_button(Button button)

Returns the current state of the specified button (ATTACK, USE etc.).

See also:

GameVariables methods

getAvailableGameVariable

C++ std::vector<GameVariable> getAvailableGameVariables()
Python list get_available_game_variables()

Returns the list of available GameVariables.

See also:

setAvailableGameVariables

C++ void setAvailableGameVariables(std::vector<GameVariable> variables)
Python void set_available_game_variables(list variables)

Set list of GameVariable as available GameVariables in the GameState returned by getState method.

Config key: availableGameVariables/available_game_variables (list)

See also:

addAvailableGameVariable

C++ void addAvailableGameVariable(GameVariable variable)
Python void add_available_game_variable(GameVariable variable)

Adds the specified GameVariable to the list of available game variables (e.g. HEALTH, AMMO1, ATTACK_READY) in the GameState returned by getState method.

Config key: availableGameVariables/available_game_variables (list)

See also:

clearAvailableGameVariables

C++ void clearAvailableGameVariables()
Python void clear_available_game_variables()

Clears the list of available GameVariables that are included in the GameState returned by getState method.

See also:

getAvailableGameVariablesSize

C++ unsigned int getAvailableGameVariablesSize()
Python int get_available_game_variables_size()

Returns the number of available GameVariables.

See also:

getGameVariable

C++ double getGameVariable(GameVariable variable)
Python float get_game_variable(GameVariable variable)

Returns the current value of the specified game variable (HEALTH, AMMO1 etc.). The specified game variable does not need to be among available game variables (included in the state). It could be used for e.g. shaping. Returns 0 in case of not finding given GameVariable.

See also:

Game Arguments methods

addGameArgs

C++ void addGameArgs(std::string args)
Python void add_game_args(str args)

Adds a custom argument that will be passed to ViZDoom process during initialization. Useful for changing additional game settings.

Config key: gameArgs/game_args

See also:

clearGameArgs

C++ void clearGameArgs()
Python void clear_game_args()

Clears all arguments previously added with addGameArgs method.

Reward methods

getLivingReward

C++ double getLivingReward()
Python double get_living_reward()

Returns the reward granted to the player after every tic.

setLivingReward

C++ void setLivingReward(double livingReward)
Python void set_living_reward(float livingReward)

Sets the reward granted to the player after every tic. A negative value is also allowed.

Default value: 0

Config key: livingReward/living_reward

getDeathPenalty

C++ double getDeathPenalty()
Python double get_death_penalty()

Returns the penalty for player's death.

setDeathPenalty

C++ void setDeathPenalty(double deathPenalty)
Python void set_death_penalty(float deathPenalty)

Sets a penalty for player's death. Note that in case of a negative value, the player will be rewarded upon dying.

Default value: 0

Config key: deathPenalty/death_penalty

getLastReward

C++ double getLastReward()
Python float get_last_reward()

Returns a reward granted after the last update of state.

getTotalReward

C++ double getTotalReward()
Python float get_total_reward()

Returns the sum of all rewards gathered in the current episode.

General game setting methods

loadConfig

C++ bool loadConfig(std::string filePath)
Python bool load_config(str filePath)

Loads configuration (resolution, available buttons, game variables etc.) from a configuration file. In case of multiple invocations, older configurations will be overwritten by the recent ones. Overwriting does not involve resetting to default values. Thus only overlapping parameters will be changed. The method returns true if the whole configuration file was correctly read and applied, false if the file contained errors.

See also:

getMode

C++ Mode getMode()
Python Mode get_mode()

Returns current mode.

setMode

C++ void setMode(Mode mode)
Python void set_mode(Mode mode)

Sets mode (PLAYER, SPECTATOR, ASYNC_PLAYER, ASYNC_SPECTATOR) in which the game will be running.

Default value: PLAYER.

Config key: mode

See also:

getTicrate

C++ unsigned int getTicrate()
Python int get_ticrate()

Added in 1.1.0

Returns current ticrate.

setTicrate

C++ void setTicrate(unsigned int ticrate)
Python void set_ticrate(int ticrate)

Added in 1.1.0

Sets ticrate for ASNYC Modes - number of logic tics executed per second. Default Doom ticrate is 35. This value will play a game at normal speed.

Default value: 35 (default Doom ticrate).

Config key: ticrate

See also:

setViZDoomPath

C++ void setViZDoomPath(std::string filePath)
Python void set_vizdoom_path(str filePath)

Sets path to ViZDoom engine executable.

Default value: "$VIZDOOM.SO_LOCATION/vizdoom", "vizdoom.exe" on Windows.

Config key: ViZDoomPath/vizdoom_path

setDoomGamePath

C++ void setDoomGamePath(std::string filePath)
Python void set_doom_game_path(str filePath)

Sets path to the Doom engine based game file (wad format). If not used DoomGame will look for doom2.wad and freedoom2.wad (in that order) in the directory of ViZDoom's installation (where vizdoom.so is).

Default value: "$VIZDOOM.SO_LOCATION/{doom2.wad or freedoom2.wad}"

Config key: DoomGamePath/doom_game_path

setDoomScenarioPath

C++ void setDoomScenarioPath(std::string filePath)
Python void set_doom_scenario_path(str filePath)

Sets path to additional scenario file (wad format).

Default value: ""

Config key: DoomScenarioPath/set_doom_scenario_path

setDoomMap

C++ void setDoomMap(std::string map)
Python void set_doom_map(str map)

Sets the map name to be used.

Default value: "map01", if set to empty "map01" will be used.

Config key: DoomMap/doom_map

setDoomSkill

C++ void setDoomSkill(int skill)
Python void set_doom_skill(int skill)

Sets Doom game difficulty level which is called skill in Doom. The higher is the skill, the harder the game becomes. Skill level affects monsters' aggressiveness, monsters' speed, weapon damage, ammunition quantities etc. Takes effect from the next episode.

  • 1 - VERY EASY, “I'm Too Young to Die” in Doom.
  • 2 - EASY, “Hey, Not Too Rough" in Doom.
  • 3 - NORMAL, “Hurt Me Plenty” in Doom.
  • 4 - HARD, “Ultra-Violence” in Doom.
  • 5 - VERY HARD, “Nightmare!” in Doom.

Default value: 3

Config key: DoomSkill/doom_skill

setDoomConfigPath

C++ void setDoomConfigPath(std::string filePath)
Python void set_doom_config_path(str filePath)

Sets path for ViZDoom engine configuration file. The file is responsible for configuration of Doom engine itself. If it does not exist, it will be created after vizdoom executable is run. This method is not needed for most of the tasks and is added for convenience of users with hacking tendencies.

Default value: "", if left empty "_vizdoom.ini" will be used.

Config key: DoomConfigPath/doom_config_path

getSeed

C++ unsigned int getSeed()
Python int getSeed()

Return ViZDoom's seed.

setSeed

C++ void setSeed(unsigned int seed)
Python void set_seed(int seed)

Sets the seed of the ViZDoom's RNG that generates seeds (initial state) for episodes.

Default value: randomized in constructor

Config key: seed

See also:

getEpisodeStartTime

C++ unsigned int getEpisodeStartTime()
Python int get_episode_start_time()

Returns start delay of every episode in tics.

setEpisodeStartTime

C++ void setEpisodeStartTime(unsigned int tics)
Python void set_episode_start_time(int tics)

Sets start delay of every episode in tics. Every episode will effectively start (from the user's perspective) after given number of tics.

Default value: 1

Config key: episodeStartTime/episode_start_time

getEpisodeTimeout

C++ unsigned int getEpisodeTimeout()
Python int get_episode_timeout()

Returns the number of tics after which the episode will be finished.

setEpisodeTimeout

C++ void setEpisodeTimeout(unsigned int tics)
Python void set_episode_timeout(int tics)

Sets the number of tics after which the episode will be finished. 0 will result in no timeout.

Config key: episodeTimeout/episode_timeout

Output/rendering setting methods

setScreenResolution

C++ void setScreenResolution(ScreenResolution resolution)
Python void set_screen_resolution(ScreenResolution resolution)

Sets the screen resolution. ZDoom engine supports only specific resolutions, supported resolutions are part of ScreenResolution enumeration (e.g. RES_320X240, RES_640X480, RES_1920X1080). The buffers, as well as the content of ViZDoom's display window, will be affected.

Default value: RES_320X240

Config key: screenResolution/screen_resolution

See also:

getScreenFormat

C++ ScreenFormat getScreenFormat()
Python ScreenFormat get_screen_format()

Returns the format of the screen buffer and the automap buffer.

setScreenFormat

C++ void setScreenFormat(ScreenFormat format)
Python void set_screen_format(ScreenFormat format)

Sets the format of the screen buffer and the automap buffer. Supported formats are defined in ScreenFormat enumeration type (e.g. CRCGCB, RGB24, GRAY8). The format change affects only the buffers, so it will not have any effect on the content of ViZDoom's display window.

Default value: CRCGCB

Config key: screenFormat/screen_format

See also:

isDepthBufferEnabled

C++ bool isDepthBufferEnabled()
Python bool isDepthBufferEnabled()

Added in 1.1.0

Returns true if the depth buffer is enabled.

setDepthBufferEnabled

C++ void setDepthBufferEnabled(bool depthBuffer)
Python void set_depth_buffer_enabled(bool depthBuffer)

Added in 1.1.0

Enables rendering of the depth buffer, it will be available in the state. Depth buffer will contain noise if viz_nocheat is enabled.

Default value: false

Config key: depthBufferEnabled/depth_buffer_enabled

See also:

isLabelsBufferEnabled

C++ bool isLabelsBufferEnabled()
Python bool isLabelsBufferEnabled()

Added in 1.1.0

Returns true if the labels buffer is enabled.

setLabelsBufferEnabled

C++ void setLabelsBufferEnabled(bool labelsBuffer)
Python void set_labels_buffer_enabled(bool labelsBuffer)

Added in 1.1.0

Enables rendering of the labels buffer, it will be available in the state with the vector of Labels. LabelsBuffer will contain noise if viz_nocheat is enabled.

Default value: false

Config key: labelsBufferEnabled/labels_buffer_enabled

See also:

isAutomapBufferEnabled

C++ bool isAutomapBufferEnabled()
Python bool is_automap_buffer_enabled()

Added in 1.1.0

Returns true if the automap buffer is enabled.

setAutomapBufferEnabled

C++ void setAutomapBufferEnabled(bool automapBuffer)
Python void set_automap_buffer_enabled(bool automapBuffer)

Added in 1.1.0

Enables rendering of the automap buffer, it will be available in the state.

Default value: false

Config key: automapBufferEnabled/automap_buffer_enabled

See also:

setAutomapMode

C++ void setAutomapMode(AutomapMode mode)
Python void set_automap_mode(AutomapMode mode)

Added in 1.1.0

Sets the automap mode (NORMAL, WHOLE, OBJECTS, OBJECTS_WITH_SIZE), which determines what will be visible on it.

Default value: NORMAL

Config key: automapMode/set_automap_mode

See also:

setAutomapRotate

C++ void setAutomapRotate(bool rotate)
Python void set_automap_rotate(bool rotate)

Added in 1.1.0

Determine if the automap will be rotating with the player. If false, north always will be at the top of the buffer.

Default value: false

Config key: automapRotate/automap_rotate

setAutomapRenderTextures

C++ void setAutomapRenderTextures(bool textures)
Python void set_automap_render_textures(bool textures)

Added in 1.1.0

Determine if the automap will be textured, showing the floor textures.

Default value: true

Config key: automapRenderTextures/automap_render_textures

setRenderHud

C++ void setRenderHud(bool hud)
Python void set_render_hud(bool hud)

Determine if the hud will be rendered in game.

Default value: false

Config key: renderHud/render_hud

setRenderMinimalHud

C++ void setRenderMinimalHud(bool minHud)
Python void set_render_minimal_hud(bool minHud)

Added in 1.1.0

Determine if the minimalistic version of the hud will be rendered instead of the full hud.

Default value: false

Config key: renderMinimalHud/render_minimal_hud

setRenderWeapon

C++ void setRenderWeapon(bool weapon)
Python void set_render_weapon(bool weapon)

Determine if the weapon held by the player will be rendered in game.

Default value: true

Config key: renderWeapon/render_weapon

setRenderCrosshair

C++ void setRenderCrosshair(bool crosshair)
Python void set_render_crosshair(bool crosshair)

Determine if the crosshair will be rendered in game.

Default value: false

Config key: renderCrosshair/render_crosshair

setRenderDecals

C++ void setRenderDecals(bool decals)
Python void set_render_decals(bool decals)

Determine if the decals (marks on the walls) will be rendered in game.

Default value: true

Config key: renderDecals/render_decals

setRenderParticles

C++ void setRenderParticles(bool particles)
Python void set_render_particles(bool particles)

Determine if the particles will be rendered in game.

Default value: true

Config key: renderParticles/render_particles

setRenderEffectsSprites

C++ void setRenderEffectsSprites(bool sprites)
Python void set_render_effects_sprites(bool sprites)

Added in 1.1.0

Determine if some effects sprites (gun puffs, blood splats etc.) will be rendered in game.

Default value: true

Config key: renderEffectsSprites/render_effects_sprites

setRenderMessages

C++ void setRenderMessages(bool messages)
Python void set_render_messages(bool messages)

Added in 1.1.0

Determine if ingame messages (information about pickups, kills etc.) will be rendered in game.

Default value: false

Config key: renderMessages/render_messages

setRenderCorpses

C++ void setRenderCorpses(bool corpses)
Python void set_render_corpsess(bool corpses)

Added in 1.1.0

Determine if actors' corpses will be rendered in game.

Default value: true

Config key: renderCorpses/render_corpses

setRenderScreenFlashes

C++ void setRenderScreenFlashes(bool flashes)
Python void set_render_screen_flashes(bool flashes)

Added in 1.1.3

Determine if the screen flash effect upon taking damage or picking up items will be rendered in game.

Default value: true

Config key: renderScreenFlashes/render_screen_flashes

setRenderAllFrames

C++ void setRenderAllFrames(bool allFrames)
Python void set_render_all_frames(bool all_frames)

Added in 1.1.3

Determine if all frames between states will be rendered (when skip greater than 1 is used). Allows smooth preview but can reduce performance. It only makes sense to use it if the window is visible.

Default value: false

Config key: renderAllFrames/render_all_frames

See also:

setWindowVisible

C++ void setWindowVisible(bool visibility)
Python void set_window_visible(bool visibility)

Determines if ViZDoom's window will be visible. ViZDoom with window disabled can be used on Linux systems without X Server.

Default value: false

Config key: windowVisible/window_visible

setConsoleEnabled

C++ void setConsoleEnabled(bool console)
Python void set_console_enabled(bool console)

Determines if ViZDoom's console output will be enabled.

Default value: false

Config key: consoleEnabled/console_enabled

setSoundEnabled

C++ void setSoundEnabled(bool sound)
Python void set_sound_enabled(bool sound)

Determines if ViZDoom's sound will be played.

Default value: false

Config key: soundEnabled/sound_enabled

getScreenWidth

C++ int getScreenWidth()
Python int get_screen_width()

Returns game's screen width - width of all buffers.

getScreenHeight

C++ int getScreenHeight()
Python int get_screen_height()

Returns game's screen height - height of all buffers.

getScreenChannels

C++ int getScreenChannels()
Python int get_screen_channels()

Returns number of channels in screen buffer and map buffer (depth and labels buffer always have one channel).

getScreenPitch

C++ size_t getScreenPitch()
Python int get_screen_pitch()

Returns size in bytes of one row in screen buffer and map buffer.

getScreenSize

C++ size_t getScreenSize()
Python int get_screen_size()

Returns size in bytes of screen buffer and map buffer.

isObjectsInfoEnabled

C++ bool isAutomapBufferEnabled()
Python bool isAutomapBufferEnabled()

Added in 1.1.8

Returns true if the objects information is enabled.

setObjectsInfoEnabled

C++ void setObjectsInfoEnabled(bool objectsInfo)
Python void set_objects_info_enabled(bool objectsInfo)

Added in 1.1.8

Enables information about all objects present in current episode/level, it will be available in the state.

Default value: false

Config key: objectsInfoEnabled/objects_info_enabled

See also:

isSectorsInfoEnabled

C++ bool isSectorsInfoEnabled()
Python bool is_sectors_info_enabled()

Added in 1.1.8

Returns true if the sectors information is enabled.

setSectorsInfoEnabled

C++ void setSectorsInfoEnabled(bool sectorsInfo)
Python void set_sectors_info_enabled(bool sectorsInfo)

Added in 1.1.8

Enables information about all sectors (map layout) present in current episode/level, it will be available in the state.

Default value: false

Config key: sectorsInfoEnabled/sectors_info_enabled

See also:

isAudioBufferEnabled

C++ bool isAudioBufferEnabled()
Python bool is_audio_buffer_enabled()

Added in 1.1.9

Returns true if the audio buffer is enabled.

setSectorsInfoEnabled

C++ void setAudioBufferEnabled(bool audioBuffer)
Python void set_audio_buffer_enabled(bool audioBuffer)

Added in 1.1.9

Returns true if the audio buffer is enabled.

Default value: false

Config key: audioBufferEnabled/audio_buffer_enabled

See also:

getAudioSamplingRate

C++ SamplingRate getAudioSamplingRate()
Python SamplingRate get_audio_sampling_rate()

Added in 1.1.9

Returns the sampling rate of audio buffer.

See also:

setAudioSamplingRate

C++ void setAudioSamplingRate(SamplingRate samplingRate)
Python void set_audio_sampling_rate(SamplingRate samplingRate)

Added in 1.1.9

Sets the sampling rate of audio buffer.

Default value: false

Config key: audioSamplingRate/audio_samping_rate

See also:

getAudioBufferSize

C++ int getAudioBufferSize()
Python int get_audio_buffer_size()

Added in 1.1.9

Returns the size of audio buffer.

See also:

setAudioBufferSize

C++ void setAudioBufferSize(int size)
Python void set_audio_buffer_size(int size)

Added in 1.1.9

Sets the size of audio buffer. Size is defined in number of logic tics. After each action audio buffer will contain audio from specified number of last processed tics. Doom uses 35 ticks per second.

Default value: 4

Config key: audioBufferSize/audio_buffer_size

See also: