Package openmw.world

OpenMW version: 0.49.0

core.API_REVISION: 59 *

openmw.world is an interface to the game world for global scripts.

Can not be used from local scripts.

Usage:

local world = require('openmw.world')

Type world

world.activeActors	List of currently active actors.
world.cells	List of all cells
world.createObject(recordId, count)	Create a new instance of the given record.
world.createRecord(record)	Creates a custom record in the world database.
world.getCellByName(cellName)	Loads a named cell
world.getExteriorCell(gridX, gridY, cellOrName)	Loads an exterior cell by grid indices
world.getGameTime()	Game time in seconds.
world.getGameTimeScale()	The scale of game time relative to simulation time.
world.getObjectByFormId(formId)	Return an object by RefNum/FormId.
world.getPausedTags()	The tags that are currently pausing the game.
world.getRealFrameDuration()	Frame duration in seconds
world.getSimulationTime()	Simulation time in seconds.
world.getSimulationTimeScale()	The scale of simulation time relative to real time.
world.isWorldPaused()	Whether the world is paused (onUpdate doesn't work when the world is paused).
world.mwscript	Functions related to MWScript (see #MWScriptFunctions).
world.pause(tag)	Pause the game starting from the next frame.
world.players	List of players.
world.setGameTimeScale(ratio)	Set the ratio of game time speed to simulation time speed.
world.setSimulationTimeScale(scale)	Set the simulation time scale.
world.unpause(tag)	Remove given tag from the list of pause tags.

Type MWScript

MWScript.object	The object the script is attached to.
MWScript.player	The player the script refers to.
MWScript.recordId	Id of the script
MWScript.variables	Local variables of the script (mutable)

Type MWScriptFunctions

MWScriptFunctions.getGlobalScript(recordId, player)	Returns global mwscript with given recordId.
MWScriptFunctions.getGlobalVariables(player)	Returns mutable global variables.
MWScriptFunctions.getLocalScript(object, player)	Returns local mwscript on object.

Type world

Field(s)

openmw.core#ObjectList world.activeActors

List of currently active actors.

#list<openmw.core#Cell> world.cells

List of all cells

Usage:

for i, cell in ipairs(world.cells) do print(cell) end

world.createObject(recordId, count)

Create a new instance of the given record.

After creation the object is in the disabled state. Use :teleport to place to the world or :moveInto to put it into a container or an inventory. Note that dynamically created creatures, NPCs, and container inventories will not respawn.

Parameters

• #string recordId : Record ID in lowercase

• #number count : (optional, 1 by default) The number of objects in stack

Return value

openmw.core#GameObject:

Usages:

•  -- put 100 gold on the ground at the position of `actor`
  money = world.createObject('gold_001', 100)
  money:teleport(actor.cell.name, actor.position)

• -- put 50 gold into the actor's inventory
  money = world.createObject('gold_001', 50)
  money:moveInto(types.Actor.inventory(actor))

world.createRecord(record)

Creates a custom record in the world database.

Eventually meant to support all records, but the current set of supported types is limited to:

• openmw.types#PotionRecord,
• openmw.types#ArmorRecord,
• openmw.types#BookRecord,
• openmw.types#MiscellaneousRecord,
• openmw.types#ClothingRecord,
• openmw.types#WeaponRecord,
• openmw.types#ActivatorRecord

Parameter

• #any record : A record to be registered in the database. Must be one of the supported types.

Return value

#any: A new record added to the database. The type is the same as the input's.

world.getCellByName(cellName)

Loads a named cell

Parameter

• #string cellName :

Return value

openmw.core#Cell:

world.getExteriorCell(gridX, gridY, cellOrName)

Loads an exterior cell by grid indices

Parameters

• #number gridX :

• #number gridY :

• #any cellOrName : (optional) other cell or cell name in the same exterior world space

Return value

openmw.core#Cell:

world.getGameTime()

Game time in seconds.

Return value

#number:

world.getGameTimeScale()

The scale of game time relative to simulation time.

Return value

#number:

world.getObjectByFormId(formId)

Return an object by RefNum/FormId.

Note: the function always returns openmw.core#GameObject and doesn't validate that the object exists in the game world. If it doesn't exist or not yet loaded to memory), then obj:isValid() will be false.

Parameter

• #string formId : String returned by core.getFormId

Return value

openmw.core#GameObject:

Usage:

local obj = world.getObjectByFormId(core.getFormId('Morrowind.esm', 128964))

world.getPausedTags()

The tags that are currently pausing the game.

Return value

#table:

world.getRealFrameDuration()

Frame duration in seconds

Return value

#number:

world.getSimulationTime()

Simulation time in seconds.

The number of simulation seconds passed in the game world since starting a new game.

Return value

#number:

world.getSimulationTimeScale()

The scale of simulation time relative to real time.

Return value

#number:

world.isWorldPaused()

Whether the world is paused (onUpdate doesn't work when the world is paused).

Return value

#boolean:

#MWScriptFunctions world.mwscript

Functions related to MWScript (see #MWScriptFunctions).

world.pause(tag)

Pause the game starting from the next frame.

Parameter

• #string tag : (optional, empty string by default) The game will be paused until unpause is called with the same tag.

openmw.core#ObjectList world.players

List of players.

Currently (since multiplayer is not yet implemented) always has one element.

world.setGameTimeScale(ratio)

Set the ratio of game time speed to simulation time speed.

Parameter

• #number ratio :

world.setSimulationTimeScale(scale)

Set the simulation time scale.

Parameter

• #number scale :

world.unpause(tag)

Remove given tag from the list of pause tags.

Resume the game starting from the next frame if the list became empty.

Parameter

• #string tag : (optional, empty string by default) Needed to undo pause called with this tag.

Type MWScript

Usage:

for _, script in ipairs(world.mwscript.getLocalScripts(object)) do
  -- print the value of local variable 'something' (0 if there is no such variable)
  print(script.variables.something)
  -- set the variable 'something' (raises an error if there is no such variable)
  script.variables.something = 5
end

Field(s)

openmw.core#GameObject MWScript.object

The object the script is attached to.

openmw.core#GameObject MWScript.player

The player the script refers to.

#string MWScript.recordId

Id of the script

#MWScriptVariables MWScript.variables

Local variables of the script (mutable)

Type MWScriptFunctions

Functions related to MWScript.

Field(s)

MWScriptFunctions.getGlobalScript(recordId, player)

Returns global mwscript with given recordId.

Returns nil if the script doesn't exist or is not started. Currently there can be only one instance of each mwscript, but in multiplayer it will be possible to have a separate instance per player.

Parameters

• #string recordId :

• openmw.core#GameObject player : (optional) Will be used in multiplayer mode to get the script if there is a separate instance for each player. Currently has no effect.

Return value

#MWScript, #nil:

MWScriptFunctions.getGlobalVariables(player)

Returns mutable global variables.

In multiplayer, these may be specific to the provided player.

Parameter

• openmw.core#GameObject player : (optional) Will be used in multiplayer mode to get the globals if there is a separate instance for each player. Currently has no effect.

Return value

#MWScriptVariables:

MWScriptFunctions.getLocalScript(object, player)

Returns local mwscript on object.

Returns nil if the script doesn't exist or is not started.

Parameters

• openmw.core#GameObject object :

• openmw.core#GameObject player : (optional) Will be used in multiplayer mode to get the script if there is a separate instance for each player. Currently has no effect.

Return value

#MWScript, #nil:

Type MWScriptVariables

MWScriptVariables is a map of #string to #number.