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OpenMW/docs/source/reference/lua-scripting/events.rst
2023-12-04 17:50:18 +01:00

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Built-in events
===============
.. include:: version.rst
Actor events
------------
**Died**
This event is sent to an actor's local script when that actor dies.
.. code-block:: Lua
eventHandlers = {
Died = function()
print('Alas, ye hardly knew me!')
end
}
**StartAIPackage, RemoveAIPackages**
Any script can send to any actor (except player, for player will be ignored) events ``StartAIPackage`` and ``RemoveAIPackages``.
The effect is equivalent to calling ``interfaces.AI.startPackage`` or ``interfaces.AI.removePackages`` in a local script on this actor.
Examples:
.. code-block:: Lua
actor:sendEvent('StartAIPackage', {type='Combat', target=self.object})
actor:sendEvent('RemoveAIPackages', 'Pursue')
**UseItem**
Any script can send global event ``UseItem`` with arguments ``object``, ``actor``, and optional boolean ``force``.
The actor will use (e.g. equip or consume) the object. The object should be in the actor's inventory.
Example:
.. code-block:: Lua
core.sendGlobalEvent('UseItem', {object = potion, actor = player, force = true})
UI events
---------
**UiModeChanged**
Every time UI mode is changed built-in scripts send to player the event ``UiModeChanged`` with arguments ``oldMode, ``newMode`` (same as ``I.UI.getMode()``)
and ``arg`` (for example in the mode ``Book`` the argument is the book the player is reading).
.. code-block:: Lua
eventHandlers = {
UiModeChanged = function(data)
print('UiModeChanged from', data.oldMode , 'to', data.newMode, '('..tostring(data.arg)..')')
end
}
**AddUiMode**
Equivalent to ``I.UI.addMode``, but can be sent from another object or global script.
.. code-block:: Lua
player:sendEvent('AddUiMode', {mode = 'Book', target = book})
**SetUiMode**
Equivalent to ``I.UI.setMode``, but can be sent from another object or global script.
.. code-block:: Lua
player:sendEvent('SetUiMode', {mode = 'Book', target = book})
World events
------------
Global events that just call the corresponding function in `openmw.world`.
.. code-block:: Lua
-- world.pause(tag)
core.sendGlobalEvent('Pause', tag)
-- world.unpause(tag)
core.sendGlobalEvent('Unpause', tag)
-- world.setGameTimeScale(scale)
core.sendGlobalEvent('SetGameTimeScale', scale)
-- world.setSimulationTimeScale(scale)
core.sendGlobalEvent('SetSimulationTimeScale', scale)