AddEventHandler: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
Line 1: | Line 1: | ||
__NOTOC__ | __NOTOC__ | ||
This | This function will add an [[event]] handler. An event handler is a function that will be called when an event is triggered. See [[event system]] for more information on how the event system works. | ||
==Syntax== | ==Syntax== | ||
<syntaxhighlight lang="lua"> | <syntaxhighlight lang="lua"> | ||
bool addEventHandler ( string | bool addEventHandler ( string eventName, element attachedTo, string functionName ) | ||
</syntaxhighlight> | </syntaxhighlight> | ||
===Required Arguments=== | ===Required Arguments=== | ||
*''' | *'''eventName:''' The name of the event you want to attach the handler function to | ||
*'''attachedTo:''' The [[element]] you wish to attach the handler to. Often this can be the root element. | |||
*'''functionName:''' The name of the function you wish to call. This function should have the correct number of parameters defined for the event you are using. | |||
*''' | |||
*''' | |||
===Returns=== | ===Returns=== | ||
Returns ''true'' if | Returns ''true'' if the event handler was attached successfully. Returns ''false'' if the event specified could not be found or the ''attachedTo'' [[element]] specified is invalid. | ||
==Example== | ==Example== | ||
<syntaxhighlight lang="lua"> | <syntaxhighlight lang="lua"> | ||
-- | -- Get the root map element | ||
rootElement = getRootElement () | |||
-- | -- Add an event handler to the onSpawnPointUse event (triggered when a player spawns) | ||
addEventHandler ( "onSpawnpointUse", rootElement, "spawn" ) | |||
-- Define our handler function | |||
function spawn( thePlayer ) | |||
-- Tell them in the chat box that they've spawned | |||
outputChatBox ( "You've spawned!", thePlayer ) | |||
end | |||
</syntaxhighlight> | </syntaxhighlight> | ||
==See Also== | ==See Also== | ||
{{Event_functions}} | {{Event_functions}} |
Revision as of 23:44, 20 May 2006
This function will add an event handler. An event handler is a function that will be called when an event is triggered. See event system for more information on how the event system works.
Syntax
bool addEventHandler ( string eventName, element attachedTo, string functionName )
Required Arguments
- eventName: The name of the event you want to attach the handler function to
- attachedTo: The element you wish to attach the handler to. Often this can be the root element.
- functionName: The name of the function you wish to call. This function should have the correct number of parameters defined for the event you are using.
Returns
Returns true if the event handler was attached successfully. Returns false if the event specified could not be found or the attachedTo element specified is invalid.
Example
-- Get the root map element rootElement = getRootElement () -- Add an event handler to the onSpawnPointUse event (triggered when a player spawns) addEventHandler ( "onSpawnpointUse", rootElement, "spawn" ) -- Define our handler function function spawn( thePlayer ) -- Tell them in the chat box that they've spawned outputChatBox ( "You've spawned!", thePlayer ) end
See Also
- addEvent
- addEventHandler
- cancelEvent
- cancelLatentEvent
- getEventHandlers
- getLatentEventHandles
- getLatentEventStatus
- removeEventHandler
- triggerEvent
- wasEventCancelled