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ed0999e4ea
## About The Pull Request You shouldn't ever qdel a callback. If you don't want to own it free your ref (remove it from a list/set it to null). When all refs are cleared it'll get cleaned up by byond itself
50 lines
1.2 KiB
Plaintext
50 lines
1.2 KiB
Plaintext
/*
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* WARRANTY VOID IF CODE USED
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*/
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/datum/events
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var/list/events
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/datum/events/New()
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..()
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events = new
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/datum/events/Destroy()
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events = null
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return ..()
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/datum/events/proc/addEventType(event_type as text)
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if(!(event_type in events) || !islist(events[event_type]))
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events[event_type] = list()
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return TRUE
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return FALSE
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/// Arguments: event_type as text, proc_holder as datum, proc_name as text
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/// Returns: New event, null on error.
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/datum/events/proc/addEvent(event_type as text, datum/callback/cb)
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if(!event_type || !cb)
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return
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addEventType(event_type)
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var/list/event = events[event_type]
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event += cb
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return cb
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/// Arguments: event_type as text, any number of additional arguments to pass to event handler
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/// Returns: null
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/datum/events/proc/fireEvent(eventName, ...)
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var/list/event = LAZYACCESS(events,eventName)
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if(istype(event))
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for(var/E in event)
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var/datum/callback/cb = E
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cb.InvokeAsync(arglist(args.Copy(2)))
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/// Arguments: event_type as text, E as /datum/event
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/// Returns: TRUE if event cleared, FALSE on error
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/datum/events/proc/clearEvent(event_type as text, datum/callback/cb)
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if(!event_type || !cb)
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return FALSE
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var/list/event = LAZYACCESS(events,event_type)
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event -= cb
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return TRUE
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