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Paradise/code/modules/pooling/pool.dm
2015-10-08 14:18:40 -04:00

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/*
/tg/station13 /datum Pool:
---------------------------------
By RemieRichards
Creation/Deletion is laggy, so let's reduce reuse and recycle!
Usage:
To get a object, just call
- PoolOrNew(type, arg) if you only want to pass one argument to New(), usually loc
- PoolOrNew(type, list) if you want to pass multiple arguments to New()
To put a object back in the pool, call PlaceInPool(object)
This will call destroy on the object, set its loc to null,
and reset all of its vars to their default
You can override your object's destroy to return QDEL_HINT_PUTINPOOL
to ensure its always placed in this pool (this will only be acted on if qdel calls destroy, and destroy will not get called twice)
*/
var/global/list/GlobalPool = list()
//You'll be using this proc 90% of the time.
//It grabs a type from the pool if it can
//And if it can't, it creates one
//The pool is flexible and will expand to fit
//The new created atom when it eventually
//Goes into the pool
//Second argument can be a single arg
//Or a list of arguments
//Either way it gets passed to new
/proc/PoolOrNew(get_type,second_arg)
if(!get_type)
return
. = GetFromPool(get_type,second_arg)
if(!.)
if(ispath(get_type))
if(islist(second_arg))
. = new get_type (arglist(second_arg))
else
. = new get_type (second_arg)
/proc/GetFromPool(get_type,second_arg)
if(!get_type)
return
if(isnull(GlobalPool[get_type]))
return
if(length(GlobalPool[get_type]) == 0)
return
var/datum/pooled = pop(GlobalPool[get_type])
if(pooled)
var/atom/movable/AM
if(istype(pooled, /atom/movable))
AM = pooled
if(islist(second_arg))
if(AM)
AM.loc = second_arg[1] //we need to do loc setting explicetly before even calling New() to replicate new()'s behavior
pooled.New(arglist(second_arg))
else
if(AM)
AM.loc = second_arg
pooled.New(second_arg)
return pooled
/proc/PlaceInPool(datum/diver, destroy = 1)
if(!istype(diver))
return
if(diver in GlobalPool[diver.type])
return
if(!GlobalPool[diver.type])
GlobalPool[diver.type] = list()
GlobalPool[diver.type] |= diver
if (destroy)
diver.Destroy()
diver.ResetVars()
/datum/proc/ResetVars()
var/list/excluded = list("animate_movement", "contents", "loc", "locs", "parent_type", "vars", "verbs", "type")
for(var/V in vars)
if(V in excluded)
continue
vars[V] = initial(vars[V])
/atom/movable/ResetVars()
..()
loc = null
contents = initial(contents) //something is really wrong if this object still has stuff in it by this point
/image/ResetVars()
..()
loc = null