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S.P.L.U.R.T-Station-13/code/datums/components/knockoff.dm
2018-04-25 05:54:41 -05:00

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//Items with these will have a chance to get knocked off when disarming
/datum/component/knockoff
var/knockoff_chance = 100 //Chance to knockoff
var/list/target_zones //Aiming for these zones will cause the knockoff, null means all zones allowed
var/list/slots_knockoffable //Can be only knocked off from these slots, null means all slots allowed
var/datum/component/redirect/disarm_redirect
/datum/component/knockoff/Initialize(knockoff_chance,zone_override,slots_knockoffable)
if(!isitem(parent))
return COMPONENT_INCOMPATIBLE
RegisterSignal(COMSIG_ITEM_EQUIPPED,.proc/OnEquipped)
RegisterSignal(COMSIG_ITEM_DROPPED,.proc/OnDropped)
src.knockoff_chance = knockoff_chance
if(zone_override)
target_zones = zone_override
if(slots_knockoffable)
src.slots_knockoffable = slots_knockoffable
/datum/component/knockoff/proc/Knockoff(mob/living/attacker,zone)
var/obj/item/I = parent
var/mob/living/carbon/human/wearer = I.loc
if(!istype(wearer))
return
if(target_zones && !(zone in target_zones))
return
if(!prob(knockoff_chance))
return
if(!wearer.dropItemToGround(I))
return
wearer.visible_message("<span class='warning'>[attacker] knocks off [wearer]'s [I.name]!</span>","<span class='userdanger'>[attacker] knocks off your [I.name]!</span>")
/datum/component/knockoff/proc/OnEquipped(mob/living/carbon/human/H,slot)
if(!istype(H))
return
if(slots_knockoffable && !(slot in slots_knockoffable))
if(disarm_redirect)
QDEL_NULL(disarm_redirect)
return
if(!disarm_redirect)
disarm_redirect = H.AddComponent(/datum/component/redirect,list(COMSIG_HUMAN_DISARM_HIT),CALLBACK(src,.proc/Knockoff))
/datum/component/knockoff/proc/OnDropped(mob/living/M)
if(disarm_redirect)
QDEL_NULL(disarm_redirect)
/datum/component/knockoff/Destroy()
QDEL_NULL(disarm_redirect)
. = ..()