/obj/item/pneumatic_cannon
name = "pneumatic cannon"
desc = "A gas-powered cannon that can fire any object loaded into it."
w_class = WEIGHT_CLASS_BULKY
force = 8 //Very heavy
attack_verb = list("bludgeoned", "smashed", "beaten")
icon = 'icons/obj/pneumaticCannon.dmi'
icon_state = "pneumaticCannon"
item_state = "bulldog"
lefthand_file = 'icons/mob/inhands/guns_lefthand.dmi'
righthand_file = 'icons/mob/inhands/guns_righthand.dmi'
armor = list(MELEE = 0, BULLET = 0, LASER = 0, ENERGY = 0, BOMB = 0, RAD = 0, FIRE = 60, ACID = 50)
///The max weight of items that can fit into the cannon
var/max_weight_class = 20
///The weight of items currently in the cannon
var/loaded_weight_class = 0
///The gas tank that is drawn from to fire things
var/obj/item/tank/internals/tank = null
///If the cannon needs a tank at all
var/requires_tank = TRUE
///How many moles of gas is drawn from a tank's pressure to fire
var/gas_per_throw = 3
///The items loaded into the cannon that will be fired out
var/list/loaded_items = list()
///How powerful the cannon is - higher pressure = more gas but more powerful throws
var/pressure_setting = 1
///In case we want a really strong cannon
var/max_pressure_setting = 3
/obj/item/pneumatic_cannon/Destroy()
QDEL_NULL(tank)
QDEL_LIST_CONTENTS(loaded_items)
return ..()
/obj/item/pneumatic_cannon/examine(mob/user)
. = ..()
if(!in_range(user, src))
. += "You'll need to get closer to see any more."
else
if(tank)
. += "[bicon(tank)] It has [tank] mounted onto it."
for(var/obj/item/I in loaded_items)
. += "[bicon(I)] It has [I] loaded."
/**
* Arguments:
* * I - item to load into the cannon
* * user - the person loading the item in
* Returns:
* * True if item was loaded, false if it failed
*/
/obj/item/pneumatic_cannon/proc/load_item(obj/item/I, mob/user)
if((loaded_weight_class + I.w_class) > max_weight_class)
to_chat(user, "[I] won't fit into [src]!")
return FALSE
if(I.w_class > w_class)
to_chat(user, "[I] is too large to fit into [src]!")
return FALSE
if(!user.unEquip(I) || I.flags & (ABSTRACT | NODROP | DROPDEL))
to_chat(user, "You can't put [I] into [src]!")
return FALSE
to_chat(user, "You load [I] into [src].")
loaded_items.Add(I)
loaded_weight_class += I.w_class
I.forceMove(src)
return TRUE
/obj/item/pneumatic_cannon/wrench_act(mob/living/user, obj/item/I)
adjust_setting(user)
return TRUE
/obj/item/pneumatic_cannon/proc/adjust_setting(mob/living/user)
if(pressure_setting == max_pressure_setting)
pressure_setting = 1
else
pressure_setting++
to_chat(user, "You tweak [src]'s pressure output to [pressure_setting].")
/obj/item/pneumatic_cannon/attackby(obj/item/W, mob/user, params)
..()
if(istype(W, /obj/item/tank/internals) && !tank)
if(istype(W, /obj/item/tank/internals/emergency_oxygen))
to_chat(user, "[W] is too small for [src].")
return
add_tank(W, user)
return
if(W.type == type)
to_chat(user, "You're fairly certain that putting a pneumatic cannon inside another pneumatic cannon would cause a spacetime disruption.")
return
load_item(W, user)
/obj/item/pneumatic_cannon/screwdriver_act(mob/living/user, obj/item/I)
remove_tank(user)
return TRUE
/obj/item/pneumatic_cannon/afterattack(atom/target, mob/living/carbon/human/user, flag, params)
if(isstorage(target)) //So you can store it in backpacks
return ..()
if(istype(target, /obj/structure/rack)) //So you can store it on racks
return ..()
if(!istype(user))
return ..()
fire(user, target)
/obj/item/pneumatic_cannon/proc/fire(mob/living/carbon/human/user, atom/target)
if(!istype(user) && !target)
return
var/has_discharged = FALSE
if(!loaded_items || !loaded_weight_class)
to_chat(user, "[src] has nothing loaded.")
return
if(requires_tank)
if(!tank)
to_chat(user, "[src] can't fire without a source of gas.")
return
if(!tank.air_contents.boolean_remove(gas_per_throw * pressure_setting))
to_chat(user, "[src] lets out a weak hiss and doesn't react!")
return
if(user && HAS_TRAIT(user, TRAIT_CLUMSY) && prob(75))
user.visible_message("[user] loses [user.p_their()] grip on [src], causing it to go off!", "[src] slips out of your hands and goes off!")
user.drop_item()
has_discharged = TRUE
if(prob(10))
target = user
else
var/list/possible_targets = range(3,src)
target = pick(possible_targets)
if(!has_discharged)
user.visible_message("[user] fires [src]!", \
"You fire [src]!")
add_attack_logs(user, target, "Fired [src]")
playsound(loc, 'sound/weapons/sonic_jackhammer.ogg', 50, TRUE)
for(var/obj/item/loaded_item in loaded_items)
loaded_items.Remove(loaded_item)
loaded_weight_class -= loaded_item.w_class
loaded_item.throw_speed = pressure_setting * 2
loaded_item.forceMove(get_turf(src))
loaded_item.throw_at(target, pressure_setting * 5, pressure_setting * 2, user)
if(pressure_setting >= 3 && user)
user.visible_message("[user] is thrown down by the force of the cannon!", "[src] slams into your shoulder, knocking you down!")
user.KnockDown(3 SECONDS)
/obj/item/pneumatic_cannon/proc/add_tank(obj/item/tank/new_tank, mob/living/carbon/human/user)
if(tank)
to_chat(user, "[src] already has a tank.")
return
if(!user.unEquip(new_tank))
return
to_chat(user, "You hook [new_tank] up to [src].")
new_tank.forceMove(src)
tank = new_tank
update_icons()
/obj/item/pneumatic_cannon/proc/remove_tank(mob/living/carbon/human/user)
if(!tank)
return FALSE
to_chat(user, "You detach [tank] from [src].")
user.put_in_hands(tank)
tank = null
update_icons()
/obj/item/pneumatic_cannon/proc/update_icons()
src.overlays.Cut()
if(!tank)
return
src.overlays += image('icons/obj/pneumaticCannon.dmi', "[tank.icon_state]")
src.update_icon()
/obj/item/pneumatic_cannon/admin
name = "admin pnuematic cannon"
desc = "Infinite gas and infinite capacity, go crazy."
requires_tank = FALSE
max_weight_class = INFINITY
/// Obtainable by improvised methods; more gas per use, less capacity, but smaller
/obj/item/pneumatic_cannon/ghetto
name = "improvised pneumatic cannon"
desc = "A gas-powered, object-firing cannon made out of common parts."
force = 5
w_class = WEIGHT_CLASS_NORMAL
max_weight_class = 7
gas_per_throw = 5