CHOMPStation2/code/game/objects/items.dm

/obj/item
	name = "item"
	icon = 'icons/obj/items.dmi'
	w_class = ITEMSIZE_NORMAL
	blocks_emissive = EMISSIVE_BLOCK_GENERIC

	//matter = list(MAT_STEEL = 1)

	var/image/blood_overlay = null //this saves our blood splatter overlay, which will be processed not to go over the edges of the sprite
	var/randpixel = 6
	var/abstract = 0
	var/r_speed = 1.0
	var/health = null
	var/burn_point = null
	var/burning = null
	var/hitsound = null
	var/usesound = null // Like hitsound, but for when used properly and not to kill someone.
	var/storage_cost = null
	var/slot_flags = 0		//This is used to determine on which slots an item can fit.
	var/no_attack_log = 0			//If it's an item we don't want to log attack_logs with, set this to 1
	pass_flags = PASSTABLE
	pressure_resistance = 5
//	causeerrorheresoifixthis
	var/obj/item/master = null
	var/list/origin_tech = null	//Used by R&D to determine what research bonuses it grants.
	var/list/attack_verb //Used in attackby() to say how something was attacked "[x] has been [z.attack_verb] by [y] with [z]"
	var/force = 0
	var/can_cleave = FALSE // If true, a 'cleaving' attack will occur.

	var/heat_protection = 0 //flags which determine which body parts are protected from heat. Use the HEAD, UPPER_TORSO, LOWER_TORSO, etc. flags. See setup.dm
	var/cold_protection = 0 //flags which determine which body parts are protected from cold. Use the HEAD, UPPER_TORSO, LOWER_TORSO, etc. flags. See setup.dm
	var/max_heat_protection_temperature //Set this variable to determine up to which temperature (IN KELVIN) the item protects against heat damage. Keep at null to disable protection. Only protects areas set by heat_protection flags
	var/min_cold_protection_temperature //Set this variable to determine down to which temperature (IN KELVIN) the item protects against cold damage. 0 is NOT an acceptable number due to if(varname) tests!! Keep at null to disable protection. Only protects areas set by cold_protection flags

	var/max_pressure_protection // Set this variable if the item protects its wearer against high pressures below an upper bound. Keep at null to disable protection.
	var/min_pressure_protection // Set this variable if the item protects its wearer against low pressures above a lower bound. Keep at null to disable protection. 0 represents protection against hard vacuum.

	var/list/actions //list of /datum/action's that this item has.
	var/list/actions_types //list of paths of action datums to give to the item on New().

	//This flag is used to determine when items in someone's inventory cover others. IE helmets making it so you can't see glasses, etc.
	//It should be used purely for appearance. For gameplay effects caused by items covering body parts, use body_parts_covered.
	var/flags_inv = 0
	var/body_parts_covered = 0 //see setup.dm for appropriate bit flags

	var/item_flags = 0 //Miscellaneous flags pertaining to equippable objects.

	//var/heat_transfer_coefficient = 1 //0 prevents all transfers, 1 is invisible
	var/gas_transfer_coefficient = 1 // for leaking gas from turf to mask and vice-versa (for masks right now, but at some point, i'd like to include space helmets)
	var/permeability_coefficient = 1 // for chemicals/diseases
	var/siemens_coefficient = 1 // for electrical admittance/conductance (electrocution checks and shit)
	var/slowdown = 0 // How much clothing is slowing you down. Negative values speeds you up
	var/canremove = TRUE //Mostly for Ninja code at this point but basically will not allow the item to be removed if set to 0. /N
	var/list/armor = list("melee" = 0, "bullet" = 0, "laser" = 0,"energy" = 0, "bomb" = 0, "bio" = 0, "rad" = 0)
	var/list/armorsoak = list("melee" = 0, "bullet" = 0, "laser" = 0, "energy" = 0, "bomb" = 0, "bio" = 0, "rad" = 0)
	var/list/allowed = null //suit storage stuff.
	var/obj/item/uplink/hidden/hidden_uplink = null // All items can have an uplink hidden inside, just remember to add the triggers.
	var/zoomdevicename = null //name used for message when binoculars/scope is used
	var/zoom = 0 //1 if item is actively being used to zoom. For scoped guns and binoculars.

	var/embed_chance = -1	//0 won't embed, and 100 will always embed

	var/icon_override = null  //Used to override hardcoded clothing dmis in human clothing proc.

	//** These specify item/icon overrides for _slots_

	var/list/item_state_slots //overrides the default item_state for particular slots.

	// Used to specify the icon file to be used when the item is worn. If not set the default icon for that slot will be used.
	// If icon_override or sprite_sheets are set they will take precendence over this, assuming they apply to the slot in question.
	// Only slot_l_hand/slot_r_hand are implemented at the moment. Others to be implemented as needed.
	var/list/item_icons

	//** These specify item/icon overrides for _species_

	/* Species-specific sprites, concept stolen from Paradise//vg/.
	ex:
	sprite_sheets = list(
		SPECIES_TAJARAN = 'icons/cat/are/bad'
		)
	If index term exists and icon_override is not set, this sprite sheet will be used.
	*/
	var/list/sprite_sheets

	// Species-specific sprite sheets for inventory sprites
	// Works similarly to worn sprite_sheets, except the alternate sprites are used when the clothing/refit_for_species() proc is called.
	var/list/sprite_sheets_obj

	var/toolspeed = 1 // This is a multipler on how 'fast' a tool works.  e.g. setting this to 0.5 will make the tool work twice as fast.
	var/attackspeed = DEFAULT_ATTACK_COOLDOWN // How long click delay will be when using this, in 1/10ths of a second. Checked in the user's get_attack_speed().
	var/reach = 1 // Length of tiles it can reach, 1 is adjacent.
	var/addblends // Icon overlay for ADD highlights when applicable.

	var/icon/default_worn_icon	//Default on-mob icon
	var/worn_layer				//Default on-mob layer

	// Pickup/Drop/Equip/Throw Sounds
	///Used when thrown into a mob
	var/mob_throw_hit_sound
	// Sound used when equipping the items into a valid slot.
	var/equip_sound
	// pickup sound - this is the default
	var/pickup_sound = "generic_pickup"
	// drop sound - this is the default
	var/drop_sound = "generic_drop"

	var/tip_timer // reference to timer id for a tooltip we might open soon

	var/no_random_knockdown = FALSE			//stops item from being able to randomly knock people down in combat

	var/rock_climbing = FALSE //If true, allows climbing cliffs using click drag for single Z, walls if multiZ
	var/climbing_delay = 1 //If rock_climbing, lower better.

/obj/item/Initialize(mapload)
	. = ..()

	for(var/path in actions_types)
		add_item_action(path)

	if(islist(origin_tech))
		origin_tech = typelist(NAMEOF(src, origin_tech), origin_tech)

	if(embed_chance < 0)
		if(sharp)
			embed_chance = max(5, round(force/w_class))
		else
			embed_chance = max(5, round(force/(w_class*3)))

/obj/item/equipped()
	..()
	var/mob/living/M = loc
	if(!istype(M))
		return
	M.update_held_icons()

/obj/item/Destroy()
	if(ismob(loc))
		var/mob/m = loc
		m.drop_from_inventory(src)
		m.update_inv_r_hand()
		m.update_inv_l_hand()
		src.loc = null

	// Handle celaning up our actions list
	for(var/datum/action/action as anything in actions)
		remove_item_action(action)

	return ..()


/// Called when an action associated with our item is deleted
/obj/item/proc/on_action_deleted(datum/source)
	SIGNAL_HANDLER

	if(!(source in actions))
		CRASH("An action ([source.type]) was deleted that was associated with an item ([src]), but was not found in the item's actions list.")

	LAZYREMOVE(actions, source)

/// Adds an item action to our list of item actions.
/// Item actions are actions linked to our item, that are granted to mobs who equip us.
/// This also ensures that the actions are properly tracked in the actions list and removed if they're deleted.
/// Can be be passed a typepath of an action or an instance of an action.
/obj/item/proc/add_item_action(action_or_action_type)
	var/datum/action/action
	if(ispath(action_or_action_type, /datum/action))
		action = new action_or_action_type(src)
	else if(istype(action_or_action_type, /datum/action))
		action = action_or_action_type
	else
		CRASH("item add_item_action got a type or instance of something that wasn't an action.")

	LAZYADD(actions, action)
	RegisterSignal(action, COMSIG_PARENT_QDELETING, PROC_REF(on_action_deleted))
	if(ismob(loc))
		// We're being held or are equipped by someone while adding an action?
		// Then they should also probably be granted the action, given it's in a correct slot
		var/mob/holder = loc
		give_item_action(action, holder, holder.get_inventory_slot(src))

	return action

/// Removes an instance of an action from our list of item actions.
/obj/item/proc/remove_item_action(datum/action/action)
	if(!action)
		return

	UnregisterSignal(action, COMSIG_PARENT_QDELETING)
	LAZYREMOVE(actions, action)
	qdel(action)

// Check if target is reasonable for us to operate on.
/obj/item/proc/check_allowed_items(atom/target, not_inside, target_self)
	if(((src in target) && !target_self) || ((!istype(target.loc, /turf)) && (!istype(target, /turf)) && (not_inside)))
		return FALSE
	else
		return TRUE

/obj/item/proc/update_twohanding()
	update_held_icon()

/obj/item/proc/is_held_twohanded(mob/living/M)
	var/check_hand
	if(M.l_hand == src && !M.r_hand)
		check_hand = BP_R_HAND //item in left hand, check right hand
	else if(M.r_hand == src && !M.l_hand)
		check_hand = BP_L_HAND //item in right hand, check left hand
	else
		return FALSE

	//would check is_broken() and is_malfunctioning() here too but is_malfunctioning()
	//is probabilistic so we can't do that and it would be unfair to just check one.
	if(ishuman(M))
		var/mob/living/carbon/human/H = M
		var/obj/item/organ/external/hand = H.organs_by_name[check_hand]
		if(istype(hand) && hand.is_usable())
			return TRUE
	var/mob/living/simple_mob/S = M
	if(istype(S) && S.has_hands) //Are they a mob? And do they have hands?
		return TRUE

	return FALSE


//Checks if the item is being held by a mob, and if so, updates the held icons
/obj/item/proc/update_held_icon()
	if(isliving(src.loc))
		var/mob/living/M = src.loc
		if(M.l_hand == src)
			M.update_inv_l_hand()
		else if(M.r_hand == src)
			M.update_inv_r_hand()

/obj/item/ex_act(severity)
	switch(severity)
		if(1.0)
			qdel(src)
		if(2.0)
			if (prob(50))
				qdel(src)
		if(3.0)
			if (prob(5))
				qdel(src)

/obj/item/verb/move_to_top()
	set name = "Move To Top"
	set category = "Object"
	set src in oview(1)

	if(!istype(src.loc, /turf) || usr.stat || usr.restrained() )
		return

	var/turf/T = src.loc

	src.loc = null

	src.loc = T

// See inventory_sizes.dm for the defines.
/obj/item/examine(mob/user)
	var/size
	switch(src.w_class)
		if(ITEMSIZE_TINY)
			size = "tiny"
		if(ITEMSIZE_SMALL)
			size = "small"
		if(ITEMSIZE_NORMAL)
			size = "normal-sized"
		if(ITEMSIZE_LARGE)
			size = "bulky"
		if(ITEMSIZE_HUGE)
			size = "huge"
		if(ITEMSIZE_NO_CONTAINER)
			size = "massive"
	return ..(user, "", "It is a [size] item.")

/obj/item/attack_hand(mob/living/user as mob)
	if (!user) return
	..()
	if(anchored) // Start CHOMPStation Edit
		if(hascall(src, "attack_self"))
			return src.attack_self(user)
		else
			to_chat(user, span_notice("This is anchored and you can't lift it."))
		return // End CHOMPStation Edit
	if (hasorgans(user))
		var/mob/living/carbon/human/H = user
		var/obj/item/organ/external/temp = H.organs_by_name["r_hand"]
		if (user.hand)
			temp = H.organs_by_name["l_hand"]
		if(temp && !temp.is_usable())
			to_chat(user, span_notice("You try to move your [temp.name], but cannot!"))
			return
		if(!temp)
			to_chat(user, span_notice("You try to use your hand, but realize it is no longer attached!"))
			return
	if(istype(src, /obj/item/holder))
		var/obj/item/holder/D = src
		if(D.held_mob == user) return // No picking your own micro self up

	var/old_loc = src.loc
	if (istype(src.loc, /obj/item/storage))
		var/obj/item/storage/S = src.loc
		if(!S.remove_from_storage(src))
			return

	src.pickup(user)
	src.throwing = 0
	if (src.loc == user)
		if(!user.unEquip(src))
			return
	else
		if(isliving(src.loc))
			return

	if(user.put_in_active_hand(src))
		if(isturf(old_loc))
			var/obj/effect/temporary_effect/item_pickup_ghost/ghost = new(old_loc)
			ghost.assumeform(src)
			ghost.animate_towards(user)
	//VORESTATION EDIT START. This handles possessed items.
	if(src.possessed_voice && src.possessed_voice.len > 1 && !(user.ckey in warned_of_possession)) // CHOMPEdit Is this item possessed?
		warned_of_possession |= user.ckey
		tgui_alert_async(user,{"
		THIS ITEM IS POSSESSED BY A PLAYER CURRENTLY IN THE ROUND. This could be by anomalous means or otherwise.
		If this is not something you wish to partake in, it is highly suggested you place the item back down.
		If this is fine to you, ensure that the other player is fine with you doing things to them beforehand!
		"},"OOC Warning")
	//VORESTATION EDIT END.
	return

/obj/item/attack_ai(mob/user as mob)
	if (istype(src.loc, /obj/item/robot_module))
		//If the item is part of a cyborg module, equip it
		if(!isrobot(user))
			return
		var/mob/living/silicon/robot/R = user
		R.activate_module(src)
		R.hud_used.update_robot_modules_display()

/obj/item/attackby(obj/item/W as obj, mob/user as mob)
	. = ..()
	if(istype(W, /obj/item/storage))
		var/obj/item/storage/S = W
		if(S.use_to_pickup)
			if(S.collection_mode) //Mode is set to collect all items
				if(isturf(src.loc))
					S.gather_all(src.loc, user)

			else if(S.can_be_inserted(src))
				S.handle_item_insertion(src)
	return

/obj/item/proc/talk_into(mob/M as mob, text)
	return

/obj/item/proc/moved(mob/user as mob, old_loc as turf)
	return

/obj/item/proc/get_volume_by_throwforce_and_or_w_class() // This is used for figuring out how loud our sounds are for throwing.
	if(throwforce && w_class)
		return CLAMP((throwforce + w_class) * 5, 30, 100)// Add the item's throwforce to its weight class and multiply by 5, then clamp the value between 30 and 100
	else if(w_class)
		return CLAMP(w_class * 8, 20, 100) // Multiply the item's weight class by 8, then clamp the value between 20 and 100
	else
		return 0

/obj/item/throw_impact(atom/hit_atom)
	..()
	if(isliving(hit_atom) && !hit_atom.is_incorporeal()) //Living mobs handle hit sounds differently.
		var/volume = get_volume_by_throwforce_and_or_w_class()
		if (throwforce > 0)
			if (mob_throw_hit_sound)
				playsound(hit_atom, mob_throw_hit_sound, volume, TRUE, -1)
			else if(hitsound)
				playsound(hit_atom, hitsound, volume, TRUE, -1)
			else
				playsound(hit_atom, 'sound/weapons/genhit.ogg', volume, TRUE, -1)
		else
			playsound(hit_atom, 'sound/weapons/throwtap.ogg', 1, volume, -1)
	else
		playsound(src, drop_sound, 30, preference = /datum/preference/toggle/drop_sounds)

// apparently called whenever an item is removed from a slot, container, or anything else.
/obj/item/proc/dropped(mob/user)
	SHOULD_CALL_PARENT(TRUE)
	if(zoom)
		zoom() //binoculars, scope, etc
	appearance_flags &= ~NO_CLIENT_COLOR
	// Remove any item actions we temporary gave out.
	for(var/datum/action/action_item_has as anything in actions)
		action_item_has.Remove(user)

// called just as an item is picked up (loc is not yet changed)
/obj/item/proc/pickup(mob/user)
	pixel_x = 0
	pixel_y = 0
	return

// called when this item is removed from a storage item, which is passed on as S. The loc variable is already set to the new destination before this is called.
/obj/item/proc/on_exit_storage(obj/item/storage/S as obj)
	return

// called when this item is added into a storage item, which is passed on as S. The loc variable is already set to the storage item.
/obj/item/proc/on_enter_storage(obj/item/storage/S as obj)
	return

// called when "found" in pockets and storage items. Returns 1 if the search should end.
/obj/item/proc/on_found(mob/finder as mob)
	return

// called after an item is placed in an equipment slot
// user is mob that equipped it
// slot uses the slot_X defines found in setup.dm
// for items that can be placed in multiple slots
// note this isn't called during the initial dressing of a player
/obj/item/proc/equipped(var/mob/user, var/slot)
	// Give out actions our item has to people who equip it.
	for(var/datum/action/action as anything in actions)
		give_item_action(action, user, slot)
	hud_layerise()
	user.position_hud_item(src,slot)
	if(user.client)	user.client.screen |= src
	if(user.pulling == src) user.stop_pulling()
	if(("[slot]" in slot_flags_enumeration) && (slot_flags & slot_flags_enumeration["[slot]"]))
		if(equip_sound && !muffled_by_belly(user)) //ChompEDIT
			playsound(src, equip_sound, 20, preference = /datum/preference/toggle/pickup_sounds)
		else if(!muffled_by_belly(user)) //ChompEDIT
			playsound(src, drop_sound, 20, preference = /datum/preference/toggle/pickup_sounds)
	else if(slot == slot_l_hand || slot == slot_r_hand)
		if(!muffled_by_belly(user)) //ChompEDIT
			playsound(src, pickup_sound, 20, preference = /datum/preference/toggle/pickup_sounds)
	return

/// Gives one of our item actions to a mob, when equipped to a certain slot
/obj/item/proc/give_item_action(datum/action/action, mob/to_who, slot)
	// Some items only give their actions buttons when in a specific slot.
	if(!item_action_slot_check(slot, to_who))
		// There is a chance we still have our item action currently,
		// and are moving it from a "valid slot" to an "invalid slot".
		// So call Remove() here regardless, even if excessive.
		action.Remove(to_who)
		return

	action.Grant(to_who)

//sometimes we only want to grant the item's action if it's equipped in a specific slot.
/obj/item/proc/item_action_slot_check(slot, mob/user)
	if(slot == SLOT_BACK || slot == LEGS) //these aren't true slots, so avoid granting actions there
		return FALSE
	return TRUE

// As above but for items being equipped to an active module on a robot.
/obj/item/proc/equipped_robot(var/mob/user)
	return

//Defines which slots correspond to which slot flags
var/list/global/slot_flags_enumeration = list(
	"[slot_wear_mask]" = SLOT_MASK,
	"[slot_back]" = SLOT_BACK,
	"[slot_wear_suit]" = SLOT_OCLOTHING,
	"[slot_gloves]" = SLOT_GLOVES,
	"[slot_shoes]" = SLOT_FEET,
	"[slot_belt]" = SLOT_BELT,
	"[slot_glasses]" = SLOT_EYES,
	"[slot_head]" = SLOT_HEAD,
	"[slot_l_ear]" = SLOT_EARS|SLOT_TWOEARS,
	"[slot_r_ear]" = SLOT_EARS|SLOT_TWOEARS,
	"[slot_w_uniform]" = SLOT_ICLOTHING,
	"[slot_wear_id]" = SLOT_ID,
	"[slot_tie]" = SLOT_TIE,
	)

//the mob M is attempting to equip this item into the slot passed through as 'slot'. Return 1 if it can do this and 0 if it can't.
//If you are making custom procs but would like to retain partial or complete functionality of this one, include a 'return ..()' to where you want this to happen.
//Set disable_warning to 1 if you wish it to not give you outputs.
//Should probably move the bulk of this into mob code some time, as most of it is related to the definition of slots and not item-specific
/obj/item/proc/mob_can_equip(M as mob, slot, disable_warning = FALSE, var/ignore_obstruction = FALSE)
	if(!slot) return 0
	if(!M) return 0

	if(!ishuman(M)) return 0

	var/mob/living/carbon/human/H = M
	var/list/mob_equip = list()
	if(H.species.hud && H.species.hud.equip_slots)
		mob_equip = H.species.hud.equip_slots

	if(H.species && !(slot in mob_equip))
		return 0

	//First check if the item can be equipped to the desired slot.
	if("[slot]" in slot_flags_enumeration)
		var/req_flags = slot_flags_enumeration["[slot]"]
		if(!(req_flags & slot_flags))
			return 0

	//Next check that the slot is free
	if(H.get_equipped_item(slot))
		return 0

	//Next check if the slot is accessible.
	var/mob/_user = disable_warning? null : H
	if(!ignore_obstruction && !H.slot_is_accessible(slot, src, _user))
		return 0

	//Lastly, check special rules for the desired slot.
	switch(slot)
		if(slot_l_ear, slot_r_ear)
			var/slot_other_ear = (slot == slot_l_ear)? slot_r_ear : slot_l_ear
			if( (w_class > ITEMSIZE_TINY) && !(slot_flags & SLOT_EARS) )
				return 0
			if( (slot_flags & SLOT_TWOEARS) && H.get_equipped_item(slot_other_ear) )
				return 0
		if(slot_wear_id)
			if(!H.w_uniform && (slot_w_uniform in mob_equip))
				if(!disable_warning)
					to_chat(H, span_warning("You need a jumpsuit before you can attach this [name]."))
				return 0
		if(slot_l_store, slot_r_store)
			if(!H.w_uniform && (slot_w_uniform in mob_equip))
				if(!disable_warning)
					to_chat(H, span_warning("You need a jumpsuit before you can attach this [name]."))
				return 0
			if(slot_flags & SLOT_DENYPOCKET)
				return 0
			if( w_class > ITEMSIZE_SMALL && !(slot_flags & SLOT_POCKET) )
				return 0
		if(slot_s_store)
			if(!H.wear_suit && (slot_wear_suit in mob_equip))
				if(!disable_warning)
					to_chat(H, span_warning("You need a suit before you can attach this [name]."))
				return 0
			if(!H.wear_suit.allowed)
				if(!disable_warning)
					to_chat(usr, span_warning("You somehow have a suit with no defined allowed items for suit storage, stop that."))
				return 0
			if( !(istype(src, /obj/item/pda) || istype(src, /obj/item/pen) || is_type_in_list(src, H.wear_suit.allowed)) )
				return 0
		if(slot_legcuffed) //Going to put this check above the handcuff check because the survival of the universe depends on it.
			if(!istype(src, /obj/item/handcuffs/legcuffs)) //Putting it here might actually do nothing.
				return 0
		if(slot_handcuffed)
			if(!istype(src, /obj/item/handcuffs) || istype(src, /obj/item/handcuffs/legcuffs)) //Legcuffs are a child of handcuffs, but we don't want to use legcuffs as handcuffs...
				return 0 //In theory, this would never happen, but let's just do the legcuff check anyways.
		if(slot_in_backpack) //used entirely for equipping spawned mobs or at round start
			var/allow = 0
			if(H.back && istype(H.back, /obj/item/storage/backpack))
				var/obj/item/storage/backpack/B = H.back
				if(B.can_be_inserted(src,1))
					allow = 1
			if(!allow)
				return 0
		if(slot_tie)
			var/allow = 0
			for(var/obj/item/clothing/C in H.worn_clothing)	//Runs through everything you're wearing, returns if you can't attach the thing
				if(C.can_attach_accessory(src))
					allow = 1
					break
			if(!allow)
				if(!disable_warning)
					to_chat(H, span_warning("You're not wearing anything you can attach this [name] to."))
				return 0
	return 1

/obj/item/proc/mob_can_unequip(mob/M, slot, disable_warning = 0)
	if(!M) return 0

	if(!canremove)
		return 0

	if(!slot)
		if(issilicon(M))
			return 1 // for stuff in grippers
		return 0

	if(!M.slot_is_accessible(slot, src, disable_warning? null : M))
		return 0
	return 1

/obj/item/verb/verb_pickup()
	set src in oview(1)
	set category = "Object"
	set name = "Pick up"

	if(!(usr)) //BS12 EDIT
		return
	if(!usr.canmove || usr.stat || usr.restrained() || !Adjacent(usr))
		return
	if(isanimal(usr))	//VOREStation Edit Start - Allows simple mobs with hands to use the pickup verb
		var/mob/living/simple_mob/s = usr
		if(!s.has_hands)
			to_chat(usr, span_warning("You can't pick things up!"))
			return
	else if((!istype(usr, /mob/living/carbon)) || (istype(usr, /mob/living/carbon/brain)))//Is humanoid, and is not a brain
		to_chat(usr, span_warning("You can't pick things up!"))
		return
	var/mob/living/L = usr
	if( usr.stat || usr.restrained() )//Is not asleep/dead and is not restrained
		to_chat(usr, span_warning("You can't pick things up!"))
		return
	if(src.anchored) //Object isn't anchored
		to_chat(usr, span_warning("You can't pick that up!"))
		return
	if(L.get_active_hand()) //Hand is not full	//VOREStation Edit End
		to_chat(usr, span_warning("Your hand is full."))
		return
	if(!istype(src.loc, /turf)) //Object is on a turf
		to_chat(usr, span_warning("You can't pick that up!"))
		return
	//All checks are done, time to pick it up!
	usr.UnarmedAttack(src)
	return


//This proc is executed when someone clicks the on-screen UI button.
//The default action is attack_self().
//Checks before we get to here are: mob is alive, mob is not restrained, paralyzed, asleep, resting, laying, item is on the mob.
/obj/item/proc/ui_action_click(mob/user, actiontype)
	attack_self(user)

//RETURN VALUES
//handle_shield should return a positive value to indicate that the attack is blocked and should be prevented.
//If a negative value is returned, it should be treated as a special return value for bullet_act() and handled appropriately.
//For non-projectile attacks this usually means the attack is blocked.
//Otherwise should return 0 to indicate that the attack is not affected in any way.
/obj/item/proc/handle_shield(mob/user, var/damage, atom/damage_source = null, mob/attacker = null, var/def_zone = null, var/attack_text = "the attack")
	return 0

/obj/item/proc/get_loc_turf()
	var/atom/L = loc
	while(L && !istype(L, /turf/))
		L = L.loc
	return loc

/obj/item/proc/eyestab(mob/living/carbon/M as mob, mob/living/carbon/user as mob)

	var/mob/living/carbon/human/H = M
	var/mob/living/carbon/human/U = user
	if(istype(H))
		for(var/obj/item/protection in list(H.head, H.wear_mask, H.glasses))
			if(protection && (protection.body_parts_covered & EYES))
				// you can't stab someone in the eyes wearing a mask!
				to_chat(user, span_warning("You're going to need to remove the eye covering first."))
				return

	if(!M.has_eyes())
		to_chat(user, span_warning("You cannot locate any eyes on [M]!"))
		return

	//this should absolutely trigger even if not aim-impaired in some way
	var/hit_zone = get_zone_with_miss_chance(U.zone_sel.selecting, M, U.get_accuracy_penalty(U))
	if(!hit_zone)
		U.do_attack_animation(M)
		playsound(src, 'sound/weapons/punchmiss.ogg', 25, 1, -1)
		visible_message(span_danger("\The [U] attempts to stab \the [M] in the eyes, but misses!"))
		return

	add_attack_logs(user,M,"Attack eyes with [name]")

	user.setClickCooldown(user.get_attack_speed())
	user.do_attack_animation(M)

	src.add_fingerprint(user)
	//if((CLUMSY in user.mutations) && prob(50))
	//	M = user
		/*
		to_chat(M, span_warning("You stab yourself in the eye."))
		M.sdisabilities |= BLIND
		M.weakened += 4
		M.adjustBruteLoss(10)
		*/

	if(istype(H))

		var/obj/item/organ/internal/eyes/eyes = H.internal_organs_by_name[O_EYES]

		if(H != user)
			for(var/mob/O in (viewers(M) - user - M))
				O.show_message(span_danger("[M] has been stabbed in the eye with [src] by [user]."), 1)
			to_chat(M, span_danger("[user] stabs you in the eye with [src]!"))
			to_chat(user, span_danger("You stab [M] in the eye with [src]!"))
		else
			user.visible_message( \
				span_danger("[user] has stabbed themself with [src]!"), \
				span_danger("You stab yourself in the eyes with [src]!") \
			)

		eyes.damage += rand(3,4)
		if(eyes.damage >= eyes.min_bruised_damage)
			if(M.stat != 2)
				if(!(eyes.robotic >= ORGAN_ROBOT)) //robot eyes bleeding might be a bit silly
					to_chat(M, span_danger("Your eyes start to bleed profusely!"))
			if(prob(50))
				if(M.stat != 2)
					to_chat(M, span_warning("You drop what you're holding and clutch at your eyes!"))
					M.drop_item()
				M.eye_blurry += 10
				M.Paralyse(1)
				M.Weaken(4)
			if (eyes.damage >= eyes.min_broken_damage)
				if(M.stat != 2)
					to_chat(M, span_warning("You go blind!"))
		var/obj/item/organ/external/affecting = H.get_organ(BP_HEAD)
		if(affecting.take_damage(7))
			M:UpdateDamageIcon()
	else
		M.take_organ_damage(7)
	M.eye_blurry += rand(3,4)
	return

/obj/item/clean_blood()
	. = ..()
	if(blood_overlay)
		overlays.Remove(blood_overlay)

/obj/item/reveal_blood()
	if(was_bloodied && !fluorescent)
		fluorescent = 1
		blood_color = COLOR_LUMINOL
		blood_overlay.color = COLOR_LUMINOL
		update_icon()

/obj/item/add_blood(mob/living/carbon/human/M as mob)
	if (!..())
		return 0

	if(istype(src, /obj/item/melee/energy))
		return

	//if we haven't made our blood_overlay already
	if(!blood_overlay)
		generate_blood_overlay()
	else
		overlays.Remove(blood_overlay)

	//Make the blood_overlay have the proper color then apply it.
	blood_overlay.color = blood_color
	add_overlay(blood_overlay)

	//if this blood isn't already in the list, add it
	if(istype(M))
		if(blood_DNA[M.dna.unique_enzymes])
			return 0 //already bloodied with this blood. Cannot add more.
		blood_DNA[M.dna.unique_enzymes] = M.dna.b_type
	return 1 //we applied blood to the item

GLOBAL_LIST_EMPTY(blood_overlays_by_type)
/obj/item/proc/generate_blood_overlay()
	// Already got one
	if(blood_overlay)
		return

	// Already cached
	if(GLOB.blood_overlays_by_type[type])
		blood_overlay = GLOB.blood_overlays_by_type[type]
		return

	// Firsties!
	var/image/blood = image(icon = 'icons/effects/blood.dmi', icon_state = "itemblood") // Needs to be a new one each time since we're slicing it up with filters.
	blood.filters += filter(type = "alpha", icon = icon(icon, icon_state)) // Same, this filter is unique for each blood overlay per type
	GLOB.blood_overlays_by_type[type] = blood

	// And finally
	blood_overlay = blood

/obj/item/proc/showoff(mob/user)
	for (var/mob/M in view(user))
		M.show_message(span_filter_notice("[user] holds up [src]. <a HREF='byond://?src=\ref[M];lookitem=\ref[src]'>Take a closer look.</a>"),1)

/mob/living/carbon/verb/showoff()
	set name = "Show Held Item"
	set category = "Object"

	var/obj/item/I = get_active_hand()
	if(I && !I.abstract)
		I.showoff(src)

/*
For zooming with scope or binoculars. This is called from
modules/mob/mob_movement.dm if you move you will be zoomed out
modules/mob/living/carbon/human/life.dm if you die, you will be zoomed out.
*/
//Looking through a scope or binoculars should /not/ improve your periphereal vision. Still, increase viewsize a tiny bit so that sniping isn't as restricted to NSEW
/obj/item/var/ignore_visor_zoom_restriction = FALSE

/obj/item/proc/zoom(var/mob/living/M, var/tileoffset = 14,var/viewsize = 9) //tileoffset is client view offset in the direction the user is facing. viewsize is how far out this thing zooms. 7 is normal view

	if(isliving(usr)) //Always prefer usr if set
		M = usr

	if(!isliving(M))
		return 0


	var/devicename

	if(zoomdevicename)
		devicename = zoomdevicename
	else
		devicename = src.name

	var/cannotzoom

	if((M.stat && !zoom) || !(ishuman(M)))
		to_chat(M, span_filter_notice("You are unable to focus through the [devicename]."))
		cannotzoom = 1
	else if(!zoom && (global_hud.darkMask[1] in M.client.screen))
		to_chat(M, span_filter_notice("Your visor gets in the way of looking through the [devicename]."))
		cannotzoom = 1
	else if(!zoom && M.get_active_hand() != src)
		to_chat(M, span_filter_notice("You are too distracted to look through the [devicename], perhaps if it was in your active hand this might work better."))
		cannotzoom = 1

	//We checked above if they are a human and returned already if they weren't.
	var/mob/living/carbon/human/H = M

	if(!zoom && !cannotzoom)
		if(H.hud_used.hud_shown)
			H.toggle_zoom_hud()	// If the user has already limited their HUD this avoids them having a HUD when they zoom in
		H.set_viewsize(viewsize)
		zoom = 1
		H.AddComponent(/datum/component/recursive_move)
		RegisterSignal(H, COMSIG_OBSERVER_MOVED, PROC_REF(zoom), override = TRUE)

		var/tilesize = 32
		var/viewoffset = tilesize * tileoffset

		switch(H.dir)
			if (NORTH)
				H.client.pixel_x = 0
				H.client.pixel_y = viewoffset
			if (SOUTH)
				H.client.pixel_x = 0
				H.client.pixel_y = -viewoffset
			if (EAST)
				H.client.pixel_x = viewoffset
				H.client.pixel_y = 0
			if (WEST)
				H.client.pixel_x = -viewoffset
				H.client.pixel_y = 0

		H.visible_message(span_filter_notice("[M] peers through the [zoomdevicename ? "[zoomdevicename] of the [src.name]" : "[src.name]"]."))
		if(!ignore_visor_zoom_restriction)
			H.looking_elsewhere = TRUE
		H.handle_vision()

	else
		H.set_viewsize() // Reset to default
		if(!H.hud_used.hud_shown)
			H.toggle_zoom_hud()
		zoom = 0
		UnregisterSignal(H, COMSIG_OBSERVER_MOVED)

		H.client.pixel_x = 0
		H.client.pixel_y = 0
		H.looking_elsewhere = FALSE
		H.handle_vision()

		if(!cannotzoom)
			M.visible_message(span_filter_notice("[zoomdevicename ? "[M] looks up from the [src.name]" : "[M] lowers the [src.name]"]."))

	return

/obj/item/proc/pwr_drain()
	return 0 // Process Kill

// Used for non-adjacent melee attacks with specific weapons capable of reaching more than one tile.
// This uses changeling range string A* but for this purpose its also applicable.
/obj/item/proc/attack_can_reach(var/atom/us, var/atom/them, var/range)
	if(us.Adjacent(them))
		return TRUE // Already adjacent.
	if(AStar(get_turf(us), get_turf(them), /turf/proc/AdjacentTurfsRangedSting, /turf/proc/Distance, max_nodes=25, max_node_depth=range))
		return TRUE
	return FALSE

// Check if an object should ignite others, like a lit lighter or candle.
/obj/item/proc/is_hot()
	return FALSE

// Called when you swap hands away from the item
/obj/item/proc/in_inactive_hand(mob/user)
	return

//Used for selecting a random pixel placement, usually on initialize. Checks for pixel_x/y to not interfere with mapped in items.
/obj/item/proc/randpixel_xy()
	if(!pixel_x && !pixel_y)
		pixel_x = rand(-randpixel, randpixel)
		pixel_y = rand(-randpixel, randpixel)
		return TRUE
	else
		return FALSE

//Worn icon generation for on-mob sprites
/obj/item/proc/make_worn_icon(var/body_type,var/slot_name,var/inhands,var/default_icon,var/default_layer,var/icon/clip_mask = null)
	//Get the required information about the base icon
	var/icon/icon2use = get_worn_icon_file(body_type = body_type, slot_name = slot_name, default_icon = default_icon, inhands = inhands)
	var/state2use = get_worn_icon_state(slot_name = slot_name)
	var/layer2use = get_worn_layer(default_layer = default_layer)

	//Snowflakey inhand icons in a specific slot
	if(inhands && icon2use == icon_override)
		switch(slot_name)
			if(slot_r_hand_str)
				state2use += "_r"
			if(slot_l_hand_str)
				state2use += "_l"

	// testing("[src] (\ref[src]) - Slot: [slot_name], Inhands: [inhands], Worn Icon:[icon2use], Worn State:[state2use], Worn Layer:[layer2use]")
	// Send icon data to unit test when it is running, hello old testing(). I'm like, your great great grandkid! THE FUTURE IS NOW OLD MAN!
	#ifdef UNIT_TEST
	var/mob/living/carbon/human/H = loc
	if(ishuman(H))
		SEND_SIGNAL(H, COMSIG_UNITTEST_DATA, list("set_slot",slot_name,icon2use,state2use,inhands,type,H.species?.name))
	#endif

	//Generate the base onmob icon
	var/icon/standing_icon = icon(icon = icon2use, icon_state = state2use)

	if(!inhands)
		apply_custom(standing_icon)		//Pre-image overridable proc to customize the thing
		apply_addblends(icon2use,standing_icon)		//Some items have ICON_ADD blend shaders

	var/image/standing = image(standing_icon)
	standing.alpha = alpha
	standing.color = color
	standing.layer = layer2use

	if(istype(clip_mask)) //For taur bodies/tails clipping off parts of uniforms and suits.
		standing.filters += filter(type = "alpha", icon = clip_mask)

	//Apply any special features
	if(!inhands)
		apply_blood(standing)			//Some items show blood when bloodied
		apply_accessories(standing)		//Some items sport accessories like webbing

	//Apply overlays to our...overlay
	apply_overlays(standing)

	//Return our icon
	return standing

//Returns the icon object that should be used for the worn icon
/obj/item/proc/get_worn_icon_file(var/body_type,var/slot_name,var/default_icon,var/inhands)

	//1: icon_override var
	if(icon_override)
		return icon_override

	//2: species-specific sprite sheets (skipped for inhands)
	if(LAZYLEN(sprite_sheets) && !inhands)
		var/sheet = sprite_sheets[body_type]
		if(sheet)
			return sheet

	//3: slot-specific sprite sheets
	if(LAZYLEN(item_icons))
		var/sheet = item_icons[slot_name]
		if(sheet)
			return sheet

	//4: item's default icon
	if(default_worn_icon)
		return default_worn_icon

	//5: provided default_icon
	if(default_icon)
		return default_icon

	//6: give up
	return

//Returns the state that should be used for the worn icon
/obj/item/proc/get_worn_icon_state(var/slot_name)

	//1: slot-specific sprite sheets
	if(LAZYLEN(item_state_slots))
		var/state = item_state_slots[slot_name]
		if(state)
			return state

	//2: item_state variable
	if(item_state)
		return item_state

	//3: icon_state variable
	if(icon_state)
		return icon_state

//Returns the layer that should be used for the worn icon (as a FLOAT_LAYER layer, so negative)
/obj/item/proc/get_worn_layer(var/default_layer = 0)

	//1: worn_layer variable
	if(!isnull(worn_layer)) //Can be zero, so...
		return BODY_LAYER+worn_layer

	//2: your default
	return BODY_LAYER+default_layer

//Apply the addblend blends onto the icon
/obj/item/proc/apply_addblends(var/source_icon, var/icon/standing_icon)

	//If we have addblends, blend them onto the provided icon
	if(addblends && standing_icon && source_icon)
		var/addblend_icon = icon("icon" = source_icon, "icon_state" = addblends)
		standing_icon.Blend(addblend_icon, ICON_ADD)

//STUB
/obj/item/proc/apply_custom(var/icon/standing_icon)
	return standing_icon

//STUB
/obj/item/proc/apply_blood(var/image/standing)
	return standing

//STUB
/obj/item/proc/apply_accessories(var/image/standing)
	return standing

/obj/item/proc/apply_overlays(var/image/standing)
	if(!blocks_emissive)
		return standing

	var/mutable_appearance/blocker_overlay = mutable_appearance(standing.icon, standing.icon_state, plane = PLANE_EMISSIVE, appearance_flags = KEEP_APART)
	blocker_overlay.color = GLOB.em_block_color
	standing.add_overlay(blocker_overlay)
	return standing

/obj/item/MouseEntered(location,control,params)
	. = ..()
	if(usr?.read_preference(/datum/preference/toggle/inv_tooltips) && ((src in usr) || isstorage(loc))) // If in inventory or in storage we're looking at
		var/user = usr
		tip_timer = addtimer(CALLBACK(src, PROC_REF(openTip), location, control, params, user), 5, TIMER_STOPPABLE)

/obj/item/MouseExited()
	. = ..()
	deltimer(tip_timer)
	closeToolTip(usr)

/obj/item/proc/openTip(location, control, params, user)
	openToolTip(user, src, params, title = name, content = desc)

// These procs are for RPEDs and part ratings. The concept for this was borrowed from /vg/station.
// Gets the rating of the item, used in stuff like machine construction.
/obj/item/proc/get_rating()
	return FALSE

// Like the above, but used for RPED sorting of parts.
/obj/item/proc/rped_rating()
	return get_rating()

/// How are you described if at all when in pockets (or other 'usually not visible' places)
/obj/item/proc/pocket_description(mob/haver, mob/examiner)
	return null // most things are hidden

#define CELLS 8								//Amount of cells per row/column in grid
#define CELLSIZE (world.icon_size/CELLS)	//Size of a cell in pixels

/*
Automatic alignment of items to an invisible grid, defined by CELLS and CELLSIZE.
Since the grid will be shifted to own a cell that is perfectly centered on the turf, we end up with two 'cell halves'
on edges of each row/column.
Each item defines a center_of_mass, which is the pixel of a sprite where its projected center of mass toward a turf
surface can be assumed. For a piece of paper, this will be in its center. For a bottle, it will be (near) the bottom
of the sprite.
auto_align() will then place the sprite so the defined center_of_mass is at the bottom left corner of the grid cell
closest to where the cursor has clicked on.
Note: This proc can be overwritten to allow for different types of auto-alignment.
*/


/obj/item/var/center_of_mass_x = 16
/obj/item/var/center_of_mass_y = 16

/proc/auto_align(obj/item/W, click_parameters, var/animate = FALSE)
	if(!W.center_of_mass_x && !W.center_of_mass_y)
		W.randpixel_xy()
		return

	if(!click_parameters)
		return

	var/list/mouse_control = params2list(click_parameters)

	var/mouse_x = text2num(mouse_control["icon-x"])
	var/mouse_y = text2num(mouse_control["icon-y"])

	if(isnum(mouse_x) && isnum(mouse_y))
		var/cell_x = max(0, min(CELLS-1, round(mouse_x/CELLSIZE)))
		var/cell_y = max(0, min(CELLS-1, round(mouse_y/CELLSIZE)))

		var/target_x = (CELLSIZE * (0.5 + cell_x)) - W.center_of_mass_x
		var/target_y = (CELLSIZE * (0.5 + cell_y)) - W.center_of_mass_y
		if(animate)
			var/dist_x = abs(W.pixel_x - target_x)
			var/dist_y = abs(W.pixel_y - target_y)
			var/dist = sqrt((dist_x*dist_x)+(dist_y*dist_y))
			animate(W, pixel_x=target_x, pixel_y=target_y,time=dist*0.5)
		else
			W.pixel_x = target_x
			W.pixel_y = target_y

#undef CELLS
#undef CELLSIZE

// this gets called when the item gets chucked by the vending machine
/obj/item/proc/vendor_action(var/obj/machinery/vending/V)
	return

/obj/item/proc/on_holder_escape(var/obj/item/holder/H)
	return

/obj/item/proc/get_welder()
	return