Polaris/code/game/objects/items.dm

/obj/item
	name = "item"
	icon = 'icons/obj/items.dmi'
	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/abstract = 0
	var/item_state = null
	var/r_speed = 1.0
	var/health = null
	var/burn_point = null
	var/burning = null
	var/hitsound = null
	var/w_class = 3.0
	flags = FPRINT | TABLEPASS
	var/slot_flags = 0		//This is used to determine on which slots an item can fit.
	pass_flags = PASSTABLE
	pressure_resistance = 5
//	causeerrorheresoifixthis
	var/obj/item/master = null

	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/icon_action_button //If this is set, The item will make an action button on the player's HUD when picked up. The button will have the icon_action_button sprite from the screen1_action.dmi file.
	var/action_button_name //This is the text which gets displayed on the action button. If not set it defaults to 'Use [name]'. Note that icon_action_button needs to be set in order for the action button to appear.

	//Since any item can now be a piece of clothing, this has to be put here so all items share it.
	var/flags_inv //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.
	var/item_color = null
	var/body_parts_covered = 0 //see setup.dm for appropriate bit flags
	//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 = 1 //Mostly for Ninja code at this point but basically will not allow the item to be removed if set to 0. /N
	var/armor = 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/device/uplink/hidden/hidden_uplink = null // All items can have an uplink hidden inside, just remember to add the triggers.
	var/icon_override = null  //Used to override hardcoded clothing dmis in human clothing proc.

/obj/item/device
	icon = 'icons/obj/device.dmi'

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

/obj/item/blob_act()
	return

//user: The mob that is suiciding
//damagetype: The type of damage the item will inflict on the user
//BRUTELOSS = 1
//FIRELOSS = 2
//TOXLOSS = 4
//OXYLOSS = 8
//Output a creative message and then return the damagetype done
/obj/item/proc/suicide_act(mob/user)
	return

/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

/obj/item/examine()
	set src in view()

	var/size
	switch(src.w_class)
		if(1.0)
			size = "tiny"
		if(2.0)
			size = "small"
		if(3.0)
			size = "normal-sized"
		if(4.0)
			size = "bulky"
		if(5.0)
			size = "huge"
		else
	//if ((CLUMSY in usr.mutations) && prob(50)) t = "funny-looking"
	usr << "This is a [src.blood_DNA ? "bloody " : ""]\icon[src][src.name]. It is a [size] item."
	if(src.desc)
		usr << src.desc
	return

/obj/item/attack_hand(mob/user as mob)
	if (!user) return
	if (hasorgans(user))
		var/datum/organ/external/temp = user:organs_by_name["r_hand"]
		if (user.hand)
			temp = user:organs_by_name["l_hand"]
		if(temp && !temp.is_usable())
			user << "<span class='notice'>You try to move your [temp.display_name], but cannot!"
			return

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

	src.throwing = 0
	if (src.loc == user)
		//canremove==0 means that object may not be removed. You can still wear it. This only applies to clothing. /N
		if(!src.canremove)
			return
		else
			user.u_equip(src)
	else
		if(isliving(src.loc))
			return
		user.next_move = max(user.next_move+2,world.time + 2)
	src.pickup(user)
	add_fingerprint(user)
	user.put_in_active_hand(src)
	return


/obj/item/attack_paw(mob/user as mob)

	if(isalien(user)) // -- TLE
		var/mob/living/carbon/alien/A = user

		if(!A.has_fine_manipulation || w_class >= 4)
			if(src in A.contents) // To stop Aliens having items stuck in their pockets
				A.drop_from_inventory(src)
			user << "Your claws aren't capable of such fine manipulation."
			return

	if (istype(src.loc, /obj/item/weapon/storage))
		for(var/mob/M in range(1, src.loc))
			if (M.s_active == src.loc)
				if (M.client)
					M.client.screen -= src
	src.throwing = 0
	if (src.loc == user)
		//canremove==0 means that object may not be removed. You can still wear it. This only applies to clothing. /N
		if(istype(src, /obj/item/clothing) && !src:canremove)
			return
		else
			user.u_equip(src)
	else
		if(istype(src.loc, /mob/living))
			return
		src.pickup(user)
		user.next_move = max(user.next_move+2,world.time + 2)

	user.put_in_active_hand(src)
	return

// Due to storage type consolidation this should get used more now.
// I have cleaned it up a little, but it could probably use more.  -Sayu
/obj/item/attackby(obj/item/weapon/W as obj, mob/user as mob)
	if(istype(W,/obj/item/weapon/storage))
		var/obj/item/weapon/storage/S = W
		if(S.use_to_pickup)
			if(S.collection_mode) //Mode is set to collect all items on a tile and we clicked on a valid one.
				if(isturf(src.loc))
					var/list/rejections = list()
					var/success = 0
					var/failure = 0

					for(var/obj/item/I in src.loc)
						if(I.type in rejections) // To limit bag spamming: any given type only complains once
							continue
						if(!S.can_be_inserted(I))	// Note can_be_inserted still makes noise when the answer is no
							rejections += I.type	// therefore full bags are still a little spammy
							failure = 1
							continue
						success = 1
						S.handle_item_insertion(I, 1)	//The 1 stops the "You put the [src] into [S]" insertion message from being displayed.
					if(success && !failure)
						user << "<span class='notice'>You put everything in [S].</span>"
					else if(success)
						user << "<span class='notice'>You put some things in [S].</span>"
					else
						user << "<span class='notice'>You fail to pick anything up with [S].</span>"

			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/dropped(mob/user as mob)
	..()

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

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

	if(ishuman(M))
		//START HUMAN
		var/mob/living/carbon/human/H = M

		switch(slot)
			if(slot_l_hand)
				if(H.l_hand)
					return 0
				return 1
			if(slot_r_hand)
				if(H.r_hand)
					return 0
				return 1
			if(slot_wear_mask)
				if(H.wear_mask)
					return 0
				if( !(slot_flags & SLOT_MASK) )
					return 0
				return 1
			if(slot_back)
				if(H.back)
					return 0
				if( !(slot_flags & SLOT_BACK) )
					return 0
				return 1
			if(slot_wear_suit)
				if(H.wear_suit)
					return 0
				if( !(slot_flags & SLOT_OCLOTHING) )
					return 0
				return 1
			if(slot_gloves)
				if(H.gloves)
					return 0
				if( !(slot_flags & SLOT_GLOVES) )
					return 0
				return 1
			if(slot_shoes)
				if(H.shoes)
					return 0
				if( !(slot_flags & SLOT_FEET) )
					return 0
				return 1
			if(slot_belt)
				if(H.belt)
					return 0
				if(!H.w_uniform)
					if(!disable_warning)
						H << "\red You need a jumpsuit before you can attach this [name]."
					return 0
				if( !(slot_flags & SLOT_BELT) )
					return
				return 1
			if(slot_glasses)
				if(H.glasses)
					return 0
				if( !(slot_flags & SLOT_EYES) )
					return 0
				return 1
			if(slot_head)
				if(H.head)
					return 0
				if( !(slot_flags & SLOT_HEAD) )
					return 0
				return 1
			if(slot_l_ear)
				if(H.l_ear)
					return 0
				if( w_class < 2	)
					return 1
				if( !(slot_flags & SLOT_EARS) )
					return 0
				if( (slot_flags & SLOT_TWOEARS) && H.r_ear )
					return 0
				return 1
			if(slot_r_ear)
				if(H.r_ear)
					return 0
				if( w_class < 2 )
					return 1
				if( !(slot_flags & SLOT_EARS) )
					return 0
				if( (slot_flags & SLOT_TWOEARS) && H.l_ear )
					return 0
				return 1
			if(slot_w_uniform)
				if(H.w_uniform)
					return 0
				if( !(slot_flags & SLOT_ICLOTHING) )
					return 0
				return 1
			if(slot_wear_id)
				if(H.wear_id)
					return 0
				if(!H.w_uniform)
					if(!disable_warning)
						H << "\red You need a jumpsuit before you can attach this [name]."
					return 0
				if( !(slot_flags & SLOT_ID) )
					return 0
				return 1
			if(slot_l_store)
				if(H.l_store)
					return 0
				if(!H.w_uniform)
					if(!disable_warning)
						H << "\red You need a jumpsuit before you can attach this [name]."
					return 0
				if(slot_flags & SLOT_DENYPOCKET)
					return 0
				if( w_class <= 2 || (slot_flags & SLOT_POCKET) )
					return 1
			if(slot_r_store)
				if(H.r_store)
					return 0
				if(!H.w_uniform)
					if(!disable_warning)
						H << "\red You need a jumpsuit before you can attach this [name]."
					return 0
				if(slot_flags & SLOT_DENYPOCKET)
					return 0
				if( w_class <= 2 || (slot_flags & SLOT_POCKET) )
					return 1
				return 0
			if(slot_s_store)
				if(H.s_store)
					return 0
				if(!H.wear_suit)
					if(!disable_warning)
						H << "\red You need a suit before you can attach this [name]."
					return 0
				if(!H.wear_suit.allowed)
					if(!disable_warning)
						usr << "You somehow have a suit with no defined allowed items for suit storage, stop that."
					return 0
				if( istype(src, /obj/item/device/pda) || istype(src, /obj/item/weapon/pen) || is_type_in_list(src, H.wear_suit.allowed) )
					return 1
				return 0
			if(slot_handcuffed)
				if(H.handcuffed)
					return 0
				if(!istype(src, /obj/item/weapon/handcuffs))
					return 0
				return 1
			if(slot_legcuffed)
				if(H.legcuffed)
					return 0
				if(!istype(src, /obj/item/weapon/legcuffs))
					return 0
				return 1
			if(slot_in_backpack)
				if (H.back && istype(H.back, /obj/item/weapon/storage/backpack))
					var/obj/item/weapon/storage/backpack/B = H.back
					if(B.contents.len < B.storage_slots && w_class <= B.max_w_class)
						return 1
				return 0
		return 0 //Unsupported slot
		//END HUMAN

	else if(ismonkey(M))
		//START MONKEY
		var/mob/living/carbon/monkey/MO = M
		switch(slot)
			if(slot_l_hand)
				if(MO.l_hand)
					return 0
				return 1
			if(slot_r_hand)
				if(MO.r_hand)
					return 0
				return 1
			if(slot_wear_mask)
				if(MO.wear_mask)
					return 0
				if( !(slot_flags & SLOT_MASK) )
					return 0
				return 1
			if(slot_back)
				if(MO.back)
					return 0
				if( !(slot_flags & SLOT_BACK) )
					return 0
				return 1
		return 0 //Unsupported slot

		//END MONKEY


/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((!istype(usr, /mob/living/carbon)) || (istype(usr, /mob/living/carbon/brain)))//Is humanoid, and is not a brain
		usr << "\red You can't pick things up!"
		return
	if( usr.stat || usr.restrained() )//Is not asleep/dead and is not restrained
		usr << "\red You can't pick things up!"
		return
	if(src.anchored) //Object isn't anchored
		usr << "\red You can't pick that up!"
		return
	if(!usr.hand && usr.r_hand) //Right hand is not full
		usr << "\red Your right hand is full."
		return
	if(usr.hand && usr.l_hand) //Left hand is not full
		usr << "\red Your left hand is full."
		return
	if(!istype(src.loc, /turf)) //Object is on a turf
		usr << "\red 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. To make the UI button show, set the 'icon_action_button' to the icon_state of the image of the button in screen1_action.dmi
//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()
	if( src in usr )
		attack_self(usr)


/obj/item/proc/IsShield()
	return 0

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

	var/mob/living/carbon/human/H = M
	if(istype(H) && ( \
			(H.head && H.head.flags & HEADCOVERSEYES) || \
			(H.wear_mask && H.wear_mask.flags & MASKCOVERSEYES) || \
			(H.glasses && H.glasses.flags & GLASSESCOVERSEYES) \
		))
		// you can't stab someone in the eyes wearing a mask!
		user << "\red You're going to need to remove the eye covering first."
		return

	var/mob/living/carbon/monkey/Mo = M
	if(istype(Mo) && ( \
			(Mo.wear_mask && Mo.wear_mask.flags & MASKCOVERSEYES) \
		))
		// you can't stab someone in the eyes wearing a mask!
		user << "\red You're going to need to remove the eye covering first."
		return

	if(istype(M, /mob/living/carbon/alien) || istype(M, /mob/living/carbon/slime))//Aliens don't have eyes./N     slimes also don't have eyes!
		user << "\red You cannot locate any eyes on this creature!"
		return

	user.attack_log += "\[[time_stamp()]\]<font color='red'> Attacked [M.name] ([M.ckey]) with [src.name] (INTENT: [uppertext(user.a_intent)])</font>"
	M.attack_log += "\[[time_stamp()]\]<font color='orange'> Attacked by [user.name] ([user.ckey]) with [src.name] (INTENT: [uppertext(user.a_intent)])</font>"
	msg_admin_attack("[user.name] ([user.ckey]) attacked [M.name] ([M.ckey]) with [src.name] (INTENT: [uppertext(user.a_intent)]) (<A HREF='?_src_=holder;adminplayerobservecoodjump=1;X=[user.x];Y=[user.y];Z=[user.z]'>JMP</a>)") //BS12 EDIT ALG

	src.add_fingerprint(user)
	//if((CLUMSY in user.mutations) && prob(50))
	//	M = user
		/*
		M << "\red You stab yourself in the eye."
		M.sdisabilities |= BLIND
		M.weakened += 4
		M.adjustBruteLoss(10)
		*/
	if(M != user)
		for(var/mob/O in (viewers(M) - user - M))
			O.show_message("\red [M] has been stabbed in the eye with [src] by [user].", 1)
		M << "\red [user] stabs you in the eye with [src]!"
		user << "\red You stab [M] in the eye with [src]!"
	else
		user.visible_message( \
			"\red [user] has stabbed themself with [src]!", \
			"\red You stab yourself in the eyes with [src]!" \
		)
	if(istype(M, /mob/living/carbon/human))
		var/datum/organ/internal/eyes/eyes = H.internal_organs["eyes"]
		eyes.damage += rand(3,4)
		if(eyes.damage >= eyes.min_bruised_damage)
			if(M.stat != 2)
				if(eyes.robotic <= 1) //robot eyes bleeding might be a bit silly
					M << "\red Your eyes start to bleed profusely!"
			if(prob(50))
				if(M.stat != 2)
					M << "\red 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)
					M << "\red You go blind!"
		var/datum/organ/external/affecting = M:get_organ("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)
	if(istype(src, /obj/item/clothing/gloves))
		var/obj/item/clothing/gloves/G = src
		G.transfer_blood = 0


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

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

	//if we haven't made our blood_overlay already
	if( !blood_overlay )
		generate_blood_overlay()

	//apply the blood-splatter overlay if it isn't already in there
	if(!blood_DNA.len)
		blood_overlay.color = blood_color
		overlays += blood_overlay

	//if this blood isn't already in the list, add it

	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

/obj/item/proc/generate_blood_overlay()
	if(blood_overlay)
		return

	var/icon/I = new /icon(icon, icon_state)
	I.Blend(new /icon('icons/effects/blood.dmi', rgb(255,255,255)),ICON_ADD) //fills the icon_state with white (except where it's transparent)
	I.Blend(new /icon('icons/effects/blood.dmi', "itemblood"),ICON_MULTIPLY) //adds blood and the remaining white areas become transparant

	//not sure if this is worth it. It attaches the blood_overlay to every item of the same type if they don't have one already made.
	for(var/obj/item/A in world)
		if(A.type == type && !A.blood_overlay)
			A.blood_overlay = image(I)

/obj/item/proc/showoff(mob/user)
	for (var/mob/M in view(user))
		M.show_message("[user] holds up [src]. <a HREF=?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)