/obj
	animate_movement = SLIDE_STEPS
	speech_span = SPAN_ROBOT
	var/obj_flags = CAN_BE_HIT
	var/set_obj_flags // ONLY FOR MAPPING: Sets flags from a string list, handled in Initialize. Usage: set_obj_flags = "EMAGGED;!CAN_BE_HIT" to set EMAGGED and clear CAN_BE_HIT.

	var/damtype = BRUTE
	var/force = 0

	/// How good a given object is at causing wounds on carbons. Higher values equal better shots at creating serious wounds.
	var/wound_bonus = 0
	/// If this attacks a human with no wound armor on the affected body part, add this to the wound mod. Some attacks may be significantly worse at wounding if there's even a slight layer of armor to absorb some of it vs bare flesh
	var/bare_wound_bonus = 0

	var/current_skin //Has the item been reskinned?
	var/list/unique_reskin //List of options to reskin.

	// Access levels, used in modules\jobs\access.dm
	var/list/req_access
	var/req_access_txt = "0"
	var/list/req_one_access
	var/req_one_access_txt = "0"
	/// Custom fire overlay icon
	var/custom_fire_overlay

	var/renamedByPlayer = FALSE //set when a player uses a pen on a renamable object

	var/drag_slowdown // Amont of multiplicative slowdown applied if pulled. >1 makes you slower, <1 makes you faster.

	vis_flags = VIS_INHERIT_PLANE //when this be added to vis_contents of something it inherit something.plane, important for visualisation of obj in openspace.

	/// Map tag for something.  Tired of it being used on snowflake items.  Moved here for some semblance of a standard.
	/// Next pr after the network fix will have me refactor door interactions, so help me god.
	var/id_tag = null
	/// Network id. If set it can be found by either its hardware id or by the id tag if thats set.  It can also be
	/// broadcasted to as long as the other guys network is on the same branch or above.
	var/network_id = null

	uses_integrity = TRUE

/obj/vv_edit_var(vname, vval)
	if(vname == NAMEOF(src, obj_flags))
		if ((obj_flags & DANGEROUS_POSSESSION) && !(vval & DANGEROUS_POSSESSION))
			return FALSE
	return ..()

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

	if (set_obj_flags)
		var/flagslist = splittext(set_obj_flags,";")
		var/list/string_to_objflag = GLOB.bitfields["obj_flags"]
		for (var/flag in flagslist)
			if(flag[1] == "!")
				flag = copytext(flag, length(flag[1]) + 1) // Get all but the initial !
				obj_flags &= ~string_to_objflag[flag]
			else
				obj_flags |= string_to_objflag[flag]

	if((obj_flags & ON_BLUEPRINTS) && isturf(loc))
		var/turf/T = loc
		T.add_blueprints_preround(src)

	if(network_id)
		var/area/A = get_area(src)
		if(A)
			if(!A.network_root_id)
				log_telecomms("Area '[A.name]([REF(A)])' has no network network_root_id, force assigning in object [src]([REF(src)])")
				SSnetworks.lookup_area_root_id(A)
			network_id = NETWORK_NAME_COMBINE(A.network_root_id, network_id) // I regret nothing!!
		else
			log_telecomms("Created [src]([REF(src)] in nullspace, assuming network to be in station")
			network_id = NETWORK_NAME_COMBINE(STATION_NETWORK_ROOT, network_id) // I regret nothing!!
		AddComponent(/datum/component/ntnet_interface, network_id, id_tag)
		/// Needs to run before as ComponentInitialize runs after this statement...why do we have ComponentInitialize again?


/obj/Destroy(force=FALSE)
	if(!ismachinery(src))
		STOP_PROCESSING(SSobj, src) // TODO: Have a processing bitflag to reduce on unnecessary loops through the processing lists
	SStgui.close_uis(src)
	. = ..()


/obj/throw_at(atom/target, range, speed, mob/thrower, spin=1, diagonals_first = 0, datum/callback/callback, force, gentle = FALSE, quickstart = TRUE)
	. = ..()
	if(obj_flags & FROZEN)
		visible_message(span_danger("[src] shatters into a million pieces!"))
		qdel(src)


/obj/assume_air(datum/gas_mixture/giver)
	if(loc)
		return loc.assume_air(giver)
	else
		return null

/obj/remove_air(amount)
	if(loc)
		return loc.remove_air(amount)
	else
		return null

/obj/return_air()
	if(loc)
		return loc.return_air()
	else
		return null

/obj/proc/handle_internal_lifeform(mob/lifeform_inside_me, breath_request)
	//Return: (NONSTANDARD)
	// null if object handles breathing logic for lifeform
	// datum/air_group to tell lifeform to process using that breath return
	//DEFAULT: Take air from turf to give to have mob process

	if(breath_request>0)
		var/datum/gas_mixture/environment = return_air()
		var/breath_percentage = BREATH_VOLUME / environment.return_volume()
		return remove_air(environment.total_moles() * breath_percentage)
	else
		return null

/obj/proc/updateUsrDialog()
	if((obj_flags & IN_USE) && !(obj_flags & USES_TGUI))
		var/is_in_use = FALSE
		var/list/nearby = viewers(1, src)
		for(var/mob/M in nearby)
			if ((M.client && M.machine == src))
				is_in_use = TRUE
				ui_interact(M)
		if(issilicon(usr) || isAdminGhostAI(usr))
			if (!(usr in nearby))
				if (usr.client && usr.machine==src) // && M.machine == src is omitted because if we triggered this by using the dialog, it doesn't matter if our machine changed in between triggering it and this - the dialog is probably still supposed to refresh.
					is_in_use = TRUE
					ui_interact(usr)

		// check for TK users

		if(ishuman(usr))
			var/mob/living/carbon/human/H = usr
			if(!(usr in nearby))
				if(usr.client && usr.machine==src)
					if(H.dna.check_mutation(TK))
						is_in_use = TRUE
						ui_interact(usr)
		if (is_in_use)
			obj_flags |= IN_USE
		else
			obj_flags &= ~IN_USE

/obj/proc/updateDialog(update_viewers = TRUE,update_ais = TRUE)
	// Check that people are actually using the machine. If not, don't update anymore.
	if(obj_flags & IN_USE)
		var/is_in_use = FALSE
		if(update_viewers)
			for(var/mob/M in viewers(1, src))
				if ((M.client && M.machine == src))
					is_in_use = TRUE
					src.interact(M)
		var/ai_in_use = FALSE
		if(update_ais)
			ai_in_use = AutoUpdateAI(src)

		if(update_viewers && update_ais) //State change is sure only if we check both
			if(!ai_in_use && !is_in_use)
				obj_flags &= ~IN_USE


/obj/attack_ghost(mob/user)
	. = ..()
	if(.)
		return
	SEND_SIGNAL(src, COMSIG_ATOM_UI_INTERACT, user)
	ui_interact(user)

/mob/proc/unset_machine()
	SIGNAL_HANDLER
	if(!machine)
		return
	UnregisterSignal(machine, COMSIG_PARENT_QDELETING)
	machine.on_unset_machine(src)
	machine = null

//called when the user unsets the machine.
/atom/movable/proc/on_unset_machine(mob/user)
	return

/mob/proc/set_machine(obj/O)
	if(machine)
		unset_machine()
	machine = O
	RegisterSignal(O, COMSIG_PARENT_QDELETING, .proc/unset_machine)
	if(istype(O))
		O.obj_flags |= IN_USE

/obj/item/proc/updateSelfDialog()
	var/mob/M = src.loc
	if(istype(M) && M.client && M.machine == src)
		src.attack_self(M)

/obj/singularity_pull(S, current_size)
	..()
	if(move_resist == INFINITY)
		return
	if(!anchored || current_size >= STAGE_FIVE)
		step_towards(src,S)

/obj/get_dumping_location(datum/component/storage/source,mob/user)
	return get_turf(src)

/**
 * This proc is used for telling whether something can pass by this object in a given direction, for use by the pathfinding system.
 *
 * Trying to generate one long path across the station will call this proc on every single object on every single tile that we're seeing if we can move through, likely
 * multiple times per tile since we're likely checking if we can access said tile from multiple directions, so keep these as lightweight as possible.
 *
 * Arguments:
 * * ID- An ID card representing what access we have (and thus if we can open things like airlocks or windows to pass through them). The ID card's physical location does not matter, just the reference
 * * to_dir- What direction we're trying to move in, relevant for things like directional windows that only block movement in certain directions
 * * caller- The movable we're checking pass flags for, if we're making any such checks
 **/
/obj/proc/CanAStarPass(obj/item/card/id/ID, to_dir, atom/movable/caller)
	if(istype(caller) && (caller.pass_flags & pass_flags_self))
		return TRUE
	. = !density

/obj/proc/check_uplink_validity()
	return 1

/obj/vv_get_dropdown()
	. = ..()
	VV_DROPDOWN_OPTION("", "---")
	VV_DROPDOWN_OPTION(VV_HK_MASS_DEL_TYPE, "Delete all of type")
	VV_DROPDOWN_OPTION(VV_HK_OSAY, "Object Say")
	VV_DROPDOWN_OPTION(VV_HK_ARMOR_MOD, "Modify armor values")

/obj/vv_do_topic(list/href_list)
	if(!(. = ..()))
		return
	if(href_list[VV_HK_OSAY])
		if(check_rights(R_FUN, FALSE))
			usr.client.object_say(src)
	if(href_list[VV_HK_ARMOR_MOD])
		var/list/pickerlist = list()
		var/list/armorlist = armor.getList()

		for (var/i in armorlist)
			pickerlist += list(list("value" = armorlist[i], "name" = i))

		var/list/result = presentpicker(usr, "Modify armor", "Modify armor: [src]", Button1="Save", Button2 = "Cancel", Timeout=FALSE, inputtype = "text", values = pickerlist)

		if (islist(result))
			if (result["button"] != 2) // If the user pressed the cancel button
				// text2num conveniently returns a null on invalid values
				armor = armor.setRating(melee = text2num(result["values"][MELEE]),\
			                  bullet = text2num(result["values"][BULLET]),\
			                  laser = text2num(result["values"][LASER]),\
			                  energy = text2num(result["values"][ENERGY]),\
			                  bomb = text2num(result["values"][BOMB]),\
			                  bio = text2num(result["values"][BIO]),\
			                  fire = text2num(result["values"][FIRE]),\
			                  acid = text2num(result["values"][ACID]))
				log_admin("[key_name(usr)] modified the armor on [src] ([type]) to melee: [armor.melee], bullet: [armor.bullet], laser: [armor.laser], energy: [armor.energy], bomb: [armor.bomb], bio: [armor.bio], fire: [armor.fire], acid: [armor.acid]")
				message_admins(span_notice("[key_name_admin(usr)] modified the armor on [src] ([type]) to melee: [armor.melee], bullet: [armor.bullet], laser: [armor.laser], energy: [armor.energy], bomb: [armor.bomb], bio: [armor.bio], fire: [armor.fire], acid: [armor.acid]"))
	if(href_list[VV_HK_MASS_DEL_TYPE])
		if(check_rights(R_DEBUG|R_SERVER))
			var/action_type = tgui_alert(usr, "Strict type ([type]) or type and all subtypes?",,list("Strict type","Type and subtypes","Cancel"))
			if(action_type == "Cancel" || !action_type)
				return

			if(tgui_alert(usr, "Are you really sure you want to delete all objects of type [type]?",,list("Yes","No")) != "Yes")
				return

			if(tgui_alert(usr, "Second confirmation required. Delete?",,list("Yes","No")) != "Yes")
				return

			var/O_type = type
			switch(action_type)
				if("Strict type")
					var/i = 0
					for(var/obj/Obj in world)
						if(Obj.type == O_type)
							i++
							qdel(Obj)
						CHECK_TICK
					if(!i)
						to_chat(usr, "No objects of this type exist")
						return
					log_admin("[key_name(usr)] deleted all objects of type [O_type] ([i] objects deleted) ")
					message_admins(span_notice("[key_name(usr)] deleted all objects of type [O_type] ([i] objects deleted) "))
				if("Type and subtypes")
					var/i = 0
					for(var/obj/Obj in world)
						if(istype(Obj,O_type))
							i++
							qdel(Obj)
						CHECK_TICK
					if(!i)
						to_chat(usr, "No objects of this type exist")
						return
					log_admin("[key_name(usr)] deleted all objects of type or subtype of [O_type] ([i] objects deleted) ")
					message_admins(span_notice("[key_name(usr)] deleted all objects of type or subtype of [O_type] ([i] objects deleted) "))

/obj/examine(mob/user)
	. = ..()
	if(obj_flags & UNIQUE_RENAME)
		. += span_notice("Use a pen on it to rename it or change its description.")
	if(unique_reskin && !current_skin)
		. += span_notice("Alt-click it to reskin it.")

/obj/AltClick(mob/user)
	. = ..()
	if(unique_reskin && !current_skin && user.canUseTopic(src, BE_CLOSE, NO_DEXTERITY))
		reskin_obj(user)

/**
 * Reskins object based on a user's choice
 *
 * Arguments:
 * * M The mob choosing a reskin option
 */
/obj/proc/reskin_obj(mob/M)
	if(!LAZYLEN(unique_reskin))
		return

	var/list/items = list()
	for(var/reskin_option in unique_reskin)
		var/image/item_image = image(icon = src.icon, icon_state = unique_reskin[reskin_option])
		items += list("[reskin_option]" = item_image)
	sort_list(items)

	var/pick = show_radial_menu(M, src, items, custom_check = CALLBACK(src, .proc/check_reskin_menu, M), radius = 38, require_near = TRUE)
	if(!pick)
		return
	if(!unique_reskin[pick])
		return
	current_skin = pick
	icon_state = unique_reskin[pick]
	to_chat(M, "[src] is now skinned as '[pick].'")

/**
 * Checks if we are allowed to interact with a radial menu for reskins
 *
 * Arguments:
 * * user The mob interacting with the menu
 */
/obj/proc/check_reskin_menu(mob/user)
	if(QDELETED(src))
		return FALSE
	if(current_skin)
		return FALSE
	if(!istype(user))
		return FALSE
	if(user.incapacitated())
		return FALSE
	return TRUE

/obj/analyzer_act(mob/living/user, obj/item/I)
	if(atmosanalyzer_scan(user, src))
		return TRUE
	return ..()

/obj/proc/plunger_act(obj/item/plunger/P, mob/living/user, reinforced)
	return

// Should move all contained objects to it's location.
/obj/proc/dump_contents()
	CRASH("Unimplemented.")

/obj/handle_ricochet(obj/projectile/P)
	. = ..()
	if(. && receive_ricochet_damage_coeff)
		take_damage(P.damage * receive_ricochet_damage_coeff, P.damage_type, P.flag, 0, turn(P.dir, 180), P.armour_penetration) // pass along receive_ricochet_damage_coeff damage to the structure for the ricochet

/obj/update_overlays()
	. = ..()
	if(resistance_flags & ON_FIRE)
		. += custom_fire_overlay ? custom_fire_overlay : GLOB.fire_overlay

/// Handles exposing an object to reagents.
/obj/expose_reagents(list/reagents, datum/reagents/source, methods=TOUCH, volume_modifier=1, show_message=TRUE)
	. = ..()
	if(. & COMPONENT_NO_EXPOSE_REAGENTS)
		return

	SEND_SIGNAL(source, COMSIG_REAGENTS_EXPOSE_OBJ, src, reagents, methods, volume_modifier, show_message)
	for(var/reagent in reagents)
		var/datum/reagent/R = reagent
		. |= R.expose_obj(src, reagents[R])