Revert "PLASE"

This reverts commit 8af225e6e3.

code/game/objects/effects/decals/cleanable.dm

@@ -0,0 +1,96 @@
+/obj/effect/decal/cleanable
+	gender = PLURAL
+	layer = ABOVE_NORMAL_TURF_LAYER
+	var/list/random_icon_states = null
+	var/blood_state = "" //I'm sorry but cleanable/blood code is ass, and so is blood_DNA
+	var/bloodiness = 0 //0-100, amount of blood in this decal, used for making footprints and affecting the alpha of bloody footprints
+	var/mergeable_decal = TRUE //when two of these are on a same tile or do we need to merge them into just one?
+
+/obj/effect/decal/cleanable/Initialize(mapload, list/datum/disease/diseases)
+	. = ..()
+	LAZYINITLIST(blood_DNA) //Kinda needed
+	if (random_icon_states && (icon_state == initial(icon_state)) && length(random_icon_states) > 0)
+		icon_state = pick(random_icon_states)
+	create_reagents(300)
+	if(loc && isturf(loc))
+		for(var/obj/effect/decal/cleanable/C in loc)
+			if(C != src && C.type == type && !QDELETED(C))
+				if (replace_decal(C))
+					return INITIALIZE_HINT_QDEL
+
+	if(LAZYLEN(diseases))
+		var/list/datum/disease/diseases_to_add = list()
+		for(var/datum/disease/D in diseases)
+			if(D.spread_flags & DISEASE_SPREAD_CONTACT_FLUIDS)
+				diseases_to_add += D
+		if(LAZYLEN(diseases_to_add))
+			AddComponent(/datum/component/infective, diseases_to_add)
+
+/obj/effect/decal/cleanable/proc/replace_decal(obj/effect/decal/cleanable/C) // Returns true if we should give up in favor of the pre-existing decal
+	if(mergeable_decal)
+		qdel(C)
+
+/obj/effect/decal/cleanable/attackby(obj/item/W, mob/user, params)
+	if(istype(W, /obj/item/reagent_containers/glass) || istype(W, /obj/item/reagent_containers/food/drinks))
+		if(src.reagents && W.reagents)
+			. = 1 //so the containers don't splash their content on the src while scooping.
+			if(!src.reagents.total_volume)
+				to_chat(user, "<span class='notice'>[src] isn't thick enough to scoop up!</span>")
+				return
+			if(W.reagents.total_volume >= W.reagents.maximum_volume)
+				to_chat(user, "<span class='notice'>[W] is full!</span>")
+				return
+			to_chat(user, "<span class='notice'>You scoop up [src] into [W]!</span>")
+			reagents.trans_to(W, reagents.total_volume)
+			if(!reagents.total_volume) //scooped up all of it
+				qdel(src)
+				return
+	if(W.get_temperature()) //todo: make heating a reagent holder proc
+		if(istype(W, /obj/item/clothing/mask/cigarette))
+			return
+		else
+			var/hotness = W.get_temperature()
+			reagents.expose_temperature(hotness)
+			to_chat(user, "<span class='notice'>You heat [name] with [W]!</span>")
+	else
+		return ..()
+
+/obj/effect/decal/cleanable/ex_act()
+	if(reagents)
+		for(var/datum/reagent/R in reagents.reagent_list)
+			R.on_ex_act()
+	..()
+
+/obj/effect/decal/cleanable/fire_act(exposed_temperature, exposed_volume)
+	if(reagents)
+		reagents.expose_temperature(exposed_temperature)
+	..()
+
+
+//Add "bloodiness" of this blood's type, to the human's shoes
+//This is on /cleanable because fuck this ancient mess
+/obj/effect/decal/cleanable/Crossed(atom/movable/O)
+	..()
+	if(ishuman(O))
+		var/mob/living/carbon/human/H = O
+		if(H.shoes && blood_state && bloodiness && !HAS_TRAIT(H, TRAIT_LIGHT_STEP))
+			var/obj/item/clothing/shoes/S = H.shoes
+			var/add_blood = 0
+			if(bloodiness >= BLOOD_GAIN_PER_STEP)
+				add_blood = BLOOD_GAIN_PER_STEP
+			else
+				add_blood = bloodiness
+			bloodiness -= add_blood
+			S.bloody_shoes[blood_state] = min(MAX_SHOE_BLOODINESS,S.bloody_shoes[blood_state]+add_blood)
+			if(blood_DNA && blood_DNA.len)
+				S.add_blood_DNA(blood_DNA)
+				S.add_blood_overlay()
+			S.blood_state = blood_state
+			update_icon()
+			H.update_inv_shoes()
+
+/obj/effect/decal/cleanable/proc/can_bloodcrawl_in()
+	if((blood_state != BLOOD_STATE_OIL) && (blood_state != BLOOD_STATE_NOT_BLOODY))
+		return bloodiness
+	else
+		return FALSE

code/game/objects/effects/decals/cleanable/aliens.dm

@@ -0,0 +1,70 @@
+
+/obj/effect/decal/cleanable/blood/xeno
+	name = "xeno blood"
+	desc = "It's green and acidic. It looks like... <i>blood?</i>"
+	color = BLOOD_COLOR_XENO
+
+/obj/effect/decal/cleanable/blood/splatter/xeno
+	color = BLOOD_COLOR_XENO
+
+/obj/effect/decal/cleanable/blood/gibs/xeno
+	color = BLOOD_COLOR_XENO
+	gibs_reagent_id = "liquidxenogibs"
+	gibs_bloodtype = "X*"
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/Initialize(mapload, list/datum/disease/diseases)
+	. = ..()
+	update_icon()
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/update_icon()
+	add_atom_colour(blood_DNA_to_color(), FIXED_COLOUR_PRIORITY)
+	cut_overlays()
+	var/mutable_appearance/flesh = mutable_appearance(icon, "[icon_state]x_flesh")
+	flesh.appearance_flags = RESET_COLOR
+	flesh.color = body_colors
+	add_overlay(flesh)
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/streak(list/directions)
+	set waitfor = FALSE
+	var/list/diseases = list()
+	SEND_SIGNAL(src, COMSIG_GIBS_STREAK, directions, diseases)
+	var/direction = pick(directions)
+	for(var/i in 0 to pick(0, 200; 1, 150; 2, 50))
+		sleep(2)
+		if(i > 0)
+			var/obj/effect/decal/cleanable/blood/splatter/xeno/splat = new /obj/effect/decal/cleanable/blood/splatter/xeno(loc, diseases)
+			splat.transfer_blood_dna(blood_DNA, diseases)
+		if(!step_to(src, get_step(src, direction), 0))
+			break
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/up
+	random_icon_states = list("gib1", "gib2", "gib3", "gib4", "gib5", "gib6","gibup1","gibup1","gibup1")
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/down
+	random_icon_states = list("gib1", "gib2", "gib3", "gib4", "gib5", "gib6","gibdown1","gibdown1","gibdown1")
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/body
+	random_icon_states = list("gibhead", "gibtorso")
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/torso
+	random_icon_states = list("gibtorso")
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/limb
+	random_icon_states = list("gibleg", "gibarm")
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/core
+	random_icon_states = list("gibmid1", "gibmid2", "gibmid3")
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/larva
+	random_icon_states = list("xgiblarva1", "xgiblarva2")
+
+/obj/effect/decal/cleanable/blood/gibs/xeno/larva/body
+	random_icon_states = list("xgiblarvahead", "xgiblarvatorso")
+
+/obj/effect/decal/cleanable/blood/xtracks
+	icon_state = "tracks"
+	random_icon_states = null
+
+/obj/effect/decal/cleanable/blood/xtracks/Initialize()
+	add_blood_DNA(list("UNKNOWN DNA" = "X*"))
+	. = ..()

code/game/objects/effects/decals/cleanable/humans.dm

@@ -0,0 +1,194 @@
+/obj/effect/decal/cleanable/blood
+	name = "blood"
+	desc = "It's gooey. Perhaps it's the chef's cooking?"
+	icon = 'icons/effects/blood.dmi'
+	icon_state = "floor1"
+	random_icon_states = list("floor1", "floor2", "floor3", "floor4", "floor5", "floor6", "floor7")
+	blood_state = BLOOD_STATE_BLOOD
+	bloodiness = MAX_SHOE_BLOODINESS
+	color = BLOOD_COLOR_HUMAN //default so we don't have white splotches everywhere.
+
+/obj/effect/decal/cleanable/blood/replace_decal(obj/effect/decal/cleanable/blood/C)
+	if (C.blood_DNA)
+		blood_DNA |= C.blood_DNA.Copy()
+	update_icon()
+	..()
+
+/obj/effect/decal/cleanable/blood/transfer_blood_dna()
+	..()
+	update_icon()
+
+/obj/effect/decal/cleanable/blood/transfer_mob_blood_dna()
+	. = ..()
+	update_icon()
+
+/obj/effect/decal/cleanable/blood/update_icon()
+	color = blood_DNA_to_color()
+
+/obj/effect/decal/cleanable/blood/old
+	name = "dried blood"
+	desc = "Looks like it's been here a while. Eew."
+	bloodiness = 0
+
+/obj/effect/decal/cleanable/blood/old/Initialize(mapload, list/datum/disease/diseases)
+	..()
+	icon_state += "-old"
+	add_blood_DNA(list("Non-human DNA" = "A+"))
+
+/obj/effect/decal/cleanable/blood/splats
+	random_icon_states = list("gibbl1", "gibbl2", "gibbl3", "gibbl4", "gibbl5")
+
+/obj/effect/decal/cleanable/blood/splatter
+	random_icon_states = list("splatter1", "splatter2", "splatter3", "splatter4", "splatter5")
+
+/obj/effect/decal/cleanable/blood/tracks
+	icon_state = "tracks"
+	desc = "They look like tracks left by wheels."
+	random_icon_states = null
+
+/obj/effect/decal/cleanable/trail_holder //not a child of blood on purpose
+	name = "blood"
+	icon_state = "ltrails_1"
+	desc = "Your instincts say you shouldn't be following these."
+	random_icon_states = null
+	var/list/existing_dirs = list()
+
+/obj/effect/decal/cleanable/trail_holder/update_icon()
+	color = blood_DNA_to_color()
+
+/obj/effect/cleanable/trail_holder/Initialize()
+	. = ..()
+	update_icon()
+
+/obj/effect/decal/cleanable/trail_holder/can_bloodcrawl_in()
+	return TRUE
+
+/obj/effect/decal/cleanable/trail_holder/transfer_blood_dna()
+	..()
+	update_icon()
+
+/obj/effect/decal/cleanable/trail_holder/transfer_mob_blood_dna()
+	. = ..()
+	update_icon()
+
+//BLOODY FOOTPRINTS
+/obj/effect/decal/cleanable/blood/footprints
+	name = "footprints"
+	icon = 'icons/effects/footprints.dmi'
+	icon_state = "nothingwhatsoever"
+	desc = "WHOSE FOOTPRINTS ARE THESE?"
+	random_icon_states = null
+	var/entered_dirs = 0
+	var/exited_dirs = 0
+	blood_state = BLOOD_STATE_BLOOD //the icon state to load images from
+	var/list/shoe_types = list()
+
+/obj/effect/decal/cleanable/blood/footprints/Crossed(atom/movable/O)
+	if(ishuman(O))
+		var/mob/living/carbon/human/H = O
+		var/obj/item/clothing/shoes/S = H.shoes
+		if(S && S.bloody_shoes[blood_state])
+			if(color != bloodtype_to_color(S.last_bloodtype))
+				return
+			S.bloody_shoes[blood_state] = max(S.bloody_shoes[blood_state] - BLOOD_LOSS_PER_STEP, 0)
+			shoe_types |= S.type
+			if (!(entered_dirs & H.dir))
+				entered_dirs |= H.dir
+				update_icon()
+
+/obj/effect/decal/cleanable/blood/footprints/Uncrossed(atom/movable/O)
+	if(ishuman(O))
+		var/mob/living/carbon/human/H = O
+		var/obj/item/clothing/shoes/S = H.shoes
+		if(S && S.bloody_shoes[blood_state])
+			if(color != bloodtype_to_color(S.last_bloodtype))//last entry - we check its color
+				return
+			S.bloody_shoes[blood_state] = max(S.bloody_shoes[blood_state] - BLOOD_LOSS_PER_STEP, 0)
+			shoe_types  |= S.type
+			if (!(exited_dirs & H.dir))
+				exited_dirs |= H.dir
+				update_icon()
+
+/obj/effect/decal/cleanable/blood/footprints/update_icon()
+	..()
+	cut_overlays()
+	for(var/Ddir in GLOB.cardinals)
+		if(entered_dirs & Ddir)
+			var/image/bloodstep_overlay = GLOB.bloody_footprints_cache["entered-[blood_state]-[Ddir]"]
+			if(!bloodstep_overlay)
+				GLOB.bloody_footprints_cache["entered-[blood_state]-[Ddir]"] = bloodstep_overlay = image(icon, "[blood_state]1", dir = Ddir)
+			add_overlay(bloodstep_overlay)
+		if(exited_dirs & Ddir)
+			var/image/bloodstep_overlay = GLOB.bloody_footprints_cache["exited-[blood_state]-[Ddir]"]
+			if(!bloodstep_overlay)
+				GLOB.bloody_footprints_cache["exited-[blood_state]-[Ddir]"] = bloodstep_overlay = image(icon, "[blood_state]2", dir = Ddir)
+			add_overlay(bloodstep_overlay)
+
+	alpha = BLOODY_FOOTPRINT_BASE_ALPHA + bloodiness
+
+
+/obj/effect/decal/cleanable/blood/footprints/examine(mob/user)
+	. = ..()
+	if(shoe_types.len)
+		. += "You recognise the footprints as belonging to:\n"
+		for(var/shoe in shoe_types)
+			var/obj/item/clothing/shoes/S = shoe
+			. += "some <B>[initial(S.name)]</B> [icon2html(initial(S.icon), user)]\n"
+
+	to_chat(user, .)
+
+/obj/effect/decal/cleanable/blood/footprints/replace_decal(obj/effect/decal/cleanable/C)
+	if(blood_state != C.blood_state) //We only replace footprints of the same type as us
+		return
+	if(color != C.color)
+		return
+	..()
+
+/obj/effect/decal/cleanable/blood/footprints/can_bloodcrawl_in()
+	if((blood_state != BLOOD_STATE_OIL) && (blood_state != BLOOD_STATE_NOT_BLOODY))
+		return TRUE
+	return FALSE
+
+/* Eventually TODO: make snowflake trails like baycode's
+/obj/effect/decal/cleanable/blood/footprints/tracks/shoe
+	name = "footprints"
+	desc = "They look like tracks left by footwear."
+	icon_state = FOOTPRINT_SHOE
+	print_state = FOOTPRINT_SHOE
+
+/obj/effect/decal/cleanable/blood/footprints/tracks/foot
+	name = "footprints"
+	desc = "They look like tracks left by a bare foot."
+	icon_state = FOOTPRINT_FOOT
+	print_state = FOOTPRINT_FOOT
+
+/obj/effect/decal/cleanable/blood/footprints/tracks/snake
+	name = "tracks"
+	desc = "They look like tracks left by a giant snake."
+	icon_state = FOOTPRINT_SNAKE
+	print_state = FOOTPRINT_SNAKE
+
+/obj/effect/decal/cleanable/blood/footprints/tracks/paw
+	name = "footprints"
+	desc = "They look like tracks left by paws."
+	icon_state = FOOTPRINT_PAW
+	print_state = FOOTPRINT_PAW
+
+/obj/effect/decal/cleanable/blood/footprints/tracks/claw
+	name = "footprints"
+	desc = "They look like tracks left by claws."
+	icon_state = FOOTPRINT_CLAW
+	print_state = FOOTPRINT_CLAW
+
+/obj/effect/decal/cleanable/blood/footprints/tracks/wheels
+	name = "tracks"
+	desc = "They look like tracks left by wheels."
+	gender = PLURAL
+	icon_state = FOOTPRINT_WHEEL
+	print_state = FOOTPRINT_WHEEL
+
+/obj/effect/decal/cleanable/blood/footprints/tracks/body
+	name = "trails"
+	desc = "A trail left by something being dragged."
+	icon_state = FOOTPRINT_DRAG
+	print_state = FOOTPRINT_DRAG */

code/game/objects/effects/decals/cleanable/robots.dm

@@ -0,0 +1,65 @@
+// Note: BYOND is object oriented. There is no reason for this to be copy/pasted blood code.
+
+/obj/effect/decal/cleanable/robot_debris
+	name = "robot debris"
+	desc = "It's a useless heap of junk... <i>or is it?</i>"
+	icon = 'icons/mob/robots.dmi'
+	icon_state = "gib1"
+	layer = LOW_OBJ_LAYER
+	random_icon_states = list("gib1", "gib2", "gib3", "gib4", "gib5", "gib6", "gib7")
+	blood_state = BLOOD_STATE_OIL
+	bloodiness = BLOOD_AMOUNT_PER_DECAL
+	mergeable_decal = FALSE
+
+/obj/effect/decal/cleanable/robot_debris/Initialize(mapload, list/datum/disease/diseases)
+	. = ..()
+	reagents.add_reagent("liquidoilgibs", 5)
+
+/obj/effect/decal/cleanable/robot_debris/proc/streak(list/directions)
+	set waitfor = 0
+	var/direction = pick(directions)
+	for (var/i = 0, i < pick(1, 200; 2, 150; 3, 50), i++)
+		sleep(2)
+		if (i > 0)
+			if (prob(40))
+				new /obj/effect/decal/cleanable/oil/streak(src.loc)
+			else if (prob(10))
+				var/datum/effect_system/spark_spread/s = new /datum/effect_system/spark_spread
+				s.set_up(3, 1, src)
+				s.start()
+		if (!step_to(src, get_step(src, direction), 0))
+			break
+
+/obj/effect/decal/cleanable/robot_debris/ex_act()
+	return
+
+/obj/effect/decal/cleanable/robot_debris/limb
+	random_icon_states = list("gibarm", "gibleg")
+
+/obj/effect/decal/cleanable/robot_debris/up
+	random_icon_states = list("gib1", "gib2", "gib3", "gib4", "gib5", "gib6", "gib7","gibup1","gibup1")
+
+/obj/effect/decal/cleanable/robot_debris/down
+	random_icon_states = list("gib1", "gib2", "gib3", "gib4", "gib5", "gib6", "gib7","gibdown1","gibdown1")
+
+/obj/effect/decal/cleanable/oil
+	name = "motor oil"
+	desc = "It's black and greasy. Looks like Beepsky made another mess."
+	icon = 'icons/mob/robots.dmi'
+	icon_state = "floor1"
+	random_icon_states = list("floor1", "floor2", "floor3", "floor4", "floor5", "floor6", "floor7")
+	blood_state = BLOOD_STATE_OIL
+	bloodiness = BLOOD_AMOUNT_PER_DECAL
+
+/obj/effect/decal/cleanable/oil/Initialize()
+	. = ..()
+	reagents.add_reagent("oil", 30)
+	reagents.add_reagent("liquidoilgibs", 5)
+
+/obj/effect/decal/cleanable/oil/streak
+	random_icon_states = list("streak1", "streak2", "streak3", "streak4", "streak5")
+
+/obj/effect/decal/cleanable/oil/slippery
+
+/obj/effect/decal/cleanable/oil/slippery/Initialize()
+	AddComponent(/datum/component/slippery, 80, (NO_SLIP_WHEN_WALKING | SLIDE))

code/game/objects/effects/decals/decal.dm

@@ -0,0 +1,48 @@
+/obj/effect/decal
+	name = "decal"
+	plane = FLOOR_PLANE
+	anchored = TRUE
+	resistance_flags = FIRE_PROOF | UNACIDABLE | ACID_PROOF
+	var/turf_loc_check = TRUE
+
+/obj/effect/decal/Initialize()
+	. = ..()
+	if(turf_loc_check && (!isturf(loc) || NeverShouldHaveComeHere(loc)))
+		return INITIALIZE_HINT_QDEL
+
+/obj/effect/decal/blob_act(obj/structure/blob/B)
+	if(B && B.loc == loc)
+		qdel(src)
+
+/obj/effect/decal/proc/NeverShouldHaveComeHere(turf/T)
+	return isclosedturf(T) || isgroundlessturf(T)
+
+/obj/effect/decal/ex_act(severity, target)
+	qdel(src)
+
+/obj/effect/decal/fire_act(exposed_temperature, exposed_volume)
+	if(!(resistance_flags & FIRE_PROOF)) //non fire proof decal or being burned by lava
+		qdel(src)
+
+/obj/effect/decal/HandleTurfChange(turf/T)
+	..()
+	if(T == loc && NeverShouldHaveComeHere(T))
+		qdel(src)
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/obj/effect/turf_decal
+	icon = 'icons/turf/decals.dmi'
+	icon_state = "warningline"
+	layer = TURF_DECAL_LAYER
+
+/obj/effect/turf_decal/Initialize()
+	..()
+	return INITIALIZE_HINT_QDEL
+
+/obj/effect/turf_decal/ComponentInitialize()
+	. = ..()
+	var/turf/T = loc
+	if(!istype(T)) //you know this will happen somehow
+		CRASH("Turf decal initialized in an object/nullspace")
+	T.AddComponent(/datum/component/decal, icon, icon_state, dir, CLEAN_GOD, color, null, null, alpha)

code/game/objects/effects/decals/turfdecal/weather.dm

@@ -0,0 +1,25 @@
+/obj/effect/turf_decal/weather
+	name = "sandy floor"
+	icon_state = "sandyfloor"
+
+/obj/effect/turf_decal/weather/snow
+	name = "snowy floor"
+	icon_state = "snowyfloor"
+
+/obj/effect/turf_decal/weather/snow/corner
+	name = "snow corner piece"
+	icon = 'icons/turf/snow.dmi'
+	icon_state = "snow_corner"
+
+/obj/effect/turf_decal/weather/dirt
+	name = "dirt siding"
+	icon = 'icons/turf/decals.dmi'
+	icon_state = "dirt_side"
+
+/obj/effect/turf_decal/weather/sand
+	name = "sand siding"
+	icon = 'icons/misc/beach.dmi'
+	icon_state = "sand_side"
+
+/obj/effect/turf_decal/weather/sand/light
+	icon_state = "lightsand_side"