remove plasma contamination mechanic (#8538)

code/ZAS/Plasma.dm

@@ -5,13 +5,9 @@ var/image/contamination_overlay = image('icons/effects/contamination.dmi')
 	var/PLASMA_DMG_NAME = "Plasma Damage Amount"
 	var/PLASMA_DMG_DESC = "Self Descriptive"
 
-	var/CLOTH_CONTAMINATION = 1
-	var/CLOTH_CONTAMINATION_NAME = "Cloth Contamination"
-	var/CLOTH_CONTAMINATION_DESC = "If this is on, plasma does damage by getting into cloth."
-
 	var/PLASMAGUARD_ONLY = 0
 	var/PLASMAGUARD_ONLY_NAME = "\"PlasmaGuard Only\""
-	var/PLASMAGUARD_ONLY_DESC = "If this is on, only biosuits and spacesuits protect against contamination and ill effects."
+	var/PLASMAGUARD_ONLY_DESC = "If this is on, only biosuits and spacesuits protect against ill effects."
 
 	var/GENETIC_CORRUPTION = 0
 	var/GENETIC_CORRUPTION_NAME = "Genetic Corruption Chance"
@@ -25,10 +21,6 @@ var/image/contamination_overlay = image('icons/effects/contamination.dmi')
 	var/EYE_BURNS_NAME = "Eye Burns"
 	var/EYE_BURNS_DESC = "Plasma burns the eyes of anyone not wearing eye protection."
 
-	var/CONTAMINATION_LOSS = 0.02
-	var/CONTAMINATION_LOSS_NAME = "Contamination Loss"
-	var/CONTAMINATION_LOSS_DESC = "How much toxin damage is dealt from contaminated clothing" //Per tick?  ASK ARYN
-
 	var/PLASMA_HALLUCINATION = 0
 	var/PLASMA_HALLUCINATION_NAME = "Plasma Hallucination"
 	var/PLASMA_HALLUCINATION_DESC = "Does being in plasma cause you to hallucinate?"
@@ -38,50 +30,11 @@ var/image/contamination_overlay = image('icons/effects/contamination.dmi')
 	var/N2O_HALLUCINATION_DESC = "Does being in sleeping gas cause you to hallucinate?"
 
 
-obj/var/contaminated = 0
-
-
-/obj/item/proc/can_contaminate()
-	//Clothing and backpacks can be contaminated.
-	if(flags & PLASMAGUARD) return 0
-	else if(istype(src,/obj/item/storage/backpack)) return 0 //Cannot be washed :(
-	else if(istype(src,/obj/item/clothing)) return 1
-
-/obj/item/proc/contaminate()
-	//Do a contamination overlay? Temporary measure to keep contamination less deadly than it was.
-	if(!contaminated)
-		contaminated = 1
-		overlays += contamination_overlay
-
-/obj/item/proc/decontaminate()
-	contaminated = 0
-	overlays -= contamination_overlay
-
-/mob/proc/contaminate()
-
-/mob/living/carbon/human/contaminate()
-	//See if anything can be contaminated.
-
-	if(!pl_suit_protected())
-		suit_contamination()
-
-	if(!pl_head_protected())
-		if(prob(1)) suit_contamination() //Plasma can sometimes get through such an open suit.
-
-//Cannot wash backpacks currently.
-//	if(istype(back,/obj/item/storage/backpack))
-//		back.contaminate()
-
 /mob/proc/pl_effects()
 
 /mob/living/carbon/human/pl_effects()
 	//Handles all the bad things plasma can do.
-
-	//Contamination
-	if(vsc.plc.CLOTH_CONTAMINATION) contaminate()
-
-	//Anything else requires them to not be dead.
-	if(stat >= 2)
+	if(stat >= DEAD)
 		return
 
 	//Burn skin if exposed.
@@ -123,12 +76,8 @@ obj/var/contaminated = 0
 
 /mob/living/carbon/human/proc/pl_head_protected()
 	//Checks if the head is adequately sealed.
-	if(head)
-		if(vsc.plc.PLASMAGUARD_ONLY)
-			if(head.flags & PLASMAGUARD)
-				return 1
-		else if(head.body_parts_covered & EYES)
-			return 1
+	if(head && (head.body_parts_covered & EYES))
+		return 1
 	return 0
 
 /mob/living/carbon/human/proc/pl_suit_protected()
@@ -137,17 +86,9 @@ obj/var/contaminated = 0
 	for(var/obj/item/protection in list(wear_suit, gloves, shoes))
 		if(!protection)
 			continue
-		if(vsc.plc.PLASMAGUARD_ONLY && !(protection.flags & PLASMAGUARD))
-			return 0
 		coverage |= protection.body_parts_covered
 
 	if(vsc.plc.PLASMAGUARD_ONLY)
 		return 1
 
 	return BIT_TEST_ALL(coverage, UPPER_TORSO|LOWER_TORSO|LEGS|ARMS)
-
-/mob/living/carbon/human/proc/suit_contamination()
-	//Runs over the things that can be contaminated and does so.
-	if(w_uniform) w_uniform.contaminate()
-	if(shoes) shoes.contaminate()
-	if(gloves) gloves.contaminate()

code/ZAS/Variable Settings.dm

@@ -199,40 +199,32 @@ var/global/vs_control/vsc = new
 		return
 	switch(def)
 		if("Plasma - Standard")
-			plc.CLOTH_CONTAMINATION = 1 //If this is on, plasma does damage by getting into cloth.
 			plc.PLASMAGUARD_ONLY = 0
 			plc.GENETIC_CORRUPTION = 0 //Chance of genetic corruption as well as toxic damage, X in 1000.
 			plc.SKIN_BURNS = 0       //Plasma has an effect similar to mustard gas on the un-suited.
 			plc.EYE_BURNS = 1 //Plasma burns the eyes of anyone not wearing eye protection.
 			plc.PLASMA_HALLUCINATION = 0
-			plc.CONTAMINATION_LOSS = 0.02
 
 		if("Plasma - Low Hazard")
-			plc.CLOTH_CONTAMINATION = 0 //If this is on, plasma does damage by getting into cloth.
 			plc.PLASMAGUARD_ONLY = 0
 			plc.GENETIC_CORRUPTION = 0 //Chance of genetic corruption as well as toxic damage, X in 1000
 			plc.SKIN_BURNS = 0       //Plasma has an effect similar to mustard gas on the un-suited.
 			plc.EYE_BURNS = 1 //Plasma burns the eyes of anyone not wearing eye protection.
 			plc.PLASMA_HALLUCINATION = 0
-			plc.CONTAMINATION_LOSS = 0.01
 
 		if("Plasma - High Hazard")
-			plc.CLOTH_CONTAMINATION = 1 //If this is on, plasma does damage by getting into cloth.
 			plc.PLASMAGUARD_ONLY = 0
 			plc.GENETIC_CORRUPTION = 0 //Chance of genetic corruption as well as toxic damage, X in 1000.
 			plc.SKIN_BURNS = 1       //Plasma has an effect similar to mustard gas on the un-suited.
 			plc.EYE_BURNS = 1 //Plasma burns the eyes of anyone not wearing eye protection.
 			plc.PLASMA_HALLUCINATION = 1
-			plc.CONTAMINATION_LOSS = 0.05
 
 		if("Plasma - Oh Shit!")
-			plc.CLOTH_CONTAMINATION = 1 //If this is on, plasma does damage by getting into cloth.
 			plc.PLASMAGUARD_ONLY = 1
 			plc.GENETIC_CORRUPTION = 5 //Chance of genetic corruption as well as toxic damage, X in 1000.
 			plc.SKIN_BURNS = 1       //Plasma has an effect similar to mustard gas on the un-suited.
 			plc.EYE_BURNS = 1 //Plasma burns the eyes of anyone not wearing eye protection.
 			plc.PLASMA_HALLUCINATION = 1
-			plc.CONTAMINATION_LOSS = 0.075
 
 		if("ZAS - Normal")
 			airflow_lightest_pressure = 20
@@ -312,12 +304,10 @@ var/global/vs_control/vsc = new
 			connection_temperature_delta 	= initial(connection_temperature_delta)
 
 			plc.PLASMA_DMG 					= initial(plc.PLASMA_DMG)
-			plc.CLOTH_CONTAMINATION 		= initial(plc.CLOTH_CONTAMINATION)
 			plc.PLASMAGUARD_ONLY 			= initial(plc.PLASMAGUARD_ONLY)
 			plc.GENETIC_CORRUPTION 			= initial(plc.GENETIC_CORRUPTION)
 			plc.SKIN_BURNS 					= initial(plc.SKIN_BURNS)
 			plc.EYE_BURNS 					= initial(plc.EYE_BURNS)
-			plc.CONTAMINATION_LOSS 			= initial(plc.CONTAMINATION_LOSS)
 			plc.PLASMA_HALLUCINATION 		= initial(plc.PLASMA_HALLUCINATION)
 			plc.N2O_HALLUCINATION 			= initial(plc.N2O_HALLUCINATION)
 

code/__DEFINES/items_clothing.dm

@@ -64,7 +64,7 @@
 #define CONDUCT					0x2   	// Conducts electricity. (metal etc.)
 #define ON_BORDER				0x4   	// Item has priority to check when entering or leaving.
 #define NOBLOODY				0x8   	// Used for items if they don't want to get a blood overlay.
-#define PLASMAGUARD				0x10 	// Does not get contaminated by plasma.
+//#define VACANT				0x10 	// Free Real Estate, uncomment and use for whatever
 #define PROXMOVE				0x20  	// Does this object require proximity checking in Enter()?
 #define SILENT					0x40 	// Sneaky shoes and silenced tools
 #define LOUD					0x80 	// Loud as hell tools

code/game/machinery/washing_machine.dm

@@ -42,14 +42,10 @@
 
 //A washing machine cleans away most of the bad effects of old clothes
 //Armor penalties and name/desc changes are left
-/obj/machinery/washing_machine/proc/wash(atom/A)
-	A.clean_blood()
-	if(isobj(A))
-		var/obj/O = A
-		if(istype(A, /obj/item))
-			var/obj/item/I = A
-			I.decontaminate()
-		O.make_young()
+/obj/machinery/washing_machine/proc/wash(obj/laundry)
+	laundry.clean_blood()
+	if(istype(laundry))
+		laundry.make_young()
 
 /obj/machinery/washing_machine/Process()
 	if(tick > 0 && (state == WASHSTATE_RUNNING))

code/game/turfs/turf.dm

@@ -241,18 +241,6 @@
 							step(M, M.dir)
 							sleep(1)
 
-		// TODO: Contamination is ancient and utterly useless mechanic, remove in a separate PR --KIROV
-		else if(isitem(Obj) && vsc.plc.CLOTH_CONTAMINATION)
-			var/obj/item/I = Obj
-			if(I.can_contaminate())
-				var/datum/gas_mixture/env = return_air(1)
-				if(!env)
-					return
-				for(var/g in env.gas)
-					if(gas_data.flags[g] & XGM_GAS_CONTAMINANT && env.gas[g] > gas_data.overlay_limit[g] + 1)
-						I.contaminate()
-						break
-
 	// If an opaque movable atom moves around we need to potentially update visibility.
 		if(Obj && Obj.opacity)
 			has_opaque_atom = TRUE // Make sure to do this before reconsider_lights(), incase we're on instant updates. Guaranteed to be on in this case.

code/modules/clothing/spacesuits/rig/rig.dm

@@ -1041,20 +1041,6 @@
 	if(glasses)
 		glasses.clean_blood()
 
-/obj/item/rig/decontaminate()
-	..()
-	if(chest)
-		chest.decontaminate()
-	if(boots)
-		boots.decontaminate()
-	if(helmet)
-		helmet.decontaminate()
-	if(gloves)
-		gloves.decontaminate()
-	var/obj/item/glasses = getCurrentGlasses()
-	if(glasses)
-		glasses.decontaminate()
-
 /obj/item/rig/make_young()
 	..()
 	if(chest)

code/modules/clothing/spacesuits/void/void.dm

@@ -77,13 +77,6 @@
 
 	return ..()
 
-/obj/item/clothing/suit/space/void/decontaminate()
-	if(boots) boots.decontaminate()
-	if(helmet) helmet.decontaminate()
-	if(tank) tank.decontaminate()
-
-	return ..()
-
 /obj/item/clothing/suit/space/void/make_young()
 	..()
 	if(boots) boots.make_young()

code/modules/clothing/suits/storage.dm

@@ -79,11 +79,6 @@
 
 	return ..()
 
-/obj/item/clothing/suit/storage/toggle/robe/decontaminate()
-	if(hood) hood.decontaminate()
-
-	return ..()
-
 /obj/item/clothing/suit/storage/toggle/robe/make_young()
 	..()
 	if(hood) hood.make_young()
@@ -126,7 +121,7 @@
 	set name = "Toggle Hood"
 	set category = "Object"
 	set src in usr
-		
+
 	if(!isliving(loc))
 		return
 

code/modules/mob/living/carbon/human/life.dm

@@ -750,13 +750,6 @@
 			if(stats.getPerk(PERK_ALCOHOLIC))
 				stats.removePerk(PERK_ALCOHOLIC_ACTIVE)
 
-		var/total_plasmaloss = 0
-		for(var/obj/item/I in src)
-			if(I.contaminated)
-				total_plasmaloss += vsc.plc.CONTAMINATION_LOSS
-		if(!(status_flags & GODMODE))
-			bloodstr.add_reagent("plasma", total_plasmaloss)
-
 	if(status_flags & GODMODE)
 		return FALSE	//godmode
 

code/modules/scrap/oldificator.dm

@@ -297,8 +297,6 @@
 			cold_protection = rand(0, round(cold_protection * 0.5))
 
 		if(!low_quality_oldification)
-			if(prob(20))
-				contaminate()
 			if(prob(15))
 				add_blood()
 		if(prob(60)) // I mean, the thing is ew gross.