Changes how fingerprints are applied to objects through gloves. (#65674)

code/__DEFINES/traits.dm

@@ -852,3 +852,6 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 
 /// Ignore Crew monitor Z levels
 #define TRAIT_MULTIZ_SUIT_SENSORS "multiz_suit_sensors"
+
+/// Ignores body_parts_covered during the add_fingerprint() proc. Works both on the person and the item in the glove slot.
+#define TRAIT_FINGERPRINT_PASSTHROUGH "fingerprint_passthrough"

code/datums/components/forensics.dm

@@ -84,9 +84,9 @@
 	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		add_fibers(H)
-		if(H.gloves) //Check if the gloves (if any) hide fingerprints
-			var/obj/item/clothing/gloves/G = H.gloves
-			if(G.transfer_prints)
+		var/obj/item/gloves = H.gloves
+		if(gloves) //Check if the gloves (if any) hide fingerprints
+			if(!(gloves.body_parts_covered & HANDS) || HAS_TRAIT(gloves, TRAIT_FINGERPRINT_PASSTHROUGH) || HAS_TRAIT(H, TRAIT_FINGERPRINT_PASSTHROUGH))
 				ignoregloves = TRUE
 			if(!ignoregloves)
 				H.gloves.add_fingerprint(H, TRUE) //ignoregloves = 1 to avoid infinite loop.

code/modules/clothing/gloves/_gloves.dm

@@ -8,7 +8,6 @@
 	slot_flags = ITEM_SLOT_GLOVES
 	attack_verb_continuous = list("challenges")
 	attack_verb_simple = list("challenge")
-	var/transfer_prints = FALSE
 	strip_delay = 20
 	equip_delay_other = 40
 	// Path variable. If defined, will produced the type through interaction with wirecutters.

code/modules/clothing/gloves/bone.dm

@@ -3,7 +3,6 @@
 	desc = "For when you're expecting to get slapped on the wrist. Offers modest protection to your arms."
 	icon_state = "bracers"
 	inhand_icon_state = "bracers"
-	transfer_prints = TRUE
 	strip_delay = 40
 	equip_delay_other = 20
 	body_parts_covered = ARMS

code/modules/clothing/gloves/color.dm

@@ -94,7 +94,7 @@
 	name = "fingerless insulated gloves"
 	icon_state = "yellowcut"
 	inhand_icon_state = "ygloves"
-	transfer_prints = TRUE
+	clothing_traits = list(TRAIT_FINGERPRINT_PASSTHROUGH)
 
 /obj/item/clothing/gloves/cut/heirloom
 	desc = "The old gloves your great grandfather stole from Engineering, many moons ago. They've seen some tough times recently."
@@ -116,13 +116,13 @@
 	desc = "Plain black gloves without fingertips for the hard working."
 	icon_state = "fingerless"
 	inhand_icon_state = "fingerless"
-	transfer_prints = TRUE
 	strip_delay = 40
 	equip_delay_other = 20
 	cold_protection = HANDS
 	min_cold_protection_temperature = GLOVES_MIN_TEMP_PROTECT
 	custom_price = PAYCHECK_ASSISTANT * 1.5
 	undyeable = TRUE
+	clothing_traits = list(TRAIT_FINGERPRINT_PASSTHROUGH)
 
 /obj/item/clothing/gloves/color/orange
 	name = "orange gloves"
@@ -220,8 +220,7 @@
 	inhand_icon_state = "latex"
 	siemens_coefficient = 0.3
 	permeability_coefficient = 0.01
-	clothing_traits = list(TRAIT_QUICK_CARRY)
-	transfer_prints = TRUE
+	clothing_traits = list(TRAIT_QUICK_CARRY, TRAIT_FINGERPRINT_PASSTHROUGH)
 	resistance_flags = NONE
 
 /obj/item/clothing/gloves/color/latex/nitrile
@@ -230,7 +229,6 @@
 	icon_state = "nitrile"
 	inhand_icon_state = "nitrilegloves"
 	clothing_traits = list(TRAIT_QUICKER_CARRY, TRAIT_FASTMED)
-	transfer_prints = FALSE
 
 /obj/item/clothing/gloves/color/infiltrator
 	name = "infiltrator gloves"
@@ -241,7 +239,6 @@
 	permeability_coefficient = 0.3
 	clothing_traits = list(TRAIT_QUICKER_CARRY)
 	resistance_flags = FIRE_PROOF | ACID_PROOF
-	transfer_prints = FALSE
 
 /obj/item/clothing/gloves/color/latex/engineering
 	name = "tinker's gloves"

code/modules/clothing/gloves/plasmaman.dm

@@ -22,7 +22,6 @@
 	icon_state = "nitrile"
 	inhand_icon_state = "nitrilegloves"
 	clothing_traits = list(TRAIT_QUICKER_CARRY, TRAIT_FASTMED)
-	transfer_prints = FALSE
 
 /obj/item/clothing/gloves/color/plasmaman/white
 	name = "white envirogloves"

code/modules/clothing/gloves/special.dm

@@ -4,7 +4,6 @@
 	desc = "These clunky gauntlets allow you to drag things with more confidence on them not getting nabbed from you."
 	icon_state = "haul_gauntlet"
 	inhand_icon_state = "bgloves"
-	transfer_prints = FALSE
 	equip_delay_self = 3 SECONDS
 	equip_delay_other = 4 SECONDS
 	clothing_traits = list(TRAIT_CHUNKYFINGERS)
@@ -55,7 +54,7 @@
 	desc = "Just looking at these fills you with an urge to beat the shit out of people."
 	icon_state = "rapid"
 	inhand_icon_state = "rapid"
-	transfer_prints = TRUE
+	clothing_traits = list(TRAIT_FINGERPRINT_PASSTHROUGH)
 
 /obj/item/clothing/gloves/rapid/ComponentInitialize()
 	. = ..()

code/modules/clothing/gloves/tacklers.dm

@@ -3,11 +3,11 @@
 	desc = "Special gloves that manipulate the blood vessels in the wearer's hands, granting them the ability to launch headfirst into walls."
 	icon_state = "tackle"
 	inhand_icon_state = "tackle"
-	transfer_prints = TRUE
 	cold_protection = HANDS
 	min_cold_protection_temperature = GLOVES_MIN_TEMP_PROTECT
 	resistance_flags = NONE
 	custom_premium_price = PAYCHECK_HARD * 3.5
+	clothing_traits = list(TRAIT_FINGERPRINT_PASSTHROUGH)
 	/// For storing our tackler datum so we can remove it after
 	var/datum/component/tackler
 	/// See: [/datum/component/tackler/var/stamina_cost]

code/modules/paperwork/paper.dm

@@ -116,7 +116,7 @@
 	if(contact_poison && ishuman(user))
 		var/mob/living/carbon/human/H = user
 		var/obj/item/clothing/gloves/G = H.gloves
-		if(!istype(G) || G.transfer_prints)
+		if(!istype(G) || !(G.body_parts_covered & HANDS) || HAS_TRAIT(G, TRAIT_FINGERPRINT_PASSTHROUGH) || HAS_TRAIT(H, TRAIT_FINGERPRINT_PASSTHROUGH))
 			H.reagents.add_reagent(contact_poison,contact_poison_volume)
 			contact_poison = null
 	. = ..()