Tweaks to previous commits.

More tweaks to IPC fixes.
Merge resolution/compile fixes.

Further work on properly integrating, updating and fixing prosthetic options.

Repathed internal organs to organ/internal.

More work on full synthetics, changelings, overheating.

Working on getting organs to qdel properly and spawn properly when robotized.

Finalized some overheating values, added remaining prosthetic icons.

Finalizing the testing version of the full prosthetic bodies branch.

Added suit cyclers to the autolathe and map.

Fixing runtime errors.

Fixing errors.

Changelog.

Replacing limb and organ strings with constants.

Prevented brainless species from becoming full cyborgs.

Fixed issues with brain/MMIs renaming themselves inappropriately.

Various fixes and oversights.

code/game/objects/items/weapons/cigs_lighters.dm

@@ -478,7 +478,7 @@ CIGARETTE PACKETS ARE IN FANCY.DM
 		return
 	M.IgniteMob()
 
-	if(istype(M.wear_mask, /obj/item/clothing/mask/smokable/cigarette) && user.zone_sel.selecting == "mouth" && lit)
+	if(istype(M.wear_mask, /obj/item/clothing/mask/smokable/cigarette) && user.zone_sel.selecting == O_MOUTH && lit)
 		var/obj/item/clothing/mask/smokable/cigarette/cig = M.wear_mask
 		if(M == user)
 			cig.attackby(src, user)

code/game/objects/items/weapons/clown_items.dm

@@ -39,7 +39,7 @@
 	return
 
 /obj/item/weapon/soap/attack(mob/target as mob, mob/user as mob)
-	if(target && user && ishuman(target) && ishuman(user) && !target.stat && !user.stat && user.zone_sel &&user.zone_sel.selecting == "mouth" )
+	if(target && user && ishuman(target) && ishuman(user) && !target.stat && !user.stat && user.zone_sel &&user.zone_sel.selecting == O_MOUTH)
 		user.visible_message("<span class='danger'>\The [user] washes \the [target]'s mouth out with soap!</span>")
 		return
 	..()

code/game/objects/items/weapons/grenades/flashbang.dm

@@ -84,7 +84,7 @@
 //This really should be in mob not every check
 		if(ishuman(M))
 			var/mob/living/carbon/human/H = M
-			var/obj/item/organ/eyes/E = H.internal_organs_by_name["eyes"]
+			var/obj/item/organ/internal/eyes/E = H.internal_organs_by_name[O_EYES]
 			if (E && E.damage >= E.min_bruised_damage)
 				M << "<span class='danger'>Your eyes start to burn badly!</span>"
 				if(!banglet && !(istype(src , /obj/item/weapon/grenade/flashbang/clusterbang)))

code/game/objects/items/weapons/handcuffs.dm

@@ -94,11 +94,11 @@ var/last_chew = 0
 	var/mob/living/carbon/human/H = A
 	if (!H.handcuffed) return
 	if (H.a_intent != I_HURT) return
-	if (H.zone_sel.selecting != "mouth") return
+	if (H.zone_sel.selecting != O_MOUTH) return
 	if (H.wear_mask) return
 	if (istype(H.wear_suit, /obj/item/clothing/suit/straight_jacket)) return
 
-	var/obj/item/organ/external/O = H.organs_by_name[H.hand?"l_hand":"r_hand"]
+	var/obj/item/organ/external/O = H.organs_by_name[(H.hand ? BP_L_HAND : BP_R_HAND)]
 	if (!O) return
 
 	var/s = "<span class='warning'>[H.name] chews on \his [O.name]!</span>"

code/game/objects/items/weapons/material/kitchen.dm

@@ -27,7 +27,7 @@
 		return ..()
 
 	if(user.a_intent != I_HELP)
-		if(user.zone_sel.selecting == "head" || user.zone_sel.selecting == "eyes")
+		if(user.zone_sel.selecting == BP_HEAD || user.zone_sel.selecting == O_EYES)
 			if((CLUMSY in user.mutations) && prob(50))
 				M = user
 			return eyestab(M,user)

code/game/objects/items/weapons/storage/fancy.dm

@@ -159,7 +159,7 @@
 	if(!istype(M, /mob))
 		return
 
-	if(M == user && user.zone_sel.selecting == "mouth" && contents.len > 0 && !user.wear_mask)
+	if(M == user && user.zone_sel.selecting == O_MOUTH && contents.len > 0 && !user.wear_mask)
 		var/obj/item/clothing/mask/smokable/cigarette/W = new /obj/item/clothing/mask/smokable/cigarette(user)
 		reagents.trans_to_obj(W, (reagents.total_volume/contents.len))
 		user.equip_to_slot_if_possible(W, slot_wear_mask)
@@ -252,7 +252,7 @@
 	if(!istype(M, /mob))
 		return
 
-	if(M == user && user.zone_sel.selecting == "mouth" && contents.len > 0 && !user.wear_mask)
+	if(M == user && user.zone_sel.selecting == O_MOUTH && contents.len > 0 && !user.wear_mask)
 		var/obj/item/clothing/mask/smokable/cigarette/cigar/W = new /obj/item/clothing/mask/smokable/cigarette/cigar(user)
 		reagents.trans_to_obj(W, (reagents.total_volume/contents.len))
 		user.equip_to_slot_if_possible(W, slot_wear_mask)

code/game/objects/items/weapons/swords_axes_etc.dm

@@ -30,7 +30,7 @@
 		user.Weaken(3 * force)
 		if(ishuman(user))
 			var/mob/living/carbon/human/H = user
-			H.apply_damage(2*force, BRUTE, "head")
+			H.apply_damage(2*force, BRUTE, BP_HEAD)
 		else
 			user.take_organ_damage(2*force)
 		return
@@ -123,7 +123,7 @@
 			user.Weaken(3 * force)
 			if(ishuman(user))
 				var/mob/living/carbon/human/H = user
-				H.apply_damage(2*force, BRUTE, "head")
+				H.apply_damage(2*force, BRUTE, BP_HEAD)
 			else
 				user.take_organ_damage(2*force)
 			return

code/game/objects/items/weapons/tape.dm

@@ -7,9 +7,9 @@
 
 /obj/item/weapon/tape_roll/attack(var/mob/living/carbon/human/H, var/mob/user)
 	if(istype(H))
-		if(user.zone_sel.selecting == "eyes")
+		if(user.zone_sel.selecting == O_EYES)
 
-			if(!H.organs_by_name["head"])
+			if(!H.organs_by_name[BP_HEAD])
 				user << "<span class='warning'>\The [H] doesn't have a head.</span>"
 				return
 			if(!H.has_eyes())
@@ -27,14 +27,14 @@
 				return
 
 			// Repeat failure checks.
-			if(!H || !src || !H.organs_by_name["head"] || !H.has_eyes() || H.glasses || (H.head && (H.head.body_parts_covered & FACE)))
+			if(!H || !src || !H.organs_by_name[BP_HEAD] || !H.has_eyes() || H.glasses || (H.head && (H.head.body_parts_covered & FACE)))
 				return
 
 			user.visible_message("<span class='danger'>\The [user] has taped up \the [H]'s eyes!</span>")
 			H.equip_to_slot_or_del(new /obj/item/clothing/glasses/sunglasses/blindfold/tape(H), slot_glasses)
 
-		else if(user.zone_sel.selecting == "mouth" || user.zone_sel.selecting == "head")
-			if(!H.organs_by_name["head"])
+		else if(user.zone_sel.selecting == O_MOUTH || user.zone_sel.selecting == BP_HEAD)
+			if(!H.organs_by_name[BP_HEAD])
 				user << "<span class='warning'>\The [H] doesn't have a head.</span>"
 				return
 			if(!H.check_has_mouth())
@@ -52,7 +52,7 @@
 				return
 
 			// Repeat failure checks.
-			if(!H || !src || !H.organs_by_name["head"] || !H.check_has_mouth() || H.wear_mask || (H.head && (H.head.body_parts_covered & FACE)))
+			if(!H || !src || !H.organs_by_name[BP_HEAD] || !H.check_has_mouth() || H.wear_mask || (H.head && (H.head.body_parts_covered & FACE)))
 				return
 
 			user.visible_message("<span class='danger'>\The [user] has taped up \the [H]'s mouth!</span>")

code/game/objects/items/weapons/tools.dm

@@ -83,7 +83,7 @@
 /obj/item/weapon/screwdriver/attack(mob/living/carbon/M as mob, mob/living/carbon/user as mob)
 	if(!istype(M) || user.a_intent == "help")
 		return ..()
-	if(user.zone_sel.selecting != "eyes" && user.zone_sel.selecting != "head")
+	if(user.zone_sel.selecting != O_EYES && user.zone_sel.selecting != BP_HEAD)
 		return ..()
 	if((CLUMSY in user.mutations) && prob(50))
 		M = user
@@ -333,7 +333,7 @@
 	var/safety = user:eyecheck()
 	if(istype(user, /mob/living/carbon/human))
 		var/mob/living/carbon/human/H = user
-		var/obj/item/organ/eyes/E = H.internal_organs_by_name["eyes"]
+		var/obj/item/organ/internal/eyes/E = H.internal_organs_by_name[O_EYES]
 		if(!E)
 			return
 		switch(safety)

code/game/objects/items/weapons/trays.dm

@@ -45,7 +45,7 @@
 	var/mob/living/carbon/human/H = M      ///////////////////////////////////// /Let's have this ready for later.
 
 
-	if(!(user.zone_sel.selecting == ("eyes" || "head"))) //////////////hitting anything else other than the eyes
+	if(!(user.zone_sel.selecting == (O_EYES || BP_HEAD))) //////////////hitting anything else other than the eyes
 		if(prob(33))
 			src.add_blood(H)
 			var/turf/location = H.loc
@@ -79,7 +79,7 @@
 		if(istype(protection) && (protection.body_parts_covered & FACE))
 			protected = 1
 			break
-	
+
 	if(protected)
 		M << "<span class='warning'>You get slammed in the face with the tray, against your mask!</span>"
 		if(prob(33))