Vaurca Patch 3.00; Fixes #496 (#493)

Vaurca filtration bit organ added. When destroyed or removed, oxygen becomes poisonous to the Vaurca.
Vaurca lungs have been made organic.
Vaurca take 3x toxin damage, as a result of their rather alien biology.
Vaurca lose additional blood when an opportunity to lose blood presents itself, due to their open-circulatory system.
Vaurca organs are no longer all robotic, except for the neural socket and filtration bit.
Vaurca organ surgery is now possible.

code/modules/organs/blood.dm

@@ -126,10 +126,16 @@ var/const/BLOOD_VOLUME_SURVIVE = 122
 		for(var/obj/item/organ/external/temp in organs)
 			if(!(temp.status & ORGAN_BLEEDING) || temp.status & ORGAN_ROBOT)
 				continue
-			for(var/datum/wound/W in temp.wounds) if(W.bleeding())
-				blood_max += W.damage / 40
-			if (temp.open)
-				blood_max += 2  //Yer stomach is cut open
+			if(src.get_species() == "Vaurca")
+				for(var/datum/wound/W in temp.wounds) if(W.bleeding())
+					blood_max += W.damage / 20
+				if (temp.open)
+					blood_max += 4  //Yer stomach is cut open
+			else
+				for(var/datum/wound/W in temp.wounds) if(W.bleeding())
+					blood_max += W.damage / 40
+				if (temp.open)
+					blood_max += 2  //Yer stomach is cut open
 		drip(blood_max)
 
 //Makes a blood drop, leaking amt units of blood from the mob

code/modules/organs/organ_internal.dm

@@ -208,10 +208,18 @@ obj/item/organ/vaurca/neuralsocket/process()
 	parent_organ = "chest"
 	icon = 'icons/mob/alien.dmi'
 	icon_state = "breathing_app"
-	robotic = 2
+	robotic = 0
 
 obj/item/organ/vaurca/breathingapparatus/process()
 	return
 
 /obj/item/organ/vaurca/breathingapparatus/removed()
 	return
+
+/obj/item/organ/vaurca/filtrationbit
+	name = "filtration bit"
+	organ_tag = "filtration bit"
+	parent_organ = "head"
+	icon = 'icons/mob/alien.dmi'
+	icon_state = "filter"
+	robotic = 2