- Added vent control to air alarms

- Added air filter pressure control and made N2O filtering a separate option
- Fixed gas sensor division by zero bug
- Some atmos changes
- Disease gib-loop debugging
- Moved alarms, scrubbers and vents initialization to more suitable place 

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@352 316c924e-a436-60f5-8080-3fe189b3f50e

code/datums/disease.dm

@@ -20,7 +20,7 @@ to null does not delete the object itself. Thank you.
 	var/cure = null
 	var/cure_id = null// reagent.id or list containing them
 	var/cure_chance = 8//chance for the cure to do its job
-	var/spread = null
+	var/spread = null //spread type description
 	var/spread_type = AIRBORNE
 	var/contagious_period = 0//the disease stage when it can be spread
 	var/list/affected_species = list()
@@ -58,7 +58,7 @@ to null does not delete the object itself. Thank you.
 		return
 	return
 
-/datum/disease/proc/has_cure()
+/datum/disease/proc/has_cure()//check if affected_mob has required reagents.
 	if(!cure_id) return 0
 	var/result = 1
 	if(istype(cure_id, /list))
@@ -86,7 +86,7 @@ to null does not delete the object itself. Thank you.
 
 	if(src.virus) return
 
-	if(src.resistances.Find(virus.type))
+	if(virus.type in src.resistances)
 		if(prob(99.9)) return
 		src.resistances.Remove(virus.type)//the resistance is futile
 
@@ -259,7 +259,7 @@ to null does not delete the object itself. Thank you.
 	for(var/mob/living/carbon/M in oviewers(check_range, source))
 		for(var/name in src.affected_species)
 			var/mob_type = text2path("/mob/living/carbon/[lowertext(name)]")
-			if(mob_type && istype(M, mob_type))
+			if(mob_type && istype(M, mob_type))//check if mob can be infected
 				M.contract_disease(src)
 				break
 	return
@@ -273,8 +273,8 @@ to null does not delete the object itself. Thank you.
 		src.stage_act()
 	return
 
-/datum/disease/proc/cure(var/resistance=1)
-	if(resistance && src.affected_mob && !affected_mob.resistances.Find(src.type))
+/datum/disease/proc/cure(var/resistance=1)//if resistance = 0, the mob won't develop resistance to disease
+	if(resistance && src.affected_mob && !(src.type in affected_mob.resistances))
 //		world << "Setting res to [src]"
 		var/type = "[src.type]"//copy the value, not create the reference to it, so when the object is deleted, the value remains.
 		affected_mob.resistances += text2path(type)
@@ -284,7 +284,7 @@ to null does not delete the object itself. Thank you.
 	return
 
 
-/datum/disease/New()
+/datum/disease/New()//adding the object to global list. List is processed by master controller.
 	active_diseases += src
 
 /*

code/datums/diseases/alien_embryo.dm

@@ -16,6 +16,7 @@
 	cure_chance = 20
 	affected_species = list("Human", "Monkey")
 	permeability_mod = 3//likely to infect
+	var/gibbed = 0
 
 /datum/disease/alien_embryo/stage_act()
 	..()
@@ -58,6 +59,7 @@
 			affected_mob.toxloss += 10
 			affected_mob.updatehealth()
 			if(prob(40))
+				ASSERT(gibbed == 0)
 				var/list/candidates = list() // Picks a random ghost in the world to shove in the larva -- TLE
 				for(var/mob/dead/observer/G in world)
 					if(G.client)
@@ -69,7 +71,9 @@
 				else
 					if(affected_mob.client)
 						affected_mob.client.mob = new/mob/living/carbon/alien/larva(affected_mob.loc)
+				src.cure(0)
 				affected_mob.gib()
+				gibbed = 1
 
 			/*
 				if(affected_mob.client)

code/datums/diseases/robotic_transformation.dm

@@ -10,6 +10,7 @@
 	affected_species = list("Human")
 	desc = "This disease, actually acute nanomachine infection, converts the victim into a cyborg."
 	severity = "Major"
+	var/gibbed = 0
 
 /datum/disease/robotic_transformation/stage_act()
 	..()
@@ -53,6 +54,10 @@
 			affected_mob.toxloss += 10
 			affected_mob.updatehealth()
 			if(prob(40)) //So everyone can feel like robot Seth Brundle
+				ASSERT(src.gibbed == 0)
 				var/turf/T = find_loc(affected_mob)
 				gibs(T)
+				src.cure(0)
+				gibbed = 1
 				affected_mob:Robotize()
+

code/datums/diseases/xeno_transformation.dm

@@ -8,6 +8,7 @@
 	cure = "None"
 	agent = "Rip-LEY Alien Microbes"
 	affected_species = list("Human")
+	var/gibbed = 0
 
 /datum/disease/xeno_transformation/stage_act()
 	..()
@@ -53,6 +54,10 @@
 			affected_mob.toxloss += 10
 			affected_mob.updatehealth()
 			if(prob(40))
+				ASSERT(gibbed == 0)
 				var/turf/T = find_loc(affected_mob)
 				gibs(T)
+				src.cure(0)
+				gibbed = 1
 				affected_mob:Alienize()
+