Map changes:

- A small map change at chemistry. There is now a 1 tile indent so that people running up and down the hallway don't push people waiting for the chemist all over the place.
Screenshot: http://www.kamletos.si/chemistry.png
- Some doors were replaced with glass doors (engineering exterior, engineering break room, bridge outside doors, eva left double doors)

Nerfed poly acid.

Description from #coderbus:
- When you splash pacid on someone's face, if they have a mask it melts, if they don't, but have a helmet, there is a 15% chance for it to melt, if they don't have either, they take 15 damage and there is a 15% chance for them to become unknown
- if the method is not TOUCH (whatever that means)... they take 15 damage and there is a 15% chance for them to become unknown
- on_mob_life... they now take 1 tox damage per tick instead of 1 tox + 1 burn
- reaction_obj is the same as before



git-svn-id: http://tgstation13.googlecode.com/svn/trunk@3043 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/chemical/Chemistry-Reagents.dm

@@ -686,9 +686,9 @@ datum
 			on_mob_life(var/mob/living/M as mob)
 				if(!M) M = holder.my_atom
 				M:adjustToxLoss(1)
-				M.take_organ_damage(0, 1)
 				..()
 				return
+
 			reaction_mob(var/mob/living/M, var/method=TOUCH, var/volume)
 				if(!istype(M, /mob/living))
 					return //wooo more runtime fixin
@@ -699,15 +699,19 @@ datum
 							M << "\red Your mask melts away!"
 							return
 						if(M:head)
-							del (M:head)
-							M << "\red Your helmet melts into uselessness!"
+							if(prob(15))
+								del(M:head)
+								M << "\red Your helmet melts from the acid"
+							else
+								M << "\red Your helmet protects you from the acid!"
 							return
 						var/datum/organ/external/affecting = M:get_organ("head")
-						affecting.take_damage(35, 0)
+						affecting.take_damage(15, 0)
 						M:UpdateDamageIcon()
 						M:emote("scream")
-						M << "\red Your face has become disfigured!"
-						M.real_name = "Unknown"
+						if(prob(15))
+							M << "\red Your face has become disfigured!"
+							M.real_name = "Unknown"
 					else
 						if(istype(M, /mob/living/carbon/monkey) && M:wear_mask)
 							del (M:wear_mask)
@@ -717,11 +721,12 @@ datum
 				else
 					if(istype(M, /mob/living/carbon/human))
 						var/datum/organ/external/affecting = M:get_organ("head")
-						affecting.take_damage(30, 0)
+						affecting.take_damage(15, 0)
 						M:UpdateDamageIcon()
 						M:emote("scream")
-						M << "\red Your face has become disfigured!"
-						M.real_name = "Unknown"
+						if(prob(15))
+							M << "\red Your face has become disfigured!"
+							M.real_name = "Unknown"
 					else
 						M.take_organ_damage(min(15, volume * 4))