Acid fix from Barhandar.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@686 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/alien/acid.dm

@@ -1,10 +1,15 @@
 /obj/alien/acid/proc/tick()
 	ticks += 1
+	if(target.unacidable)
+		del(src)
+		return
 	for(var/mob/O in hearers(src, null))
 		O.show_message("\green <B>[src.target] sizzles and begins to melt under the bubbling mess of acid!</B>", 1)
 	if(prob(ticks*10))
 		for(var/mob/O in hearers(src, null))
 			O.show_message("\green <B>[src.target] collapses under its own weight into a puddle of goop and undigested debris!</B>", 1)
+//		if(target.occupant) //I tried to fix mechas-with-humans-getting-deleted. Made them unacidable for now.
+//			target.ex_act(1)
 		del(target)
 		del(src)
 		return

code/game/objects/alien/defines.dm

@@ -2,6 +2,7 @@
 	name = "alien thing"
 	desc = "theres something alien about this"
 	icon = 'alien.dmi'
+	unacidable = 1 //alien acid don't melts alien things...
 
 /obj/alien/egg
 	desc = "It looks like a weird egg"
@@ -38,6 +39,7 @@
 	density = 1
 	opacity = 1
 	anchored = 1
+	unacidable = 0 //...except for resin "wall" since it can block way.
 
 	var/health = 20
 

code/game/objects/lamarr.dm

@@ -5,6 +5,7 @@
 	desc = "A glass lab container for storing interesting creatures."
 	density = 1
 	anchored = 1
+	unacidable = 1
 	var/health = 30
 	var/occupied = 1
 	var/destroyed = 0

code/game/objects/livestock.dm

@@ -7,6 +7,7 @@
 	layer = 5.0
 	density = 1
 	anchored = 0
+	unacidable = 1
 
 	var/state = 0		//0 = null, 1 = attack, 2 = idle