Cleaned up a few lines of unnecessary alien code.

Cleaned up mob projectile code a bit so it uses switch.
It's now much harder to play punch-out with a xeno, unless you're the hulk.
Xenos can now stick humans and monkeys into resin walls. Inside a resin wall, the person cannot escape unless the wall is destroyed (there is a 5% they will crawl out on their own). They are also paralyzed and cannot suicide.
Robots will now spark when you clobber or shoot them.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@1467 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/alien/egg.dm

@@ -12,7 +12,16 @@
 		src.icon_state = "egg_hatched"
 		new /obj/alien/facehugger(src.loc)
 
-
+/obj/alien/egg/bullet_act(flag)
+	switch(flag)
+		if (PROJECTILE_BULLET)
+			health -= 35
+		if (PROJECTILE_PULSE)
+			health -= 50
+		if (PROJECTILE_LASER)
+			health -= 10
+	healthcheck()
+	return
 
 /obj/alien/egg/attackby(var/obj/item/weapon/W, var/mob/user)
 	if(health <= 0)