Fixed some runtime errors

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@1155 316c924e-a436-60f5-8080-3fe189b3f50e

code/WorkInProgress/Chemistry-Holder.dm

@@ -91,7 +91,8 @@ datum
 			metabolize(var/mob/M)
 				for(var/A in reagent_list)
 					var/datum/reagent/R = A
-					R.on_mob_life(M)
+					if(M)
+						R.on_mob_life(M)
 				update_total()
 
 			conditional_update_move(var/atom/A, var/Running = 0)

code/WorkInProgress/Chemistry-Reagents.dm

@@ -482,12 +482,13 @@ datum
 
 					if(prob(75))
 						var/datum/organ/external/affecting = M:organs["head"]
-						affecting.take_damage(25, 0)
-						M:UpdateDamage()
-						M:UpdateDamageIcon()
-						M:emote("scream")
-						M << "\red Your face has become disfigured!"
-						M.real_name = "Unknown"
+						if(affecting)
+							affecting.take_damage(25, 0)
+							M:UpdateDamage()
+							M:UpdateDamageIcon()
+							M:emote("scream")
+							M << "\red Your face has become disfigured!"
+							M.real_name = "Unknown"
 					else
 						M:bruteloss += 15
 				else

code/game/machinery/atmoalter/scrubber.dm

@@ -39,29 +39,31 @@
 			removed = loc.remove_air(transfer_moles)
 
 		//Filter it
-		var/datum/gas_mixture/filtered_out = new
-		filtered_out.temperature = removed.temperature
+		if (removed)
+			var/datum/gas_mixture/filtered_out = new
+
+			filtered_out.temperature = removed.temperature
 
 
-		filtered_out.toxins = removed.toxins
-		removed.toxins = 0
+			filtered_out.toxins = removed.toxins
+			removed.toxins = 0
 
-		filtered_out.carbon_dioxide = removed.carbon_dioxide
-		removed.carbon_dioxide = 0
+			filtered_out.carbon_dioxide = removed.carbon_dioxide
+			removed.carbon_dioxide = 0
 
-		if(removed.trace_gases.len>0)
-			for(var/datum/gas/trace_gas in removed.trace_gases)
-				if(istype(trace_gas, /datum/gas/oxygen_agent_b))
-					removed.trace_gases -= trace_gas
-					filtered_out.trace_gases += trace_gas
+			if(removed.trace_gases.len>0)
+				for(var/datum/gas/trace_gas in removed.trace_gases)
+					if(istype(trace_gas, /datum/gas/oxygen_agent_b))
+						removed.trace_gases -= trace_gas
+						filtered_out.trace_gases += trace_gas
 
 		//Remix the resulting gases
-		air_contents.merge(filtered_out)
+			air_contents.merge(filtered_out)
 
-		if(holding)
-			environment.merge(removed)
-		else
-			loc.assume_air(removed)
+			if(holding)
+				environment.merge(removed)
+			else
+				loc.assume_air(removed)
 		//src.update_icon()
 	src.updateDialog()
 	return

code/game/objects/devices/flash.dm

@@ -60,19 +60,22 @@
 	src.attack_self(user, 1)
 	return
 
-/obj/item/device/flash/attack_self(mob/living/carbon/user as mob, flag)
-	if ((usr.mutations & 16) && prob(50))
+/obj/item/device/flash/attack_self(mob/living/carbon/user as mob, flag = 0, emp = 0)
+	if (emp)
+
+	else if ((usr.mutations & 16) && prob(50))
 		usr << "\red The Flash slips out of your hand."
 		usr.drop_item()
 		return
+	else if (!(istype(usr, /mob/living/carbon/human) || ticker) && ticker.mode.name != "monkey")
+		usr << "\red You don't have the dexterity to do this!"
+		return
 	if ( (world.time + 600) > src.l_time)
 		src.shots = 5
 	if (src.shots < 1)
 		user.show_message("\red *click* *click*", 2)
 		return
-	if (!(istype(usr, /mob/living/carbon/human) || ticker) && ticker.mode.name != "monkey")
-		usr << "\red You don't have the dexterity to do this!"
-		return
+
 	src.l_time = world.time
 	add_fingerprint(user)
 	src.shots--
@@ -107,5 +110,5 @@
 					flick("flash", M.flash)
 
 /obj/item/device/flash/emp_act(severity)
-	src.attack_self()
+	src.attack_self(null,1,1)
 	..()

code/game/throwing.dm

@@ -149,7 +149,7 @@
 					sleep(1)
 	else
 		var/error = dist_y/2 - dist_x
-		while (((((src.y < target.y && dy == NORTH) || (src.y > target.y && dy == SOUTH)) && dist_travelled < range) || istype(src.loc, /turf/space)) && src.throwing && istype(src.loc, /turf))
+		while (src &&((((src.y < target.y && dy == NORTH) || (src.y > target.y && dy == SOUTH)) && dist_travelled < range) || istype(src.loc, /turf/space)) && src.throwing && istype(src.loc, /turf))
 			// only stop when we've gone the whole distance (or max throw range) and are on a non-space tile, or hit something, or hit the end of the map, or someone picks it up
 			if(error < 0)
 				var/atom/step = get_step(src, dx)

code/modules/mob/living/silicon/robot/robot.dm

@@ -11,7 +11,8 @@
 			src.real_name += " [pick(rand(1, 999))]"
 			src.name = src.real_name
 	spawn (4)
-		src.connected_ai = activeais()
+		if (src.client)
+			src.connected_ai = activeais()
 		if (src.connected_ai)
 			src.connected_ai.connected_robots += src
 //			src.laws = src.connected_ai.laws_object //The borg inherits its AI's laws