Fixed more runtime errors.

Monkeys no longer deathemote when gibbed.

Added a Coder/Host level debug verb that forces the master_controller to run its process() proc. Pressing the button while the master_controller is already process()ing is not advised.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@978 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/explosion.dm

@@ -1,4 +1,5 @@
 proc/explosion(turf/epicenter, devastation_range, heavy_impact_range, light_impact_range, flash_range)
+	if(!epicenter) return
 	spawn(0)
 		message_admins("Explosion with size ([devastation_range], [heavy_impact_range], [light_impact_range]) in area [epicenter.loc.name] ")
 

code/game/objects/items/weapons/explosives.dm

@@ -19,14 +19,15 @@
 		target.overlays += image('assemblies.dmi', "plastic-explosive2")
 		user << "Bomb has been planted. Timer counting down from [src.timer]."
 		spawn(src.timer*10)
-			explosion(location, -1, -1, 2, 3)
-			if (istype(src.target, /turf/simulated/wall)) src.target:dismantle_wall(1)
-			else src.target.ex_act(1)
-			if (isobj(src.target))
-				if (src.target)
-					del(src.target)
-			if (src)
-				del(src)
+			if(target)
+				explosion(location, -1, -1, 2, 3)
+				if (istype(src.target, /turf/simulated/wall)) src.target:dismantle_wall(1)
+				else src.target.ex_act(1)
+				if (isobj(src.target))
+					if (src.target)
+						del(src.target)
+				if (src)
+					del(src)
 
 /obj/item/weapon/plastique/attack(mob/M as mob, mob/user as mob, def_zone)
 	return

code/game/objects/weapons.dm

@@ -738,10 +738,12 @@
 			if (user.l_hand == src)
 				user.l_hand = R
 				R.layer = 20
-		src.part1.loc = R
-		src.part2.loc = R
-		src.part1.master = R
-		src.part2.master = R
+		if(src.part1)
+			src.part1.loc = R
+			src.part1.master = R
+		if(src.part2)
+			src.part2.loc = R
+			src.part2.master = R
 		var/turf/T = src.loc
 		if (!( istype(T, /turf) ))
 			T = T.loc
@@ -762,9 +764,10 @@
 		message_admins("[key_name_admin(user)] welded a time bomb. Temp: [src.part3.air_contents.temperature-T0C]")
 		user.show_message("\blue A pressure hole has been bored to the plasma tank valve. The plasma tank can now be ignited.", 1)
 	else
-		src.status = 0
-		bombers += "[key_name(user)] unwelded a time bomb. Temp: [src.part3.air_contents.temperature-T0C]"
-		user << "\blue The hole has been closed."
+		if(src)
+			src.status = 0
+			bombers += "[key_name(user)] unwelded a time bomb. Temp: [src.part3.air_contents.temperature-T0C]"
+			user << "\blue The hole has been closed."
 	src.part2.status = src.status
 
 	src.add_fingerprint(user)