Fixed a bunch of the runtime errors cropping up in the server logs.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@175 316c924e-a436-60f5-8080-3fe189b3f50e

code/WorkInProgress/Chemistry-Reagents.dm

@@ -569,6 +569,7 @@ datum
 				if(istype(O,/obj/decal/cleanable))
 					del(O)
 				else
+					if (O)
 						O.clean_blood()
 			reaction_turf(var/turf/T, var/volume)
 				T.overlays = null

code/WorkInProgress/Chemistry-Tools.dm

@@ -250,6 +250,7 @@
 							O.show_message(text("\red [] was hit by the syringe!", M), 1)
 
 						del(D)
+						return
 
 					for(var/atom/A in D.loc)
 						if(A == user) continue

code/WorkInProgress/recycling/disposal.dm

@@ -442,7 +442,7 @@
 	relaymove(mob/user as mob)
 		if (user.stat)
 			return
-
+		if (src.loc)
 			for (var/mob/M in hearers(src.loc.loc))
 				M << "<FONT size=[max(0, 5 - get_dist(src, M))]>CLONG, clong!</FONT>"
 

code/game/dna.dm

@@ -867,13 +867,14 @@
 			var/newblock
 			var/tstructure2
 			var/oldblock
+			if (src.connected.occupant)
 				block = getblock(getblock(src.connected.occupant.dna.struc_enzymes,src.strucblock,3),src.subblock,1)
 				src.delete = 1
 				src.temphtml = text("Working ... Please wait ([] Seconds)", src.radduration)
 				usr << browse(temphtml, "window=scannernew;size=550x650")
 				onclose(usr, "scannernew")
 				sleep(10*src.radduration)
-			if (!src.connected.occupant)
+			else
 				temphtml = null
 				delete = 0
 				return null

code/game/machinery/atmoalter/canister.dm

@@ -13,6 +13,7 @@
 	pressure_resistance = 7*ONE_ATMOSPHERE
 	var/temperature_resistance = 1000 + T0C
 	volume = 1000
+	var/throwforce = 0
 
 /obj/machinery/portable_atmospherics/canister/sleeping_agent
 	name = "Canister: \[N2O\]"

code/game/machinery/autolathe.dm

@@ -44,6 +44,7 @@
 	else if (O.g_amt || O.m_amt)
 		spawn(16) {
 			flick("autolathe_c",src)
+			if(O)
 				if(O.g_amt)					// Added null checks to avoid runtime errors when an item doesn't have an expected variable -- TLE
 					src.g_amount += O.g_amt
 				if(O.m_amt)

code/game/machinery/computer/AIcore.dm

@@ -8,6 +8,7 @@
 	var/datum/ai_laws/laws = new /datum/ai_laws/asimov
 	var/obj/item/weapon/circuitboard/circuit = null
 	var/obj/item/brain/brain = null
+	var/throwforce = 0
 
 
 /obj/AIcore/attackby(obj/item/weapon/P as obj, mob/user as mob)
@@ -83,6 +84,7 @@
 				if(P:amount >= 2)
 					playsound(src.loc, 'Deconstruct.ogg', 50, 1)
 					if(do_after(user, 20))
+						if (P)
 							P:amount -= 2
 							if(!P:amount) del(P)
 							user << "\blue You put in the glass panel."

code/game/machinery/computer/buildandrepair.dm

@@ -169,6 +169,7 @@
 				if(P:amount >= 2)
 					playsound(src.loc, 'Deconstruct.ogg', 50, 1)
 					if(do_after(user, 20))
+						if(P)
 							P:amount -= 2
 							if(!P:amount) del(P)
 							user << "\blue You put in the glass panel."

code/game/machinery/computer/robot.dm

@@ -162,6 +162,7 @@
 			if(R)
 				var/choice = input("Are you certain you wish to detonate [R.name]?") in list("Confirm", "Abort")
 				if(choice == "Confirm")
+					if(R)
 						R.self_destruct()
 
 		src.add_fingerprint(usr)

code/game/machinery/robot_fabricator.dm

@@ -13,6 +13,7 @@
 		if (src.metal_amount < 150000.0)
 			var/count = 0
 			spawn(15)
+				if(O)
 					if(!O:amount)
 						return
 					while(metal_amount < 150000 && O:amount)

code/game/magic/library.dm

@@ -660,7 +660,7 @@ datum/borrowbook // Datum used to keep track of who has borrowed what when and f
 			var/obj/item/weapon/book/b = new(src.loc)
 			b.dat = O:info
 			b.name = "Print Job #" + "[rand(100, 999)]"
-			b.icon_state = "book" + rand(1,7)
+			b.icon_state = "book[rand(1,7)]"
 			del(O)
 		else
 			..()

code/game/objects/items.dm

@@ -219,6 +219,7 @@
 			return safe.attackby(W, user)
 	if ((!( shielded ) || !( W.flags ) & 32))
 		spawn( 0 )
+			if (W)
 				W.attack(src, user)
 				return
 	return

code/game/objects/items/robot_parts.dm

@@ -128,8 +128,9 @@
 			O.invisibility = 0
 			O.name = "Cyborg"
 			O.real_name = "Cyborg"
-			O.lastKnownIP = src.brain.owner.client.address
+
 			if (src.brain.owner.client)
+				O.lastKnownIP = src.brain.owner.client.address
 				src.brain.owner.client.mob = O
 			else
 				for(var/mob/dead/observer/G in world)

code/game/objects/weapons.dm

@@ -130,6 +130,7 @@
 		user.show_message("\blue The timer is now secured!", 1)
 	else
 		user.show_message("\blue The timer is now unsecured!", 1)
+	if (src.part2)
 		src.part2.status = src.status
 	src.add_fingerprint(user)
 	return

code/game/turf.dm

@@ -605,6 +605,7 @@ turf/simulated/floor/proc/update_icon()
 			if (C:amount >= 2)
 				user << "\blue Reinforcing the floor..."
 				if(do_after(user, 30))
+					if (C)
 						ReplaceWithEngineFloor()
 						C:amount -= 2
 						if (C:amount <= 0) del(C) //wtf

code/modules/mob/dead/observer/observer.dm

@@ -168,9 +168,10 @@
 					break
 			if(clear)
 				L+=T
-
+	if (L.len)
 		usr.loc = pick(L)
-
+	else
+		usr << "Teleporting to that area doesn't seem to be working currently. But at least now it tells you that."
 
 var/list/karma_spenders = list()
 

code/modules/mob/living/carbon/human/human.dm

@@ -1004,6 +1004,7 @@
 		if (istype(src.wear_suit, /obj/item/clothing/suit))
 			var/t1 = src.wear_suit.icon_state
 			src.overlays += image("icon" = 'suit.dmi', "icon_state" = text("[][]", t1, (!( src.lying ) ? null : "2")), "layer" = MOB_LAYER)
+		if (src.wear_suit)
 			if (src.wear_suit.blood_DNA)
 				var/icon/stain_icon = null
 				if (istype(src.wear_suit, /obj/item/clothing/suit/armor/vest || /obj/item/clothing/suit/wcoat || /obj/item/clothing/suit/armor/a_i_a_ptank))

code/modules/mob/living/silicon/ai/logout.dm

@@ -4,6 +4,7 @@
 		spawn( 0 )
 		O.mode = 0
 	if(!isturf(src.loc))
+		if (src.client)
 			src.client.eye = src.loc
 			src.client.perspective = EYE_PERSPECTIVE
 	if (src.stat == 2)

code/modules/mob/mob.dm

@@ -1403,6 +1403,7 @@
 				M << "\red Admin PM from-<b>[key_name(usr, M, 0)]</b>: [t]"
 				usr << "\blue Admin PM to-<b>[key_name(M, usr, 1)]</b>: [t]"
 			else
+				if (M)
 					if (M.client && M.client.holder)
 						M << "\blue Reply PM from-<b>[key_name(usr, M, 1)]</b>: [t]"
 					else
@@ -1868,6 +1869,7 @@
 
 		newmob = new/mob/dead/observer(src)
 		src:client:mob = newmob
+		if (src.mind)
 			src.mind.transfer_to(newmob)
 
 		var/virus = src.virus

code/modules/power/solar.dm

@@ -11,6 +11,7 @@
 
 /obj/machinery/power/solar/attackby(obj/item/weapon/W, mob/user)
 	..()
+	if (W)
 		src.add_fingerprint(user)
 		src.health -= W.force
 		src.healthcheck()