Merge branch 'master' of https://github.com/Citadel-Station-13/Citadel-Station-13 into Ghommie-cit45

code/modules/mob/mob.dm

@@ -69,8 +69,8 @@
 	t +=	"<span class='danger'>Temperature: [environment.temperature] \n</span>"
 	for(var/id in environment.gases)
 		var/gas = environment.gases[id]
-		if(gas[MOLES])
-			t+="<span class='notice'>[gas[GAS_META][META_GAS_NAME]]: [gas[MOLES]] \n</span>"
+		if(gas)
+			t+="<span class='notice'>[GLOB.meta_gas_names[id]]: [gas] \n</span>"
 
 	to_chat(usr, t)
 
@@ -789,7 +789,7 @@
 	return 0
 
 //Can the mob use Topic to interact with machines
-/mob/proc/canUseTopic(atom/movable/M, be_close=FALSE, no_dextery=FALSE)
+/mob/proc/canUseTopic(atom/movable/M, be_close=FALSE, no_dextery=FALSE, no_tk=FALSE)
 	return
 
 /mob/proc/faction_check_mob(mob/target, exact_match)
@@ -876,13 +876,7 @@
 	return
 
 /mob/proc/update_sight()
-	for(var/O in orbiters)
-		var/datum/orbit/orbit = O
-		var/obj/effect/wisp/wisp = orbit.orbiter
-		if (istype(wisp))
-			sight |= wisp.sight_flags
-			if(!isnull(wisp.lighting_alpha))
-				lighting_alpha = min(lighting_alpha, wisp.lighting_alpha)
+	SEND_SIGNAL(src, COMSIG_MOB_UPDATE_SIGHT)
 
 	sync_lighting_plane_alpha()