Dominators now require a significant amount of open turf around them (#895)

code/game/gamemodes/gang/dominator.dm

@@ -1,3 +1,5 @@
+#define DOM_BLOCKED_SPAM_CAP 6
+
 /obj/machinery/dominator
 	name = "dominator"
 	desc = "A visibly sinister device. Looks like you can break it if you hit it enough."
@@ -13,9 +15,20 @@
 	var/datum/gang/gang
 	var/operating = 0	//0=standby or broken, 1=takeover
 	var/warned = 0	//if this device has set off the warning at <3 minutes yet
+	var/spam_prevention = DOM_BLOCKED_SPAM_CAP //first message is immediate
 	var/datum/effect_system/spark_spread/spark_system
 	var/obj/effect/countdown/dominator/countdown
 
+/proc/dominator_excessive_walls(atom/A)
+	var/open = 0
+	for(var/turf/T in circleviewturfs(center=A,radius=3))
+		if(!istype(T, /turf/closed))
+			open++
+	if(open < 40)
+		return TRUE
+	else 
+		return FALSE
+
 /obj/machinery/dominator/tesla_act()
 	qdel(src)
 
@@ -48,6 +61,16 @@
 	if(gang && gang.is_dominating)
 		var/time_remaining = gang.domination_time_remaining()
 		if(time_remaining > 0)
+			if(dominator_excessive_walls(src))
+				gang.domination_timer += 2
+				playsound(loc, 'sound/machines/buzz-two.ogg', 50, 0)
+				if(spam_prevention < DOM_BLOCKED_SPAM_CAP)
+					spam_prevention++
+				else
+					gang.message_gangtools("Warning: There are too many walls around your gang's dominator, its signal is being blocked!")
+					say("Error: Takeover signal is currently blocked! There are too many walls within 3 standard units of this device.")
+					spam_prevention = 0
+					return
 			. = TRUE
 			playsound(loc, 'sound/items/timer.ogg', 10, 0)
 			if(!warned && (time_remaining < 180))

code/game/gamemodes/gang/gang_items.dm

@@ -305,7 +305,11 @@
 		if(obj.density)
 			to_chat(user, "<span class='warning'>There's not enough room here!</span>")
 			return FALSE
-
+	
+	if(dominator_excessive_walls(user))
+		to_chat(user, "span class='warning'>The <b>dominator</b> will not function here! The <b>dominator</b> requires an open space within three standard units so that walls do not interfere with the signal.</span>")
+		return FALSE
+		
 	if(!(usrarea.type in gang.territory|gang.territory_new))
 		to_chat(user, "<span class='warning'>The <b>dominator</b> can be spawned only on territory controlled by your gang!</span>")
 		return FALSE