new dropwall sprites from TG, fix dropwall timer (#26063)

* new dropwall sprites from TG, fix dropwall timer

* improves icon further

code/game/machinery/deployable.dm

@@ -261,7 +261,7 @@
 	directional_list += dir_1
 	directional_list += dir_2
 	if(dir_2)
-		icon_state = "[dir2text(dir_1 + dir_2)]"
+		icon_state = "[dir2text(dir_1)][dir2text(dir_1 + dir_2)]"
 	else
 		icon_state = "[dir2text(dir_1)]"
 
@@ -358,7 +358,7 @@
 	anchored = TRUE
 	protected = TRUE
 	addtimer(CALLBACK(src, PROC_REF(power_out)), uptime)
-	timer_overlay_proc(uptime/10)
+	timer_overlay_proc(1)
 
 	connected_shields += new barricade_type(get_turf(loc), src, TRUE, direction)
 	core_shield = connected_shields[1]
@@ -406,13 +406,12 @@
 	new /obj/item/used_dropwall(get_turf(src))
 	qdel(src)
 
-/obj/structure/dropwall_generator/proc/timer_overlay_proc(uptime) // This proc will make the timer on the generator tick down like a clock, over 12 equally sized portions (12 times over 12 seconds, every second by default)
-	var/cycle = DROPWALL_UPTIME + 1 - uptime
-	add_overlay("[cycle]")
-	if(cycle != 1)
-		cut_overlay("[(cycle - 1)]")
-	if(cycle < 12)
-		addtimer(CALLBACK(src, PROC_REF(timer_overlay_proc), uptime - 1), DROPWALL_UPTIME / 12 SECONDS)
+/obj/structure/dropwall_generator/proc/timer_overlay_proc(loops) // This proc will make the timer on the generator tick down like a clock, over 12 equally sized portions (12 times over 60 seconds, every 5 seconds by default)
+	add_overlay("[loops]")
+	if(loops != 1)
+		cut_overlay("[(loops - 1)]")
+	if(loops < 12)
+		addtimer(CALLBACK(src, PROC_REF(timer_overlay_proc), loops + 1), DROPWALL_UPTIME / 12)
 
 
 /obj/item/used_dropwall