[MIRROR] adds a variable to let computer keyboards render the same icon off as on [MDB IGNORE] (#18164)

* adds a variable to let computer keyboards render the same icon off as on (#72001)

## About The Pull Request
what the title says
also makes the code better a bit

## Why It's Good For The Game
i need this for my map

## Changelog

doesnt affect players

* adds a variable to let computer keyboards render the same icon off as on

Co-authored-by: Fikou <23585223+Fikou@users.noreply.github.com>

code/game/machinery/computer/_computer.dm

@@ -7,20 +7,24 @@
 	integrity_failure = 0.5
 	armor = list(MELEE = 0, BULLET = 0, LASER = 0, ENERGY = 0, BOMB = 0, BIO = 0, FIRE = 40, ACID = 20)
 	interaction_flags_machine = INTERACT_MACHINE_ALLOW_SILICON|INTERACT_MACHINE_SET_MACHINE|INTERACT_MACHINE_REQUIRES_LITERACY
+	/// How bright we are when turned on.
 	var/brightness_on = 1
+	/// Icon_state of the keyboard overlay.
 	var/icon_keyboard = "generic_key"
+	/// Should we render an unique icon for the keyboard when off?
+	var/keyboard_change_icon = TRUE
+	/// Icon_state of the emissive screen overlay.
 	var/icon_screen = "generic"
-	var/time_to_screwdrive = 20
-	var/authenticated = 0
+	/// Time it takes to deconstruct with a screwdriver.
+	var/time_to_unscrew = 2 SECONDS
+	/// Are we authenticated to use this? Used by things like comms console, security and medical data, and apc controller.
+	var/authenticated = FALSE
 
 /obj/machinery/computer/Initialize(mapload, obj/item/circuitboard/C)
 	. = ..()
 
 	power_change()
 
-/obj/machinery/computer/Destroy()
-	. = ..()
-
 /obj/machinery/computer/process()
 	if(machine_stat & (NOPOWER|BROKEN))
 		return FALSE
@@ -29,12 +33,11 @@
 /obj/machinery/computer/update_overlays()
 	. = ..()
 	if(icon_keyboard)
-		if(machine_stat & NOPOWER)
+		if(keyboard_change_icon && (machine_stat & NOPOWER))
 			. += "[icon_keyboard]_off"
 		else
 			. += icon_keyboard
 
-	// This whole block lets screens ignore lighting and be visible even in the darkest room
 	if(machine_stat & BROKEN)
 		. += mutable_appearance(icon, "[icon_state]_broken")
 		return // If we don't do this broken computers glow in the dark.
@@ -42,6 +45,7 @@
 	if(machine_stat & NOPOWER) // Your screen can't be on if you've got no damn charge
 		return
 
+	// This lets screens ignore lighting and be visible even in the darkest room
 	if(icon_screen)
 		. += mutable_appearance(icon, icon_screen)
 		. += emissive_appearance(icon, icon_screen, src)
@@ -58,7 +62,7 @@
 		return TRUE
 	if(circuit && !(flags_1&NODECONSTRUCT_1))
 		to_chat(user, span_notice("You start to disconnect the monitor..."))
-		if(I.use_tool(src, user, time_to_screwdrive, volume=50))
+		if(I.use_tool(src, user, time_to_unscrew, volume=50))
 			deconstruct(TRUE, user)
 	return TRUE
 

code/game/machinery/computer/law.dm

@@ -3,7 +3,7 @@
 /obj/machinery/computer/upload
 	var/mob/living/silicon/current = null //The target of future law uploads
 	icon_screen = "command"
-	time_to_screwdrive = 60
+	time_to_unscrew = 6 SECONDS
 
 /obj/machinery/computer/upload/Initialize(mapload)
 	. = ..()