Merge pull request #15962 from SandPoot/contextual-screentips

Contextual screentips -- Screentips now show you what items/objects can do

code/game/machinery/doors/airlock.dm

@@ -697,6 +697,42 @@
 		. += "<span class='notice'>Alt-click [src] to [ secondsElectrified ? "un-electrify" : "permanently electrify"] it.</span>"
 		. += "<span class='notice'>Ctrl-Shift-click [src] to [ emergency ? "disable" : "enable"] emergency access.</span>"
 
+/obj/machinery/door/airlock/add_context(atom/source, list/context, obj/item/held_item, mob/living/user)
+	. = ..()
+
+	if(istype(held_item, /obj/item/stack/sheet/plasteel))
+		LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Reinforce")
+		return CONTEXTUAL_SCREENTIP_SET
+
+	switch (held_item?.tool_behaviour)
+		if (TOOL_CROWBAR)
+			if (panel_open)
+				if (security_level == AIRLOCK_SECURITY_PLASTEEL_O_S || security_level == AIRLOCK_SECURITY_PLASTEEL_I_S)
+					LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Remove shielding")
+					return CONTEXTUAL_SCREENTIP_SET
+				else if (should_try_removing_electronics())
+					LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Remove electronics")
+					return CONTEXTUAL_SCREENTIP_SET
+
+			// Not always contextually true, but is contextually false in ways that make gameplay interesting.
+			// For example, trying to pry open an airlock, only for the bolts to be down and the lights off.
+			LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Pry open")
+
+			return CONTEXTUAL_SCREENTIP_SET
+		if (TOOL_WELDER)
+			LAZYSET(context[SCREENTIP_CONTEXT_RMB], INTENT_ANY, "Weld shut")
+
+			if (panel_open)
+				switch (security_level)
+					if (AIRLOCK_SECURITY_METAL, AIRLOCK_SECURITY_PLASTEEL_I, AIRLOCK_SECURITY_PLASTEEL_O)
+						LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Cut shielding")
+						return CONTEXTUAL_SCREENTIP_SET
+
+			LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Repair")
+			return CONTEXTUAL_SCREENTIP_SET
+
+	return .
+
 /obj/machinery/door/airlock/attack_ai(mob/user)
 	if(!src.canAIControl(user))
 		if(src.canAIHack())
@@ -1024,6 +1060,31 @@
 		return
 	return !operating && density
 
+/// Returns if a crowbar would remove the airlock electronics
+/obj/machinery/door/airlock/proc/should_try_removing_electronics()
+	if (security_level != 0)
+		return FALSE
+
+	if (!panel_open)
+		return FALSE
+
+	if (obj_flags & EMAGGED)
+		return TRUE
+
+	if (!density)
+		return FALSE
+
+	if (!welded)
+		return FALSE
+
+	if (hasPower())
+		return FALSE
+
+	if (locked)
+		return FALSE
+
+	return TRUE
+
 /obj/machinery/door/airlock/try_to_crowbar(obj/item/I, mob/living/user)
 	var/beingcrowbarred = null
 	if(I.tool_behaviour == TOOL_CROWBAR)
@@ -1042,9 +1103,9 @@
 		charge.forceMove(get_turf(user))
 		charge = null
 		return
-	if(beingcrowbarred && panel_open && ((obj_flags & EMAGGED) || (density && welded && !operating && !hasPower() && !locked)))
-		user.visible_message("[user] removes the electronics from the airlock assembly.", \
-							 "<span class='notice'>You start to remove electronics from the airlock assembly...</span>")
+	if(beingcrowbarred && should_try_removing_electronics() && !operating)
+		user.visible_message(span_notice("[user] removes the electronics from the airlock assembly."), \
+			span_notice("You start to remove electronics from the airlock assembly..."))
 		if(I.use_tool(src, user, 40, volume=100))
 			deconstruct(TRUE, user)
 			return

code/game/machinery/doors/door.dm

@@ -55,6 +55,13 @@
 	if(!poddoor)
 		. += "<span class='notice'>Its maintenance panel is <b>screwed</b> in place.</span>"
 
+/obj/machinery/door/add_context(atom/source, list/context, obj/item/held_item, mob/living/user)
+	. = ..()
+
+	if (isnull(held_item) && !istype(src, /obj/machinery/door/firedoor)) // You cannot open/close with your hands
+		LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, (density ? "Open" : "Close"))
+		return CONTEXTUAL_SCREENTIP_SET
+
 /obj/machinery/door/check_access_list(list/access_list)
 	if(red_alert_access && GLOB.security_level >= SEC_LEVEL_RED)
 		return TRUE
@@ -65,6 +72,7 @@
 	set_init_door_layer()
 	update_freelook_sight()
 	air_update_turf(1)
+	register_context()
 	GLOB.airlocks += src
 	spark_system = new /datum/effect_system/spark_spread
 	spark_system.set_up(2, 1, src)

code/game/machinery/doors/firedoor.dm

@@ -46,6 +46,34 @@
 	else
 		. += "<span class='notice'>The bolt locks have been <i>unscrewed</i>, but the bolts themselves are still <b>wrenched</b> to the floor.</span>"
 
+/obj/machinery/door/firedoor/add_context(atom/source, list/context, obj/item/held_item, mob/living/user)
+	. = ..()
+
+	if (isnull(held_item))
+		if (density)
+			LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Knock")
+			return CONTEXTUAL_SCREENTIP_SET
+		else
+			return .
+
+	switch (held_item.tool_behaviour)
+		if (TOOL_CROWBAR)
+			if(!welded)
+				LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, (density ? "Open" : "Close"))
+				return CONTEXTUAL_SCREENTIP_SET
+		if (TOOL_WELDER)
+			LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, (welded ? "Unweld shut" : "Weld shut"))
+			return CONTEXTUAL_SCREENTIP_SET
+		if (TOOL_WRENCH)
+			if (welded && !boltslocked)
+				LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, "Unfasten bolts")
+				return CONTEXTUAL_SCREENTIP_SET
+		if (TOOL_SCREWDRIVER)
+			if (welded)
+				LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, (boltslocked ? "Unlock bolts" : "Lock bolts"))
+				return CONTEXTUAL_SCREENTIP_SET
+	return .
+
 /obj/machinery/door/firedoor/proc/CalculateAffectingAreas()
 	remove_from_areas()
 	affecting_areas = get_adjacent_open_areas(src) | get_base_area(src)

code/game/machinery/firealarm.dm

@@ -51,6 +51,16 @@
 	myarea = get_base_area(src)
 	LAZYADD(myarea.firealarms, src)
 
+	register_context()
+
+/obj/machinery/firealarm/add_context(atom/source, list/context, obj/item/held_item, mob/living/user)
+	. = ..()
+
+	if(isnull(held_item))
+		var/area/location = get_area(src)
+		LAZYSET(context[SCREENTIP_CONTEXT_LMB], INTENT_ANY, (location.fire ? "Turn off" : "Turn on"))
+		return CONTEXTUAL_SCREENTIP_SET
+
 /obj/machinery/firealarm/Destroy()
 	myarea.firereset(src)
 	LAZYREMOVE(myarea.firealarms, src)