add: UnusualVision protection for all gates areas

_maps/map_files/templates/spacehotel/s_03.dmm

@@ -4,7 +4,7 @@
 /area/template_noop)
 "b" = (
 /turf/simulated/floor/indestructible/upperlevel,
-/area/awaymission/desert)
+/area/vision_change_area/awaymission/desert)
 "c" = (
 /obj/machinery/shower{
 	pixel_y = 24
@@ -14,8 +14,8 @@
 	id = "room_s"
 	},
 /turf/simulated/floor/indestructible{
-	icon_state = "whiteblue";
-	dir = 8
+	dir = 8;
+	icon_state = "whiteblue"
 	},
 /area/template_noop)
 "d" = (
@@ -86,15 +86,15 @@
 	name = "lavaland"
 	},
 /turf/simulated/floor/indestructible/upperlevel,
-/area/awaymission/desert)
+/area/vision_change_area/awaymission/desert)
 "k" = (
 /obj/structure/window/reinforced/polarized{
 	dir = 4;
 	id = "room_s"
 	},
 /turf/simulated/floor/indestructible{
-	icon_state = "whiteblue";
-	dir = 8
+	dir = 8;
+	icon_state = "whiteblue"
 	},
 /area/template_noop)
 "l" = (
@@ -113,14 +113,14 @@
 	range = 5
 	},
 /turf/simulated/floor/indestructible{
-	icon_state = "whiteblue";
-	dir = 1
+	dir = 1;
+	icon_state = "whiteblue"
 	},
 /area/template_noop)
 "n" = (
 /turf/simulated/floor/indestructible{
-	icon_state = "whiteblue";
-	dir = 1
+	dir = 1;
+	icon_state = "whiteblue"
 	},
 /area/template_noop)
 "o" = (
@@ -129,8 +129,8 @@
 	id = "room_s"
 	},
 /turf/simulated/floor/indestructible{
-	icon_state = "whitebluecorner";
-	dir = 1
+	dir = 1;
+	icon_state = "whitebluecorner"
 	},
 /area/template_noop)
 "p" = (

code/game/area/ss13_areas.dm

@@ -2659,41 +2659,43 @@ NOTE: there are two lists of areas in the end of this file: centcom and station
 	ambientsounds = AWAY_MISSION_SOUNDS
 	sound_environment = SOUND_ENVIRONMENT_ROOM
 
-/area/awaymission/example
+/area/vision_change_area/awaymission
+
+/area/vision_change_area/awaymission/example
 	name = "\improper Strange Station"
 	icon_state = "away"
 
-/area/awaymission/desert
+/area/vision_change_area/awaymission/desert
 	name = "Sudden Drop"
 	icon_state = "away"
 
-/area/awaymission/beach
+/area/vision_change_area/awaymission/beach
 	name = "Beach"
 	icon_state = "beach"
 	dynamic_lighting = DYNAMIC_LIGHTING_DISABLED
 	requires_power = FALSE
 	ambientsounds = list('sound/ambience/shore.ogg', 'sound/ambience/seag1.ogg', 'sound/ambience/seag2.ogg', 'sound/ambience/seag2.ogg', 'sound/ambience/ambiodd.ogg', 'sound/ambience/ambinice.ogg')
 
-/area/awaymission/undersea
+/area/vision_change_area/awaymission/undersea
 	name = "Undersea"
 	icon_state = "undersea"
 
 
 // area for AWAY "moonoutpost19"
-/area/moonoutpost19
+/area/vision_change_area/moonoutpost19
 	name = "moonoutpost"
 	has_gravity = TRUE
 	report_alerts = FALSE
 
-/area/moonoutpost19/mo19arrivals
+/area/vision_change_area/moonoutpost19/mo19arrivals
 	name = "MO19 Arrivals"
 	icon_state = "awaycontent1"
 
-/area/moonoutpost19/mo19research
+/area/vision_change_area/moonoutpost19/mo19research
 	name = "MO19 Research"
 	icon_state = "awaycontent2"
 
-/area/moonoutpost19/khonsu19
+/area/vision_change_area/moonoutpost19/khonsu19
 	name = "Khonsu 19"
 	icon_state = "awaycontent3"
 	always_unpowered = TRUE
@@ -2704,11 +2706,11 @@ NOTE: there are two lists of areas in the end of this file: centcom and station
 	poweralm = FALSE
 	outdoors = TRUE
 
-/area/moonoutpost19/syndicateoutpost
+/area/vision_change_area/moonoutpost19/syndicateoutpost
 	name = "Syndicate Outpost"
 	icon_state = "awaycontent4"
 
-/area/moonoutpost19/hive
+/area/vision_change_area/moonoutpost19/hive
 	name = "The Hive"
 	icon_state = "awaycontent5"
 	always_unpowered = TRUE
@@ -2717,7 +2719,7 @@ NOTE: there are two lists of areas in the end of this file: centcom and station
 	power_light = FALSE
 	poweralm = FALSE
 
-/area/moonoutpost19/mo19utilityroom
+/area/vision_change_area/moonoutpost19/mo19utilityroom
 	name = "MO19 Utility Room"
 	icon_state = "awaycontent6"
 

code/game/area/vision_reset_areas.dm

@@ -0,0 +1,48 @@
+/**
+ * Here lie areas that reset your vision.
+ * Designed to cancel off xray/meson/thermal vision effects.
+ * Special for spooky secret areas and gates. :D
+ */
+
+/area/vision_change_area
+
+/area/vision_change_area/Entered(atom/movable/arrived)
+	. = ..()
+	if(istype(arrived, /mob/living/carbon))
+		var/mob/living/carbon/C = arrived
+		C.see_invisible = initial(C.see_invisible)
+		C.see_in_dark = initial(C.see_in_dark)
+		C.sight = initial(C.sight)
+		C.lighting_alpha = initial(C.lighting_alpha)
+		C.sync_lighting_plane_alpha()
+		C.AddComponent(/datum/component/vision_reset)
+
+/area/vision_change_area/Exited(atom/movable/gone)
+	. = ..()
+	if(istype(gone, /mob/living/carbon))
+		var/mob/living/carbon/C = gone
+		var/datum/component/component = C.GetComponent(/datum/component/vision_reset)
+		if(component)
+			qdel(component)
+		C.update_sight()
+
+/datum/component/vision_reset
+	var/mob/living/carbon/my_mob
+
+/datum/component/vision_reset/Initialize(...)
+	my_mob = parent
+	if(!istype(parent))
+		return COMPONENT_INCOMPATIBLE
+	RegisterSignal(my_mob, COMSIG_MOB_UPDATE_SIGHT, PROC_REF(change_vision))
+
+/datum/component/vision_reset/proc/change_vision()
+	my_mob.see_invisible = initial(my_mob.see_invisible)
+	my_mob.see_in_dark = initial(my_mob.see_in_dark)
+	my_mob.sight = initial(my_mob.sight)
+	my_mob.lighting_alpha = initial(my_mob.lighting_alpha)
+	my_mob.sync_lighting_plane_alpha()
+
+/datum/component/vision_reset/Destroy(force, silent)
+	UnregisterSignal(my_mob, COMSIG_MOB_UPDATE_SIGHT)
+	my_mob.update_sight()
+	return ..()

code/game/atoms_movable.dm

@@ -286,6 +286,8 @@
 
 /atom/movable/proc/forceMove(atom/destination)
 	var/turf/old_loc = loc
+	var/area/old_area = get_area(src)
+	var/area/new_area = get_area(destination)
 	loc = destination
 	moving_diagonally = 0
 
@@ -294,12 +296,19 @@
 		for(var/atom/movable/AM in old_loc)
 			AM.Uncrossed(src)
 
+	if(old_area && (new_area != old_area))
+		old_area.Exited(src)
+
 	if(destination)
 		destination.Entered(src)
 		for(var/atom/movable/AM in destination)
 			if(AM == src)
 				continue
 			AM.Crossed(src, old_loc)
+
+		if(new_area && (old_area != new_area))
+			new_area.Entered(src)
+
 		var/turf/oldturf = get_turf(old_loc)
 		var/turf/destturf = get_turf(destination)
 		var/old_z = (oldturf ? oldturf.z : null)

code/modules/awaymissions/mission_code/UO45.dm

@@ -1,32 +1,32 @@
-/area/awaymission/UO45
+/area/vision_change_area/awaymission/UO45
 	name = "UO45"
 	report_alerts = FALSE
 
-/area/awaymission/UO45/gateaway
+/area/vision_change_area/awaymission/UO45/gateaway
 	name = "UO45 Gateway"
 	icon_state = "awaycontent1"
 
-/area/awaymission/UO45/research
+/area/vision_change_area/awaymission/UO45/research
 	name = "UO45 Research"
 	icon_state = "awaycontent2"
 
-/area/awaymission/UO45/crew_quarters
+/area/vision_change_area/awaymission/UO45/crew_quarters
 	name = "UO45 Crew Quarters"
 	icon_state = "awaycontent3"
 
-/area/awaymission/UO45/central_hall
+/area/vision_change_area/awaymission/UO45/central_hall
 	name = "UO45 Central Hall"
 	icon_state = "awaycontent4"
 
-/area/awaymission/UO45/mining
+/area/vision_change_area/awaymission/UO45/mining
 	name = "UO45 Mining"
 	icon_state = "awaycontent5"
 
-/area/awaymission/UO45/engineering
+/area/vision_change_area/awaymission/UO45/engineering
 	name = "UO45 Engineering"
 	icon_state = "awaycontent6"
 
-/area/awaymission/UO45/caves
+/area/vision_change_area/awaymission/UO45/caves
 	name = "UO45 Caves"
 	icon_state = "awaycontent7"
 	always_unpowered = TRUE

code/modules/awaymissions/mission_code/UO71-terrorspiders.dm

@@ -1,74 +1,74 @@
-/area/awaymission/UO71
+/area/vision_change_area/awaymission/UO71
 	name = "UO71"
 	icon_state = "away"
 	report_alerts = FALSE
 	tele_proof = TRUE
 
 
-/area/awaymission/UO71/plaza
+/area/vision_change_area/awaymission/UO71/plaza
 	name = "UO71 Plaza"
 	icon_state = "awaycontent1"
 	fire = TRUE
 
-/area/awaymission/UO71/centralhall
+/area/vision_change_area/awaymission/UO71/centralhall
 	name = "UO71 Central"
 	icon_state = "awaycontent2"
 	fire = TRUE
 
-/area/awaymission/UO71/eng
+/area/vision_change_area/awaymission/UO71/eng
 	name = "UO71 Engineering"
 	icon_state = "awaycontent3"
 	fire = TRUE
 
-/area/awaymission/UO71/mining
+/area/vision_change_area/awaymission/UO71/mining
 	name = "UO71 Mining"
 	icon_state = "awaycontent4"
 	fire = TRUE
 
-/area/awaymission/UO71/science
+/area/vision_change_area/awaymission/UO71/science
 	name = "UO71 Science"
 	icon_state = "awaycontent5"
 	fire = TRUE
 
-/area/awaymission/UO71/medical
+/area/vision_change_area/awaymission/UO71/medical
 	name = "UO71 Medical"
 	icon_state = "awaycontent6"
 	fire = TRUE
 
-/area/awaymission/UO71/gateway
+/area/vision_change_area/awaymission/UO71/gateway
 	name = "UO71 Gateway"
 	icon_state = "awaycontent7"
 	fire = TRUE
 
-/area/awaymission/UO71/outside
+/area/vision_change_area/awaymission/UO71/outside
 	name = "UO71 Outside"
 	icon_state = "awaycontent8"
 
-/area/awaymission/UO71/bridge
+/area/vision_change_area/awaymission/UO71/bridge
 	name = "UO71 Bridge"
 	icon_state = "awaycontent21"
 	fire = TRUE
 	requires_power = FALSE
 	tele_proof = TRUE
 	dynamic_lighting = DYNAMIC_LIGHTING_FORCED
 
-/area/awaymission/UO71/queen
+/area/vision_change_area/awaymission/UO71/queen
 	name = "UO71 Queen Lair"
 	icon_state = "awaycontent9"
 	fire = TRUE
 	requires_power = FALSE
 	tele_proof = TRUE
 	dynamic_lighting = DYNAMIC_LIGHTING_FORCED
 
-/area/awaymission/UO71/prince
+/area/vision_change_area/awaymission/UO71/prince
 	name = "UO71 Prince Containment"
 	icon_state = "awaycontent10"
 	fire = TRUE
 	requires_power = FALSE
 	tele_proof = TRUE
 	dynamic_lighting = DYNAMIC_LIGHTING_FORCED
 
-/area/awaymission/UO71/loot
+/area/vision_change_area/awaymission/UO71/loot
 	name = "UO71 Loot Vault"
 	icon_state = "awaycontent11"
 	requires_power = FALSE

code/modules/awaymissions/mission_code/academy.dm

@@ -1,25 +1,25 @@
 //Academy Areas
 
-/area/awaymission/academy
+/area/vision_change_area/awaymission/academy
 	name = "\improper Academy Asteroids"
 	icon_state = "away"
 	report_alerts = FALSE
 	no_teleportlocs = TRUE
 	tele_proof = TRUE
 
-/area/awaymission/academy/headmaster
+/area/vision_change_area/awaymission/academy/headmaster
 	name = "\improper Academy Fore Block"
 	icon_state = "away1"
 
-/area/awaymission/academy/classrooms
+/area/vision_change_area/awaymission/academy/classrooms
 	name = "\improper Academy Classroom Block"
 	icon_state = "away2"
 
-/area/awaymission/academy/academyaft
+/area/vision_change_area/awaymission/academy/academyaft
 	name = "\improper Academy Ship Aft Block"
 	icon_state = "away3"
 
-/area/awaymission/academy/academygate
+/area/vision_change_area/awaymission/academy/academygate
 	name = "\improper Academy Gateway"
 	icon_state = "away4"