Merge pull request #8565 from VOREStation/upstream-merge-7383

[MIRROR] Adds Area-Based Meson Obfuscation

code/modules/mob/living/carbon/human/human.dm

@@ -1687,6 +1687,26 @@
 				T.add_blood(src)
 	. = ..()
 
+// Tries to turn off item-based things that let you see through walls, like mesons.
+// Certain stuff like genetic xray vision is allowed to be kept on.
+/mob/living/carbon/human/disable_spoiler_vision()
+	// Glasses.
+	if(istype(glasses, /obj/item/clothing/glasses))
+		var/obj/item/clothing/glasses/goggles = glasses
+		if(goggles.active && (goggles.vision_flags & (SEE_TURFS|SEE_OBJS)))
+			goggles.toggle_active(src)
+			to_chat(src, span("warning", "Your [goggles.name] have suddenly turned off!"))
+
+	// RIGs.
+	var/obj/item/weapon/rig/rig = get_rig()
+	if(istype(rig) && rig.visor?.active && rig.visor.vision?.glasses)
+		var/obj/item/clothing/glasses/rig_goggles = rig.visor.vision.glasses
+		if(rig_goggles.vision_flags & (SEE_TURFS|SEE_OBJS))
+			rig.visor.deactivate()
+			to_chat(src, span("warning", "\The [rig]'s visor has shuddenly deactivated!"))
+
+	..()
+
 /mob/living/carbon/human/reduce_cuff_time()
 	if(istype(gloves, /obj/item/clothing/gloves/gauntlets/rig))
 		return 2

code/modules/mob/living/carbon/human/life.dm

@@ -1328,6 +1328,11 @@
 		sight &= ~(SEE_TURFS|SEE_MOBS|SEE_OBJS)
 		see_invisible = see_in_dark>2 ? SEE_INVISIBLE_LEVEL_ONE : see_invisible_default
 
+		// Do this early so certain stuff gets turned off before vision is assigned.
+		var/area/A = get_area(src)
+		if(A?.no_spoilers)
+			disable_spoiler_vision()
+
 		if(XRAY in mutations)
 			sight |= SEE_TURFS|SEE_MOBS|SEE_OBJS
 			see_in_dark = 8

code/modules/mob/living/living.dm

@@ -1435,3 +1435,8 @@ default behaviour is:
 		clear_alert("weightless")
 	else
 		throw_alert("weightless", /obj/screen/alert/weightless)
+
+// Tries to turn off things that let you see through walls, like mesons.
+// Each mob does vision a bit differently so this is just for inheritence and also so overrided procs can make the vision apply instantly if they call `..()`.
+/mob/living/proc/disable_spoiler_vision()
+	handle_vision()

code/modules/mob/living/silicon/robot/life.dm

@@ -153,7 +153,13 @@
 /mob/living/silicon/robot/handle_regular_hud_updates()
 	var/fullbright = FALSE
 	var/seemeson = FALSE
-	if (src.stat == 2 || (XRAY in mutations) || (src.sight_mode & BORGXRAY))
+
+	var/area/A = get_area(src)
+	if(A?.no_spoilers)
+		disable_spoiler_vision()
+
+
+	if (src.stat == DEAD || (XRAY in mutations) || (src.sight_mode & BORGXRAY))
 		src.sight |= SEE_TURFS
 		src.sight |= SEE_MOBS
 		src.sight |= SEE_OBJS
@@ -187,13 +193,14 @@
 		src.sight &= ~SEE_OBJS
 		src.see_in_dark = 8
 		src.see_invisible = SEE_INVISIBLE_NOLIGHTING
-	else if (src.stat != 2)
+	else if (src.stat != DEAD)
 		src.sight &= ~SEE_MOBS
 		src.sight &= ~SEE_TURFS
 		src.sight &= ~SEE_OBJS
 		src.see_in_dark = 8 			 // see_in_dark means you can FAINTLY see in the dark, humans have a range of 3 or so, tajaran have it at 8
 		src.see_invisible = SEE_INVISIBLE_LIVING // This is normal vision (25), setting it lower for normal vision means you don't "see" things like darkness since darkness
 							 // has a "invisible" value of 15
+
 	plane_holder.set_vis(VIS_FULLBRIGHT,fullbright)
 	plane_holder.set_vis(VIS_MESONS,seemeson)
 	..()

code/modules/mob/living/silicon/robot/robot.dm

@@ -1140,3 +1140,19 @@
 	if(module_active && istype(module_active,/obj/item/weapon/gripper))
 		var/obj/item/weapon/gripper/G = module_active
 		G.drop_item_nm()
+
+/mob/living/silicon/robot/disable_spoiler_vision()
+	if(sight_mode & (BORGMESON|BORGMATERIAL|BORGXRAY)) // Whyyyyyyyy have seperate defines.
+		var/i = 0
+		// Borg inventory code is very . . interesting and as such, unequiping a specific item requires jumping through some (for) loops.
+		var/current_selection_index = get_selected_module() // Will be 0 if nothing is selected.
+		for(var/thing in list(module_state_1, module_state_2, module_state_3))
+			i++
+			if(istype(thing, /obj/item/borg/sight))
+				var/obj/item/borg/sight/S = thing
+				if(S.sight_mode & (BORGMESON|BORGMATERIAL|BORGXRAY))
+					select_module(i)
+					uneq_active()
+
+		if(current_selection_index) // Select what the player had before if possible.
+			select_module(current_selection_index)