Field of Vision component. (#12075)

* Hopeless WIP for vision cones.

* Core component and hooks done

* Removing clutter.

* linter bashing me for using statements as args.

* Ok.

* continue

* bring back the macro

* Configs and openspace filter.

* Chat plane, reset perspective signal, mechs/vehicles cases, machineries.

* view, viewers and spoopy ghosts.

* Renamed component, admin fun button and snowflakes robots.

* Whoopsie.

* Yikes

* test merge tweak.

* radial yaketi sax.

* Fixed tgui UIs, some messages not displayed to the target.

* Documentation and a little bugfix.

* Pulling QoL, seventh plane made in this PR.

* Fix.

* Tweaks and improvements.

* Update randomverbs.dm

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

@@ -28,6 +28,7 @@
 	sec_hud = DATA_HUD_SECURITY_BASIC
 	d_hud = DATA_HUD_DIAGNOSTIC_ADVANCED
 	mob_size = MOB_SIZE_LARGE
+	has_field_of_vision = FALSE //Vision through cameras.
 	var/list/network = list("ss13")
 	var/obj/machinery/camera/current
 	var/list/connected_robots = list()
@@ -868,30 +869,33 @@
 		light_cameras()
 	if(istype(A, /obj/machinery/camera))
 		current = A
-	if(client)
-		if(ismovable(A))
-			if(A != GLOB.ai_camera_room_landmark)
-				end_multicam()
-			client.perspective = EYE_PERSPECTIVE
-			client.eye = A
-		else
+	if(!client)
+		return
+	if(ismovable(A))
+		if(A != GLOB.ai_camera_room_landmark)
 			end_multicam()
-			if(isturf(loc))
-				if(eyeobj)
-					client.eye = eyeobj
-					client.perspective = EYE_PERSPECTIVE
-				else
-					client.eye = client.mob
-					client.perspective = MOB_PERSPECTIVE
-			else
+		client.perspective = EYE_PERSPECTIVE
+		client.eye = A
+	else
+		end_multicam()
+		if(isturf(loc))
+			if(eyeobj)
+				client.eye = eyeobj
 				client.perspective = EYE_PERSPECTIVE
-				client.eye = loc
-		update_sight()
-		if(client.eye != src)
-			var/atom/AT = client.eye
-			AT.get_remote_view_fullscreens(src)
+			else
+				client.eye = client.mob
+				client.perspective = MOB_PERSPECTIVE
 		else
-			clear_fullscreen("remote_view", 0)
+			client.perspective = EYE_PERSPECTIVE
+			client.eye = loc
+	update_sight()
+	if(client.eye != src)
+		var/atom/AT = client.eye
+		AT.get_remote_view_fullscreens(src)
+	else
+		clear_fullscreen("remote_view", 0)
+	SEND_SIGNAL(src, COMSIG_MOB_RESET_PERSPECTIVE, A)
+	return TRUE
 
 /mob/living/silicon/ai/revive(full_heal = 0, admin_revive = 0)
 	. = ..()

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

@@ -57,3 +57,5 @@
 			cut_overlays()
 		else
 			icon_state = "[module.cyborg_base_icon]"
+
+	SEND_SIGNAL(src, COMSIG_ROBOT_UPDATE_ICONS)