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/game/mecha/mecha.dm

@@ -23,11 +23,11 @@
 	layer = BELOW_MOB_LAYER//icon draw layer
 	infra_luminosity = 15 //byond implementation is bugged.
 	force = 5
-	flags_1 = HEAR_1
+	flags_1 = HEAR_1|BLOCK_FACE_ATOM_1
 	var/can_move = 0 //time of next allowed movement
-	var/mob/living/carbon/occupant = null
+	var/mob/living/occupant = null
 	var/step_in = 10 //make a step in step_in/10 sec.
-	var/dir_in = 2//What direction will the mech face when entered/powered on? Defaults to South.
+	var/dir_in = SOUTH //What direction will the mech face when entered/powered on? Defaults to South.
 	var/normal_step_energy_drain = 10 //How much energy the mech will consume each time it moves. This variable is a backup for when leg actuators affect the energy drain.
 	var/step_energy_drain = 10
 	var/melee_energy_drain = 15
@@ -495,6 +495,10 @@
 		occupant_message("<span class='warning'>Air port connection teared off!</span>")
 		mecha_log_message("Lost connection to gas port.")
 
+/obj/mecha/setDir(newdir)
+	. = ..()
+	occupant?.setDir(newdir)
+
 /obj/mecha/Process_Spacemove(var/movement_dir = 0)
 	. = ..()
 	if(.)

code/game/mecha/mecha_topic.dm

@@ -333,10 +333,13 @@
 		send_byjax(occupant,"exosuit.browser","t_port_connection","[internal_tank.connected_port?"Disconnect from":"Connect to"] gas port")
 
 	if(href_list["dna_lock"])
-		if(occupant && !iscarbon(occupant))
-			to_chat(occupant, "<span class='danger'> You do not have any DNA!</span>")
+		if(!occupant)
 			return
-		dna_lock = occupant.dna.unique_enzymes
+		var/mob/living/carbon/C = occupant
+		if(!istype(C) || !C.dna)
+			to_chat(C, "<span class='danger'> You do not have any DNA!</span>")
+			return
+		dna_lock = C.dna.unique_enzymes
 		occupant_message("You feel a prick as the needle takes your DNA sample.")
 
 	if(href_list["reset_dna"])