Hivelord meson vision (#6570)

# About the pull request
Gives hivelords meson vision
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# Explain why it's good for the game
Makes it easier to see how what you are designing is coming together,
which should be a thing for a caste that is entirely focused on
building.
# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
balance: Hivelords now have meson vision
add: Added a toggle for meson vision for hivelord and burrower
/:cl:

---------

Co-authored-by: harryob <[email protected]>

code/modules/mob/living/carbon/xenomorph/abilities/general_abilities.dm

@@ -566,3 +566,18 @@
 	var/mob/living/carbon/xenomorph/xeno = owner
 	xeno.xeno_tacmap()
 	return ..()
+
+/datum/action/xeno_action/active_toggle/toggle_meson_vision
+	name = "Toggle Meson Vision"
+	action_icon_state = "project_xeno"
+	plasma_cost = 0
+	action_type = XENO_ACTION_CLICK
+	ability_primacy = XENO_PRIMARY_ACTION_5
+
+/datum/action/xeno_action/active_toggle/toggle_meson_vision/enable_toggle()
+	. = ..()
+	owner.sight |= SEE_TURFS
+
+/datum/action/xeno_action/active_toggle/toggle_meson_vision/disable_toggle()
+	. = ..()
+	owner.sight &= ~SEE_TURFS

code/modules/mob/living/carbon/xenomorph/castes/Burrower.dm

@@ -66,6 +66,7 @@
 		/datum/action/xeno_action/onclick/place_trap, //second macro
 		/datum/action/xeno_action/activable/burrow, //third macro
 		/datum/action/xeno_action/onclick/tremor, //fourth macro
+		/datum/action/xeno_action/active_toggle/toggle_meson_vision,
 		/datum/action/xeno_action/onclick/tacmap,
 		)
 
@@ -82,10 +83,6 @@
 	weed_food_states = list("Burrower_1","Burrower_2","Burrower_3")
 	weed_food_states_flipped = list("Burrower_1","Burrower_2","Burrower_3")
 
-/mob/living/carbon/xenomorph/burrower/Initialize(mapload, mob/living/carbon/xenomorph/oldxeno, h_number)
-	. = ..()
-	sight |= SEE_TURFS
-
 /mob/living/carbon/xenomorph/burrower/ex_act(severity)
 	if(HAS_TRAIT(src, TRAIT_ABILITY_BURROWED))
 		return

code/modules/mob/living/carbon/xenomorph/castes/Hivelord.dm

@@ -71,6 +71,7 @@
 		/datum/action/xeno_action/activable/secrete_resin/hivelord, //third macro
 		/datum/action/xeno_action/activable/transfer_plasma/hivelord, // to be consistent with drone placement
 		/datum/action/xeno_action/active_toggle/toggle_speed, //fourth macro
+		/datum/action/xeno_action/active_toggle/toggle_meson_vision,
 		/datum/action/xeno_action/onclick/tacmap,
 		)
 

code/modules/mob/living/carbon/xenomorph/strains/castes/hivelord/resin_whisperer.dm

@@ -70,6 +70,10 @@
 	var/turf/target_turf = get_turf(target_atom)
 	if(!target_turf)
 		return
+
+	if(!(target_turf in view(10, owner)))
+		to_chat(owner, SPAN_XENONOTICE("We must have a direct line of sight!"))
+		return
 
 	/// Check if the target is a resin door and open or close it
 	if(istype(target_atom, /obj/structure/mineral_door/resin))