New facehugger strain: Watcher

code/__DEFINES/mobs.dm

@@ -309,6 +309,10 @@
 // Queen strain flags
 #define QUEEN_NORMAL "Normal"
 
+// Facehugger strain flags
+#define FACEHUGGER_NORMAL "Normal"
+#define FACEHUGGER_WATCHER "Watcher"
+
 // Drone strain flags
 #define DRONE_NORMAL "Normal"
 #define DRONE_HEALER "Healer"

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

@@ -67,13 +67,13 @@
 		PF.flags_can_pass_all = PASS_ALL^PASS_OVER_THROW_ITEM
 
 /mob/living/carbon/xenomorph/facehugger/Life(delta_time)
+	if(stat != DEAD && !lying && !(mutation_type == FACEHUGGER_WATCHER) && !(locate(/obj/effect/alien/weeds) in get_turf(src)))
+		adjustBruteLoss(1)
+		return ..()
 	if(!client && !aghosted && away_timer > XENO_FACEHUGGER_LEAVE_TIMER)
 		// Become a npc once again
 		new /obj/item/clothing/mask/facehugger(loc, hivenumber)
 		qdel(src)
-		return
-	if(stat != DEAD && !lying && !(locate(/obj/effect/alien/weeds) in get_turf(src)))
-		adjustBruteLoss(1)
 	return ..()
 
 /mob/living/carbon/xenomorph/facehugger/update_icons(is_pouncing)
@@ -217,3 +217,35 @@
 		. += "Lifetime Hugs: [total_facehugs] / [next_facehug_goal]"
 	else
 		. += "Lifetime Hugs: [total_facehugs]"
+
+
+/datum/xeno_mutator/watcher
+	name = "STRAIN: Facehugger - Watcher"
+	description = "You lose your ability to hide in exchange to see further and the ability to no longer take damage outside of weeds. This enables you to stalk your host from a distance and wait for the perfect oppertunity to strike."
+	flavor_description = "No need to hide when you can see the danger."
+	individual_only = TRUE
+	caste_whitelist = list(XENO_CASTE_FACEHUGGER)
+	mutator_actions_to_remove = list(
+		/datum/action/xeno_action/onclick/xenohide,
+	)
+	mutator_actions_to_add = list(
+		/datum/action/xeno_action/onclick/toggle_long_range/runner,
+	)
+
+	cost = 1
+
+	keystone = TRUE
+
+/datum/xeno_mutator/watcher/apply_mutator(datum/mutator_set/individual_mutators/mutator_set)
+	. = ..()
+	if(!.)
+		return
+
+	var/mob/living/carbon/xenomorph/facehugger/facehugger = mutator_set.xeno
+
+	facehugger.viewsize = 10
+	facehugger.layer = MOB_LAYER
+
+	facehugger.mutation_type = FACEHUGGER_WATCHER
+	mutator_update_actions(facehugger)
+	mutator_set.recalculate_actions(description, flavor_description)