Don't disable chimera eyeglow if they use thermal sight (#7081)

Co-authored-by: MarsMond <no@email>

Author: MarsM0nd

code/modules/species/station/xenochimera.dm

@@ -707,22 +707,25 @@
 	if(!ishuman(owner))
 		return
 	var/mob/living/carbon/human/H = owner
-	toggle_sight(owner)
-	addtimer(CALLBACK(src, PROC_REF(toggle_sight),H), duration, TIMER_UNIQUE)
+	var/toggle = !H.species.has_glowing_eyes //Only toggle the eye glow if we aren't already glowing with them
+	toggle_sight(owner, toggle)
+	addtimer(CALLBACK(src, PROC_REF(toggle_sight), H, toggle), duration, TIMER_UNIQUE)
 
-/datum/ability/species/xenochimera/thermal_sight/proc/toggle_sight(mob/living/carbon/human/H)
+/datum/ability/species/xenochimera/thermal_sight/proc/toggle_sight(mob/living/carbon/human/H, toggle_eye_glow)
 	if(!active)
 		to_chat(H, "<span class='notice'>We focus outward, gaining a keen sense of all those around us.</span>")
 		H.species.vision_flags |= SEE_MOBS
 		H.species.vision_flags &= ~SEE_BLACKNESS
-		H.species.has_glowing_eyes = TRUE
+		if(toggle_eye_glow)
+			H.species.has_glowing_eyes = TRUE
 		H.add_vision_modifier(/datum/vision/augmenting/legacy_ghetto_nvgs)
 		active = TRUE
 	else
 		to_chat(H, "<span class='notice'>Our senses dull.</span>")
 		H.species.vision_flags &= ~SEE_MOBS
 		H.species.vision_flags |= SEE_BLACKNESS
-		H.species.has_glowing_eyes = FALSE
+		if(toggle_eye_glow)
+			H.species.has_glowing_eyes = FALSE
 		H.remove_vision_modifier(/datum/vision/augmenting/legacy_ghetto_nvgs)
 		active = FALSE
 	H.update_eyes()