Makes flash hyper vulnerability based on negative flash resistance mo…

…difier, removes snowflake trait. (tgstation#69530)

code/__DEFINES/mobs.dm

@@ -435,6 +435,7 @@
 #define REAGENTS_EFFECT_MULTIPLIER (REAGENTS_METABOLISM / 0.4) // By defining the effect multiplier this way, it'll exactly adjust all effects according to how they originally were with the 0.4 metabolism
 
 // Eye protection
+#define FLASH_PROTECTION_HYPER_SENSITIVE -2
 #define FLASH_PROTECTION_SENSITIVE -1
 #define FLASH_PROTECTION_NONE 0
 #define FLASH_PROTECTION_FLASH 1

code/__DEFINES/traits.dm

@@ -296,8 +296,6 @@ Remember to update _globalvars/traits.dm if you're adding/removing/renaming trai
 #define TRAIT_NOFLASH "noflash"
 /// prevents xeno huggies implanting skeletons
 #define TRAIT_XENO_IMMUNE "xeno_immune"
-/// Makes you flashable from any direction
-#define TRAIT_FLASH_SENSITIVE "flash_sensitive"
 #define TRAIT_NAIVE "naive"
 #define TRAIT_PRIMITIVE "primitive"
 #define TRAIT_GUNFLIP "gunflip"

code/modules/assembly/flash.dm

@@ -1,5 +1,6 @@
 #define CONFUSION_STACK_MAX_MULTIPLIER 2
 
+
 /// No deviation at all. Flashed from the front or front-left/front-right. Alternatively, flashed in direct view.
 #define DEVIATION_NONE 0
 /// Partial deviation. Flashed from the side. Alternatively, flashed out the corner of your eyes.
@@ -200,8 +201,10 @@
 	if(victim.flags_1 & IS_SPINNING_1)
 		return DEVIATION_NONE
 
-	if(HAS_TRAIT(victim, TRAIT_FLASH_SENSITIVE)) //If your eyes are sensitive and can be flashed from any direction.
-		return DEVIATION_NONE
+	if(iscarbon(victim))
+		var/mob/living/carbon/carbon_victim = victim
+		if(carbon_victim.get_eye_protection() < FLASH_PROTECTION_SENSITIVE) // If we have really bad flash sensitivity, usually due to really sensitive eyes, we get flashed from all directions
+			return DEVIATION_NONE
 
 	// Are they on the same tile? We'll return partial deviation. This may be someone flashing while lying down
 	// or flashing someone they're stood on the same turf as, or a borg flashing someone buckled to them.

code/modules/surgery/organs/eyes.dm

@@ -517,19 +517,12 @@
 	desc = "These eyes seem to stare back no matter the direction you look at it from."
 	eye_icon_state = "flyeyes"
 	icon_state = "eyeballs-fly"
-
-/obj/item/organ/internal/eyes/fly/Insert(mob/living/carbon/eye_owner, special = FALSE, drop_if_replaced = TRUE)
-	. = ..()
-	ADD_TRAIT(eye_owner, TRAIT_FLASH_SENSITIVE, ORGAN_TRAIT)
-
-/obj/item/organ/internal/eyes/fly/Remove(mob/living/carbon/eye_owner, special = FALSE)
-	REMOVE_TRAIT(eye_owner, TRAIT_FLASH_SENSITIVE, ORGAN_TRAIT)
-	return ..()
+	flash_protect = FLASH_PROTECTION_HYPER_SENSITIVE
 
 /obj/item/organ/internal/eyes/night_vision/maintenance_adapted
 	name = "adapted eyes"
 	desc = "These red eyes look like two foggy marbles. They give off a particularly worrying glow in the dark."
-	flash_protect = FLASH_PROTECTION_SENSITIVE
+	flash_protect = FLASH_PROTECTION_HYPER_SENSITIVE
 	eye_color_left = "f00"
 	eye_color_right = "f00"
 	icon_state = "adapted_eyes"
@@ -545,8 +538,6 @@
 	adapt_light.on = TRUE
 	adapt_light.forceMove(adapted)
 	adapt_light.update_brightness(adapted)
-	//traits
-	ADD_TRAIT(adapted, TRAIT_FLASH_SENSITIVE, ORGAN_TRAIT)
 	ADD_TRAIT(adapted, TRAIT_UNNATURAL_RED_GLOWY_EYES, ORGAN_TRAIT)
 
 /obj/item/organ/internal/eyes/night_vision/maintenance_adapted/on_life(delta_time, times_fired)
@@ -565,7 +556,5 @@
 	adapt_light.on = FALSE
 	adapt_light.update_brightness(unadapted)
 	adapt_light.forceMove(src)
-	//traits
-	REMOVE_TRAIT(unadapted, TRAIT_FLASH_SENSITIVE, ORGAN_TRAIT)
 	REMOVE_TRAIT(unadapted, TRAIT_UNNATURAL_RED_GLOWY_EYES, ORGAN_TRAIT)
 	return ..()