firebreath change + update to tg genetics + calc patch

code/datums/mutations/space_adaptation.dm

@@ -0,0 +1,30 @@
+//Cold Resistance gives your entire body an orange halo, and makes you immune to the effects of vacuum and cold.
+/datum/mutation/human/space_adaptation
+	name = "Space Adaptation"
+	desc = "A strange mutation that renders the host immune to the vacuum if space. Will still need an oxygen supply."
+	quality = POSITIVE
+	difficulty = 16
+	text_gain_indication = "<span class='notice'>Your body feels warm!</span>"
+	time_coeff = 5
+	instability = 30
+
+/datum/mutation/human/space_adaptation/New(class_ = MUT_OTHER, timer, datum/mutation/human/copymut)
+	..()
+	if(!(type in visual_indicators))
+		visual_indicators[type] = list(mutable_appearance('icons/effects/genetics.dmi', "fire", -MUTATIONS_LAYER))
+
+/datum/mutation/human/space_adaptation/get_visual_indicator(mob/living/carbon/human/owner)
+	return visual_indicators[type][1]
+
+/datum/mutation/human/space_adaptation/on_acquiring(mob/living/carbon/human/owner)
+	if(..())
+		return
+	ADD_TRAIT(owner, TRAIT_RESISTCOLD, "cold_resistance")
+	ADD_TRAIT(owner, TRAIT_RESISTLOWPRESSURE, "cold_resistance")
+
+/datum/mutation/human/space_adaptation/on_losing(mob/living/carbon/human/owner)
+	if(..())
+		return
+	REMOVE_TRAIT(owner, TRAIT_RESISTCOLD, "cold_resistance")
+	REMOVE_TRAIT(owner, TRAIT_RESISTLOWPRESSURE, "cold_resistance")
+