[READY] Monkey mode overhaul

code/modules/mob/living/carbon/human/human.dm

@@ -847,7 +847,8 @@
 	return TRUE
 
 /mob/living/carbon/human/update_gravity(has_gravity,override = 0)
-	override = dna.species.override_float
+	if(dna && dna.species) //prevents a runtime while a human is being monkeyfied
+		override = dna.species.override_float
 	..()
 
 /mob/living/carbon/human/vomit(lost_nutrition = 10, blood = 0, stun = 1, distance = 0, message = 1, toxic = 0)

code/modules/mob/living/carbon/human/human_movement.dm

@@ -23,7 +23,7 @@
 			. = 1
 
 /mob/living/carbon/human/mob_negates_gravity()
-	return ((shoes && shoes.negates_gravity()) || dna.species.negates_gravity(src))
+	return ((shoes && shoes.negates_gravity()) || (dna.species.negates_gravity(src)))
 
 /mob/living/carbon/human/Move(NewLoc, direct)
 	. = ..()

code/modules/mob/living/carbon/human/life.dm

@@ -93,19 +93,18 @@
 
 		failed_last_breath = 1
 
-		if(dna && dna.species)
-			var/datum/species/S = dna.species
+		var/datum/species/S = dna.species
 
-			if(S.breathid == "o2")
-				throw_alert("not_enough_oxy", /obj/screen/alert/not_enough_oxy)
-			else if(S.breathid == "tox")
-				throw_alert("not_enough_tox", /obj/screen/alert/not_enough_tox)
-			else if(S.breathid == "co2")
-				throw_alert("not_enough_co2", /obj/screen/alert/not_enough_co2)
-			else if(S.breathid == "n2")
-				throw_alert("not_enough_nitro", /obj/screen/alert/not_enough_nitro)
+		if(S.breathid == "o2")
+			throw_alert("not_enough_oxy", /obj/screen/alert/not_enough_oxy)
+		else if(S.breathid == "tox")
+			throw_alert("not_enough_tox", /obj/screen/alert/not_enough_tox)
+		else if(S.breathid == "co2")
+			throw_alert("not_enough_co2", /obj/screen/alert/not_enough_co2)
+		else if(S.breathid == "n2")
+			throw_alert("not_enough_nitro", /obj/screen/alert/not_enough_nitro)
 
-		return 0
+		return FALSE
 	else
 		if(istype(L, /obj/item/organ/lungs))
 			var/obj/item/organ/lungs/lun = L
@@ -238,10 +237,10 @@
 /mob/living/carbon/human/proc/get_cold_protection(temperature)
 
 	if(dna.check_mutation(COLDRES))
-		return 1 //Fully protected from the cold.
+		return TRUE //Fully protected from the cold.
 
-	if(dna && (RESISTCOLD in dna.species.species_traits))
-		return 1
+	if(RESISTCOLD in dna.species.species_traits)
+		return TRUE
 
 	if(istype(loc, /obj/item/device/dogborg/sleeper))
 		return 1 //freezing to death in sleepers ruins fun.

code/modules/mob/living/carbon/monkey/monkey.dm

@@ -11,7 +11,7 @@
 	butcher_results = list(/obj/item/reagent_containers/food/snacks/meat/slab/monkey = 5, /obj/item/stack/sheet/animalhide/monkey = 1)
 	type_of_meat = /obj/item/reagent_containers/food/snacks/meat/slab/monkey
 	gib_type = /obj/effect/decal/cleanable/blood/gibs
-	unique_name = 1
+	unique_name = TRUE
 	bodyparts = list(/obj/item/bodypart/chest/monkey, /obj/item/bodypart/head/monkey, /obj/item/bodypart/l_arm/monkey,
 					 /obj/item/bodypart/r_arm/monkey, /obj/item/bodypart/r_leg/monkey, /obj/item/bodypart/l_leg/monkey)
 	devourable = TRUE
@@ -62,7 +62,7 @@
 
 	if (bodytemperature < 283.222)
 		. += (283.222 - bodytemperature) / 10 * 1.75
-		
+
 	var/static/config_monkey_delay
 	if(isnull(config_monkey_delay))
 		config_monkey_delay = CONFIG_GET(number/monkey_delay)
@@ -89,13 +89,15 @@
 
 
 /mob/living/carbon/monkey/IsAdvancedToolUser()//Unless its monkey mode monkeys cant use advanced tools
-	return 0
+	if(mind && is_monkey(mind))
+		return TRUE
+	return FALSE
 
 /mob/living/carbon/monkey/reagent_check(datum/reagent/R) //can metabolize all reagents
-	return 0
+	return FALSE
 
 /mob/living/carbon/monkey/canBeHandcuffed()
-	return 1
+	return TRUE
 
 /mob/living/carbon/monkey/assess_threat(judgement_criteria, lasercolor = "", datum/callback/weaponcheck=null)
 	if(judgement_criteria & JUDGE_EMAGGED)