stop this nonsense

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

@@ -27,7 +27,7 @@
 // taken from /mob/living/carbon/human/interactive/
 /mob/living/carbon/monkey/proc/walk2derpless(target)
 	if(!target || IsStandingStill())
-		return 0
+		return FALSE
 
 	if(myPath.len <= 0)
 		myPath = get_path_to(src, target, 250, 1)
@@ -39,14 +39,14 @@
 					if(myPath.len >= 1)
 						walk_to(src,myPath[1],0,5)
 						myPath -= myPath[1]
-			return 1
+			return TRUE
 
 	// failed to path correctly so just try to head straight for a bit
 	walk_to(src,get_turf(target),0,5)
 	sleep(1)
 	walk_to(src,0)
 
-	return 0
+	return FALSE
 
 // taken from /mob/living/carbon/human/interactive/
 /mob/living/carbon/monkey/proc/IsDeadOrIncap(checkDead = TRUE)

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

@@ -137,7 +137,7 @@
 /mob/living/carbon/monkey/has_smoke_protection()
 	if(wear_mask)
 		if(wear_mask.clothing_flags & BLOCK_GAS_SMOKE_EFFECT)
-			return 1
+			return TRUE
 
 /mob/living/carbon/monkey/handle_fire()
 	. = ..()

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

@@ -171,8 +171,8 @@ GLOBAL_LIST_INIT(strippable_monkey_items, create_strippable_list(list(
 
 /mob/living/carbon/monkey/IsVocal()
 	if(!getorganslot(ORGAN_SLOT_LUNGS))
-		return 0
-	return 1
+		return FALSE
+	return TRUE
 
 /mob/living/carbon/monkey/can_use_guns(obj/item/G)
 	return TRUE

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

@@ -114,7 +114,7 @@
 			if(!affecting)
 				affecting = get_bodypart(BODY_ZONE_CHEST)
 			if(!dismembering_strike(M, affecting.body_zone)) //Dismemberment successful
-				return 1
+				return TRUE
 			apply_damage(damage, BRUTE, affecting)
 
 		else
@@ -159,7 +159,7 @@
 		damage = rand(20, 40)
 	var/dam_zone = dismembering_strike(M, pick(BODY_ZONE_HEAD, BODY_ZONE_CHEST, BODY_ZONE_L_ARM, BODY_ZONE_R_ARM, BODY_ZONE_L_LEG, BODY_ZONE_R_LEG))
 	if(!dam_zone) //Dismemberment successful
-		return 1
+		return TRUE
 	var/obj/item/bodypart/affecting = get_bodypart(ran_zone(dam_zone))
 	if(!affecting)
 		affecting = get_bodypart(BODY_ZONE_CHEST)