Bools and returns super-pr (#53221) (#565)

Replaces like 70-80% of 0 and such, as a side effect cleaned up a bunch of returns
Edit: Most left out ones are in mecha which should be done in mecha refactor already
Oh my look how clean it is

Co-authored-by: TiviPlus <TiviPlus>
Co-authored-by: Couls <coul422@gmail.com>

Co-authored-by: TiviPlus <57223640+TiviPlus@users.noreply.github.com>
Co-authored-by: Couls <coul422@gmail.com>

code/modules/mob/dead/new_player/login.dm

@@ -6,7 +6,7 @@
 		client.set_db_player_flags()
 	if(!mind)
 		mind = new /datum/mind(key)
-		mind.active = 1
+		mind.active = TRUE
 		mind.current = src
 
 	. = ..()

code/modules/mob/dead/new_player/new_player.dm

@@ -108,10 +108,10 @@
 
 /mob/dead/new_player/Topic(href, href_list[])
 	if(src != usr)
-		return 0
+		return
 
 	if(!client)
-		return 0
+		return
 
 	//Determines Relevent Population Cap
 	var/relevant_cap
@@ -124,7 +124,7 @@
 
 	if(href_list["show_preferences"])
 		client.prefs.ShowChoices(src)
-		return 1
+		return TRUE
 
 	if(href_list["ready"])
 		var/tready = text2num(href_list["ready"])
@@ -451,7 +451,7 @@
 	if(mind)
 		if(transfer_after)
 			mind.late_joiner = TRUE
-		mind.active = 0					//we wish to transfer the key manually
+		mind.active = FALSE					//we wish to transfer the key manually
 		mind.transfer_to(H)					//won't transfer key since the mind is not active
 		mind.original_character = H
 

code/modules/mob/living/blood.dm

@@ -120,16 +120,16 @@
 //Gets blood from mob to a container or other mob, preserving all data in it.
 /mob/living/proc/transfer_blood_to(atom/movable/AM, amount, forced)
 	if(!blood_volume || !AM.reagents)
-		return 0
+		return FALSE
 	if(blood_volume < BLOOD_VOLUME_BAD && !forced)
-		return 0
+		return FALSE
 
 	if(blood_volume < amount)
 		amount = blood_volume
 
 	var/blood_id = get_blood_id()
 	if(!blood_id)
-		return 0
+		return FALSE
 
 	blood_volume -= amount
 
@@ -147,13 +147,13 @@
 						C.ForceContractDisease(D)
 				if(!(blood_data["blood_type"] in get_safe_blood(C.dna.blood_type)))
 					C.reagents.add_reagent(/datum/reagent/toxin, amount * 0.5)
-					return 1
+					return TRUE
 
 			C.blood_volume = min(C.blood_volume + round(amount, 0.1), BLOOD_VOLUME_MAX_LETHAL)
-			return 1
+			return TRUE
 
 	AM.reagents.add_reagent(blood_id, amount, blood_data, bodytemperature)
-	return 1
+	return TRUE
 
 
 /mob/living/proc/get_blood_data(blood_id)

code/modules/mob/living/brain/brain.dm

@@ -56,9 +56,9 @@
 	return // no eyes, no flashing
 
 /mob/living/brain/can_be_revived()
-	. = 1
 	if(!container || health <= HEALTH_THRESHOLD_DEAD)
-		return 0
+		return FALSE
+	return TRUE
 
 /mob/living/brain/fully_replace_character_name(oldname,newname)
 	..()

code/modules/mob/living/brain/life.dm

@@ -1,6 +1,5 @@
 
 /mob/living/brain/Life()
-	set invisibility = 0
 	if (notransform)
 		return
 	if(!loc)

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

@@ -19,9 +19,9 @@
 
 	heat_protection = 0.5 // minor heat insulation
 
-	var/leaping = 0
+	var/leaping = FALSE
 	gib_type = /obj/effect/decal/cleanable/xenoblood/xgibs
-	unique_name = 1
+	unique_name = TRUE
 
 	var/static/regex/alien_name_regex = new("alien (larva|sentinel|drone|hunter|praetorian|queen)( \\(\\d+\\))?")
 

code/modules/mob/living/carbon/alien/alien_defense.dm

@@ -54,8 +54,9 @@ In all, this is a lot like the monkey code. /N
 
 
 /mob/living/carbon/alien/attack_hand(mob/living/carbon/human/M)
-	if(..())	//to allow surgery to return properly.
-		return 0
+	. = ..()
+	if(.)	//to allow surgery to return properly.
+		return FALSE
 
 	switch(M.a_intent)
 		if("help")
@@ -64,11 +65,11 @@ In all, this is a lot like the monkey code. /N
 			grabbedby(M)
 		if ("harm")
 			M.do_attack_animation(src, ATTACK_EFFECT_PUNCH)
-			return 1
+			return TRUE
 		if("disarm")
 			M.do_attack_animation(src, ATTACK_EFFECT_DISARM)
-			return 1
-	return 0
+			return TRUE
+	return FALSE
 
 
 /mob/living/carbon/alien/attack_paw(mob/living/carbon/monkey/M)
@@ -133,4 +134,4 @@ In all, this is a lot like the monkey code. /N
 	return 0
 
 /mob/living/carbon/alien/acid_act(acidpwr, acid_volume)
-	return 0//aliens are immune to acid.
+	return FALSE//aliens are immune to acid.

code/modules/mob/living/carbon/alien/humanoid/alien_powers.dm

@@ -77,10 +77,10 @@ Doesn't work on other aliens/AI.*/
 /obj/effect/proc_holder/alien/plant/fire(mob/living/carbon/user)
 	if(locate(/obj/structure/alien/weeds/node) in get_turf(user))
 		to_chat(user, "<span class='warning'>There's already a weed node here!</span>")
-		return 0
+		return FALSE
 	user.visible_message("<span class='alertalien'>[user] plants some alien weeds!</span>")
 	new/obj/structure/alien/weeds/node(user.loc)
-	return 1
+	return TRUE
 
 /obj/effect/proc_holder/alien/whisper
 	name = "Whisper"
@@ -94,7 +94,7 @@ Doesn't work on other aliens/AI.*/
 		options += Ms
 	var/mob/living/M = input("Select who to whisper to:","Whisper to?",null) as null|mob in sortNames(options)
 	if(!M)
-		return 0
+		return FALSE
 	if(M.anti_magic_check(FALSE, FALSE, TRUE, 0))
 		to_chat(user, "<span class='noticealien'>As you try to communicate with [M], you're suddenly stopped by a vision of a massive tinfoil wall that streches beyond visible range. It seems you've been foiled.</span>")
 		return FALSE
@@ -113,8 +113,8 @@ Doesn't work on other aliens/AI.*/
 			var/follow_link_whispee = FOLLOW_LINK(ded, M)
 			to_chat(ded, "[follow_link_user] <span class='name'>[user]</span> <span class='alertalien'>Alien Whisper --> </span> [follow_link_whispee] <span class='name'>[M]</span> <span class='noticealien'>[msg]</span>")
 	else
-		return 0
-	return 1
+		return FALSE
+	return TRUE
 
 /obj/effect/proc_holder/alien/transfer
 	name = "Transfer Plasma"
@@ -129,7 +129,7 @@ Doesn't work on other aliens/AI.*/
 			aliens_around.Add(A)
 	var/mob/living/carbon/M = input("Select who to transfer to:","Transfer plasma to?",null) as mob in sortNames(aliens_around)
 	if(!M)
-		return 0
+		return
 	var/amount = input("Amount:", "Transfer Plasma to [M]") as num|null
 	if (amount)
 		amount = min(abs(round(amount)), user.getPlasma())
@@ -158,21 +158,19 @@ Doesn't work on other aliens/AI.*/
 	if(target in oview(1,user))
 		if(target.acid_act(200, 100))
 			user.visible_message("<span class='alertalien'>[user] vomits globs of vile stuff all over [target]. It begins to sizzle and melt under the bubbling mess of acid!</span>")
-			return 1
+			return TRUE
 		else
 			to_chat(user, "<span class='noticealien'>You cannot dissolve this object.</span>")
+			return FALSE
 
-
-			return 0
-	else
-		to_chat(src, "<span class='noticealien'>[target] is too far away.</span>")
-		return 0
+	to_chat(src, "<span class='noticealien'>[target] is too far away.</span>")
+	return FALSE
 
 
 /obj/effect/proc_holder/alien/acid/fire(mob/living/carbon/alien/user)
 	var/O = input("Select what to dissolve:","Dissolve",null) as obj|turf in oview(1,user)
 	if(!O || user.incapacitated())
-		return 0
+		return FALSE
 	else
 		return corrode(O,user)
 
@@ -208,19 +206,20 @@ Doesn't work on other aliens/AI.*/
 	action.UpdateButtonIcon()
 
 /obj/effect/proc_holder/alien/neurotoxin/InterceptClickOn(mob/living/caller, params, atom/target)
-	if(..())
+	. = ..()
+	if(.)
 		return
 	var/p_cost = 50
 	if(!iscarbon(ranged_ability_user) || ranged_ability_user.stat)
 		remove_ranged_ability()
-		return
+		return FALSE
 
 	var/mob/living/carbon/user = ranged_ability_user
 
 	if(user.getPlasma() < p_cost)
 		to_chat(user, "<span class='warning'>You need at least [p_cost] plasma to spit.</span>")
 		remove_ranged_ability()
-		return
+		return FALSE
 
 	var/turf/T = user.loc
 	var/turf/U = get_step(user, user.dir) // Get the tile infront of the move, based on their direction
@@ -315,14 +314,14 @@ Doesn't work on other aliens/AI.*/
 /mob/living/carbon/proc/adjustPlasma(amount)
 	var/obj/item/organ/alien/plasmavessel/vessel = getorgan(/obj/item/organ/alien/plasmavessel)
 	if(!vessel)
-		return 0
+		return FALSE
 	vessel.storedPlasma = max(vessel.storedPlasma + amount,0)
 	vessel.storedPlasma = min(vessel.storedPlasma, vessel.max_plasma) //upper limit of max_plasma, lower limit of 0
 	for(var/X in abilities)
 		var/obj/effect/proc_holder/alien/APH = X
 		if(APH.has_action)
 			APH.action.UpdateButtonIcon()
-	return 1
+	return TRUE
 
 /mob/living/carbon/alien/adjustPlasma(amount)
 	. = ..()
@@ -331,6 +330,5 @@ Doesn't work on other aliens/AI.*/
 /mob/living/carbon/proc/usePlasma(amount)
 	if(getPlasma() >= amount)
 		adjustPlasma(-amount)
-		return 1
-
-	return 0
+		return TRUE
+	return FALSE

code/modules/mob/living/carbon/alien/humanoid/caste/drone.dm

@@ -26,18 +26,18 @@
 	var/obj/item/organ/alien/hivenode/node = user.getorgan(/obj/item/organ/alien/hivenode)
 	if(!node) //Players are Murphy's Law. We may not expect there to ever be a living xeno with no hivenode, but they _WILL_ make it happen.
 		to_chat(user, "<span class='danger'>Without the hivemind, you can't possibly hold the responsibility of leadership!</span>")
-		return 0
+		return FALSE
 	if(node.recent_queen_death)
 		to_chat(user, "<span class='danger'>Your thoughts are still too scattered to take up the position of leadership.</span>")
-		return 0
+		return FALSE
 
 	if(!isturf(user.loc))
 		to_chat(user, "<span class='warning'>You can't evolve here!</span>")
-		return 0
+		return FALSE
 	if(!get_alien_type(/mob/living/carbon/alien/humanoid/royal))
 		var/mob/living/carbon/alien/humanoid/royal/praetorian/new_xeno = new (user.loc)
 		user.alien_evolve(new_xeno)
-		return 1
+		return TRUE
 	else
 		to_chat(user, "<span class='warning'>We already have a living royal!</span>")
-		return 0
+		return FALSE

code/modules/mob/living/carbon/alien/humanoid/caste/praetorian.dm

@@ -29,14 +29,14 @@
 	var/obj/item/organ/alien/hivenode/node = user.getorgan(/obj/item/organ/alien/hivenode)
 	if(!node) //Just in case this particular Praetorian gets violated and kept by the RD as a replacement for Lamarr.
 		to_chat(user, "<span class='warning'>Without the hivemind, you would be unfit to rule as queen!</span>")
-		return 0
+		return FALSE
 	if(node.recent_queen_death)
 		to_chat(user, "<span class='warning'>You are still too burdened with guilt to evolve into a queen.</span>")
-		return 0
+		return FALSE
 	if(!get_alien_type(/mob/living/carbon/alien/humanoid/royal/queen))
 		var/mob/living/carbon/alien/humanoid/royal/queen/new_xeno = new (user.loc)
 		user.alien_evolve(new_xeno)
-		return 1
+		return TRUE
 	else
 		to_chat(user, "<span class='warning'>We already have an alive queen!</span>")
-		return 0
+		return FALSE

code/modules/mob/living/carbon/alien/humanoid/queen.dm

@@ -13,7 +13,7 @@
 	var/alt_inhands_file = 'icons/mob/alienqueen.dmi'
 
 /mob/living/carbon/alien/humanoid/royal/can_inject()
-	return 0
+	return FALSE
 
 /mob/living/carbon/alien/humanoid/royal/queen
 	name = "alien queen"
@@ -83,20 +83,20 @@
 	var/obj/item/queenpromote/prom
 	if(get_alien_type(/mob/living/carbon/alien/humanoid/royal/praetorian/))
 		to_chat(user, "<span class='noticealien'>You already have a Praetorian!</span>")
-		return 0
+		return
 	else
 		for(prom in user)
 			to_chat(user, "<span class='noticealien'>You discard [prom].</span>")
 			qdel(prom)
-			return 0
+			return
 
 		prom = new (user.loc)
 		if(!user.put_in_active_hand(prom, 1))
 			to_chat(user, "<span class='warning'>You must empty your hands before preparing the parasite.</span>")
-			return 0
+			return
 		else //Just in case telling the player only once is not enough!
 			to_chat(user, "<span class='noticealien'>Use the royal parasite on one of your children to promote her to Praetorian!</span>")
-	return 0
+	return
 
 /obj/item/queenpromote
 	name = "\improper royal parasite"

code/modules/mob/living/carbon/alien/larva/life.dm

@@ -1,7 +1,6 @@
 
 
 /mob/living/carbon/alien/larva/Life()
-	set invisibility = 0
 	if (notransform)
 		return
 	if(..() && !IS_IN_STASIS(src)) //not dead and not in stasis

code/modules/mob/living/carbon/alien/larva/powers.dm

@@ -57,7 +57,7 @@
 				new_xeno = new /mob/living/carbon/alien/humanoid/drone(L.loc)
 
 		L.alien_evolve(new_xeno)
-		return 0
+		return
 	else
 		to_chat(user, "<span class='warning'>You are not fully grown!</span>")
-		return 0
+		return

code/modules/mob/living/carbon/alien/organs.dm

@@ -103,7 +103,8 @@
 	zone = BODY_ZONE_HEAD
 	slot = "hivenode"
 	w_class = WEIGHT_CLASS_TINY
-	var/recent_queen_death = 0 //Indicates if the queen died recently, aliens are heavily weakened while this is active.
+	///Indicates if the queen died recently, aliens are heavily weakened while this is active.
+	var/recent_queen_death = FALSE
 	alien_powers = list(/obj/effect/proc_holder/alien/whisper)
 
 /obj/item/organ/alien/hivenode/Insert(mob/living/carbon/M, special = 0)
@@ -135,7 +136,7 @@
 	owner.add_confusion(30)
 	owner.stuttering += 30
 
-	recent_queen_death = 1
+	recent_queen_death = TRUE
 	owner.throw_alert("alien_noqueen", /obj/screen/alert/alien_vulnerable)
 	addtimer(CALLBACK(src, .proc/clear_queen_death), QUEEN_DEATH_DEBUFF_DURATION)
 
@@ -143,7 +144,7 @@
 /obj/item/organ/alien/hivenode/proc/clear_queen_death()
 	if(QDELETED(src)) //In case the node is deleted
 		return
-	recent_queen_death = 0
+	recent_queen_death = FALSE
 	if(!owner) //In case the xeno is butchered or subjected to surgery after death.
 		return
 	to_chat(owner, "<span class='noticealien'>The pain of the queen's death is easing. You begin to hear the hivemind again.</span>")

code/modules/mob/living/carbon/alien/special/facehugger.dm

@@ -96,15 +96,14 @@
 /obj/item/clothing/mask/facehugger/on_found(mob/finder)
 	if(stat == CONSCIOUS)
 		return HasProximity(finder)
-	return 0
 
 /obj/item/clothing/mask/facehugger/HasProximity(atom/movable/AM as mob|obj)
 	if(CanHug(AM) && Adjacent(AM))
 		return Leap(AM)
-	return 0
 
 /obj/item/clothing/mask/facehugger/throw_at(atom/target, range, speed, mob/thrower, spin=1, diagonals_first = 0, datum/callback/callback, quickstart = TRUE)
-	if(!..())
+	. = ..()
+	if(!.)
 		return
 	if(stat == CONSCIOUS)
 		icon_state = "[initial(icon_state)]_thrown"
@@ -248,22 +247,22 @@
 
 /proc/CanHug(mob/living/M)
 	if(!istype(M))
-		return 0
+		return FALSE
 	if(M.stat == DEAD)
-		return 0
+		return FALSE
 	if(M.getorgan(/obj/item/organ/alien/hivenode))
-		return 0
+		return FALSE
 
 	if(ismonkey(M))
-		return 1
+		return TRUE
 
 	var/mob/living/carbon/C = M
 	if(ishuman(C) && !(ITEM_SLOT_MASK in C.dna.species.no_equip))
 		var/mob/living/carbon/human/H = C
 		if(H.is_mouth_covered(head_only = 1))
-			return 0
-		return 1
-	return 0
+			return FALSE
+		return TRUE
+	return FALSE
 
 #undef MIN_ACTIVE_TIME
 #undef MAX_ACTIVE_TIME

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

@@ -871,7 +871,7 @@
 /mob/living/carbon/can_be_revived()
 	. = ..()
 	if(!getorgan(/obj/item/organ/brain) && (!mind || !mind.has_antag_datum(/datum/antagonist/changeling)))
-		return 0
+		return FALSE
 
 /mob/living/carbon/proc/can_defib()
 	if (suiciding)

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

@@ -24,9 +24,9 @@
 
 	if (back)
 		. += "[t_He] [t_has] [back.get_examine_string(user)] on [t_his] back."
-	var/appears_dead = 0
+	var/appears_dead = FALSE
 	if (stat == DEAD)
-		appears_dead = 1
+		appears_dead = TRUE
 		if(getorgan(/obj/item/organ/brain))
 			. += "<span class='deadsay'>[t_He] [t_is] limp and unresponsive, with no signs of life.</span>"
 		else if(get_bodypart(BODY_ZONE_HEAD))

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

@@ -167,7 +167,7 @@
 
 /mob/living/carbon/human/attacked_by(obj/item/I, mob/living/user)
 	if(!I || !user)
-		return 0
+		return FALSE
 
 	var/obj/item/bodypart/affecting
 	if(user == src)
@@ -212,7 +212,7 @@
 		affecting = get_bodypart(BODY_ZONE_CHEST)
 	if(M.a_intent == INTENT_HELP)
 		..() //shaking
-		return 0
+		return FALSE
 
 	if(M.a_intent == INTENT_DISARM) //Always drop item in hand, if no item, get stunned instead.
 		var/obj/item/I = get_active_held_item()
@@ -243,110 +243,115 @@
 		if(..()) //successful monkey bite, this handles disease contraction.
 			var/damage = rand(1, 3)
 			if(check_shields(M, damage, "the [M.name]"))
-				return 0
+				return FALSE
 			if(stat != DEAD)
 				apply_damage(damage, BRUTE, affecting, run_armor_check(affecting, MELEE))
-		return 1
+		return TRUE
 
 /mob/living/carbon/human/attack_alien(mob/living/carbon/alien/humanoid/M)
 	if(check_shields(M, 0, "the M.name"))
 		visible_message("<span class='danger'>[M] attempts to touch [src]!</span>", \
 						"<span class='danger'>[M] attempts to touch you!</span>", "<span class='hear'>You hear a swoosh!</span>", null, M)
 		to_chat(M, "<span class='warning'>You attempt to touch [src]!</span>")
-		return 0
+		return FALSE
+	. = ..()
+	if(!.)
+		return
+	if(M.a_intent == INTENT_HARM)
+		if (w_uniform)
+			w_uniform.add_fingerprint(M)
+		var/damage = prob(90) ? 20 : 0
+		if(!damage)
+			playsound(loc, 'sound/weapons/slashmiss.ogg', 50, TRUE, -1)
+			visible_message("<span class='danger'>[M] lunges at [src]!</span>", \
+							"<span class='userdanger'>[M] lunges at you!</span>", "<span class='hear'>You hear a swoosh!</span>", null, M)
+			to_chat(M, "<span class='danger'>You lunge at [src]!</span>")
+			return FALSE
+		var/obj/item/bodypart/affecting = get_bodypart(ran_zone(M.zone_selected))
+		if(!affecting)
+			affecting = get_bodypart(BODY_ZONE_CHEST)
+		var/armor_block = run_armor_check(affecting, MELEE,"","",10)
 
-	if(..())
-		if(M.a_intent == INTENT_HARM)
-			if (w_uniform)
-				w_uniform.add_fingerprint(M)
-			var/damage = prob(90) ? 20 : 0
-			if(!damage)
-				playsound(loc, 'sound/weapons/slashmiss.ogg', 50, TRUE, -1)
-				visible_message("<span class='danger'>[M] lunges at [src]!</span>", \
-								"<span class='userdanger'>[M] lunges at you!</span>", "<span class='hear'>You hear a swoosh!</span>", null, M)
-				to_chat(M, "<span class='danger'>You lunge at [src]!</span>")
-				return 0
-			var/obj/item/bodypart/affecting = get_bodypart(ran_zone(M.zone_selected))
-			if(!affecting)
-				affecting = get_bodypart(BODY_ZONE_CHEST)
-			var/armor_block = run_armor_check(affecting, MELEE,"","",10)
+		playsound(loc, 'sound/weapons/slice.ogg', 25, TRUE, -1)
+		visible_message("<span class='danger'>[M] slashes at [src]!</span>", \
+						"<span class='userdanger'>[M] slashes at you!</span>", "<span class='hear'>You hear a sickening sound of a slice!</span>", null, M)
+		to_chat(M, "<span class='danger'>You slash at [src]!</span>")
+		log_combat(M, src, "attacked")
+		if(!dismembering_strike(M, M.zone_selected)) //Dismemberment successful
+			return TRUE
+		apply_damage(damage, BRUTE, affecting, armor_block)
 
-			playsound(loc, 'sound/weapons/slice.ogg', 25, TRUE, -1)
-			visible_message("<span class='danger'>[M] slashes at [src]!</span>", \
-							"<span class='userdanger'>[M] slashes at you!</span>", "<span class='hear'>You hear a sickening sound of a slice!</span>", null, M)
-			to_chat(M, "<span class='danger'>You slash at [src]!</span>")
-			log_combat(M, src, "attacked")
-			if(!dismembering_strike(M, M.zone_selected)) //Dismemberment successful
-				return 1
-			apply_damage(damage, BRUTE, affecting, armor_block)
-
-		if(M.a_intent == INTENT_DISARM) //Always drop item in hand, if no item, get stun instead.
-			var/obj/item/I = get_active_held_item()
-			if(I && dropItemToGround(I))
-				playsound(loc, 'sound/weapons/slash.ogg', 25, TRUE, -1)
-				visible_message("<span class='danger'>[M] disarms [src]!</span>", \
-								"<span class='userdanger'>[M] disarms you!</span>", "<span class='hear'>You hear aggressive shuffling!</span>", null, M)
-				to_chat(M, "<span class='danger'>You disarm [src]!</span>")
-			else
-				playsound(loc, 'sound/weapons/pierce.ogg', 25, TRUE, -1)
-				Paralyze(100)
-				log_combat(M, src, "tackled")
-				visible_message("<span class='danger'>[M] tackles [src] down!</span>", \
-								"<span class='userdanger'>[M] tackles you down!</span>", "<span class='hear'>You hear aggressive shuffling followed by a loud thud!</span>", null, M)
-				to_chat(M, "<span class='danger'>You tackle [src] down!</span>")
+	if(M.a_intent == INTENT_DISARM) //Always drop item in hand, if no item, get stun instead.
+		var/obj/item/I = get_active_held_item()
+		if(I && dropItemToGround(I))
+			playsound(loc, 'sound/weapons/slash.ogg', 25, TRUE, -1)
+			visible_message("<span class='danger'>[M] disarms [src]!</span>", \
+							"<span class='userdanger'>[M] disarms you!</span>", "<span class='hear'>You hear aggressive shuffling!</span>", null, M)
+			to_chat(M, "<span class='danger'>You disarm [src]!</span>")
+		else
+			playsound(loc, 'sound/weapons/pierce.ogg', 25, TRUE, -1)
+			Paralyze(100)
+			log_combat(M, src, "tackled")
+			visible_message("<span class='danger'>[M] tackles [src] down!</span>", \
+							"<span class='userdanger'>[M] tackles you down!</span>", "<span class='hear'>You hear aggressive shuffling followed by a loud thud!</span>", null, M)
+			to_chat(M, "<span class='danger'>You tackle [src] down!</span>")
 
 
 /mob/living/carbon/human/attack_larva(mob/living/carbon/alien/larva/L)
-
-	if(..()) //successful larva bite.
-		var/damage = rand(1, 3)
-		if(check_shields(L, damage, "the [L.name]"))
-			return 0
-		if(stat != DEAD)
-			L.amount_grown = min(L.amount_grown + damage, L.max_grown)
-			var/obj/item/bodypart/affecting = get_bodypart(ran_zone(L.zone_selected))
-			if(!affecting)
-				affecting = get_bodypart(BODY_ZONE_CHEST)
-			var/armor_block = run_armor_check(affecting, MELEE)
-			apply_damage(damage, BRUTE, affecting, armor_block)
+	. = ..()
+	if(!.)
+		return //successful larva bite.
+	var/damage = rand(1, 3)
+	if(check_shields(L, damage, "the [L.name]"))
+		return FALSE
+	if(stat != DEAD)
+		L.amount_grown = min(L.amount_grown + damage, L.max_grown)
+		var/obj/item/bodypart/affecting = get_bodypart(ran_zone(L.zone_selected))
+		if(!affecting)
+			affecting = get_bodypart(BODY_ZONE_CHEST)
+		var/armor_block = run_armor_check(affecting, MELEE)
+		apply_damage(damage, BRUTE, affecting, armor_block)
 
 
 /mob/living/carbon/human/attack_animal(mob/living/simple_animal/M)
 	. = ..()
-	if(.)
-		var/damage = rand(M.melee_damage_lower, M.melee_damage_upper)
-		if(check_shields(M, damage, "the [M.name]", MELEE_ATTACK, M.armour_penetration))
-			return FALSE
-		var/dam_zone = dismembering_strike(M, pick(BODY_ZONE_CHEST, BODY_ZONE_PRECISE_L_HAND, BODY_ZONE_PRECISE_R_HAND, BODY_ZONE_L_LEG, BODY_ZONE_R_LEG))
-		if(!dam_zone) //Dismemberment successful
-			return TRUE
-		var/obj/item/bodypart/affecting = get_bodypart(ran_zone(dam_zone))
-		if(!affecting)
-			affecting = get_bodypart(BODY_ZONE_CHEST)
-		var/armor = run_armor_check(affecting, MELEE, armour_penetration = M.armour_penetration)
-		apply_damage(damage, M.melee_damage_type, affecting, armor, wound_bonus = M.wound_bonus, bare_wound_bonus = M.bare_wound_bonus, sharpness = M.sharpness)
+	if(!.)
+		return
+	var/damage = rand(M.melee_damage_lower, M.melee_damage_upper)
+	if(check_shields(M, damage, "the [M.name]", MELEE_ATTACK, M.armour_penetration))
+		return FALSE
+	var/dam_zone = dismembering_strike(M, pick(BODY_ZONE_CHEST, BODY_ZONE_PRECISE_L_HAND, BODY_ZONE_PRECISE_R_HAND, BODY_ZONE_L_LEG, BODY_ZONE_R_LEG))
+	if(!dam_zone) //Dismemberment successful
+		return TRUE
+	var/obj/item/bodypart/affecting = get_bodypart(ran_zone(dam_zone))
+	if(!affecting)
+		affecting = get_bodypart(BODY_ZONE_CHEST)
+	var/armor = run_armor_check(affecting, MELEE, armour_penetration = M.armour_penetration)
+	apply_damage(damage, M.melee_damage_type, affecting, armor, wound_bonus = M.wound_bonus, bare_wound_bonus = M.bare_wound_bonus, sharpness = M.sharpness)
 
 
 /mob/living/carbon/human/attack_slime(mob/living/simple_animal/slime/M)
-	if(..()) //successful slime attack
-		var/damage = rand(5, 25)
-		var/wound_mod = -45 // 25^1.4=90, 90-45=45
-		if(M.is_adult)
-			damage = rand(10, 35)
-			wound_mod = -90 // 35^1.4=145, 145-90=55
+	. = ..()
+	if(!.) // slime attack failed
+		return
+	var/damage = rand(5, 25)
+	var/wound_mod = -45 // 25^1.4=90, 90-45=45
+	if(M.is_adult)
+		damage = rand(10, 35)
+		wound_mod = -90 // 35^1.4=145, 145-90=55
 
-		if(check_shields(M, damage, "the [M.name]"))
-			return 0
+	if(check_shields(M, damage, "the [M.name]"))
+		return FALSE
 
-		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
+	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 TRUE
 
-		var/obj/item/bodypart/affecting = get_bodypart(ran_zone(dam_zone))
-		if(!affecting)
-			affecting = get_bodypart(BODY_ZONE_CHEST)
-		var/armor_block = run_armor_check(affecting, MELEE)
-		apply_damage(damage, BRUTE, affecting, armor_block, wound_bonus=wound_mod)
+	var/obj/item/bodypart/affecting = get_bodypart(ran_zone(dam_zone))
+	if(!affecting)
+		affecting = get_bodypart(BODY_ZONE_CHEST)
+	var/armor_block = run_armor_check(affecting, MELEE)
+	apply_damage(damage, BRUTE, affecting, armor_block, wound_bonus=wound_mod)
 
 /mob/living/carbon/human/mech_melee_attack(obj/mecha/M)
 

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

@@ -9,7 +9,7 @@
 	possible_a_intents = list(INTENT_HELP, INTENT_DISARM, INTENT_GRAB, INTENT_HARM)
 	pressure_resistance = 25
 	can_buckle = TRUE
-	buckle_lying = FALSE
+	buckle_lying = 0
 	mob_biotypes = MOB_ORGANIC|MOB_HUMANOID
 	blocks_emissive = EMISSIVE_BLOCK_UNIQUE
 	can_be_shoved_into = TRUE

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

@@ -11,14 +11,14 @@
 
 /mob/living/carbon/human/slip(knockdown_amount, obj/O, lube, paralyze, forcedrop)
 	if(HAS_TRAIT(src, TRAIT_NOSLIPALL))
-		return 0
+		return FALSE
 	if (!(lube & GALOSHES_DONT_HELP))
 		if(HAS_TRAIT(src, TRAIT_NOSLIPWATER))
-			return 0
+			return FALSE
 		if(shoes && istype(shoes, /obj/item/clothing))
 			var/obj/item/clothing/CS = shoes
 			if (CS.clothing_flags & NOSLIP)
-				return 0
+				return FALSE
 	if (lube & SLIDE_ICE)
 		if(shoes && istype(shoes, /obj/item/clothing))
 			var/obj/item/clothing/CS = shoes

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

@@ -60,8 +60,8 @@
 
 /mob/living/carbon/human/radio(message, list/message_mods = list(), list/spans, language) //Poly has a copy of this, lazy bastard
 	. = ..()
-	if(. != FALSE)
-		return .
+	if(.)
+		return
 
 	if(message_mods[MODE_HEADSET])
 		if(ears)
@@ -76,7 +76,7 @@
 			ears.talk_into(src, message, message_mods[RADIO_EXTENSION], spans, language, message_mods)
 			return ITALICS | REDUCE_RANGE
 
-	return 0
+	return FALSE
 
 /mob/living/carbon/human/get_alt_name()
 	if(name != GetVoice())

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

@@ -19,14 +19,13 @@
 #define THERMAL_PROTECTION_HAND_RIGHT	0.025
 
 /mob/living/carbon/human/Life()
-	set invisibility = 0
 	if (notransform)
 		return
 
 	. = ..()
 
 	if (QDELETED(src))
-		return 0
+		return FALSE
 
 	if(!IS_IN_STASIS(src))
 		if(.) //not dead
@@ -49,7 +48,7 @@
 	name = get_visible_name()
 
 	if(stat != DEAD)
-		return 1
+		return TRUE
 
 
 /mob/living/carbon/human/calculate_affecting_pressure(pressure)

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

@@ -240,20 +240,6 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 /datum/species/proc/copy_properties_from(datum/species/old_species)
 	return
 
-/**
-  * Checks if this carbon is allowed to be a certain job or rank.
-  *
-  * Override this locally if you want to define when this species qualifies for what rank if human authority is enforced.
-  * Arguments:
-  * * rank - Rank to be tested.
-  * * features - Features of a species that factors into rank qualifications, like a human with cat ears being unable to join command positions.
-  */
-/datum/species/proc/qualifies_for_rank(rank, list/features)
-	if(rank in GLOB.command_positions)
-		return 0
-	return 1
-
-
 /** regenerate_organs
   * Corrects organs in a carbon, removing ones it doesn't need and adding ones it does
   *
@@ -1185,7 +1171,7 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 			H.throw_alert("nutrition", /obj/screen/alert/starving)
 
 /datum/species/proc/update_health_hud(mob/living/carbon/human/H)
-	return 0
+	return FALSE
 
 /datum/species/proc/handle_mutations_and_radiation(mob/living/carbon/human/H)
 	if(HAS_TRAIT(H, TRAIT_RADIMMUNE))
@@ -1382,7 +1368,7 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 		H.visible_message("<span class='warning'>[M] attempts to touch [H]!</span>", \
 						"<span class='danger'>[M] attempts to touch you!</span>", "<span class='hear'>You hear a swoosh!</span>", COMBAT_MESSAGE_RANGE, M)
 		to_chat(M, "<span class='warning'>You attempt to touch [H]!</span>")
-		return 0
+		return
 	SEND_SIGNAL(M, COMSIG_MOB_ATTACK_HAND, M, H, attacker_style)
 	switch(M.a_intent)
 		if("help")
@@ -1401,11 +1387,11 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 	// Allows you to put in item-specific reactions based on species
 	if(user != H)
 		if(H.check_shields(I, I.force, "the [I.name]", MELEE_ATTACK, I.armour_penetration))
-			return 0
+			return FALSE
 	if(H.check_block())
 		H.visible_message("<span class='warning'>[H] blocks [I]!</span>", \
 						"<span class='userdanger'>You block [I]!</span>")
-		return 0
+		return FALSE
 
 	var/hit_area
 	if(!affecting) //Something went wrong. Maybe the limb is missing?
@@ -1428,14 +1414,14 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 	H.send_item_attack_message(I, user, hit_area, affecting)
 
 	if(!I.force)
-		return 0 //item force is zero
+		return FALSE //item force is zero
 
-	var/bloody = 0
+	var/bloody = FALSE
 	if(((I.damtype == BRUTE) && I.force && prob(25 + (I.force * 2))))
 		if(affecting.status == BODYPART_ORGANIC)
 			I.add_mob_blood(H)	//Make the weapon bloody, not the person.
 			if(prob(I.force * 2))	//blood spatter!
-				bloody = 1
+				bloody = TRUE
 				var/turf/location = H.loc
 				if(istype(location))
 					H.add_splatter_floor(location)

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

@@ -15,9 +15,6 @@
 	var/original_felinid = TRUE //set to false for felinids created by mass-purrbation
 	payday_modifier = 0.75
 
-/datum/species/human/felinid/qualifies_for_rank(rank, list/features)
-	return TRUE
-
 //Curiosity killed the cat's wagging tail.
 /datum/species/human/felinid/spec_death(gibbed, mob/living/carbon/human/H)
 	if(H)

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

@@ -471,10 +471,12 @@
 	var/last_teleport = 0
 
 /datum/action/innate/unstable_teleport/IsAvailable()
-	if(..())
-		if(world.time > last_teleport + cooldown)
-			return 1
-		return 0
+	. = ..()
+	if(!.)
+		return
+	if(world.time > last_teleport + cooldown)
+		return TRUE
+	return FALSE
 
 /datum/action/innate/unstable_teleport/Activate()
 	var/mob/living/carbon/human/H = owner

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

@@ -10,6 +10,3 @@
 	liked_food = JUNKFOOD | FRIED
 	changesource_flags = MIRROR_BADMIN | WABBAJACK | MIRROR_MAGIC | MIRROR_PRIDE | ERT_SPAWN | RACE_SWAP | SLIME_EXTRACT
 	payday_modifier = 1
-
-/datum/species/human/qualifies_for_rank(rank, list/features)
-	return TRUE	//Pure humans are always allowed in all roles.

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

@@ -73,14 +73,15 @@
 	background_icon_state = "bg_alien"
 
 /datum/action/innate/regenerate_limbs/IsAvailable()
-	if(..())
-		var/mob/living/carbon/human/H = owner
-		var/list/limbs_to_heal = H.get_missing_limbs()
-		if(limbs_to_heal.len < 1)
-			return 0
-		if(H.blood_volume >= BLOOD_VOLUME_OKAY+40)
-			return 1
-		return 0
+	. = ..()
+	if(!.)
+		return
+	var/mob/living/carbon/human/H = owner
+	var/list/limbs_to_heal = H.get_missing_limbs()
+	if(limbs_to_heal.len < 1)
+		return FALSE
+	if(H.blood_volume >= BLOOD_VOLUME_OKAY+40)
+		return TRUE
 
 /datum/action/innate/regenerate_limbs/Activate()
 	var/mob/living/carbon/human/H = owner
@@ -182,11 +183,13 @@
 	background_icon_state = "bg_alien"
 
 /datum/action/innate/split_body/IsAvailable()
-	if(..())
-		var/mob/living/carbon/human/H = owner
-		if(H.blood_volume >= BLOOD_VOLUME_SLIME_SPLIT)
-			return 1
-		return 0
+	. = ..()
+	if(!.)
+		return
+	var/mob/living/carbon/human/H = owner
+	if(H.blood_volume >= BLOOD_VOLUME_SLIME_SPLIT)
+		return TRUE
+	return FALSE
 
 /datum/action/innate/split_body/Activate()
 	var/mob/living/carbon/human/H = owner

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

@@ -158,7 +158,6 @@
 	H.equipOutfit(O, visualsOnly)
 	H.internal = H.get_item_for_held_index(2)
 	H.update_internals_hud_icon(1)
-	return 0
 
 /datum/species/plasmaman/random_name(gender,unique,lastname)
 	if(unique)

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

@@ -1,5 +1,4 @@
 /mob/living/carbon/Life()
-	set invisibility = 0
 
 	if(notransform)
 		return
@@ -137,9 +136,9 @@
 //Third link in a breath chain, calls handle_breath_temperature()
 /mob/living/carbon/proc/check_breath(datum/gas_mixture/breath)
 	if(status_flags & GODMODE)
-		return
+		return FALSE
 	if(HAS_TRAIT(src, TRAIT_NOBREATH))
-		return
+		return FALSE
 
 	var/obj/item/organ/lungs = getorganslot(ORGAN_SLOT_LUNGS)
 	if(!lungs)
@@ -148,12 +147,12 @@
 	//CRIT
 	if(!breath || (breath.total_moles() == 0) || !lungs)
 		if(reagents.has_reagent(/datum/reagent/medicine/epinephrine, needs_metabolizing = TRUE) && lungs)
-			return
+			return FALSE
 		adjustOxyLoss(1)
 
 		failed_last_breath = 1
 		throw_alert("not_enough_oxy", /obj/screen/alert/not_enough_oxy)
-		return 0
+		return FALSE
 
 	var/safe_oxy_min = 16
 	var/safe_co2_max = 10
@@ -305,7 +304,7 @@
 	//BREATH TEMPERATURE
 	handle_breath_temperature(breath)
 
-	return 1
+	return TRUE
 
 //Fourth and final link in a breath chain
 /mob/living/carbon/proc/handle_breath_temperature(datum/gas_mixture/breath)

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, get_turf(target), /turf/proc/Distance, MAX_RANGE_FIND + 1, 250,1)
@@ -39,26 +39,26 @@
 					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)
 	if(!(mobility_flags & MOBILITY_FLAGS_INTERACTION))
-		return 1
+		return TRUE
 	if(health <= 0 && checkDead)
-		return 1
+		return TRUE
 	if(IsStun() || IsParalyzed())
-		return 1
+		return TRUE
 	if(stat)
-		return 1
-	return 0
+		return TRUE
+	return FALSE
 
 /mob/living/carbon/monkey/proc/battle_screech()
 	if(next_battle_screech < world.time)

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

@@ -4,8 +4,6 @@
 
 
 /mob/living/carbon/monkey/Life()
-	set invisibility = 0
-
 	if (notransform)
 		return
 

code/modules/mob/living/life.dm

@@ -3,7 +3,6 @@
 
 /mob/living/proc/Life(seconds, times_fired)
 	set waitfor = FALSE
-	set invisibility = 0
 
 	if((movement_type & FLYING) && !(movement_type & FLOATING))	//TODO: Better floating
 		float(on = TRUE)

code/modules/mob/living/living.dm

@@ -140,7 +140,7 @@
 			//switch our position with M
 			if(loc && !loc.Adjacent(M.loc))
 				return TRUE
-			now_pushing = 1
+			now_pushing = TRUE
 			var/oldloc = loc
 			var/oldMloc = M.loc
 
@@ -160,7 +160,7 @@
 			if(!M_passmob)
 				M.pass_flags &= ~PASSMOB
 
-			now_pushing = 0
+			now_pushing = FALSE
 
 			if(!move_failed)
 				return TRUE
@@ -1132,7 +1132,7 @@
 
 /mob/living/proc/ExtinguishMob()
 	if(on_fire)
-		on_fire = 0
+		on_fire = FALSE
 		fire_stacks = 0
 		for(var/obj/effect/dummy/lighting_obj/moblight/fire/F in src)
 			qdel(F)

code/modules/mob/living/living_defense.dm

@@ -174,12 +174,12 @@
 				if(GRAB_NECK)
 					log_combat(user, src, "attempted to strangle", addition="kill grab")
 			if(!do_mob(user, src, grab_upgrade_time))
-				return 0
+				return FALSE
 			if(!user.pulling || user.pulling != src || user.grab_state != old_grab_state)
-				return 0
+				return FALSE
 			if(user.a_intent != INTENT_GRAB)
 				to_chat(user, "<span class='warning'>You must be on grab intent to upgrade your grab further!</span>")
-				return 0
+				return FALSE
 		user.setGrabState(user.grab_state + 1)
 		switch(user.grab_state)
 			if(GRAB_AGGRESSIVE)
@@ -213,7 +213,7 @@
 				if(!buckled && !density)
 					Move(user.loc)
 		user.set_pull_offsets(src, grab_state)
-		return 1
+		return TRUE
 
 
 /mob/living/attack_slime(mob/living/simple_animal/slime/M)
@@ -425,7 +425,7 @@
 
 //called when the mob receives a loud bang
 /mob/living/proc/soundbang_act()
-	return 0
+	return FALSE
 
 //to damage the clothes worn by a mob
 /mob/living/proc/damage_clothes(damage_amount, damage_type = BRUTE, damage_flag = 0, def_zone)

code/modules/mob/living/logout.dm

@@ -2,5 +2,5 @@
 	update_z(null)
 	..()
 	if(!key && mind)	//key and mind have become separated.
-		mind.active = 0	//This is to stop say, a mind.transfer_to call on a corpse causing a ghost to re-enter its body.
+		mind.active = FALSE	//This is to stop say, a mind.transfer_to call on a corpse causing a ghost to re-enter its body.
 	med_hud_set_status()

code/modules/mob/living/silicon/ai/ai.dm

@@ -789,7 +789,7 @@
 		to_chat(user, "<span class='boldnotice'>Transfer successful</span>: [name] ([rand(1000,9999)].exe) removed from host terminal and stored within local memory.")
 
 /mob/living/silicon/ai/can_buckle()
-	return 0
+	return FALSE
 
 /mob/living/silicon/ai/incapacitated(ignore_restraints = FALSE, ignore_grab = FALSE, ignore_stasis = FALSE)
 	if(aiRestorePowerRoutine)

code/modules/mob/living/silicon/ai/ai_defense.dm

@@ -24,8 +24,8 @@
 	if (stat != DEAD)
 		adjustBruteLoss(60)
 		updatehealth()
-		return 1
-	return 0
+		return TRUE
+	return FALSE
 
 /mob/living/silicon/ai/emp_act(severity)
 	. = ..()

code/modules/mob/living/silicon/ai/ai_say.dm

@@ -148,8 +148,8 @@
 						SEND_SOUND(M, voice)
 		else
 			SEND_SOUND(only_listener, voice)
-		return 1
-	return 0
+		return TRUE
+	return FALSE
 
 #undef VOX_DELAY
 #endif

code/modules/mob/living/silicon/ai/freelook/eye.dm

@@ -114,7 +114,7 @@
 	return TRUE
 
 /mob/camera/ai_eye/Move()
-	return 0
+	return
 
 /mob/camera/ai_eye/proc/GetViewerClient()
 	if(ai)

code/modules/mob/living/silicon/pai/personality.dm

@@ -12,7 +12,7 @@
 
 /datum/pai_candidate/proc/savefile_save(mob/user)
 	if(IsGuestKey(user.key))
-		return 0
+		return FALSE
 
 	var/savefile/F = new /savefile(src.savefile_path(user))
 
@@ -24,7 +24,7 @@
 
 	WRITE_FILE(F["version"], 1)
 
-	return 1
+	return TRUE
 
 // loads the savefile corresponding to the mob's ckey
 // if silent=true, report incompatible savefiles

code/modules/mob/living/silicon/robot/laws.dm

@@ -11,7 +11,7 @@
 		return
 	..()
 
-/mob/living/silicon/robot/show_laws(everyone = 0)
+/mob/living/silicon/robot/show_laws(everyone = FALSE)
 	laws_sanity_check()
 	var/who
 
@@ -29,7 +29,7 @@
 				to_chat(src, "<b>Laws synced with AI, be sure to note any changes.</b>")
 		else
 			to_chat(src, "<b>No AI selected to sync laws with, disabling lawsync protocol.</b>")
-			lawupdate = 0
+			lawupdate = FALSE
 
 	to_chat(who, "<b>Obey these laws:</b>")
 	laws.show_laws(who)

code/modules/mob/living/silicon/robot/life.dm

@@ -1,5 +1,4 @@
 /mob/living/silicon/robot/Life()
-	set invisibility = 0
 	if (src.notransform)
 		return
 
@@ -11,7 +10,7 @@
 	if(stat != DEAD)
 		if(low_power_mode)
 			if(cell && cell.charge)
-				low_power_mode = 0
+				low_power_mode = FALSE
 				update_headlamp()
 		else if(stat == CONSCIOUS)
 			use_power()
@@ -24,7 +23,7 @@
 		cell.use(amt) //Usage table: 1/tick if off/lowest setting, 4 = 4/tick, 6 = 8/tick, 8 = 12/tick, 10 = 16/tick
 	else
 		uneq_all()
-		low_power_mode = 1
+		low_power_mode = TRUE
 		update_headlamp()
 	diag_hud_set_borgcell()
 

code/modules/mob/living/silicon/robot/robot.dm

@@ -53,10 +53,10 @@
 	var/mob/living/silicon/ai/connected_ai = null
 	var/obj/item/stock_parts/cell/cell = /obj/item/stock_parts/cell/high ///If this is a path, this gets created as an object in Initialize.
 
-	var/opened = 0
+	var/opened = FALSE
 	var/emagged = FALSE
 	var/emag_cooldown = 0
-	var/wiresexposed = 0
+	var/wiresexposed = FALSE
 
 	/// Random serial number generated for each cyborg upon its initialization
 	var/ident = 0
@@ -74,7 +74,7 @@
 	var/datum/effect_system/spark_spread/spark_system // So they can initialize sparks whenever/N
 
 	var/lawupdate = 1 //Cyborgs will sync their laws with their AI by default
-	var/scrambledcodes = 0 // Used to determine if a borg shows up on the robotics console.  Setting to one hides them.
+	var/scrambledcodes = FALSE // Used to determine if a borg shows up on the robotics console.  Setting to TRUE hides them.
 	var/lockcharge //Boolean of whether the borg is locked down or not
 
 	var/toner = 0
@@ -94,7 +94,7 @@
 	var/hat_offset = -3
 
 	can_buckle = TRUE
-	buckle_lying = FALSE
+	buckle_lying = 0
 	var/static/list/can_ride_typecache = typecacheof(/mob/living/carbon/human)
 
 /mob/living/silicon/robot/get_cell()
@@ -324,13 +324,13 @@
 		. += "Master AI: [connected_ai.name]"
 
 /mob/living/silicon/robot/restrained(ignore_grab)
-	. = 0
+	return
 
 /mob/living/silicon/robot/triggerAlarm(class, area/A, O, obj/alarmsource)
 	if(alarmsource.z != z)
 		return
 	if(stat == DEAD)
-		return 1
+		return TRUE
 	var/list/L = alarms[class]
 	for (var/I in L)
 		if (I == A.name)
@@ -338,7 +338,7 @@
 			var/list/sources = alarm[3]
 			if (!(alarmsource in sources))
 				sources += alarmsource
-			return 1
+			return TRUE
 	var/obj/machinery/camera/C = null
 	var/list/CL = null
 	if (O && istype(O, /list))
@@ -349,11 +349,11 @@
 		C = O
 	L[A.name] = list(A, (C) ? C : O, list(alarmsource))
 	queueAlarm(text("--- [class] alarm detected in [A.name]!"), class)
-	return 1
+	return TRUE
 
 /mob/living/silicon/robot/cancelAlarm(class, area/A, obj/origin)
 	var/list/L = alarms[class]
-	var/cleared = 0
+	var/cleared = FALSE
 	for (var/I in L)
 		if (I == A.name)
 			var/list/alarm = L[I]
@@ -361,7 +361,7 @@
 			if (origin in srcs)
 				srcs -= origin
 			if (srcs.len == 0)
-				cleared = 1
+				cleared = TRUE
 				L -= I
 	if (cleared)
 		queueAlarm("--- [class] alarm in [A.name] has been cleared.", class, 0)
@@ -392,36 +392,36 @@
 /mob/living/silicon/robot/proc/allowed(mob/M)
 	//check if it doesn't require any access at all
 	if(check_access(null))
-		return 1
+		return TRUE
 	if(ishuman(M))
 		var/mob/living/carbon/human/H = M
 		//if they are holding or wearing a card that has access, that works
 		if(check_access(H.get_active_held_item()) || check_access(H.wear_id))
-			return 1
+			return TRUE
 	else if(ismonkey(M))
 		var/mob/living/carbon/monkey/george = M
 		//they can only hold things :(
 		if(isitem(george.get_active_held_item()))
 			return check_access(george.get_active_held_item())
-	return 0
+	return FALSE
 
 /mob/living/silicon/robot/proc/check_access(obj/item/card/id/I)
 	if(!istype(req_access, /list)) //something's very wrong
-		return 1
+		return TRUE
 
 	var/list/L = req_access
 	if(!L.len) //no requirements
-		return 1
+		return TRUE
 
 	if(!istype(I, /obj/item/card/id) && isitem(I))
 		I = I.GetID()
 
 	if(!I || !I.access) //not ID or no access
-		return 0
+		return FALSE
 	for(var/req in req_access)
 		if(!(req in I.access)) //doesn't have this access
-			return 0
-	return 1
+			return FALSE
+	return TRUE
 
 /mob/living/silicon/robot/regenerate_icons()
 	return update_icons()
@@ -582,7 +582,7 @@
 		robot_suit.r_leg = null
 		new /obj/item/stack/cable_coil(T, robot_suit.chest.wired)
 		robot_suit.chest.forceMove(T)
-		robot_suit.chest.wired = 0
+		robot_suit.chest.wired = FALSE
 		robot_suit.chest = null
 		robot_suit.l_arm.forceMove(T)
 		robot_suit.l_arm = null
@@ -1049,7 +1049,7 @@
 		else
 			M.visible_message("<span class='boldwarning'>[M] can't climb onto [src] because [M.p_their()] hands are full!</span>")
 		return
-	. = ..(M, force, check_loc)
+	return ..()
 
 /mob/living/silicon/robot/unbuckle_mob(mob/user, force=FALSE)
 	if(iscarbon(user))
@@ -1057,7 +1057,7 @@
 		if(istype(riding_datum))
 			riding_datum.unequip_buckle_inhands(user)
 			riding_datum.restore_position(user)
-	. = ..(user)
+	return ..()
 
 /mob/living/silicon/robot/resist()
 	. = ..()
@@ -1073,7 +1073,7 @@
 	if(connected_ai)
 		connected_ai.connected_robots += src
 		lawsync()
-		lawupdate = 1
+		lawupdate = TRUE
 		return TRUE
 	picturesync()
 	return FALSE

code/modules/mob/living/silicon/robot/robot_defense.dm

@@ -42,14 +42,14 @@ GLOBAL_LIST_INIT(blacklisted_borg_hats, typecacheof(list( //Hats that don't real
 	if(W.tool_behaviour == TOOL_CROWBAR)	// crowbar means open or close the cover
 		if(opened)
 			to_chat(user, "<span class='notice'>You close the cover.</span>")
-			opened = 0
+			opened = FALSE
 			update_icons()
 		else
 			if(locked)
 				to_chat(user, "<span class='warning'>The cover is locked and cannot be opened!</span>")
 			else
 				to_chat(user, "<span class='notice'>You open the cover.</span>")
-				opened = 1
+				opened = TRUE
 				update_icons()
 		return
 
@@ -340,7 +340,7 @@ GLOBAL_LIST_INIT(blacklisted_borg_hats, typecacheof(list( //Hats that don't real
 
 	SetEmagged(1)
 	SetStun(60) //Borgs were getting into trouble because they would attack the emagger before the new laws were shown
-	lawupdate = 0
+	lawupdate = FALSE
 	connected_ai = null
 	message_admins("[ADMIN_LOOKUPFLW(user)] emagged cyborg [ADMIN_LOOKUPFLW(src)].  Laws overridden.")
 	log_game("[key_name(user)] emagged cyborg [key_name(src)].  Laws overridden.")

code/modules/mob/living/silicon/silicon.dm

@@ -371,12 +371,12 @@
 	to_chat(src, "<span class='notice'>Automatic announcements [Autochan == "None" ? "will not use the radio." : "set to [Autochan]."]</span>")
 
 /mob/living/silicon/put_in_hand_check() // This check is for borgs being able to receive items, not put them in others' hands.
-	return 0
+	return FALSE
 
 // The src mob is trying to place an item on someone
 // But the src mob is a silicon!!  Disable.
 /mob/living/silicon/stripPanelEquip(obj/item/what, mob/who, slot)
-	return 0
+	return FALSE
 
 
 /mob/living/silicon/assess_threat(judgement_criteria, lasercolor = "", datum/callback/weaponcheck=null) //Secbots won't hunt silicon units

code/modules/mob/living/silicon/silicon_say.dm

@@ -24,15 +24,15 @@
 			to_chat(M, "<span class='binarysay'>[link] [rendered]</span>")
 
 /mob/living/silicon/binarycheck()
-	return 1
+	return TRUE
 
 /mob/living/silicon/lingcheck()
-	return 0 //Borged or AI'd lings can't speak on the ling channel.
+	return FALSE //Borged or AI'd lings can't speak on the ling channel.
 
 /mob/living/silicon/radio(message, list/message_mods = list(), list/spans, language)
 	. = ..()
-	if(. != 0)
-		return .
+	if(!.)
+		return
 	if(message_mods[MODE_HEADSET])
 		if(radio)
 			radio.talk_into(src, message, , spans, language, message_mods)
@@ -42,4 +42,4 @@
 			radio.talk_into(src, message, message_mods[RADIO_EXTENSION], spans, language, message_mods)
 			return ITALICS | REDUCE_RANGE
 
-	return 0
+	return FALSE

code/modules/mob/living/simple_animal/bot/bot.dm

@@ -404,7 +404,7 @@
 
 /mob/living/simple_animal/bot/radio(message, list/message_mods = list(), list/spans, language)
 	. = ..()
-	if(. != 0)
+	if(!.)
 		return
 
 	if(message_mods[MODE_HEADSET])
@@ -693,7 +693,7 @@ Pass a positive integer as an argument to override a bot's default speed.
 		patrol_target = nearest_beacon_loc
 		destination = next_destination
 	else
-		auto_patrol = 0
+		auto_patrol = FALSE
 		mode = BOT_IDLE
 		speak("Disengaging patrol mode.")
 
@@ -732,11 +732,11 @@ Pass a positive integer as an argument to override a bot's default speed.
 	// process control input
 	switch(command)
 		if("patroloff")
-			bot_reset() //HOLD IT!!
-			auto_patrol = 0
+			bot_reset() //HOLD IT!!	//OBJECTION!!
+			auto_patrol = FALSE
 
 		if("patrolon")
-			auto_patrol = 1
+			auto_patrol = TRUE
 
 		if("summon")
 			bot_reset()
@@ -751,7 +751,7 @@ Pass a positive integer as an argument to override a bot's default speed.
 			ejectpairemote(user)
 	return
 
-//
+
 /mob/living/simple_animal/bot/proc/bot_control_message(command, user)
 	switch(command)
 		if("patroloff")
@@ -831,7 +831,7 @@ Pass a positive integer as an argument to override a bot's default speed.
 	dat = get_controls(M)
 	var/datum/browser/popup = new(M,window_id,window_name,350,600)
 	popup.set_content(dat)
-	popup.open(use_onclose = 0)
+	popup.open(use_onclose = FALSE)
 	onclose(M,window_id,ref=src)
 	return
 

code/modules/mob/living/simple_animal/bot/construction.dm

@@ -287,7 +287,7 @@
 				to_chat(user, "<span class='notice'>You add the [I] to [src]! Honk!</span>")
 				var/mob/living/simple_animal/bot/honkbot/S = new(drop_location())
 				S.name = created_name
-				S.spam_flag = TRUE // only long enough to hear the first ping.
+				S.limiting_spam = TRUE // only long enough to hear the first ping.
 				addtimer(CALLBACK (S, .mob/living/simple_animal/bot/honkbot/proc/react_ping), 5)
 				S.bikehorn = I.type
 				qdel(I)

code/modules/mob/living/simple_animal/bot/honkbot.dm

@@ -21,7 +21,7 @@
 	path_image_color = "#FF69B4"
 
 	var/honksound = 'sound/items/bikehorn.ogg' //customizable sound
-	var/spam_flag = FALSE
+	var/limiting_spam = FALSE
 	var/cooldowntime = 30
 	var/cooldowntimehorn = 10
 	var/mob/living/carbon/target
@@ -45,8 +45,8 @@
 	access_card.access += J.get_access()
 	prev_access = access_card.access
 
-/mob/living/simple_animal/bot/honkbot/proc/spam_flag_false() //used for addtimer
-	spam_flag = FALSE
+/mob/living/simple_animal/bot/honkbot/proc/limiting_spam_false() //used for addtimer
+	limiting_spam = FALSE
 
 /mob/living/simple_animal/bot/honkbot/proc/sensor_blink()
 	icon_state = "honkbot-c"
@@ -55,9 +55,9 @@
 //honkbots react with sounds.
 /mob/living/simple_animal/bot/honkbot/proc/react_ping()
 	playsound(src, 'sound/machines/ping.ogg', 50, TRUE, -1) //the first sound upon creation!
-	spam_flag = TRUE
+	limiting_spam = TRUE
 	sensor_blink()
-	addtimer(CALLBACK(src, .proc/spam_flag_false), 18) // calibrates before starting the honk
+	addtimer(CALLBACK(src, .proc/limiting_spam_false), 18) // calibrates before starting the honk
 
 /mob/living/simple_animal/bot/honkbot/proc/react_buzz()
 	playsound(src, 'sound/machines/buzz-sigh.ogg', 50, TRUE, -1)
@@ -70,7 +70,7 @@
 	anchored = FALSE
 	walk_to(src,0)
 	last_found = world.time
-	spam_flag = FALSE
+	limiting_spam = FALSE
 
 /mob/living/simple_animal/bot/honkbot/set_custom_texts()
 
@@ -151,7 +151,7 @@ Maintenance panel panel is [open ? "opened" : "closed"]"},
 			if(!C.IsParalyzed() || arrest_type)
 				stun_attack(A)
 		..()
-	else if (!spam_flag) //honking at the ground
+	else if (!limiting_spam) //honking at the ground
 		bike_horn(A)
 
 
@@ -166,31 +166,31 @@ Maintenance panel panel is [open ? "opened" : "closed"]"},
 
 /mob/living/simple_animal/bot/honkbot/proc/bike_horn() //use bike_horn
 	if (emagged <= 1)
-		if (!spam_flag)
+		if (!limiting_spam)
 			playsound(src, honksound, 50, TRUE, -1)
-			spam_flag = TRUE //prevent spam
+			limiting_spam = TRUE //prevent spam
 			sensor_blink()
-			addtimer(CALLBACK(src, .proc/spam_flag_false), cooldowntimehorn)
+			addtimer(CALLBACK(src, .proc/limiting_spam_false), cooldowntimehorn)
 	else if (emagged == 2) //emagged honkbots will spam short and memorable sounds.
-		if (!spam_flag)
+		if (!limiting_spam)
 			playsound(src, "honkbot_e", 50, FALSE)
-			spam_flag = TRUE // prevent spam
+			limiting_spam = TRUE // prevent spam
 			icon_state = "honkbot-e"
 			addtimer(CALLBACK(src, /atom/.proc/update_icon), 30, TIMER_OVERRIDE|TIMER_UNIQUE)
-		addtimer(CALLBACK(src, .proc/spam_flag_false), cooldowntimehorn)
+		addtimer(CALLBACK(src, .proc/limiting_spam_false), cooldowntimehorn)
 
 /mob/living/simple_animal/bot/honkbot/proc/honk_attack(mob/living/carbon/C) // horn attack
-	if(!spam_flag)
+	if(!limiting_spam)
 		playsound(loc, honksound, 50, TRUE, -1)
-		spam_flag = TRUE // prevent spam
+		limiting_spam = TRUE // prevent spam
 		sensor_blink()
-		addtimer(CALLBACK(src, .proc/spam_flag_false), cooldowntimehorn)
+		addtimer(CALLBACK(src, .proc/limiting_spam_false), cooldowntimehorn)
 
 /mob/living/simple_animal/bot/honkbot/proc/stun_attack(mob/living/carbon/C) // airhorn stun
-	if(!spam_flag)
+	if(!limiting_spam)
 		playsound(src, 'sound/items/AirHorn.ogg', 100, TRUE, -1) //HEEEEEEEEEEEENK!!
 		sensor_blink()
-	if(spam_flag == 0)
+	if(limiting_spam == 0)
 		if(ishuman(C))
 			C.stuttering = 20
 			var/obj/item/organ/ears/ears = C.getorganslot(ORGAN_SLOT_EARS)
@@ -200,7 +200,7 @@ Maintenance panel panel is [open ? "opened" : "closed"]"},
 			C.Paralyze(60)
 			var/mob/living/carbon/human/H = C
 			if(client) //prevent spam from players..
-				spam_flag = TRUE
+				limiting_spam = TRUE
 			if (emagged <= 1) //HONK once, then leave
 				var/judgement_criteria = judgement_criteria()
 				threatlevel = H.assess_threat(judgement_criteria)
@@ -208,7 +208,7 @@ Maintenance panel panel is [open ? "opened" : "closed"]"},
 				target = oldtarget_name
 			else // you really don't want to hit an emagged honkbot
 				threatlevel = 6 // will never let you go
-			addtimer(CALLBACK(src, .proc/spam_flag_false), cooldowntime)
+			addtimer(CALLBACK(src, .proc/limiting_spam_false), cooldowntime)
 
 			log_combat(src,C,"honked")
 
@@ -217,7 +217,7 @@ Maintenance panel panel is [open ? "opened" : "closed"]"},
 		else
 			C.stuttering = 20
 			C.Paralyze(80)
-			addtimer(CALLBACK(src, .proc/spam_flag_false), cooldowntime)
+			addtimer(CALLBACK(src, .proc/limiting_spam_false), cooldowntime)
 
 
 /mob/living/simple_animal/bot/honkbot/handle_automated_action()
@@ -303,14 +303,14 @@ Maintenance panel panel is [open ? "opened" : "closed"]"},
 
 		if(threatlevel <= 3)
 			if(C in view(4,src)) //keep the range short for patrolling
-				if(!spam_flag)
+				if(!limiting_spam)
 					bike_horn()
 
 		else if(threatlevel >= 10)
 			bike_horn() //just spam the shit outta this
 
 		else if(threatlevel >= 4)
-			if(!spam_flag)
+			if(!limiting_spam)
 				target = C
 				oldtarget_name = C.name
 				bike_horn()

code/modules/mob/living/simple_animal/constructs.dm

@@ -281,17 +281,15 @@
 	if(isconstruct(A)) //is it a construct?
 		var/mob/living/simple_animal/hostile/construct/C = A
 		if(C.health < C.maxHealth) //is it hurt? let's go heal it if it is
-			return 1
-		else
-			return 0
-	else
-		return 0
+			return TRUE
+	return FALSE
 
 /mob/living/simple_animal/hostile/construct/artificer/CanAttack(atom/the_target)
 	if(see_invisible < the_target.invisibility)//Target's invisible to us, forget it
-		return 0
+		return FALSE
 	if(Found(the_target) || ..()) //If we Found it or Can_Attack it normally, we Can_Attack it as long as it wasn't invisible
-		return 1 //as a note this shouldn't be added to base hostile mobs because it'll mess up retaliate hostile mobs
+		return TRUE //as a note this shouldn't be added to base hostile mobs because it'll mess up retaliate hostile mobs
+	return FALSE
 
 /mob/living/simple_animal/hostile/construct/artificer/MoveToTarget(list/possible_targets)
 	..()
@@ -299,7 +297,7 @@
 		var/mob/living/L = target
 		if(isconstruct(L) && L.health >= L.maxHealth) //is this target an unhurt construct? stop trying to heal it
 			LoseTarget()
-			return 0
+			return
 		if(L.health <= melee_damage_lower+melee_damage_upper) //ey bucko you're hurt as fuck let's go hit you
 			retreat_distance = null
 			minimum_distance = 1

code/modules/mob/living/simple_animal/friendly/dog.dm

@@ -38,16 +38,16 @@
 			turns_since_scan = 0
 			if((movement_target) && !(isturf(movement_target.loc) || ishuman(movement_target.loc) ))
 				movement_target = null
-				stop_automated_movement = 0
+				stop_automated_movement = FALSE
 			if( !movement_target || !(movement_target.loc in oview(src, 3)) )
 				movement_target = null
-				stop_automated_movement = 0
+				stop_automated_movement = FALSE
 				for(var/obj/item/reagent_containers/food/snacks/S in oview(src,3))
 					if(isturf(S.loc) || ishuman(S.loc))
 						movement_target = S
 						break
 			if(movement_target)
-				stop_automated_movement = 1
+				stop_automated_movement = TRUE
 				step_to(src,movement_target,1)
 				sleep(3)
 				step_to(src,movement_target,1)
@@ -359,7 +359,7 @@
 
 	if(user && !user.temporarilyRemoveItemFromInventory(item_to_add))
 		to_chat(user, "<span class='warning'>\The [item_to_add] is stuck to your hand, you cannot put it on [src]'s head!</span>")
-		return 0
+		return
 
 	var/valid = FALSE
 	if(ispath(item_to_add.dog_fashion, /datum/dog_fashion/head))

code/modules/mob/living/simple_animal/friendly/drone/_drone.dm

@@ -308,7 +308,7 @@
 		return ..()
 
 /mob/living/simple_animal/drone/mob_negates_gravity()
-	return 1
+	return TRUE
 
 /mob/living/simple_animal/drone/mob_has_gravity()
 	return ..() || mob_negates_gravity()
@@ -318,7 +318,7 @@
 
 /mob/living/simple_animal/drone/bee_friendly()
 	// Why would bees pay attention to drones?
-	return 1
+	return TRUE
 
 /mob/living/simple_animal/drone/electrocute_act(shock_damage, source, siemens_coeff, flags = NONE)
-	return 0 //So they don't die trying to fix wiring
+	return FALSE //So they don't die trying to fix wiring

code/modules/mob/living/simple_animal/friendly/farm_animals.dm

@@ -170,7 +170,7 @@
 /mob/living/simple_animal/cow/tamed()
 	. = ..()
 	can_buckle = TRUE
-	buckle_lying = FALSE
+	buckle_lying = 0
 	var/datum/component/riding/D = LoadComponent(/datum/component/riding)
 	D.set_riding_offsets(RIDING_OFFSET_ALL, list(TEXT_NORTH = list(0, 8), TEXT_SOUTH = list(0, 8), TEXT_EAST = list(-2, 8), TEXT_WEST = list(2, 8)))
 	D.set_vehicle_dir_layer(SOUTH, ABOVE_MOB_LAYER)

code/modules/mob/living/simple_animal/hostile/bear.dm

@@ -60,7 +60,7 @@
 	. = ..()
 	if(!rideable && mind)
 		can_buckle = TRUE
-		buckle_lying = FALSE
+		buckle_lying = 0
 		var/datum/component/riding/D = LoadComponent(/datum/component/riding)
 		D.set_riding_offsets(RIDING_OFFSET_ALL, list(TEXT_NORTH = list(1, 8), TEXT_SOUTH = list(1, 8), TEXT_EAST = list(-3, 6), TEXT_WEST = list(3, 6)))
 		D.set_vehicle_dir_layer(SOUTH, ABOVE_MOB_LAYER)

code/modules/mob/living/simple_animal/hostile/bosses/boss.dm

@@ -54,21 +54,22 @@
 
 /datum/action/boss/Trigger()
 	. = ..()
-	if(.)
-		if(!istype(boss, boss_type))
-			return 0
-		if(!boss.atb)
-			return 0
-		if(boss.atb.points < boss_cost)
-			return 0
-		if(!boss.client)
-			if(needs_target && !boss.target)
-				return 0
-		if(boss)
-			if(say_when_triggered)
-				boss.say(say_when_triggered, forced = "boss action")
-			if(!boss.atb.spend(boss_cost))
-				return 0
+	if(!.)
+		return
+	if(!istype(boss, boss_type))
+		return
+	if(!boss.atb)
+		return
+	if(boss.atb.points < boss_cost)
+		return
+	if(!boss.client)
+		if(needs_target && !boss.target)
+			return
+	if(boss)
+		if(say_when_triggered)
+			boss.say(say_when_triggered, forced = "boss action")
+		if(!boss.atb.spend(boss_cost))
+			return
 
 //Example:
 /*

code/modules/mob/living/simple_animal/hostile/carp.dm

@@ -146,7 +146,7 @@
 /mob/living/simple_animal/hostile/carp/tamed()
 	. = ..()
 	can_buckle = TRUE
-	buckle_lying = FALSE
+	buckle_lying = 0
 	var/datum/component/riding/D = LoadComponent(/datum/component/riding)
 	D.set_riding_offsets(RIDING_OFFSET_ALL, list(TEXT_NORTH = list(0, 13), TEXT_SOUTH = list(0, 15), TEXT_EAST = list(-2, 12), TEXT_WEST = list(2, 12)))
 	D.set_vehicle_dir_layer(SOUTH, ABOVE_MOB_LAYER)
@@ -218,7 +218,7 @@
 		heal_overall_damage(4)
 	if(!rideable && src.mind)
 		can_buckle = TRUE
-		buckle_lying = FALSE
+		buckle_lying = 0
 		var/datum/component/riding/D = LoadComponent(/datum/component/riding)
 		D.set_riding_offsets(RIDING_OFFSET_ALL, list(TEXT_NORTH = list(1, 8), TEXT_SOUTH = list(1, 8), TEXT_EAST = list(-3, 6), TEXT_WEST = list(3, 6)))
 		D.set_vehicle_dir_offsets(SOUTH, pixel_x, 0)

code/modules/mob/living/simple_animal/hostile/giant_spider.dm

@@ -90,17 +90,17 @@
 
 /mob/living/simple_animal/hostile/poison/giant_spider/proc/humanize_spider(mob/user)
 	if(key || !playable_spider || stat)//Someone is in it, it's dead, or the fun police are shutting it down
-		return 0
+		return FALSE
 	var/spider_ask = alert("Become a spider?", "Are you australian?", "Yes", "No")
 	if(spider_ask == "No" || !src || QDELETED(src))
-		return 1
+		return TRUE
 	if(key)
 		to_chat(user, "<span class='warning'>Someone else already took this spider!</span>")
-		return 1
+		return TRUE
 	key = user.key
 	if(directive)
 		log_game("[key_name(src)] took control of [name] with the objective: '[directive]'.")
-	return 1
+	return TRUE
 
 //nursemaids - these create webs and eggs
 /mob/living/simple_animal/hostile/poison/giant_spider/nurse
@@ -244,15 +244,16 @@
 	gold_core_spawnable = NO_SPAWN
 
 /mob/living/simple_animal/hostile/poison/giant_spider/handle_automated_action()
-	if(!..()) //AIStatus is off
-		return 0
+	. = ..()
+	if(!.)//AIStatus is off
+		return FALSE
 	if(AIStatus == AI_IDLE)
 		//1% chance to skitter madly away
 		if(!busy && prob(1))
 			stop_automated_movement = TRUE
 			Goto(pick(urange(20, src, 1)), move_to_delay)
 			addtimer(CALLBACK(src, .proc/do_action), 5 SECONDS)
-		return 1
+		return TRUE
 
 /mob/living/simple_animal/hostile/poison/giant_spider/proc/do_action()
 	stop_automated_movement = FALSE
@@ -449,13 +450,14 @@
 	button_icon_state = "lay_eggs"
 
 /datum/action/innate/spider/lay_eggs/IsAvailable()
-	if(..())
-		if(!istype(owner, /mob/living/simple_animal/hostile/poison/giant_spider/nurse))
-			return 0
-		var/mob/living/simple_animal/hostile/poison/giant_spider/nurse/S = owner
-		if(S.fed)
-			return 1
-		return 0
+	. = ..()
+	if(!.)
+		return
+	if(!istype(owner, /mob/living/simple_animal/hostile/poison/giant_spider/nurse))
+		return FALSE
+	var/mob/living/simple_animal/hostile/poison/giant_spider/nurse/S = owner
+	if(S.fed)
+		return TRUE
 
 /datum/action/innate/spider/lay_eggs/Activate()
 	if(!istype(owner, /mob/living/simple_animal/hostile/poison/giant_spider/nurse))

code/modules/mob/living/simple_animal/hostile/hostile.dm

@@ -68,11 +68,10 @@
 	. = ..()
 	if(!.) //dead
 		walk(src, 0) //stops walking
-		return 0
 
 /mob/living/simple_animal/hostile/handle_automated_action()
 	if(AIStatus == AI_OFF)
-		return 0
+		return FALSE
 	var/list/possible_targets = ListTargets() //we look around for potential targets and make it a list for later use.
 
 	if(environment_smash)

code/modules/mob/living/simple_animal/hostile/megafauna/drake.dm

@@ -221,7 +221,7 @@ Difficulty: Medium
 		if(!any_attack)
 			for(var/obj/effect/temp_visual/drakewall/D in drakewalls)
 				qdel(D)
-			return 0 // nothing to attack in the arena time for enraged attack if we still have a target
+			return FALSE // nothing to attack in the arena time for enraged attack if we still have a target
 		for(var/turf/T in turfs)
 			if(!(T in empty))
 				new /obj/effect/temp_visual/lava_warning(T)
@@ -229,7 +229,7 @@ Difficulty: Medium
 				new /obj/effect/temp_visual/lava_safe(T)
 		amount--
 		SLEEP_CHECK_DEATH(24)
-	return 1 // attack finished completely
+	return TRUE // attack finished completely
 
 /mob/living/simple_animal/hostile/megafauna/dragon/proc/arena_escape_enrage() // you ran somehow / teleported away from my arena attack now i'm mad fucker
 	SLEEP_CHECK_DEATH(0)

code/modules/mob/living/simple_animal/hostile/mimic.dm

@@ -135,8 +135,8 @@ GLOBAL_LIST_INIT(protected_objects, list(/obj/structure/table, /obj/structure/ca
 
 /mob/living/simple_animal/hostile/mimic/copy/proc/CheckObject(obj/O)
 	if((isitem(O) || isstructure(O)) && !is_type_in_list(O, GLOB.protected_objects))
-		return 1
-	return 0
+		return TRUE
+	return FALSE
 
 /mob/living/simple_animal/hostile/mimic/copy/proc/CopyObject(obj/O, mob/living/user, destroy_original = 0)
 	if(destroy_original || CheckObject(O))

code/modules/mob/living/simple_animal/hostile/mining_mobs/goliath.dm

@@ -114,7 +114,7 @@
 			qdel(O)
 			saddled = TRUE
 			can_buckle = TRUE
-			buckle_lying = FALSE
+			buckle_lying = 0
 			add_overlay("goliath_saddled")
 			var/datum/component/riding/D = LoadComponent(/datum/component/riding)
 			D.set_riding_offsets(RIDING_OFFSET_ALL, list(TEXT_NORTH = list(0, 8), TEXT_SOUTH = list(0, 8), TEXT_EAST = list(-2, 8), TEXT_WEST = list(2, 8)))

code/modules/mob/living/simple_animal/hostile/retaliate/retaliate.dm

@@ -39,7 +39,6 @@
 	for(var/mob/living/simple_animal/hostile/retaliate/H in around)
 		if(faction_check_mob(H) && !attack_same && !H.attack_same)
 			H.enemies |= enemies
-	return 0
 
 /mob/living/simple_animal/hostile/retaliate/adjustHealth(amount, updating_health = TRUE, forced = FALSE)
 	. = ..()

code/modules/mob/living/simple_animal/hostile/statue.dm

@@ -79,7 +79,7 @@
 	if(can_be_seen(NewLoc))
 		if(client)
 			to_chat(src, "<span class='warning'>You cannot move, there are eyes on you!</span>")
-		return 0
+		return
 	return ..()
 
 /mob/living/simple_animal/hostile/statue/Life()
@@ -143,7 +143,7 @@
 // Cannot talk
 
 /mob/living/simple_animal/hostile/statue/say(message, bubble_type, list/spans = list(), sanitize = TRUE, datum/language/language = null, ignore_spam = FALSE, forced = null)
-	return 0
+	return
 
 // Turn to dust when gibbed
 
@@ -157,7 +157,7 @@
 	if(isliving(the_target))
 		var/mob/living/L = the_target
 		if(!L.client && !L.ckey)
-			return 0
+			return FALSE
 	return ..()
 
 // Don't attack your creator if there is one

code/modules/mob/living/simple_animal/hostile/vatbeast.dm

@@ -39,7 +39,7 @@
 /mob/living/simple_animal/hostile/vatbeast/tamed()
 	. = ..()
 	can_buckle = TRUE
-	buckle_lying = FALSE
+	buckle_lying = 0
 	var/datum/component/riding/riding = LoadComponent(/datum/component/riding)
 	riding.set_riding_offsets(RIDING_OFFSET_ALL, list(TEXT_NORTH = list(0, 15), TEXT_SOUTH = list(0, 15), TEXT_EAST = list(-10, 15), TEXT_WEST = list(10, 15)))
 	riding.set_vehicle_dir_layer(SOUTH, ABOVE_MOB_LAYER)

code/modules/mob/living/simple_animal/parrot.dm

@@ -159,8 +159,8 @@
 
 /mob/living/simple_animal/parrot/radio(message, list/message_mods = list(), list/spans, language) //literally copied from human/radio(), but there's no other way to do this. at least it's better than it used to be.
 	. = ..()
-	if(. != 0)
-		return .
+	if(!.)
+		return
 
 	if(message_mods[MODE_HEADSET])
 		if(ears)
@@ -175,7 +175,7 @@
 			ears.talk_into(src, message, message_mods[RADIO_EXTENSION], spans, language, message_mods)
 			return ITALICS | REDUCE_RANGE
 
-	return 0
+	return FALSE
 
 /*
  * Inventory
@@ -605,12 +605,12 @@
 				parrot_state = PARROT_WANDER
 				parrot_stuck = 0
 				parrot_lastmove = null
-				return 1
+				return TRUE
 		else
 			parrot_lastmove = null
 	else
 		parrot_lastmove = src.loc
-	return 0
+	return FALSE
 
 /mob/living/simple_animal/parrot/proc/search_for_item()
 	var/item
@@ -634,8 +634,6 @@
 				continue
 			return item
 
-	return null
-
 /mob/living/simple_animal/parrot/proc/search_for_perch()
 	for(var/obj/O in view(src))
 		for(var/path in desired_perches)

code/modules/mob/living/simple_animal/shade.dm

@@ -44,7 +44,7 @@
 
 /mob/living/simple_animal/shade/canSuicide()
 	if(istype(loc, /obj/item/soulstone)) //do not suicide inside the soulstone
-		return 0
+		return FALSE
 	return ..()
 
 /mob/living/simple_animal/shade/attack_animal(mob/living/simple_animal/M)

code/modules/mob/living/simple_animal/slime/life.dm

@@ -8,7 +8,6 @@
 
 
 /mob/living/simple_animal/slime/Life()
-	set invisibility = 0
 	if (notransform)
 		return
 	if(..())
@@ -614,11 +613,11 @@
 
 /mob/living/simple_animal/slime/proc/will_hunt(hunger = -1) // Check for being stopped from feeding and chasing
 	if (docile)
-		return 0
+		return FALSE
 	if (hunger == 2 || rabid || attacked)
-		return 1
+		return TRUE
 	if (Leader)
-		return 0
+		return FALSE
 	if (holding_still)
-		return 0
-	return 1
+		return FALSE
+	return TRUE

code/modules/mob/living/simple_animal/slime/powers.dm

@@ -12,20 +12,22 @@
 	var/needs_growth = NO_GROWTH_NEEDED
 
 /datum/action/innate/slime/IsAvailable()
-	if(..())
-		var/mob/living/simple_animal/slime/S = owner
-		if(needs_growth == GROWTH_NEEDED)
-			if(S.amount_grown >= SLIME_EVOLUTION_THRESHOLD)
-				return 1
-			return 0
-		return 1
+	. = ..()
+	if(!.)
+		return
+	var/mob/living/simple_animal/slime/S = owner
+	if(needs_growth == GROWTH_NEEDED)
+		if(S.amount_grown >= SLIME_EVOLUTION_THRESHOLD)
+			return TRUE
+		return FALSE
+	return TRUE
 
 /mob/living/simple_animal/slime/verb/Feed()
 	set category = "Slime"
 	set desc = "This will let you feed on any valid creature in the surrounding area. This should also be used to halt the feeding process."
 
 	if(stat)
-		return 0
+		return FALSE
 
 	var/list/choices = list()
 	for(var/mob/living/C in view(1,src))
@@ -34,10 +36,11 @@
 
 	var/mob/living/M = input(src,"Who do you wish to feed on?") in null|sortNames(choices)
 	if(!M)
-		return 0
+		return FALSE
 	if(CanFeedon(M))
 		Feedon(M)
-		return 1
+		return TRUE
+	return FALSE
 
 /datum/action/innate/slime/feed
 	name = "Feed"

code/modules/mob/living/simple_animal/slime/slime.dm

@@ -479,10 +479,10 @@
 	docile = 1
 
 /mob/living/simple_animal/slime/can_unbuckle()
-	return 0
+	return FALSE
 
 /mob/living/simple_animal/slime/can_buckle()
-	return 0
+	return FALSE
 
 /mob/living/simple_animal/slime/get_mob_buckling_height(mob/seat)
 	if(..())

code/modules/mob/mob.dm

@@ -114,10 +114,10 @@
   */
 /mob/proc/Cell()
 	set category = "Admin"
-	set hidden = 1
+	set hidden = TRUE
 
 	if(!loc)
-		return 0
+		return
 
 	var/datum/gas_mixture/environment = loc.return_air()
 
@@ -307,7 +307,7 @@
 
 	if(istype(W))
 		if(equip_to_slot_if_possible(W, slot,0,0,0))
-			return 1
+			return TRUE
 
 	if(!W)
 		// Activate the item
@@ -315,7 +315,7 @@
 		if(istype(I))
 			I.attack_hand(src)
 
-	return 0
+	return FALSE
 
 /**
   * Try to equip an item to a slot on the mob
@@ -374,7 +374,7 @@
   */
 /mob/proc/equip_to_appropriate_slot(obj/item/W, swap=FALSE)
 	if(!istype(W))
-		return 0
+		return FALSE
 	var/slot_priority = W.slot_equipment_priority
 
 	if(!slot_priority)
@@ -391,9 +391,9 @@
 
 	for(var/slot in slot_priority)
 		if(equip_to_slot_if_possible(W, slot, FALSE, TRUE, TRUE, FALSE, FALSE, swap)) //qdel_on_fail = FALSE; disable_warning = TRUE; redraw_mob = TRUE;
-			return 1
+			return TRUE
 
-	return 0
+	return FALSE
 /**
   * Reset the attached clients perspective (viewpoint)
   *
@@ -806,7 +806,7 @@
 
 ///Is the mob muzzled (default false)
 /mob/proc/is_muzzled()
-	return 0
+	return FALSE
 
 /// Adds this list to the output to the stat browser
 /mob/proc/get_status_tab_items()
@@ -1013,11 +1013,11 @@
 
 ///can the mob be buckled to something by default?
 /mob/proc/can_buckle()
-	return 1
+	return TRUE
 
 ///can the mob be unbuckled from something by default?
 /mob/proc/can_unbuckle()
-	return 1
+	return TRUE
 
 ///Can the mob interact() with an atom?
 /mob/proc/can_interact_with(atom/A)
@@ -1077,7 +1077,7 @@
 /mob/proc/fully_replace_character_name(oldname,newname)
 	log_message("[src] name changed from [oldname] to [newname]", LOG_OWNERSHIP)
 	if(!newname)
-		return 0
+		return FALSE
 
 	log_played_names(ckey,newname)
 
@@ -1100,7 +1100,7 @@
 				// Only update if this player is a target
 				if(obj.target && obj.target.current && obj.target.current.real_name == name)
 					obj.update_explanation_text()
-	return 1
+	return TRUE
 
 ///Updates GLOB.data_core records with new name , see mob/living/carbon/human
 /mob/proc/replace_records_name(oldname,newname)

code/modules/mob/mob_helpers.dm

@@ -45,9 +45,9 @@
 /proc/above_neck(zone)
 	var/list/zones = list(BODY_ZONE_HEAD, BODY_ZONE_PRECISE_MOUTH, BODY_ZONE_PRECISE_EYES)
 	if(zones.Find(zone))
-		return 1
+		return TRUE
 	else
-		return 0
+		return FALSE
 
 /**
   * Convert random parts of a passed in message to stars

code/modules/mob/mob_say.dm

@@ -93,7 +93,7 @@
 
 ///Check if the mob has a hivemind channel
 /mob/proc/hivecheck()
-	return 0
+	return FALSE
 
 ///Check if the mob has a ling hivemind
 /mob/proc/lingcheck()

code/modules/mob/transform_procs.dm

@@ -619,34 +619,34 @@
 
 //Bad mobs! - Remember to add a comment explaining what's wrong with the mob
 	if(!MP)
-		return 0	//Sanity, this should never happen.
+		return FALSE	//Sanity, this should never happen.
 
 	if(ispath(MP, /mob/living/simple_animal/hostile/construct))
-		return 0 //Verbs do not appear for players.
+		return FALSE //Verbs do not appear for players.
 
 //Good mobs!
 	if(ispath(MP, /mob/living/simple_animal/pet/cat))
-		return 1
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/pet/dog/corgi))
-		return 1
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/crab))
-		return 1
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/hostile/carp))
-		return 1
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/hostile/mushroom))
-		return 1
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/shade))
-		return 1
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/hostile/killertomato))
-		return 1
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/mouse))
-		return 1 //It is impossible to pull up the player panel for mice (Fixed! - Nodrak)
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/hostile/bear))
-		return 1 //Bears will auto-attack mobs, even if they're player controlled (Fixed! - Nodrak)
+		return TRUE
 	if(ispath(MP, /mob/living/simple_animal/parrot))
-		return 1 //Parrots are no longer unfinished! -Nodrak
+		return TRUE //Parrots are no longer unfinished! -Nodrak
 
 	//Not in here? Must be untested!
-	return 0
+	return FALSE
 
 #undef TRANSFORMATION_DURATION