Bools and returns super-pr (#53221)

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>

code/modules/modular_computers/hardware/hard_drive.dm

@@ -31,43 +31,43 @@
 // Use this proc to add file to the drive. Returns 1 on success and 0 on failure. Contains necessary sanity checks.
 /obj/item/computer_hardware/hard_drive/proc/store_file(datum/computer_file/F)
 	if(!F || !istype(F))
-		return 0
+		return FALSE
 
 	if(!can_store_file(F))
-		return 0
+		return FALSE
 
 	if(!check_functionality())
-		return 0
+		return FALSE
 
 	if(!stored_files)
-		return 0
+		return FALSE
 
 	// This file is already stored. Don't store it again.
 	if(F in stored_files)
-		return 0
+		return FALSE
 
 	F.holder = src
 	stored_files.Add(F)
 	recalculate_size()
-	return 1
+	return TRUE
 
 // Use this proc to remove file from the drive. Returns 1 on success and 0 on failure. Contains necessary sanity checks.
 /obj/item/computer_hardware/hard_drive/proc/remove_file(datum/computer_file/F)
 	if(!F || !istype(F))
-		return 0
+		return FALSE
 
 	if(!stored_files)
-		return 0
+		return FALSE
 
 	if(!check_functionality())
-		return 0
+		return FALSE
 
 	if(F in stored_files)
 		stored_files -= F
 		recalculate_size()
-		return 1
+		return TRUE
 	else
-		return 0
+		return FALSE
 
 // Loops through all stored files and recalculates used_capacity of this drive
 /obj/item/computer_hardware/hard_drive/proc/recalculate_size()
@@ -80,24 +80,24 @@
 // Checks whether file can be stored on the hard drive. We can only store unique files, so this checks whether we wouldn't get a duplicity by adding a file.
 /obj/item/computer_hardware/hard_drive/proc/can_store_file(datum/computer_file/F)
 	if(!F || !istype(F))
-		return 0
+		return FALSE
 
 	if(F in stored_files)
-		return 0
+		return FALSE
 
 	var/name = F.filename + "." + F.filetype
 	for(var/datum/computer_file/file in stored_files)
 		if((file.filename + "." + file.filetype) == name)
-			return 0
+			return FALSE
 
 	// In the unlikely event someone manages to create that many files.
 	// BYOND is acting weird with numbers above 999 in loops (infinite loop prevention)
 	if(stored_files.len >= 999)
-		return 0
+		return FALSE
 	if((used_capacity + F.size) > max_capacity)
-		return 0
+		return FALSE
 	else
-		return 1
+		return TRUE
 
 
 // Tries to find the file by filename. Returns null on failure

code/modules/modular_computers/hardware/portable_disk.dm

@@ -4,7 +4,7 @@
 	power_usage = 10
 	icon_state = "datadisk6"
 	w_class = WEIGHT_CLASS_TINY
-	critical = 0
+	critical = FALSE
 	max_capacity = 16
 	device_type = MC_SDD
 

code/modules/modular_computers/hardware/recharger.dm

@@ -6,8 +6,8 @@
 
 /obj/item/computer_hardware/recharger/proc/use_power(amount, charging=0)
 	if(charging)
-		return 1
-	return 0
+		return TRUE
+	return FALSE
 
 /obj/item/computer_hardware/recharger/process()
 	..()
@@ -34,17 +34,17 @@
 		var/obj/machinery/M = holder.physical
 		if(M.powered())
 			M.use_power(amount)
-			return 1
+			return TRUE
 
 	else
 		var/area/A = get_area(src)
 		if(!istype(A))
-			return 0
+			return FALSE
 
 		if(A.powered(AREA_USAGE_EQUIP))
 			A.use_power(amount, AREA_USAGE_EQUIP)
-			return 1
-	return 0
+			return TRUE
+	return FALSE
 
 /obj/item/computer_hardware/recharger/wired
 	name = "wired power connector"
@@ -56,26 +56,25 @@
 	if(ismachinery(M.physical) && M.physical.anchored)
 		return ..()
 	to_chat(user, "<span class='warning'>\The [src] is incompatible with portable computers!</span>")
-	return 0
+	return FALSE
 
 /obj/item/computer_hardware/recharger/wired/use_power(amount, charging=0)
 	if(ismachinery(holder.physical) && holder.physical.anchored)
 		var/obj/machinery/M = holder.physical
 		var/turf/T = M.loc
 		if(!T || !istype(T))
-			return 0
+			return FALSE
 
 		var/obj/structure/cable/C = T.get_cable_node()
 		if(!C || !C.powernet)
-			return 0
+			return FALSE
 
 		var/power_in_net = C.powernet.avail-C.powernet.load
 
 		if(power_in_net && power_in_net > amount)
 			C.powernet.load += amount
-			return 1
-
-	return 0
+			return TRUE
+	return FALSE