Changes some 1s and 0s to TRUE and FALSE (#1967)

code/modules/atmospherics/machinery/components/components_base.dm

@@ -4,8 +4,8 @@ On top of that, now people can add component-speciic procs/vars if they want!
 */
 
 /obj/machinery/atmospherics/components
-	var/welded = 0 //Used on pumps and scrubbers
-	var/showpipe = 0
+	var/welded = FALSE //Used on pumps and scrubbers
+	var/showpipe = FALSE
 
 	var/list/datum/pipeline/parents
 	var/list/datum/gas_mixture/airs
@@ -29,7 +29,7 @@ Iconnery
 
 	return img.dir
 
-/obj/machinery/atmospherics/components/proc/icon_addbroken(var/connected = 0)
+/obj/machinery/atmospherics/components/proc/icon_addbroken(var/connected = FALSE)
 	var/unconnected = (~connected) & initialize_directions
 	for(var/direction in GLOB.cardinals)
 		if(unconnected & direction)
@@ -45,14 +45,14 @@ Iconnery
 
 	var/turf/T = loc
 	if(level == 2 || !T.intact)
-		showpipe = 1
+		showpipe = TRUE
 	else
-		showpipe = 0
+		showpipe = FALSE
 
 	if(!showpipe)
 		return //no need to update the pipes if they aren't showing
 
-	var/connected = 0
+	var/connected = FALSE
 
 	for(DEVICE_TYPE_LOOP) //adds intact pieces
 		if(NODE_I)