Changes all .len to length() where applicable (#25174)

* Globals work

* Double access works

* All other things

* Revert "All other things"

This reverts commit 6574442eb6.

* More changes that compile and work

* IT WORKS AAAAAA

* Changes even more .len to length()

* Apply suggestions from code review

* Update code/datums/mind.dm

* Update code/__HELPERS/sorts/InsertSort.dm

Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

* Update code/__HELPERS/sanitize_values.dm

Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

---------

Co-authored-by: FunnyMan3595 (Charlie Nolan) <funnyman@google.com>
Co-authored-by: Deniz <66401072+Oyu07@users.noreply.github.com>

code/game/objects/effects/decals/Cleanable/humans.dm

@@ -236,7 +236,7 @@
 
 /obj/effect/decal/cleanable/blood/writing/Initialize(mapload)
 	. = ..()
-	if(random_icon_states.len)
+	if(length(random_icon_states))
 		for(var/obj/effect/decal/cleanable/blood/writing/W in loc)
 			random_icon_states.Remove(W.icon_state)
 		icon_state = pick(random_icon_states)

code/game/objects/effects/decals/cleanable.dm

@@ -56,7 +56,7 @@
 			bloodiness -= add_blood
 			S.bloody_shoes[blood_state] = min(MAX_SHOE_BLOODINESS, S.bloody_shoes[blood_state] + add_blood)
 			S.bloody_shoes[BLOOD_BASE_ALPHA] = BLOODY_FOOTPRINT_BASE_ALPHA * (alpha/255)
-			if(blood_DNA && blood_DNA.len)
+			if(blood_DNA && length(blood_DNA))
 				S.add_blood(H.blood_DNA, basecolor)
 			S.blood_state = blood_state
 			S.blood_color = basecolor

code/game/objects/effects/glowshroom.dm

@@ -91,7 +91,7 @@
 		if(direction & i)
 			dirList += i
 
-	if(dirList.len)
+	if(length(dirList))
 		var/newDir = pick(dirList)
 		if(newDir == 16)
 			floor = 1

code/game/objects/effects/landmarks.dm

@@ -416,7 +416,7 @@ INITIALIZE_IMMEDIATE(/obj/effect/landmark/newplayer_start) //Without this you sp
 /obj/effect/landmark/costume/random/Initialize(mapload) //costume spawner, selects a random subclass and disappears
 	. = ..()
 	var/list/options = (typesof(/obj/effect/landmark/costume) - /obj/effect/landmark/costume/random)
-	var/PICK= options[rand(1,options.len)]
+	var/PICK= options[rand(1,length(options))]
 	new PICK(src.loc)
 	return INITIALIZE_HINT_QDEL
 
@@ -580,7 +580,7 @@ INITIALIZE_IMMEDIATE(/obj/effect/landmark/newplayer_start) //Without this you sp
 	var/datum/map_template/ruin/ruin_template
 
 /obj/effect/landmark/ruin/New(loc, my_ruin_template)
-	name = "ruin_[GLOB.ruin_landmarks.len + 1]"
+	name = "ruin_[length(GLOB.ruin_landmarks) + 1]"
 	..(loc)
 	ruin_template = my_ruin_template
 	GLOB.ruin_landmarks |= src

code/game/objects/effects/spiders.dm

@@ -132,7 +132,7 @@
 			var/list/vents = list()
 			for(var/obj/machinery/atmospherics/unary/vent_pump/temp_vent in entry_vent.parent.other_atmosmch)
 				vents.Add(temp_vent)
-			if(!vents.len)
+			if(!length(vents))
 				entry_vent = null
 				return
 			var/obj/machinery/atmospherics/unary/vent_pump/exit_vent = pick(vents)