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/modules/paperwork/folders.dm

@@ -31,7 +31,7 @@
 
 /obj/item/folder/update_overlays()
 	. = ..()
-	if(contents.len)
+	if(length(contents))
 		. += "folder_paper"
 
 /obj/item/folder/attackby(obj/item/W as obj, mob/user as mob, params)

code/modules/paperwork/paperbin.dm

@@ -69,8 +69,8 @@
 			update_icon()
 
 		var/obj/item/paper/P
-		if(papers.len > 0)	//If there's any custom paper on the stack, use that instead of creating a new paper.
-			P = papers[papers.len]
+		if(length(papers) > 0)	//If there's any custom paper on the stack, use that instead of creating a new paper.
+			P = papers[length(papers)]
 			papers.Remove(P)
 		else
 			if(letterhead_type && alert("Choose a style", null,"Letterhead","Blank")=="Letterhead")
@@ -133,8 +133,8 @@
 			update_icon()
 
 		var/obj/item/paper/carbon/P
-		if(papers.len > 0)	//If there's any custom paper on the stack, use that instead of creating a new paper.
-			P = papers[papers.len]
+		if(length(papers) > 0)	//If there's any custom paper on the stack, use that instead of creating a new paper.
+			P = papers[length(papers)]
 			papers.Remove(P)
 		else
 			P = new /obj/item/paper/carbon

code/modules/paperwork/photocopier.dm

@@ -87,8 +87,8 @@
 	c.offset_y = copy.offset_y
 	var/list/temp_overlays = copy.stamp_overlays       //Iterates through stamps
 	var/image/img                                //and puts a matching
-	for(var/j = 1, j <= temp_overlays.len, j++) //gray overlay onto the copy
-		if(copy.ico.len)
+	for(var/j = 1, j <= length(temp_overlays), j++) //gray overlay onto the copy
+		if(length(copy.ico))
 			if(findtext(copy.ico[j], "cap") || findtext(copy.ico[j], "cent") || findtext(copy.ico[j], "rep"))
 				img = image('icons/obj/bureaucracy.dmi', "paper_stamp-circle")
 			else if(findtext(copy.ico[j], "deny"))

code/modules/paperwork/photography.dm

@@ -285,7 +285,7 @@ GLOBAL_LIST_INIT(SpookyGhosts, list("ghost","shade","shade2","ghost-narsie","hor
 					continue
 			else//not invisable, not a spookyghost add it.
 				var/disguised = null
-				if(user.viewing_alternate_appearances && user.viewing_alternate_appearances.len && ishuman(A) && A.alternate_appearances && A.alternate_appearances.len) //This whole thing and the stuff below just checks if the atom is a Solid Snake cosplayer.
+				if(user.viewing_alternate_appearances && length(user.viewing_alternate_appearances) && ishuman(A) && A.alternate_appearances && length(A.alternate_appearances)) //This whole thing and the stuff below just checks if the atom is a Solid Snake cosplayer.
 					for(var/datum/alternate_appearance/alt_appearance in user.viewing_alternate_appearances)
 						if(alt_appearance.owner == A) //If it turns out they are, don't blow their cover. That'd be rude.
 							atoms.Add(image(alt_appearance.img, A.loc, layer = 4, dir = A.dir)) //Render their disguise.
@@ -299,7 +299,7 @@ GLOBAL_LIST_INIT(SpookyGhosts, list("ghost","shade","shade2","ghost-narsie","hor
 	// Sort the atoms into their layers
 	var/list/sorted = sort_atoms_by_layer(atoms)
 	var/center_offset = (size-1)/2 * 32 + 1
-	for(var/i; i <= sorted.len; i++)
+	for(var/i; i <= length(sorted); i++)
 		var/atom/A = sorted[i]
 		if(A)
 			var/icon/img = getFlatIcon(A)//build_composite_icon(A)
@@ -508,7 +508,7 @@ GLOBAL_LIST_INIT(SpookyGhosts, list("ghost","shade","shade2","ghost-narsie","hor
 	addtimer(CALLBACK(src, PROC_REF(reset_cooldown)), 6.4 SECONDS) // magic numbers here too
 
 /obj/item/camera/digital/captureimage(atom/target, mob/user, flag)
-	if(saved_pictures.len >= max_storage)
+	if(length(saved_pictures) >= max_storage)
 		to_chat(user, "<span class='notice'>Maximum photo storage capacity reached.</span>")
 		return
 	to_chat(user, "Picture saved.")
@@ -664,7 +664,7 @@ GLOBAL_LIST_INIT(SpookyGhosts, list("ghost","shade","shade2","ghost-narsie","hor
 /obj/item/camera/proc/sort_atoms_by_layer(list/atoms)
 	// Comb sort icons based on levels
 	var/list/result = atoms.Copy()
-	var/gap = result.len
+	var/gap = length(result)
 	var/swapped = 1
 	while(gap > 1 || swapped)
 		swapped = 0
@@ -672,7 +672,7 @@ GLOBAL_LIST_INIT(SpookyGhosts, list("ghost","shade","shade2","ghost-narsie","hor
 			gap = round(gap / 1.3) // 1.3 is the emperic comb sort coefficient
 		if(gap < 1)
 			gap = 1
-		for(var/i = 1; gap + i <= result.len; i++)
+		for(var/i = 1; gap + i <= length(result); i++)
 			var/atom/l = result[i]		//Fucking hate
 			var/atom/r = result[gap+i]	//how lists work here
 			if(l.layer > r.layer)		//no "result[i].layer" for me

code/modules/paperwork/silicon_photography.dm

@@ -45,7 +45,7 @@
 
 	var/list/nametemp = list()
 	var/find
-	if(cam.aipictures.len == 0)
+	if(length(cam.aipictures) == 0)
 		to_chat(usr, "<span class='userdanger'>No images saved</span>")
 		return
 	for(var/datum/picture/t in cam.aipictures)