Makes getFlatIcon slower. (Also more precise) (#34199)

* getFlatIcon fixes and improvements. DO NOT TOUCH

* Fixes area blendings

* Stuff

* Drops the named arg

code/modules/paperwork/photography.dm

@@ -190,7 +190,7 @@
 
 
 /obj/item/device/camera/proc/camera_get_icon(list/turfs, turf/center)
-	var/atoms[] = list()
+	var/list/atoms = list()
 	for(var/turf/T in turfs)
 		atoms.Add(T)
 		for(var/atom/movable/A in T)
@@ -203,15 +203,7 @@
 					continue
 			atoms.Add(A)
 
-	var/list/sorted = list()
-	var/j
-	for(var/i = 1 to atoms.len)
-		var/atom/c = atoms[i]
-		for(j = sorted.len, j > 0, --j)
-			var/atom/c2 = sorted[j]
-			if(c2.layer <= c.layer)
-				break
-		sorted.Insert(j+1, c)
+	var/list/sorted = sortTim(atoms,/proc/cmp_atom_layer_asc)
 
 	var/icon/res = icon('icons/effects/96x96.dmi', "")
 
@@ -222,8 +214,8 @@
 			if(L.lying)
 				img.Turn(L.lying)
 
-		var/offX = 32 * (A.x - center.x) + A.pixel_x + 33
-		var/offY = 32 * (A.y - center.y) + A.pixel_y + 33
+		var/offX = world.icon_size * (A.x - center.x) + A.pixel_x + 33
+		var/offY = world.icon_size * (A.y - center.y) + A.pixel_y + 33
 		if(ismovableatom(A))
 			var/atom/movable/AM = A
 			offX += AM.step_x
@@ -235,7 +227,9 @@
 			blueprints = 1
 
 	for(var/turf/T in turfs)
-		res.Blend(getFlatIcon(T.loc), blendMode2iconMode(T.blend_mode), 32 * (T.x - center.x) + 33, 32 * (T.y - center.y) + 33)
+		var/area/A = T.loc
+		if(A.icon_state)//There's actually something to blend in.
+			res.Blend(getFlatIcon(A), blendMode2iconMode(A.blend_mode), world.icon_size * (T.x - center.x) + 33, world.icon_size * (T.y - center.y) + 33)
 
 	return res