add descriptor scaling, gives humans numbers

code/modules/mob/living/carbon/human/descriptors/descriptors_generic.dm

@@ -20,6 +20,9 @@
 		"much taller than you",
 		"towering over you"
 		)
+	var/list/scale_effect = list(
+		SPECIES_HUMAN = list(-7, -4, 0, 4, 7)
+	)
 
 /datum/mob_descriptor/build
 	name = "build"
@@ -43,3 +46,6 @@
 		"built much larger than you",
 		"dwarfing you"
 		)
+	var/list/scale_effect = list(
+		SPECIES_HUMAN = list(-7.5, 0, 0, 0, 7.5)
+	)

code/modules/mob/living/carbon/human/update_icons.dm

@@ -189,16 +189,37 @@ Please contact me on #coderbus IRC. ~Carn x
 
 	overlays = overlays_to_apply
 
-	var/matrix/M = matrix()
-	if(lying)
+	var/matrix/M = new
+	var/list/scale = get_scale()
+	M.Scale(scale[1], scale[2])
+	if (lying)
 		M.Turn(90)
-		M.Scale(size_multiplier)
-		M.Translate(1, -6-default_pixel_z)
+		M.Translate(1, -6 - default_pixel_z)
 	else
-		M.Scale(size_multiplier)
-		M.Translate(0, 16*(size_multiplier-1))
+		M.Translate(0, 16 * (scale[2] - 1))
 	animate(src, transform = M, time = ANIM_LYING_TIME)
 
+
+/mob/living/carbon/human/proc/get_scale()
+	var/h_mul = LAZYACCESS(descriptors, "height")
+	if (h_mul)
+		var/datum/mob_descriptor/height/H = species.descriptors["height"]
+		if (H)
+			var/list/scale_effect = H.scale_effect[species.name]
+			if (scale_effect)
+				h_mul = 0.01 * scale_effect[h_mul]
+	var/b_mul = LAZYACCESS(descriptors, "build")
+	if (b_mul)
+		var/datum/mob_descriptor/build/B = species.descriptors["build"]
+		if (B)
+			var/list/scale_effect = B.scale_effect[species.name]
+			if (scale_effect)
+				b_mul = 0.01 * scale_effect[b_mul]
+	return list(
+		(1 + b_mul) * size_multiplier,
+		(1 + h_mul) * size_multiplier
+	)
+
 var/global/list/damage_icon_parts = list()
 
 /mob/living/carbon/human/proc/get_lying_offset(var/image/I)

code/modules/mob/new_player/preferences_setup.dm

@@ -104,16 +104,24 @@
 	preview_icon = icon('icons/effects/128x48.dmi', bgstate)
 	preview_icon.Scale(48+32, 16+32)
 
+	if(LAZYLEN(mannequin.descriptors))
+		for(var/entry in body_descriptors)
+			mannequin.descriptors[entry] = body_descriptors[entry]
+	var/list/scale = mannequin.get_scale()
+
 	mannequin.dir = NORTH
 	var/icon/stamp = getFlatIcon(mannequin, NORTH, always_use_defdir = 1)
+	stamp.Scale(scale[1] * stamp.Width(), scale[2] * stamp.Height())
 	preview_icon.Blend(stamp, ICON_OVERLAY, 25, 17)
 
 	mannequin.dir = WEST
 	stamp = getFlatIcon(mannequin, WEST, always_use_defdir = 1)
+	stamp.Scale(scale[1] * stamp.Width(), scale[2] * stamp.Height())
 	preview_icon.Blend(stamp, ICON_OVERLAY, 1, 9)
 
 	mannequin.dir = SOUTH
 	stamp = getFlatIcon(mannequin, SOUTH, always_use_defdir = 1)
+	stamp.Scale(scale[1] * stamp.Width(), scale[2] * stamp.Height())
 	preview_icon.Blend(stamp, ICON_OVERLAY, 49, 1)
 
 	preview_icon.Scale(preview_icon.Width() * 2, preview_icon.Height() * 2) // Scaling here to prevent blurring in the browser.