Fixes resizing for icons taller than 32p

-Taller icons no longer sink into the tile below on the resize mechanics.
-Living mobs now have a var (vis_height) for their icon height, and humanmob species have a new var (icon_height) that overrides the vis_height for the resize proc.
-Also earlyports some tweaks to ambient occlusion. The new filter system took the old filter's settings as "make the shadows megathick and dummy intense" and that was ugly.

code/modules/vore/eating/living_vr.dm

@@ -29,6 +29,7 @@
 	var/can_be_drop_pred = TRUE			// Mobs are pred by default.
 	var/next_preyloop					// For Fancy sound internal loop
 	var/adminbus_trash = FALSE			// For abusing trash eater for event shenanigans.
+	var/vis_height = 32					// Sprite height used for resize features.
 
 //
 // Hook for generic creation of stuff on new creatures

code/modules/vore/resizing/resize_vr.dm

@@ -71,7 +71,7 @@ var/const/RESIZE_A_SMALLTINY = (RESIZE_SMALL + RESIZE_TINY) / 2
 		var/duration = (abs(change)+0.25) SECONDS
 		var/matrix/resize = matrix() // Defines the matrix to change the player's size
 		resize.Scale(new_size) //Change the size of the matrix
-		resize.Translate(0, 16 * (new_size - 1)) //Move the player up in the tile so their feet align with the bottom
+		resize.Translate(0, (vis_height/2) * (new_size - 1)) //Move the player up in the tile so their feet align with the bottom
 		animate(src, transform = resize, time = duration) //Animate the player resizing
 
 		var/aura_grow_to = change > 0 ? 2 : 0.5
@@ -85,9 +85,11 @@ var/const/RESIZE_A_SMALLTINY = (RESIZE_SMALL + RESIZE_TINY) / 2
 		update_transform() //Lame way
 
 /mob/living/carbon/human/resize(var/new_size, var/animate = TRUE)
+	if(species)
+		vis_height = species.icon_height
 	. = ..()
 	if(LAZYLEN(hud_list) && has_huds)
-		var/new_y_offset = 32 * (size_multiplier - 1)
+		var/new_y_offset = vis_height * (size_multiplier - 1)
 		for(var/index = 1 to hud_list.len)
 			var/image/HI = grab_hud(index)
 			HI.pixel_y = new_y_offset