adds better grass sprites (#53421)

adds better grass sprites, ported from eris
converts fairygrass into those sprites too
makes "plating" grass and jungle grass smooth with cool stuff on the edges
adds a sandy dirt tile, removes the old "sand" icon which was just puke colored noise

code/__DEFINES/icon_smoothing.dm

@@ -29,10 +29,11 @@
 
 #define SMOOTH_GROUP_OPEN_FLOOR S_TURF(4)				///turf/open/floor
 
-#define SMOOTH_GROUP_FLOOR_ASH S_TURF(5)				///turf/open/floor/plating/ashplanet/ash
-#define SMOOTH_GROUP_FLOOR_ASH_ROCKY S_TURF(6)			///turf/open/floor/plating/ashplanet/rocky
-#define SMOOTH_GROUP_FLOOR_ICE S_TURF(7)				///turf/open/floor/plating/ice
-#define SMOOTH_GROUP_FLOOR_SNOWED S_TURF(8)				///turf/open/floor/plating/snowed
+#define SMOOTH_GROUP_FLOOR_GRASS S_TURF(5)				///turf/open/floor/plating/grass
+#define SMOOTH_GROUP_FLOOR_ASH S_TURF(6)				///turf/open/floor/plating/ashplanet/ash
+#define SMOOTH_GROUP_FLOOR_ASH_ROCKY S_TURF(7)			///turf/open/floor/plating/ashplanet/rocky
+#define SMOOTH_GROUP_FLOOR_ICE S_TURF(8)				///turf/open/floor/plating/ice
+#define SMOOTH_GROUP_FLOOR_SNOWED S_TURF(9)				///turf/open/floor/plating/snowed
 
 #define SMOOTH_GROUP_CARPET S_TURF(10)					///turf/open/floor/carpet
 #define SMOOTH_GROUP_CARPET_BLACK S_TURF(11)			///turf/open/floor/carpet/black

code/game/turfs/open/floor/fancy_floor.dm

@@ -69,7 +69,7 @@
 /turf/open/floor/grass
 	name = "grass patch"
 	desc = "You can't tell if this is real grass or just cheap plastic imitation."
-	icon_state = "grass"
+	icon_state = "grass0"
 	floor_tile = /obj/item/stack/tile/grass
 	broken_states = list("sand")
 	flags_1 = NONE
@@ -84,7 +84,10 @@
 
 /turf/open/floor/grass/Initialize()
 	. = ..()
-	update_icon()
+	spawniconchange()
+
+/turf/open/floor/grass/proc/spawniconchange()
+	icon_state = "grass[rand(0,3)]"
 
 /turf/open/floor/grass/attackby(obj/item/C, mob/user, params)
 	if((C.tool_behaviour == TOOL_SHOVEL) && params)
@@ -98,12 +101,15 @@
 /turf/open/floor/grass/fairy //like grass but fae-er
 	name = "fairygrass patch"
 	desc = "Something about this grass makes you want to frolic. Or get high."
-	icon_state = "fairygrass"
+	icon_state = "fairygrass0"
 	floor_tile = /obj/item/stack/tile/fairygrass
 	light_range = 2
 	light_power = 0.80
 	light_color = COLOR_BLUE_LIGHT
 
+/turf/open/floor/grass/fairy/spawniconchange()
+	icon_state = "fairygrass[rand(0,3)]"
+
 /turf/open/floor/grass/snow
 	gender = PLURAL
 	name = "snow"
@@ -122,6 +128,9 @@
 	clawfootstep = FOOTSTEP_SAND
 	heavyfootstep = FOOTSTEP_GENERIC_HEAVY
 
+/turf/open/floor/grass/snow/spawniconchange()
+	return
+
 /turf/open/floor/grass/snow/try_replace_tile(obj/item/stack/tile/T, mob/user, params)
 	return
 
@@ -137,8 +146,7 @@
 	initial_gas_mix = OPENTURF_LOW_PRESSURE
 	slowdown = 0
 
-/turf/open/floor/grass/snow/basalt/Initialize()
-	. = ..()
+/turf/open/floor/grass/snow/basalt/spawniconchange()
 	if(prob(15))
 		icon_state = "basalt[rand(0, 12)]"
 		set_basalt_light(src)
@@ -162,13 +170,11 @@
 	clawfootstep = FOOTSTEP_SAND
 	heavyfootstep = FOOTSTEP_GENERIC_HEAVY
 
-/turf/open/floor/grass/fakebasalt/Initialize()
-	. = ..()
+/turf/open/floor/grass/fakebasalt/spawniconchange()
 	if(prob(15))
 		icon_state = "basalt[rand(0, 12)]"
 		set_basalt_light(src)
 
-
 /turf/open/floor/carpet
 	name = "carpet"
 	desc = "Soft velvet carpeting. Feels good between your toes."

code/game/turfs/open/floor/plating/misc_plating.dm

@@ -271,13 +271,37 @@
 /turf/open/floor/plating/grass
 	name = "grass"
 	desc = "A patch of grass."
-	icon_state = "grass"
-	broken_states = list("sand")
+	icon_state = "grass0"
 	bullet_bounce_sound = null
 	footstep = FOOTSTEP_GRASS
 	barefootstep = FOOTSTEP_GRASS
 	clawfootstep = FOOTSTEP_GRASS
 	heavyfootstep = FOOTSTEP_GENERIC_HEAVY
+	smoothing_flags = SMOOTH_CORNERS
+	smoothing_groups = list(SMOOTH_GROUP_TURF_OPEN,SMOOTH_GROUP_FLOOR_GRASS)
+	canSmoothWith = list(SMOOTH_GROUP_CLOSED_TURFS,SMOOTH_GROUP_FLOOR_GRASS)
+	layer = HIGH_TURF_LAYER
+	var/smooth_icon = 'icons/turf/floors/grass.dmi'
+
+/turf/open/floor/plating/grass/Initialize()
+	. = ..()
+	if(smoothing_flags)
+		var/matrix/translation = new
+		translation.Translate(-9, -9)
+		transform = translation
+		icon = smooth_icon
 
 /turf/open/floor/plating/grass/lavaland
 	initial_gas_mix = LAVALAND_DEFAULT_ATMOS
+
+/turf/open/floor/plating/sandy_dirt
+	gender = PLURAL
+	name = "dirt"
+	desc = "Upon closer examination, it's still dirt."
+	icon_state = "sand"
+	bullet_bounce_sound = null
+	footstep = FOOTSTEP_SAND
+	barefootstep = FOOTSTEP_SAND
+	clawfootstep = FOOTSTEP_SAND
+	heavyfootstep = FOOTSTEP_GENERIC_HEAVY
+	tiled_dirt = FALSE

code/game/turfs/open/floor/plating/planet.dm

@@ -45,12 +45,8 @@
 	initial_gas_mix = OPENTURF_DEFAULT_ATMOS
 	planetary_atmos = TRUE
 	desc = "Greener on the other side."
-	icon = 'icons/turf/floors.dmi'
 	icon_state = "junglegrass"
-
-/turf/open/floor/plating/grass/jungle/Initialize()
-	.=..()
-	icon_state = "[initial(icon_state)][rand(1,3)]"
+	smooth_icon = 'icons/turf/floors/junglegrass.dmi'
 
 /turf/closed/mineral/random/jungle
 	mineralSpawnChanceList = list(/obj/item/stack/ore/uranium = 5, /obj/item/stack/ore/diamond = 1, /obj/item/stack/ore/gold = 10,

code/modules/holodeck/turfs.dm

@@ -26,10 +26,14 @@
 /turf/open/floor/holofloor/grass
 	gender = PLURAL
 	name = "lush grass"
-	icon_state = "grass"
+	icon_state = "grass0"
 	bullet_bounce_sound = null
 	tiled_dirt = FALSE
 
+/turf/open/floor/holofloor/grass/Initialize()
+	. = ..()
+	icon_state = "grass[rand(0,3)]"
+
 /turf/open/floor/holofloor/beach
 	gender = PLURAL
 	name = "sand"