Add Flock plating under Flock floortiles

code/turf/floors.dm

@@ -1609,6 +1609,9 @@ DEFINE_FLOORS(grasslush/thin,
 	if(!force_break)
 		if(src.reinforced) return
 	if(!intact) return
+	if (src.flock_plating_under)
+		src.ReplaceWith("FeatherPlating", FALSE)
+		return
 	if (!icon_old)
 		icon_old = icon_state
 	if (!name_old)
@@ -1800,10 +1803,14 @@ DEFINE_FLOORS(grasslush/thin,
 
 		// Don't replace with an [else]! If a prying tool is found above [intact] might become 0 and this runs too, which is how floor swapping works now! - BatElite
 		if (!intact)
-			restore_tile()
-			src.plate_mat = src.material
-			if(C.material)
-				src.setMaterial(C.material)
+			if (istype(src, /turf/simulated/floor/plating/feather_plating))
+				var/turf/simulated/floor/plating/feather_plating/plating = src
+				plating.restore_tile(C.material)
+			else
+				restore_tile()
+				src.plate_mat = src.material
+				if(C.material)
+					src.setMaterial(C.material)
 			playsound(src, "sound/impact_sounds/Generic_Stab_1.ogg", 50, 1)
 
 			if(!istype(src.material, /datum/material/metal/steel))

code/turf/turf.dm

@@ -46,6 +46,8 @@
 	var/tmp/allow_unrestricted_hotbox = 0
 	var/wet = 0
 	var/sticky = FALSE
+	/// this turf will be replaced by a flock plating tile if it becomes plating in the future
+	var/flock_plating_under = FALSE
 	throw_unlimited = 0 //throws cannot stop on this tile if true (also makes space drift)
 
 	var/step_material = 0
@@ -488,6 +490,7 @@ proc/generate_space_color()
 /turf/proc/ReplaceWith(var/what, var/keep_old_material = 1, var/handle_air = 1, handle_dir = 1, force = 0)
 	var/turf/simulated/new_turf
 	var/old_dir = dir
+	var/flock_plating_is_under = src.flock_plating_under || istype(src, /turf/simulated/floor/plating/feather_plating)
 
 	var/oldmat = src.material
 
@@ -567,24 +570,36 @@ proc/generate_space_color()
 			new_turf = new /turf/space/fluid(src)
 		if ("Floor")
 			new_turf = new /turf/simulated/floor(src)
+			if (flock_plating_is_under)
+				new_turf.flock_plating_under = TRUE
 		if ("MetalFoam")
 			new_turf = new /turf/simulated/floor/metalfoam(src)
 		if ("EngineFloor")
 			new_turf = new /turf/simulated/floor/engine(src)
+			if (flock_plating_is_under)
+				new_turf.flock_plating_under = TRUE
 		if ("Circuit")
 			new_turf = new /turf/simulated/floor/circuit(src)
+			if (flock_plating_is_under)
+				new_turf.flock_plating_under = TRUE
 		if ("RWall")
 			if (map_settings)
 				new_turf = new map_settings.rwalls (src)
 			else
 				new_turf = new /turf/simulated/wall/r_wall(src)
+			if (flock_plating_is_under)
+				new_turf.flock_plating_under = TRUE
 		if("Concrete")
 			new_turf = new /turf/simulated/floor/concrete(src)
 		if ("Wall")
 			if (map_settings)
 				new_turf = new map_settings.walls (src)
 			else
 				new_turf = new /turf/simulated/wall(src)
+			if (flock_plating_is_under)
+				new_turf.flock_plating_under = TRUE
+		if ("FeatherPlating")
+			new_turf = new /turf/simulated/floor/plating/feather_plating(src)
 		if ("Unsimulated Floor")
 			new_turf = new /turf/unsimulated/floor(src)
 		else

code/turf/turf_flock.dm

@@ -3,6 +3,77 @@
 // -----
 // FLOOR
 // -----
+/turf/simulated/floor/plating/feather_plating
+	name = "weird plating"
+	desc = "A strange Flock under-plating. It looks rough enough that it could support tile placement."
+	icon = 'icons/misc/featherzone.dmi'
+	icon_state = "floor-plating"
+	mat_appearances_to_ignore = list("gnesis")
+	mat_changename = FALSE
+	mat_changedesc = FALSE
+
+/turf/simulated/floor/plating/feather_plating/New()
+	..()
+	setMaterial(getMaterial("gnesis"))
+	setIntact(FALSE)
+
+/turf/simulated/floor/plating/feather_plating/special_desc(dist, mob/user)
+	if (isflock(user) && !intact)
+		return {"<span class='flocksay'><span class='bold'>###=-</span> Ident unknown. No data packet received.
+			<br><span class='bold'>###=-</span></span>"}
+	else
+		return null
+
+/turf/simulated/floor/plating/feather_plating/to_plating()
+	if (!intact)
+		return
+	setIntact(FALSE)
+
+	icon = initial(icon)
+	icon_state = initial(icon_state)
+	src.UpdateIcon()
+
+	mat_appearances_to_ignore = list("gnesis")
+	mat_changename = FALSE
+	mat_changedesc = FALSE
+	setMaterial(getMaterial("gnesis"))
+
+	name = initial(name)
+	desc = initial(desc)
+
+	levelupdate()
+
+/turf/simulated/floor/plating/feather_plating/restore_tile(datum/material/mat)
+	if (intact)
+		return
+	setIntact(TRUE)
+
+	icon = 'icons/turf/floors.dmi'
+	icon_state = "floor"
+	src.UpdateIcon()
+
+	mat_appearances_to_ignore = list("steel")
+	mat_changename = TRUE
+	mat_changedesc = TRUE
+	if (mat)
+		setMaterial(mat)
+	else
+		setMaterial(getMaterial("steel"))
+
+	src.name = replacetext(src.name, initial(src.name), "floor")
+	src.desc = replacetext(src.desc, initial(src.desc), "")
+
+	levelupdate()
+
+/turf/simulated/floor/plating/feather_plating/break_tile_to_plating()
+	return
+
+/turf/simulated/floor/plating/feather_plating/break_tile()
+	return
+
+/turf/simulated/floor/plating/feather_plating/burn_tile()
+	return
+
 /turf/simulated/floor/feather
 	name = "weird floor"
 	desc = "I don't like the looks of that whatever-it-is."
@@ -13,6 +84,7 @@
 	mat_changename = 0
 	mat_changedesc = 0
 	broken = 0
+	flock_plating_under = TRUE
 	step_material = "step_plating"
 	step_priority = STEP_PRIORITY_MED
 	var/health = 50
@@ -73,8 +145,7 @@
 /turf/simulated/floor/feather/break_tile_to_plating()
 	// if the turf's on, turn it off
 	off()
-	var/turf/simulated/floor/F = src.ReplaceWithFloor()
-	F.to_plating()
+	src.ReplaceWith("FeatherPlating", FALSE)
 
 /turf/simulated/floor/feather/break_tile()
 	off()