Adds preset mineral walls for mappers. (#18958)

Icons for these would be helpful if anyone were to provide them,
otherwise I'll have to shitsprite something up.

---------

Co-authored-by: Mattia <[email protected]>

code/modules/mining/mine_turfs.dm

@@ -20,7 +20,7 @@ var/list/mineral_can_smooth_with = list(
 	/turf/unsimulated/wall
 )
 
-/turf/simulated/mineral //wall piece
+/turf/simulated/mineral
 	name = "rock"
 	icon = 'icons/turf/smooth/rock_dense.dmi'
 	icon_state = "preview_wall"
@@ -606,6 +606,61 @@ var/list/mineral_can_smooth_with = list(
 				if(destination.CanZPass(H, UP))
 					H.climb(UP, src, 20)
 
+/** Preset mineral walls.
+ * These are used to spawn specific types of mineral walls in the map.
+ * Use one of the subtypes below or, in case a new ore is added but the preset isn't created, set preset_mineral_name to the ORE_X define.
+*/
+/turf/simulated/mineral/preset
+	var/preset_mineral_name
+
+/turf/simulated/mineral/preset/Initialize(mapload)
+	..()
+	return INITIALIZE_HINT_LATELOAD
+
+/turf/simulated/mineral/preset/LateInitialize()
+	. = ..()
+	change_mineral(preset_mineral_name, TRUE)
+
+/turf/simulated/mineral/preset/phoron
+	name = "phoron mineral wall"
+	preset_mineral_name = ORE_PHORON
+
+/turf/simulated/mineral/preset/coal
+	name = "coal mineral wall"
+	preset_mineral_name = ORE_COAL
+
+/turf/simulated/mineral/preset/gold
+	name = "gold mineral wall"
+	preset_mineral_name = ORE_GOLD
+
+/turf/simulated/mineral/preset/diamond
+	name = "diamond mineral wall"
+	preset_mineral_name = ORE_DIAMOND
+
+/turf/simulated/mineral/preset/iron
+	name = "iron mineral wall"
+	preset_mineral_name = ORE_IRON
+
+/turf/simulated/mineral/preset/platinum
+	name = "platinum mineral wall"
+	preset_mineral_name = ORE_PLATINUM
+
+/turf/simulated/mineral/preset/bauxite
+	name = "bauxite mineral wall"
+	preset_mineral_name = ORE_BAUXITE
+
+/turf/simulated/mineral/preset/galena
+	name = "galena mineral wall"
+	preset_mineral_name = ORE_GALENA
+
+/turf/simulated/mineral/preset/uranium
+	name = "uranium mineral wall"
+	preset_mineral_name = ORE_URANIUM
+
+/turf/simulated/mineral/preset/metallic_hydrogen
+	name = "metallic_hydrogen mineral wall"
+	preset_mineral_name = ORE_HYDROGEN
+
 // Some extra types for the surface to keep things pretty.
 /turf/simulated/mineral/surface
 	mined_turf = /turf/unsimulated/floor/asteroid/ash

html/changelogs/mattatlas-minerals.yml

@@ -0,0 +1,13 @@
+# Your name.
+author: MattAtlas
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes:
+  - qol: "Added preset mineral walls for mappers."