Restructuring, slabs and steps

init.lua

@@ -3,35 +3,44 @@ local minetest, nodecore
 
 local MOD_NAME = minetest.get_current_modname()
 
-local STAIR_NODE_BOX = {
-    type = "fixed", fixed = {
-        { -0.5, -0.5, -0.5, 0.5, 0.0, 0.5 },
-        { -0.5,  0.0,  0.0, 0.5, 0.5, 0.5 },
-    },
+-- Properties that every non-full block we're adding should share.
+local SHARED_NONFULL_PROPERTIES = {
+    drawtype   = "nodebox",
+    paramtype  = "light",
+    paramtype2 = "facedir",
+    sunlight_propagates = true,
 }
 
-local function do_the_cursed_thing(name, def)
-    local base_mod_name = name:gsub(":.*", "")
-    local base_name     = name:gsub(".*:", "")
+local function make_node_box(...) return { type = "fixed", fixed = { ... } } end
+local STAIR_NODE_BOX = make_node_box({ -0.5, -0.5, -0.5, 0.5, 0.0, 0.5 },
+                                     { -0.5,  0.0,  0.0, 0.5, 0.5, 0.5 })
+local SLAB_NODE_BOX  = make_node_box({ -0.5, -0.5, -0.5, 0.5, 0.0, 0.5 })
+local STEP_NODE_BOX  = make_node_box({ -0.5, -0.5,  0.0, 0.5, 0.0, 0.5 })
 
-    local stair_name = MOD_NAME .. ":" .. base_mod_name .. "__" .. base_name .. "_stair"
-    local stair_def  = nodecore.underride({
-        description = def.description .. " Stair",
+local function do_the_cursed_thing(base_full_name, base_def)
+    base_def = base_def or minetest.registered_nodes[base_full_name]
 
-        paramtype  = "light",
-        paramtype2 = "facedir",
+    local base_mod_name  = base_full_name:gsub(":.*", "")
+    local base_node_name = base_full_name:gsub(".*:", "")
 
-        drawtype      = "nodebox",
-        node_box      = STAIR_NODE_BOX,
-        selection_box = STAIR_NODE_BOX,
+    local function register_node_variant(variant, node_box)
+        minetest.register_node(
+            MOD_NAME .. ":" .. base_mod_name .. "__" .. base_node_name .. "_" .. variant:lower(),
+            nodecore.underride({
+                description = base_def.description .. " " .. variant,
+                groups = { [MOD_NAME .. ":" .. variant:lower()] = 1 },
 
-        sunlight_propagates = true,
-        groups = { stair = 1 },
-    }, def)
+                tiles = { { name = base_def.tiles[1], align_style = "world" } },
+                node_box = node_box, selection_box = node_box,
 
-    minetest.register_node(stair_name, stair_def)
+                drop = base_def.drop or base_full_name,
+                silktouch_as = base_def.silktouch_as or base_full_name,
+            }, SHARED_NONFULL_PROPERTIES, base_def))
+    end
+
+    register_node_variant("Stair", STAIR_NODE_BOX)
+    register_node_variant("Slab" , SLAB_NODE_BOX)
+    register_node_variant("Step" , STEP_NODE_BOX)
 end
 
-local plank_name = "nc_woodwork:plank"
-local plank_def  = minetest.registered_nodes[plank_name]
-do_the_cursed_thing(plank_name, plank_def)
+do_the_cursed_thing("nc_woodwork:plank")