Custom boxy nodes (stairs, slabs) and collision changes

games/minimal/mods/default/init.lua

@@ -926,7 +926,7 @@ minetest.register_node("default:rail", {
 	walkable = false,
 	selection_box = {
 		type = "fixed",
-		--fixed = <default>
+		fixed = {-1/2, -1/2, -1/2, 1/2, -1/2+1/16, 1/2},
 	},
 	groups = {bendy=2,snappy=1,dig_immediate=2},
 })

games/minimal/mods/stairs/depends.txt

@@ -0,0 +1 @@
+default

games/minimal/mods/stairs/init.lua

@@ -0,0 +1,93 @@
+stairs = {}
+
+-- Node will be called stairs:stair_<subname>
+function stairs.register_stair(subname, recipeitem, groups, images, description)
+	minetest.register_node("stairs:stair_" .. subname, {
+		description = description,
+		drawtype = "nodebox",
+		tile_images = images,
+		paramtype = "light",
+		paramtype2 = "facedir",
+		is_ground_content = true,
+		groups = groups,
+		node_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+				{-0.5, 0, 0, 0.5, 0.5, 0.5},
+			},
+		},
+	})
+
+	minetest.register_craft({
+		output = 'stairs:stair_' .. subname .. ' 4',
+		recipe = {
+			{recipeitem, "", ""},
+			{recipeitem, recipeitem, ""},
+			{recipeitem, recipeitem, recipeitem},
+		},
+	})
+end
+
+-- Node will be called stairs:slab_<subname>
+function stairs.register_slab(subname, recipeitem, groups, images, description)
+	minetest.register_node("stairs:slab_" .. subname, {
+		description = description,
+		drawtype = "nodebox",
+		tile_images = images,
+		paramtype = "light",
+		is_ground_content = true,
+		groups = groups,
+		node_box = {
+			type = "fixed",
+			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+		},
+		selection_box = {
+			type = "fixed",
+			fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
+		},
+	})
+
+	minetest.register_craft({
+		output = 'stairs:slab_' .. subname .. ' 3',
+		recipe = {
+			{recipeitem, recipeitem, recipeitem},
+		},
+	})
+end
+
+-- Nodes will be called stairs:{stair,slab}_<subname>
+function stairs.register_stair_and_slab(subname, recipeitem, groups, images, desc_stair, desc_slab)
+	stairs.register_stair(subname, recipeitem, groups, images, desc_stair)
+	stairs.register_slab(subname, recipeitem, groups, images, desc_slab)
+end
+
+stairs.register_stair_and_slab("wood", "default:wood",
+		{snappy=2,choppy=2,oddly_breakable_by_hand=2},
+		{"default_wood.png"},
+		"Wooden stair",
+		"Wooden slab")
+
+stairs.register_stair_and_slab("stone", "default:stone",
+		{cracky=3},
+		{"default_stone.png"},
+		"Stone stair",
+		"Stone slab")
+
+stairs.register_stair_and_slab("cobble", "default:cobble",
+		{cracky=3},
+		{"default_cobble.png"},
+		"Cobble stair",
+		"Cobble slab")
+
+stairs.register_stair_and_slab("brick", "default:brick",
+		{cracky=3},
+		{"default_brick.png"},
+		"Brick stair",
+		"Brick slab")
+
+stairs.register_stair_and_slab("sandstone", "default:sandstone",
+		{crumbly=2,cracky=2},
+		{"default_sandstone.png"},
+		"Sandstone stair",
+		"Sandstone slab")