musttest_game/mods/fencelike/init.lua

if not minetest.global_exists("default") then default = {} end
if not minetest.global_exists("fencelike") then fencelike = {} end
fencelike.modpath = minetest.get_modpath("fencelike")

local fence_collision_extra = minetest.settings:get_bool("enable_fence_tall") and 3/8 or 0
fence_collision_extra = 0 -- Ignore setting.




--
-- Fence registration helper
--

function default.register_fence(name, def)
	minetest.register_craft({
		output = name .. " 4",
		recipe = {
			{ def.material, 'group:stick', def.material },
			{ def.material, 'group:stick', def.material },
		}
	})

	local fence_texture = "default_fence_overlay.png^" .. def.texture ..
			"^default_fence_overlay.png^[makealpha:255,126,126"
	-- Allow almost everything to be overridden
	local default_fields = {
		paramtype = "light",
		drawtype = "nodebox",
		node_box = {
			type = "connected",
			fixed = {{-1/8, -1/2, -1/8, 1/8, 1/2, 1/8}},
			-- connect_top =
			-- connect_bottom =
			connect_front = {{-1/16,3/16,-1/2,1/16,5/16,-1/8},
				{-1/16,-5/16,-1/2,1/16,-3/16,-1/8}},
			connect_left = {{-1/2,3/16,-1/16,-1/8,5/16,1/16},
				{-1/2,-5/16,-1/16,-1/8,-3/16,1/16}},
			connect_back = {{-1/16,3/16,1/8,1/16,5/16,1/2},
				{-1/16,-5/16,1/8,1/16,-3/16,1/2}},
			connect_right = {{1/8,3/16,-1/16,1/2,5/16,1/16},
				{1/8,-5/16,-1/16,1/2,-3/16,1/16}},
		},
		collision_box = {
			type = "connected",
			fixed = {-1/8, -1/2, -1/8, 1/8, 1/2 + fence_collision_extra, 1/8},
			-- connect_top =
			-- connect_bottom =
			connect_front = {-1/8, -1/2, -1/2,  1/8, 1/2 + fence_collision_extra, -1/8},
			connect_left =  {-1/2, -1/2, -1/8, -1/8, 1/2 + fence_collision_extra,  1/8},
			connect_back =  {-1/8, -1/2,  1/8,  1/8, 1/2 + fence_collision_extra,  1/2},
			connect_right = { 1/8, -1/2, -1/8,  1/2, 1/2 + fence_collision_extra,  1/8}
		},
		connects_to = {"group:fence", "group:wood", "group:tree"},
		inventory_image = fence_texture,
		wield_image = fence_texture,
		tiles = {def.texture},
		sunlight_propagates = true,
		is_ground_content = false,
		groups = {},
	}
	for k, v in pairs(default_fields) do
		if not def[k] then
			def[k] = v
		end
	end

	-- Always add to the fence group, even if no group provided
	def.groups.fence = 1

	def.texture = nil
	def.material = nil

	minetest.register_node(name, def)
end

--
-- Fence rail registration helper
--

function default.register_fence_rail(name, def)
	minetest.register_craft({
		output = name .. " 8",
		recipe = {
			{ def.material, def.material },
			{ "group:stick", "group:stick"},
			{ def.material, def.material },
		}
	})

	local fence_rail_texture = "default_fence_rail_overlay.png^" .. def.texture ..
			"^default_fence_rail_overlay.png^[makealpha:255,126,126"
	-- Allow almost everything to be overridden
	local default_fields = {
		paramtype = "light",
		drawtype = "nodebox",
		node_box = {
			type = "connected",
			fixed = {{-1/16,  3/16, -1/16, 1/16,  5/16, 1/16},
				 {-1/16, -3/16, -1/16, 1/16, -5/16, 1/16}},
			-- connect_top =
			-- connect_bottom =
			connect_front = {{-1/16,  3/16, -1/2,   1/16,  5/16, -1/16},
				         {-1/16, -5/16, -1/2,   1/16, -3/16, -1/16}},
			connect_left =  {{-1/2,   3/16, -1/16, -1/16,  5/16,  1/16},
				         {-1/2,  -5/16, -1/16, -1/16, -3/16,  1/16}},
			connect_back =  {{-1/16,  3/16,  1/16,  1/16,  5/16,  1/2 },
				         {-1/16, -5/16,  1/16,  1/16, -3/16,  1/2 }},
			connect_right = {{ 1/16,  3/16, -1/16,  1/2,   5/16,  1/16},
		                         { 1/16, -5/16, -1/16,  1/2,  -3/16,  1/16}}
		},
		collision_box = {
			type = "connected",
			fixed = {-1/8, -1/2, -1/8, 1/8, 1/2 + fence_collision_extra, 1/8},
			-- connect_top =
			-- connect_bottom =
			connect_front = {-1/8, -1/2, -1/2,  1/8, 1/2 + fence_collision_extra, -1/8},
			connect_left =  {-1/2, -1/2, -1/8, -1/8, 1/2 + fence_collision_extra,  1/8},
			connect_back =  {-1/8, -1/2,  1/8,  1/8, 1/2 + fence_collision_extra,  1/2},
			connect_right = { 1/8, -1/2, -1/8,  1/2, 1/2 + fence_collision_extra,  1/8}
		},
		connects_to = {"group:fence", "group:wall"},
		inventory_image = fence_rail_texture,
		wield_image = fence_rail_texture,
		tiles = {def.texture},
		sunlight_propagates = true,
		is_ground_content = false,
		groups = {},
	}
	for k, v in pairs(default_fields) do
		if def[k] == nil then
			def[k] = v
		end
	end

	-- Always add to the fence group, even if no group provided
	def.groups.fence = 1

	def.texture = nil
	def.material = nil

	minetest.register_node(name, def)
end