minetest-mods/mydoors/my_door_wood/init.lua

local door_wood = { -- color, desc, image
	{"red", "Red Stained", "red"},
	{"grey", "Grey Stained", "grey"},
	{"dark_grey", "Dark Grey Stained", "dark_grey"},
	{"brown", "Brown Stained", "brown"},
	{"white", "White Stained", "white"},
	{"yellow", "Clear Stained", "yellow"},
	{"black", "Black", "black"},
}
for i in ipairs(door_wood) do
	local color = door_wood[i][1]
	local desc = door_wood[i][2]
	local img = door_wood[i][3]

minetest.register_node("my_door_wood:wood_"..color, {
	description = desc.." Wood",
	drawtype = "normal",
	paramtype = "light",
	tiles = {"mydoors_"..img.."_wood.png"},
	paramtype = "light",
	groups = {cracky = 2, choppy = 2},

})

-- Crafts

minetest.register_craft({
	output = "my_door_wood:wood_"..color,
	recipe = {
		{"default:wood", "", ""},
		{"dye:"..color, "", ""},
		{"", "", ""}
	}
})
end