create mcl_soy mod.

mcl_soy/craft.lua

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+local modname = minetest.get_current_modname()
+
+local soy = modname .. ":soy"
+local tofu_raw = modname .. ":tofu_raw"
+
+minetest.register_craft({
+	output = tofu_raw,
+	recipe = {
+		{ soy, soy, soy },
+		{ soy, soy, soy },
+	},
+})
+
+minetest.register_craft({
+	type = "cooking",
+	output = modname .. ":tofu_cooked",
+	recipe = tofu_raw,
+	cooktime = 10,
+})

mcl_soy/depends.txt

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+mcl_core
+mcl_farming
+mcl_sounds

mcl_soy/init.lua

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+-- TODO: extract this into general utility mod.
+local function include (filename)
+	local modname = minetest.get_current_modname()
+	local path = minetest.get_modpath(modname)
+	return dofile(path .. "/" .. filename .. ".lua")
+end
+
+include("item")
+include("node")
+include("craft")

mcl_soy/item.lua

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+local modname = minetest.get_current_modname()
+
+minetest.register_craftitem(modname .. ":soy", {
+	description = "Soy Beans",
+	groups = {
+		craftitem = 1,
+		food = 1,
+		eatable = 1,
+	},
+	_mcl_saturation = 0.0,
+	inventory_image = modname .. "_soy.png",
+	on_place = function (item_stack, placer, pointed_thing)
+		return mcl_farming:place_seed(item_stack, placer, pointed_thing, modname .. ":soy_1")
+	end,
+	on_secondary_use = minetest.item_eat(1),
+})
+
+minetest.register_craftitem(modname .. ":tofu_raw", {
+	description = "Raw Tofu",
+	inventory_image = modname .. "_tofu_raw.png",
+	groups = {
+		craftitem = 1,
+		food = 1,
+		eatable = 3,
+	},
+	_mcl_saturation = 1.0,
+	on_place = minetest.item_eat(3),
+	on_secondary_use = minetest.item_eat(3),
+})
+
+minetest.register_craftitem(modname .. ":tofu_cooked", {
+	description = "Cooked Tofu",
+	inventory_image = modname .. "_tofu_cooked.png",
+	groups = {
+		food = 2,
+		eatable = 6,
+	},
+	_mcl_saturation = 4.0,
+	on_place = minetest.item_eat(6),
+	on_secondary_use = minetest.item_eat(6),
+})
+
+-- TODO: extract this into general utility mod.
+local function get_drop (target_name)
+	local def = minetest.registered_items[target_name]
+	if not def then return false end
+	def.drop = def.drop or {}
+	return def.drop
+end
+
+local function stringify_table (tab)
+	local result = "{ "
+	for key, value in pairs(tab) do
+		if type(key) == "table" then key = stringify_table(key) end
+		if type(value) == "table" then value = stringify_table(value) end
+		result = result .. key .. " = " .. value .. ", "
+	end
+	return result .. "}"
+end
+
+-- TODO: extract this into general utility mod.
+local function add_drop (target_name, item)
+	local drops = get_drop(target_name)
+	if not drops then return false end
+	table.insert(drops.items, item)
+	return true
+end
+
+local grasses = {
+	"mcl_flowers:tallgrass",
+	"mcl_flowers:fern",
+	"mcl_flowers:double_grass",
+	"mcl_flowers:double_fern",
+}
+
+for _, grass in pairs(grasses) do
+	add_drop(grass, {
+		items = { modname .. ":soy" },
+		rarity = 8,
+	})
+end

mcl_soy/mod.conf

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+name = mcl_soy
+description = adds soy and tofu to mineclone2.
+title = soy for mineclone2

mcl_soy/node.lua

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+local modname = minetest.get_current_modname()
+
+-- copied from wheat for now
+local crop_heights = {
+	-5/16,
+	-2/16,
+	0,
+	3/16,
+	5/16,
+	6/16,
+	7/16,
+	8/16,
+}
+
+local function register_plant_stage (stage, drops)
+	local texture = modname .. "_soy_stage_" .. (stage - 1) .. ".png"
+
+	minetest.register_node(modname .. ":soy_" .. stage, {
+		description = "Soy Plant (stage " .. stage .. ")",
+		paramtype = "light",
+		sunlight_propagates = true,
+		walkable = false,
+		drawtype = "plantlike",
+		drop = drops,
+		tiles = { texture },
+		inventory_image = texture,
+		wield_image = texture,
+		selection_box = {
+			type = "fixed",
+			fixed = {
+				{-0.5, -0.5, -0.5, 0.5, crop_heights[stage], 0.5}
+			},
+		},
+		groups = {
+			dig_immediate = 3,
+			not_in_creative_inventory = 1,
+			plant = 1,
+			attached_node = 1,
+			dig_by_water = 1,
+			destroy_by_lava_flow = 1,
+			dig_by_piston = 1,
+		},
+		sounds = mcl_sounds.node_sound_leaves_defaults(),
+		_mcl_blast_resistance = 0,
+	})
+end
+
+for i=1,7 do
+	register_plant_stage(i, modname .. ":soy")
+end
+
+register_plant_stage(8, {
+	max_items = 4,
+	items = {
+		{ items = { modname .. ":soy" } },
+		{ items = { modname .. ":soy 2" }, rarity = 2 },
+		{ items = { modname .. ":soy 4" }, rarity = 3 },
+		{ items = { modname .. ":soy" } },
+		{ items = { modname .. ":soy 5" }, rarity = 6 },
+	},
+})
+
+
+
+mcl_farming:add_plant("plant_soy", modname .. ":soy_8", {
+	modname .. ":soy_1",
+	modname .. ":soy_2",
+	modname .. ":soy_3",
+	modname .. ":soy_4",
+	modname .. ":soy_5",
+	modname .. ":soy_6",
+	modname .. ":soy_7",
+}, 20, 15)