create mcl_vegan_utils mod.

create utilities for:

- loading files.
- changing drops of existing nodes.
- registering crops.

mcl_vegan_utils/debug.lua

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+function mcl_vegan.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

mcl_vegan_utils/depends.txt

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+mcl_core
+mcl_farming
+mcl_sounds

mcl_vegan_utils/drops.lua

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+function mcl_vegan.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
+
+function mcl_vegan.add_drop (target_name, item)
+	local drops = mcl_vegan.get_drop(target_name)
+	if not drops then return false end
+	table.insert(drops.items, item)
+	return true
+end
+
+function mcl_vegan.add_drops (target_name, items)
+	local drops = mcl_vegan.get_drop(target_name)
+	if not drops then return false end
+	for _, item in pairs(items) do
+		table.insert(drops.items, item)
+	end
+	return true
+end

mcl_vegan_utils/farming.lua

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+local registered_plants = {}
+mcl_vegan.registered_plants = registered_plants
+
+local grasses = {
+	"mcl_flowers:tallgrass",
+	"mcl_flowers:fern",
+	"mcl_flowers:double_grass",
+	"mcl_flowers:double_fern",
+}
+
+function mcl_vegan.register_basic_plant (own_mod_name, base_name, def)
+	def.own_mod_name = own_mod_name
+	def.base_name = base_name
+
+	local full_base_name = own_mod_name .. ":" .. base_name
+
+	registered_plants[full_base_name] = def
+
+	local seed = own_mod_name .. ":" .. def.seed
+	local descriptions = def.descriptions
+
+	-- copied from wheat
+	if def.crop_heights == nil then
+		def.crop_heights = {
+			-5/16, -2/16, 0, 3/16,
+			5/16, 6/16, 7/16, 8/16,
+		}
+	end
+	local crop_heights = def.crop_heights
+
+	local final_drops = def.drops
+	local interval = def.growth_interval
+	local chance = def.growth_chance
+	if def.can_forage == nil then def.can_forage = true end
+	local can_forage = def.can_forage
+
+
+
+	local function register_plant_stage (stage, drops)
+		local texture = own_mod_name .. "_" .. base_name .. "_stage_" .. (stage - 1) .. ".png"
+
+		minetest.register_node(full_base_name .. "_" .. stage, {
+			description = descriptions.crop .. " (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, seed)
+	end
+
+	register_plant_stage(8, final_drops)
+
+	mcl_farming:add_plant("plant_" .. base_name, full_base_name .. "_8", {
+		full_base_name .. "_1",
+		full_base_name .. "_2",
+		full_base_name .. "_3",
+		full_base_name .. "_4",
+		full_base_name .. "_5",
+		full_base_name .. "_6",
+		full_base_name .. "_7",
+	}, interval, chance)
+
+	if can_forage then
+		for _, grass in pairs(grasses) do
+			local drop = mcl_vegan.get_drop(grass)
+			drop.max_items = drop.max_items + 1
+
+			mcl_vegan.add_drop(grass, {
+				items = { seed },
+				rarity = 8,
+			})
+		end
+	end
+end

mcl_vegan_utils/init.lua

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+local mcl_vegan = rawget(_G, "mcl_vegan") or {}
+rawset(_G, "mcl_vegan", mcl_vegan)
+
+local function include (filename)
+	local modname = minetest.get_current_modname()
+	local path = minetest.get_modpath(modname)
+	return dofile(path .. "/" .. filename .. ".lua")
+end
+rawset(_G, "include", include)
+
+include("debug")
+include("farming")
+include("drops")

mcl_vegan_utils/mod.conf

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+name = mcl_vegan_utils
+description = utilities for the mcl_vegan modpack.
+title = mcl vegan utilities