technic/technic/machines/register/grinder_recipes.lua

local S = technic.getter

technic.register_recipe_type("grinding", { description = S("Grinding") })

function technic.register_grinder_recipe(data)
	data.time = data.time or 3
	technic.register_recipe("grinding", data)
end

local recipes = {
	-- Dusts
	{ "default:coal_lump", "technic:coal_dust 2" },
	{ "default:copper_lump", "technic:copper_dust 2" },
	{ "default:desert_stone", "default:desert_sand" },
	{ "default:gold_lump", "technic:gold_dust 2" },
	{ "default:iron_lump", "technic:wrought_iron_dust 2" },
	{ "technic:chromium_lump", "technic:chromium_dust 2" },
	{ "technic:uranium_lump", "technic:uranium_dust 2" },
	{ "technic:zinc_lump", "technic:zinc_dust 2" },
	{ "technic:lead_lump", "technic:lead_dust 2" },
	{ "technic:sulfur_lump", "technic:sulfur_dust 2" },
	{ "default:stone", "technic:stone_dust" },
	{ "default:sand", "technic:stone_dust" },

	-- Other
	{ "default:cobble", "default:gravel" },
	{ "default:gravel", "default:sand" },
	{ "default:sandstone", "default:sand 2" }, -- reverse recipe can be found in the compressor
}

-- defuse the sandstone -> 4 sand recipe to avoid infinite sand bugs (also consult the inverse compressor recipe)
minetest.register_craft({
	output = "default:sandstone 0",
	recipe = {
		{ 'default:sandstone' }
	},
})

if minetest.get_modpath("farming") then
	table.insert(recipes, { "farming:seed_wheat", "farming:flour 1" })
end

if minetest.get_modpath("moreores") then
	table.insert(recipes, { "moreores:mithril_lump", "technic:mithril_dust 2" })
	table.insert(recipes, { "moreores:silver_lump", "technic:silver_dust 2" })
	table.insert(recipes, { "moreores:tin_lump", "technic:tin_dust 2" })
end

if minetest.get_modpath("gloopores") or minetest.get_modpath("glooptest") then
	table.insert(recipes, { "gloopores:alatro_lump", "technic:alatro_dust 2" })
	table.insert(recipes, { "gloopores:kalite_lump", "technic:kalite_dust 2" })
	table.insert(recipes, { "gloopores:arol_lump", "technic:arol_dust 2" })
	table.insert(recipes, { "gloopores:talinite_lump", "technic:talinite_dust 2" })
	table.insert(recipes, { "gloopores:akalin_lump", "technic:akalin_dust 2" })
end

if minetest.get_modpath("homedecor") then
	table.insert(recipes, { "home_decor:brass_ingot", "technic:brass_dust 1" })
end

for _, data in pairs(recipes) do
	technic.register_grinder_recipe({ input = { data[1] }, output = data[2] })
end

-- defuse common grinder unfriendly recipes
if minetest.get_modpath("fake_fire") then -- from homedecor_modpack
	minetest.register_craft({ output = 'default:cobble 0', recipe = { { 'default:cobble' } } })
	minetest.register_craft({ output = 'default:gravel 0', recipe = { { 'default:gravel' } } })
end

-- dusts
local function register_dust(name, ingot)
	local lname = string.lower(name)
	lname = string.gsub(lname, ' ', '_')
	minetest.register_craftitem("technic:" .. lname .. "_dust", {
		description = S("%s Dust"):format(S(name)),
		inventory_image = "technic_" .. lname .. "_dust.png",
	})
	if ingot then
		minetest.register_craft({
			type = "cooking",
			recipe = "technic:" .. lname .. "_dust",
			output = ingot,
		})
		technic.register_grinder_recipe({ input = { ingot }, output = "technic:" .. lname .. "_dust 1" })
	end
end

-- Sorted alphibeticaly
register_dust("Brass", "technic:brass_ingot")
register_dust("Bronze", "default:bronze_ingot")
register_dust("Carbon Steel", "technic:carbon_steel_ingot")
register_dust("Cast Iron", "technic:cast_iron_ingot")
register_dust("Chernobylite", "technic:chernobylite_block")
register_dust("Chromium", "technic:chromium_ingot")
register_dust("Coal", nil)
register_dust("Copper", "default:copper_ingot")
register_dust("Lead", "technic:lead_ingot")
register_dust("Gold", "default:gold_ingot")
register_dust("Mithril", "moreores:mithril_ingot")
register_dust("Silver", "moreores:silver_ingot")
register_dust("Stainless Steel", "technic:stainless_steel_ingot")
register_dust("Stone", "default:stone")
register_dust("Sulfur", nil)
register_dust("Tin", "moreores:tin_ingot")
register_dust("Wrought Iron", "technic:wrought_iron_ingot")
register_dust("Zinc", "technic:zinc_ingot")
if minetest.get_modpath("gloopores") or minetest.get_modpath("glooptest") then
	register_dust("Akalin", "glooptest:akalin_ingot")
	register_dust("Alatro", "glooptest:alatro_ingot")
	register_dust("Arol", "glooptest:arol_ingot")
	register_dust("Kalite", nil)
	register_dust("Talinite", "glooptest:talinite_ingot")
end

for p = 0, 35 do
	local nici = (p ~= 0 and p ~= 7 and p ~= 35) and 1 or nil
	local psuffix = p == 7 and "" or p
	local ingot = "technic:uranium" .. psuffix .. "_ingot"
	local dust = "technic:uranium" .. psuffix .. "_dust"
	minetest.register_craftitem(dust, {
		description = S("%s Dust"):format(string.format(S("%.1f%%-Fissile Uranium"), p / 10)),
		inventory_image = "technic_uranium_dust.png",
		on_place_on_ground = minetest.craftitem_place_item,
		groups = { uranium_dust = 1, not_in_creative_inventory = nici },
	})
	minetest.register_craft({
		type = "cooking",
		recipe = dust,
		output = ingot,
	})
	technic.register_grinder_recipe({ input = { ingot }, output = dust })
end

local function uranium_dust(p)
	return "technic:uranium" .. (p == 7 and "" or p) .. "_dust"
end

for pa = 0, 34 do
	for pb = pa + 1, 35 do
		local pc = (pa + pb) / 2
		if pc == math.floor(pc) then
			minetest.register_craft({
				type = "shapeless",
				recipe = { uranium_dust(pa), uranium_dust(pb) },
				output = uranium_dust(pc) .. " 2",
			})
		end
	end
end

minetest.register_craft({
	type = "fuel",
	recipe = "technic:coal_dust",
	burntime = 50,
})

if minetest.get_modpath("gloopores") or minetest.get_modpath("glooptest") then
	minetest.register_craft({
		type = "fuel",
		recipe = "technic:kalite_dust",
		burntime = 37.5,
	})
end