Refactor a lot of code: make only one registration function for grinder, extractor and electric furnace (compressor will follow soon)

technic/machines/register/recipes.lua

@@ -0,0 +1,63 @@
+
+technic.recipes = {}
+function technic.register_recipe_type(typename, desc)
+	if unified_inventory and unified_inventory.register_craft_type then
+		unified_inventory.register_craft_type(typename, {
+			description = desc,
+			height = 1,
+			width = 1,
+		})
+	end
+	technic.recipes[typename] = {}
+end
+
+function technic.register_recipe(typename, data)
+	local src = ItemStack(data.input):get_name()
+	technic.recipes[typename][src] = data
+	if unified_inventory then
+		unified_inventory.register_craft({
+			type = typename,
+			output = data.output,
+			items = {data.input},
+			width = 0,
+		})
+	end
+end
+
+function technic.get_recipe(typename, item)
+	if typename == "cooking" then -- Already builtin in Minetest, so use that
+		local result = minetest.get_craft_result({
+			method = "cooking",
+			width = 1,
+			items = {item}})
+		-- Compatibility layer
+		if not result or result.time == 0 then
+			return nil
+		else
+			return {time = result.time,
+			        input = item:get_name(),
+			        output = result.item:to_string()}
+		end
+	end
+	local recipe = technic.recipes[typename][item:get_name()]
+	if recipe and item:get_count() >= ItemStack(recipe.input):get_count() then
+		return recipe
+	else
+		return nil
+	end
+end
+
+-- Handle aliases
+minetest.after(0.01, function ()
+	for _, recipes_list in pairs(technic.recipes) do
+		for ingredient, recipe in pairs(recipes_list) do
+			ingredient = minetest.registered_aliases[ingredient]
+			while ingredient do
+				recipes_list[ingredient] = recipe
+				ingredient = minetest.registered_aliases[ingredient]
+			end
+		end
+	end
+end)
+
+