game/technic.git

New file
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			technic.grinder_recipes ={}

			technic.register_grinder_recipe = function(src, dst)
			technic.grinder_recipes[src] = dst
			if unified_inventory then
			unified_inventory.register_craft(
			{
			type = "grinding",
			output = dst,
			items = {src},
			width = 0,
			})
			end
			end

			-- Receive an ItemStack of result by an ItemStack input
			technic.get_grinder_recipe = function(itemstack)
			local src_item = itemstack:to_table()
			if src_item == nil then
			return nil
			end
			local item_name = src_item["name"]
			if technic.grinder_recipes[item_name] then
			return ItemStack(technic.grinder_recipes[item_name])
			else
			return nil
			end
			end


			technic.register_grinder_recipe("default:stone","default:sand")
			technic.register_grinder_recipe("default:cobble","default:gravel")
			technic.register_grinder_recipe("default:gravel","default:dirt")
			technic.register_grinder_recipe("default:desert_stone","default:desert_sand")
			technic.register_grinder_recipe("default:iron_lump","technic:iron_dust 2")
			technic.register_grinder_recipe("default:steel_ingot","technic:iron_dust 1")
			technic.register_grinder_recipe("default:coal_lump","technic:coal_dust 2")
			technic.register_grinder_recipe("default:copper_lump","technic:copper_dust 2")
			technic.register_grinder_recipe("default:copper_ingot","technic:copper_dust 1")
			technic.register_grinder_recipe("default:gold_lump","technic:gold_dust 2")
			technic.register_grinder_recipe("default:gold_ingot","technic:gold_dust 1")
			--technic.register_grinder_recipe("default:bronze_ingot","technic:bronze_dust 1") -- Dust does not exist yet
			--technic.register_grinder_recipe("home_decor:brass_ingot","technic:brass_dust 1") -- needs check for the mod
			technic.register_grinder_recipe("moreores:tin_lump","technic:tin_dust 2")
			technic.register_grinder_recipe("moreores:tin_ingot","technic:tin_dust 1")
			technic.register_grinder_recipe("moreores:silver_lump","technic:silver_dust 2")
			technic.register_grinder_recipe("moreores:silver_ingot","technic:silver_dust 1")
			technic.register_grinder_recipe("moreores:mithril_lump","technic:mithril_dust 2")
			technic.register_grinder_recipe("moreores:mithril_ingot","technic:mithril_dust 1")
			technic.register_grinder_recipe("technic:chromium_lump","technic:chromium_dust 2")
			technic.register_grinder_recipe("technic:chromium_ingot","technic:chromium_dust 1")
			technic.register_grinder_recipe("technic:stainless_steel_ingot","stainless_steel_dust 1")
			technic.register_grinder_recipe("technic:brass_ingot","technic:brass_dust 1")
			technic.register_grinder_recipe("technic:zinc_lump","technic:zinc_dust 2")
			technic.register_grinder_recipe("technic:zinc_ingot","technic:zinc_dust 1")

			minetest.register_craftitem( "technic:coal_dust", {
			description = "Coal Dust",
			inventory_image = "technic_coal_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})

			minetest.register_craftitem( "technic:iron_dust", {
			description = "Iron Dust",
			inventory_image = "technic_iron_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})

			minetest.register_craft({
			type = "cooking",
			output = "default:steel_ingot",
			recipe = "technic:iron_dust",
			})

			minetest.register_craftitem( "technic:copper_dust", {
			description = "Copper Dust",
			inventory_image = "technic_copper_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "moreores:copper_ingot",
			recipe = "technic:copper_dust",
			})

			minetest.register_craftitem( "technic:tin_dust", {
			description = "Tin Dust",
			inventory_image = "technic_tin_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "moreores:tin_ingot",
			recipe = "technic:tin_dust",
			})

			minetest.register_craftitem( "technic:silver_dust", {
			description = "Silver Dust",
			inventory_image = "technic_silver_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "moreores:silver_ingot",
			recipe = "technic:silver_dust",
			})

			minetest.register_craftitem( "technic:gold_dust", {
			description = "Gold Dust",
			inventory_image = "technic_gold_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "moreores:gold_ingot",
			recipe = "technic:gold_dust",
			})

			minetest.register_craftitem( "technic:mithril_dust", {
			description = "Mithril Dust",
			inventory_image = "technic_mithril_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "moreores:mithril_ingot",
			recipe = "technic:mithril_dust",
			})

			minetest.register_craftitem( "technic:chromium_dust", {
			description = "Chromium Dust",
			inventory_image = "technic_chromium_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "technic:chromium_ingot",
			recipe = "technic:chromium_dust",
			})

			minetest.register_craftitem( "technic:bronze_dust", {
			description = "Bronze Dust",
			inventory_image = "technic_bronze_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "moreores:bronze_ingot",
			recipe = "technic:bronze_dust",
			})

			minetest.register_craftitem( "technic:brass_dust", {
			description = "Brass Dust",
			inventory_image = "technic_brass_dust.png",
			on_place_on_ground = minetest.craftitem_place_item,
			})
			minetest.register_craft({
			type = "cooking",
			output = "technic:brass_ingot",
			recipe = "technic:brass_dust",
			})

			minetest.register_craftitem( "technic:stainless_steel_dust", {
			description = "Stainless Steel Dust",
			inventory_image = "technic_stainless_steel_dust.png",
			})

			minetest.register_craft({
			type = "cooking",
			output = "technic:stainless_steel_ingot",
			recipe = "technic:stainless_steel_dust",
			})

			minetest.register_craftitem( "technic:zinc_dust", {
			description = "Zinc Dust",
			inventory_image = "technic_zinc_dust.png",
			})

			minetest.register_craft({
			type = "cooking",
			output = "technic:zinc_ingot",
			recipe = "technic:zinc_dust",
			})

			minetest.register_alias("grinder", "technic:grinder")
			minetest.register_craft({
			output = 'technic:grinder',
			recipe = {
			{'default:desert_stone', 'default:desert_stone', 'default:desert_stone'},
			{'default:desert_stone', 'default:diamond', 'default:desert_stone'},
			{'default:stone', 'moreores:copper_ingot', 'default:stone'},
			}
			})

			minetest.register_craftitem("technic:grinder", {
			description = "Grinder",
			stack_max = 99,
			})

			local grinder_formspec =
			"invsize[8,9;]"..
			"label[0,0;Grinder]"..
			"list[current_name;src;3,1;1,1;]"..
			"list[current_name;dst;5,1;2,2;]"..
			"list[current_player;main;0,5;8,4;]"

			minetest.register_node(
			"technic:grinder",
			{
			description = "Grinder",
			tiles = {"technic_lv_grinder_top.png", "technic_lv_grinder_bottom.png", "technic_lv_grinder_side.png",
			"technic_lv_grinder_side.png", "technic_lv_grinder_side.png", "technic_lv_grinder_front.png"},
			paramtype2 = "facedir",
			groups = {cracky=2},
			legacy_facedir_simple = true,
			sounds = default.node_sound_wood_defaults(),
			on_construct = function(pos)
			local meta = minetest.env:get_meta(pos)
			meta:set_string("infotext", "Grinder")
			meta:set_float("technic_power_machine", 1)
			meta:set_string("formspec", grinder_formspec)
			local inv = meta:get_inventory()
			inv:set_size("src", 1)
			inv:set_size("dst", 4)
			end,
			can_dig = function(pos,player)
			local meta = minetest.env:get_meta(pos);
			local inv = meta:get_inventory()
			if not inv:is_empty("src") or not inv:is_empty("dst") then
			minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
			return false
			else
			return true
			end
			end,
			})

			minetest.register_node(
			"technic:grinder_active",
			{
			description = "Grinder",
			tiles = {"technic_lv_grinder_top.png", "technic_lv_grinder_bottom.png", "technic_lv_grinder_side.png",
			"technic_lv_grinder_side.png", "technic_lv_grinder_side.png", "technic_lv_grinder_front_active.png"},
			paramtype2 = "facedir",
			groups = {cracky=2,not_in_creative_inventory=1},
			legacy_facedir_simple = true,
			sounds = default.node_sound_wood_defaults(),
			can_dig = function(pos,player)
			local meta = minetest.env:get_meta(pos);
			local inv = meta:get_inventory()
			if not inv:is_empty("src") or not inv:is_empty("dst") then
			minetest.chat_send_player(player:get_player_name(), "Machine cannot be removed because it is not empty");
			return false
			else
			return true
			end
			end,
			})

			minetest.register_abm(
			{ nodenames = {"technic:grinder","technic:grinder_active"},
			interval = 1,
			chance = 1,
			action = function(pos, node, active_object_count, active_object_count_wider)
			-- Run a machine through its states. Takes the same arguments as the ABM action
			-- and adds the machine's states and any extra data which is needed by the machine.
			-- A machine is characterized by running through a set number of states (usually 2:
			-- Idle and active) in some order. A state decides when to move to the next one
			-- and the machine only changes state if it is powered correctly.
			-- The machine will automatically shut down if disconnected from power in some fashion.
			local meta = minetest.env:get_meta(pos)
			local eu_input = meta:get_int("LV_EU_input")
			local state = meta:get_int("state")
			local next_state = state

			-- Machine information
			local machine_name = "Grinder"
			local machine_node = "technic:grinder"
			local machine_state_demand = { 50, 300 }

			-- Setup meta data if it does not exist. state is used as an indicator of this
			if state == 0 then
			meta:set_int("state", 1)
			meta:set_int("LV_EU_demand", machine_state_demand[1])
			meta:set_int("LV_EU_input", 0)
			return
			end

			-- Power off automatically if no longer connected to a switching station
			technic.switching_station_timeout_count(pos, "LV")

			-- State machine
			if eu_input == 0 then
			-- unpowered - go idle
			hacky_swap_node(pos, machine_node)
			meta:set_string("infotext", machine_name.." Unpowered")
			next_state = 1
			elseif eu_input == machine_state_demand[state] then
			-- Powered - do the state specific actions

			local inv = meta:get_inventory()
			local empty = inv:is_empty("src")

			if state == 1 then
			hacky_swap_node(pos, machine_node)
			meta:set_string("infotext", machine_name.." Idle")

			local result = technic.get_grinder_recipe(inv:get_stack("src", 1))
			if not empty and result and inv:room_for_item("dst",result) then
			meta:set_int("src_time", 0)
			next_state = 2
			end

			elseif state == 2 then
			hacky_swap_node(pos, machine_node.."_active")
			meta:set_string("infotext", machine_name.." Active")

			if empty then
			next_state = 1
			else
			meta:set_int("src_time", meta:get_int("src_time") + 1)
			if meta:get_int("src_time") == 4 then -- 4 ticks per output
			-- check if there's room for output in "dst" list
			local result = technic.get_grinder_recipe(inv:get_stack("src", 1))

			meta:set_int("src_time", 0)
			if inv:room_for_item("dst",result) then
			-- take stuff from "src" list
			srcstack = inv:get_stack("src", 1)
			srcstack:take_item()
			inv:set_stack("src", 1, srcstack)
			-- Put result in "dst" list
			inv:add_item("dst", result)
			else
			-- all full: go idle
			next_state = 1
			end
			end
			end
			end
			end
			-- Change state?
			if next_state ~= state then
			meta:set_int("LV_EU_demand", machine_state_demand[next_state])
			meta:set_int("state", next_state)
			end
			end
			})

			technic.register_LV_machine ("technic:grinder","RE")
			technic.register_LV_machine ("technic:grinder_active","RE")