325 lines
8.4 KiB
Lua
325 lines
8.4 KiB
Lua
--[[
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TechAge
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=======
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Copyright (C) 2019 Joachim Stolberg
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GPL v3
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See LICENSE.txt for more information
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TA2 Steam Engine Boiler
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]]--
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-- for lazy programmers
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local P = minetest.string_to_pos
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local M = minetest.get_meta
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local S = techage.S
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local CYCLE_TIME = 4
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local STANDBY_TICKS = 2
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local COUNTDOWN_TICKS = 2
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local HEAT_STEP = 10
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local WATER_CONSUMPTION = 0.5
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local MAX_WATER = 10
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local Pipe = techage.SteamPipe
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local Water = {
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["bucket:bucket_river_water"] = true,
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["bucket:bucket_water"] = true,
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["bucket:bucket_empty"] = true,
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}
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local function formspec(self, pos, mem)
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local temp = mem.temperature or 20
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local ratio = mem.power_ratio or 0
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return "size[8,7]"..
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default.gui_bg..
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default.gui_bg_img..
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default.gui_slots..
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"image_button[0,0.2;1,1;techage_form_inventory.png;storage;;true;false;]"..
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"list[context;water;1,0.2;1,1;]"..
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"image_button[0,1.6;1,1;techage_form_input.png;input;;true;false;]"..
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"list[context;input;1,1.6;1,1;]"..
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"image[1,1.6;1,1;bucket_water.png]"..
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"image[1,1.6;1,1;techage_form_mask.png]"..
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"image[2,0.5;1,2;techage_form_temp_bg.png^[lowpart:"..
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temp..":techage_form_temp_fg.png]"..
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"image[7,0.5;1,2;"..techage.power.formspec_power_bar(1, ratio).."]"..
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"image_button[6,1;1,1;".. self:get_state_button_image(mem) ..";state_button;]"..
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"button[3,1.5;2,1;update;"..S("Update").."]"..
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"list[current_player;main;0,3;8,4;]"..
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"listring[current_name;water]"..
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"listring[current_player;main]"..
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default.get_hotbar_bg(0, 3)
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end
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local function can_start(pos, mem, state)
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return mem.temperature and mem.temperature > 80
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end
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local function start_node(pos, mem, state)
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mem.running = true
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mem.power_ratio = 0
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end
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local function stop_node(pos, mem, state)
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mem.running = false
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mem.power_ratio = 0
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end
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local State = techage.NodeStates:new({
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node_name_passive = "techage:boiler2",
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cycle_time = CYCLE_TIME,
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standby_ticks = STANDBY_TICKS,
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has_item_meter = false,
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formspec_func = formspec,
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can_start = can_start,
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start_node = start_node,
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stop_node = stop_node,
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})
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local function get_water(pos)
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local inv = M(pos):get_inventory()
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local items = inv:get_stack("water", 1)
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if items:get_count() > 0 then
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local taken = items:take_item(1)
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inv:set_stack("water", 1, items)
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return true
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end
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return false
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end
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local function water_temperature(pos, mem)
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mem.temperature = mem.temperature or 20
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if mem.fire_trigger then
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mem.temperature = math.min(mem.temperature + HEAT_STEP, 100)
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else
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mem.temperature = math.max(mem.temperature - HEAT_STEP, 20)
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end
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mem.fire_trigger = false
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if mem.water_level == 0 then
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if get_water(pos) then
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mem.water_level = 100
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else
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mem.temperature = 20
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end
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end
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return mem.temperature
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end
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local function steaming(pos, mem, temp)
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local wc = WATER_CONSUMPTION * (mem.power_ratio or 1)
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mem.water_level = math.max((mem.water_level or 0) - wc, 0)
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if temp >= 80 then
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if mem.running then
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State:keep_running(pos, mem, COUNTDOWN_TICKS)
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else
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State:fault(pos, mem)
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end
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else
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State:stop(pos, mem)
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minetest.get_node_timer(pos):start(CYCLE_TIME)
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end
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end
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local function node_timer(pos, elapsed)
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local mem = tubelib2.get_mem(pos)
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local temp = water_temperature(pos, mem)
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if State:is_active(mem) then
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steaming(pos, mem, temp)
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end
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return mem.temperature > 20
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end
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local function on_receive_fields(pos, formname, fields, player)
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if minetest.is_protected(pos, player:get_player_name()) then
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return
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end
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local mem = tubelib2.get_mem(pos)
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mem.temperature = mem.temperature or 20
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State:state_button_event(pos, mem, fields)
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if fields.update then
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if mem.temperature > 20 then
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minetest.get_node_timer(pos):start(CYCLE_TIME)
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end
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M(pos):set_string("formspec", formspec(State, pos, mem))
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end
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end
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local function on_rightclick(pos)
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local mem = tubelib2.get_mem(pos)
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M(pos):set_string("formspec", formspec(State, pos, mem))
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end
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local function can_dig(pos, player)
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local inv = M(pos):get_inventory()
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local mem = tubelib2.get_mem(pos)
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return inv:is_empty("input") and not mem.running
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end
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local function move_to_water(pos)
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local inv = M(pos):get_inventory()
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local water_stack = inv:get_stack("water", 1)
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local input_stack = inv:get_stack("input", 1)
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if input_stack:get_name() == "bucket:bucket_empty" then
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if input_stack:get_count() == 1 then
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if water_stack:get_count() > 0 then
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water_stack:set_count(water_stack:get_count() - 1)
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input_stack = ItemStack("bucket:bucket_water")
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inv:set_stack("water", 1, water_stack)
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inv:set_stack("input", 1, input_stack)
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end
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end
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elseif water_stack:get_count() < MAX_WATER then
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if water_stack:get_count() == 0 then
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water_stack = ItemStack("default:water_source")
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else
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water_stack:set_count(water_stack:get_count() + 1)
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end
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input_stack = ItemStack("bucket:bucket_empty")
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inv:set_stack("water", 1, water_stack)
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inv:set_stack("input", 1, input_stack)
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end
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end
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local function allow_metadata_inventory_put(pos, listname, index, stack, player)
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if minetest.is_protected(pos, player:get_player_name()) then
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return 0
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end
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if listname == "input" and Water[stack:get_name()] then
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return stack:get_count()
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end
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return 0
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end
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local function allow_metadata_inventory_take(pos, listname, index, stack, player)
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if minetest.is_protected(pos, player:get_player_name()) then
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return 0
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end
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if listname == "input" then
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return stack:get_count()
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end
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return 0
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end
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minetest.register_node("techage:boiler1", {
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description = S("TA2 Boiler Base"),
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tiles = {"techage_boiler.png"},
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drawtype = "mesh",
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mesh = "techage_boiler.obj",
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selection_box = {
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type = "fixed",
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fixed = {-8/32, -16/32, -8/32, 8/32, 16/32, 8/32},
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},
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groups = {cracky=1},
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on_rotate = screwdriver.disallow,
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is_ground_content = false,
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sounds = default.node_sound_metal_defaults(),
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})
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-- boiler2: Main part, needed as generator
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minetest.register_node("techage:boiler2", {
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description = S("TA2 Boiler Top"),
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tiles = {"techage_boiler2.png"},
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drawtype = "mesh",
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mesh = "techage_boiler.obj",
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selection_box = {
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type = "fixed",
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fixed = {-10/32, -48/32, -10/32, 10/32, 16/32, 10/32},
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},
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can_dig = can_dig,
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on_timer = node_timer,
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allow_metadata_inventory_put = allow_metadata_inventory_put,
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allow_metadata_inventory_take = allow_metadata_inventory_take,
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allow_metadata_inventory_move = function(pos) return 0 end,
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on_receive_fields = on_receive_fields,
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on_rightclick = on_rightclick,
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on_construct = function(pos)
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tubelib2.init_mem(pos)
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local inv = M(pos):get_inventory()
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inv:set_size('water', 1)
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inv:set_size('input', 1)
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end,
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after_place_node = function(pos, placer)
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local mem = tubelib2.get_mem(pos)
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State:node_init(pos, mem, "")
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local node = minetest.get_node({x=pos.x, y=pos.y-1, z=pos.z})
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if node.name == "techage:boiler1" then
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on_rightclick(pos)
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end
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end,
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on_metadata_inventory_put = function(pos)
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minetest.after(0.5, move_to_water, pos)
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end,
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groups = {cracky=1},
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on_rotate = screwdriver.disallow,
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is_ground_content = false,
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sounds = default.node_sound_metal_defaults(),
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})
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techage.power.register_node({"techage:boiler2"}, {
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conn_sides = {"U"},
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power_network = Pipe,
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})
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techage.register_node({"techage:boiler2"}, {
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on_transfer = function(pos, in_dir, topic, payload)
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if topic == "trigger" then
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local mem = tubelib2.get_mem(pos)
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mem.fire_trigger = true
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if not minetest.get_node_timer(pos):is_started() then
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minetest.get_node_timer(pos):start(CYCLE_TIME)
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end
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if mem.running then
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mem.power_ratio = techage.transfer(pos, 6, "trigger", nil, Pipe, {
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"techage:cylinder", "techage:cylinder_on"}) or 0
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return mem.power_ratio
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else
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return 0
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end
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end
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end
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})
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minetest.register_craft({
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output = "techage:boiler1",
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recipe = {
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{"techage:iron_ingot", "", "techage:iron_ingot"},
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{"default:bronze_ingot", "", "default:bronze_ingot"},
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{"techage:iron_ingot", "default:bronze_ingot", "techage:iron_ingot"},
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},
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})
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minetest.register_craft({
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output = "techage:boiler2",
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recipe = {
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{"techage:iron_ingot", "techage:steam_pipeS", "techage:iron_ingot"},
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{"default:bronze_ingot", "", "default:bronze_ingot"},
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{"techage:iron_ingot", "", "techage:iron_ingot"},
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},
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})
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techage.register_entry_page("ta2", "boiler1",
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S("TA2 Boiler Base"),
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S("Part of the steam engine. Has to be placed on top of the Firebox and filled with water.@n"..
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"(see Steam Engine)"), "techage:boiler1")
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techage.register_entry_page("ta2", "boiler2",
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S("TA2 Boiler Top"),
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S("Part of the steam engine. Has to be placed on top of TA2 Boiler Base.@n(see Steam Engine)"),
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"techage:boiler2")
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