techage/steam_engine/flywheel.lua

239 lines
6.3 KiB
Lua

--[[
TechAge
=======
Copyright (C) 2019 Joachim Stolberg
LGPLv2.1+
See LICENSE.txt for more information
TA2 Steam Engine Flywheel
]]--
-- for lazy programmers
local P = minetest.string_to_pos
local M = minetest.get_meta
local S = techage.S
local STANDBY_TICKS = 4
local COUNTDOWN_TICKS = 4
local CYCLE_TIME = 2
local PWR_CAPA = 25
local Axle = techage.Axle
local provide_power = techage.power.provide_power
local power_switched = techage.power.power_switched
local function formspec(self, pos, mem)
return "size[8,7]"..
default.gui_bg..
default.gui_bg_img..
default.gui_slots..
"image[6,0.5;1,2;"..techage.power.formspec_power_bar(PWR_CAPA, mem.provided).."]"..
"image_button[5,1;1,1;".. self:get_state_button_image(mem) ..";state_button;]"..
"button[2,1.5;2,1;update;"..S("Update").."]"..
"list[current_player;main;0,3;8,4;]"..
default.get_hotbar_bg(0, 3)
end
local function can_start(pos, mem, state)
return (mem.triggered or 0) > 0 -- by means of firebox
end
local function start_node(pos, mem, state)
mem.generating = true -- needed for power distribution
techage.switch_axles(pos, true)
minetest.get_node_timer(pos):start(CYCLE_TIME)
mem.handle = minetest.sound_play("techage_steamengine", {
pos = pos,
gain = 0.5,
max_hear_distance = 10})
power_switched(pos)
end
local function stop_node(pos, mem, state)
mem.generating = false
techage.switch_axles(pos, false)
minetest.get_node_timer(pos):stop()
if mem.handle then
minetest.sound_stop(mem.handle)
mem.handle = nil
end
power_switched(pos)
mem.provided = 0
end
local State = techage.NodeStates:new({
node_name_passive = "techage:flywheel",
node_name_active = "techage:flywheel_on",
cycle_time = CYCLE_TIME,
standby_ticks = STANDBY_TICKS,
formspec_func = formspec,
can_start = can_start,
start_node = start_node,
stop_node = stop_node,
})
local function node_timer(pos, elapsed)
local mem = tubelib2.get_mem(pos)
mem.triggered = mem.triggered or 0
if mem.triggered > 0 and mem.generating then
mem.provided = provide_power(pos, PWR_CAPA)
mem.triggered = mem.triggered - 1
State:keep_running(pos, mem, COUNTDOWN_TICKS)
mem.handle = minetest.sound_play("techage_steamengine", {
pos = pos,
gain = 0.5,
max_hear_distance = 10})
elseif mem.generating then -- trigger missing
State:stop(pos, mem)
mem.generating = 0
mem.provided = 0
techage.transfer(pos, "L", "stop", nil, nil, {
"techage:cylinder_on"})
else
mem.provided = 0
end
return State:is_active(mem)
end
local function on_receive_fields(pos, formname, fields, player)
if minetest.is_protected(pos, player:get_player_name()) then
return
end
local mem = tubelib2.get_mem(pos)
State:state_button_event(pos, mem, fields)
if fields.update then
M(pos):set_string("formspec", formspec(State, pos, mem))
end
end
local function on_rightclick(pos)
local mem = tubelib2.get_mem(pos)
M(pos):set_string("formspec", formspec(State, pos, mem))
if mem.generating then
minetest.get_node_timer(pos):start(CYCLE_TIME)
end
end
minetest.register_node("techage:flywheel", {
description = S("TA2 Flywheel"),
tiles = {
-- up, down, right, left, back, front
"techage_filling_ta2.png^techage_frame_ta2.png",
"techage_filling_ta2.png^techage_frame_ta2.png",
"techage_filling_ta2.png^techage_axle_clutch.png^techage_frame_ta2.png",
"techage_filling_ta2.png^techage_appl_open.png^techage_frame_ta2.png",
"techage_filling_ta2.png^techage_frame_ta2.png^techage_flywheel.png",
"techage_filling_ta2.png^techage_frame_ta2.png^techage_flywheel.png^[transformFX]",
},
on_construct = tubelib2.init_mem,
after_place_node = function(pos, placer)
local mem = tubelib2.get_mem(pos)
State:node_init(pos, mem, "")
on_rightclick(pos)
end,
on_receive_fields = on_receive_fields,
on_rightclick = on_rightclick,
on_timer = node_timer,
paramtype2 = "facedir",
groups = {cracky=2, crumbly=2, choppy=2},
on_rotate = screwdriver.disallow,
is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
minetest.register_node("techage:flywheel_on", {
description = S("TA2 Flywheel"),
tiles = {
-- up, down, right, left, back, front
"techage_filling_ta2.png^techage_frame_ta2.png",
"techage_filling_ta2.png^techage_frame_ta2.png",
{
image = "techage_filling4_ta2.png^techage_axle_clutch4.png^techage_frame4_ta2.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 0.6,
},
},
"techage_filling_ta2.png^techage_appl_open.png^techage_frame_ta2.png",
{
image = "techage_filling8_ta2.png^techage_frame8_ta2.png^techage_flywheel8.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1.2,
},
},
{
image = "techage_filling8_ta2.png^techage_frame8_ta2.png^techage_flywheel8.png^[transformFX]",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 1.2,
},
},
},
on_receive_fields = on_receive_fields,
on_rightclick = on_rightclick,
on_timer = node_timer,
drop = "",
paramtype2 = "facedir",
groups = {not_in_creative_inventory=1},
diggable = false,
on_rotate = screwdriver.disallow,
is_ground_content = false,
sounds = default.node_sound_wood_defaults(),
})
techage.power.register_node({"techage:flywheel", "techage:flywheel_on"}, {
conn_sides = {"R"},
power_network = Axle,
})
techage.register_node({"techage:flywheel", "techage:flywheel_on"}, {
on_transfer = function(pos, in_dir, topic, payload)
local mem = tubelib2.get_mem(pos)
if topic == "trigger" then
mem.triggered = 2
if mem.generating then
return math.max((mem.provided or PWR_CAPA) / PWR_CAPA, 0.1)
else
return 0
end
end
end
})
minetest.register_craft({
output = "techage:flywheel",
recipe = {
{"basic_materials:steel_bar", "dye:red", "default:wood"},
{"", "basic_materials:gear_steel", "techage:axle"},
{"default:wood", "techage:iron_ingot", "basic_materials:steel_bar"},
},
})
techage.register_entry_page("ta2", "flywheel",
S("TA2 Flywheel"),
S("Part of the steam engine. Has to be placed side by side with the TA2 Cylinder.@n"..
"Used to turn on/off the steam engine. Connect the Flywheel with your TA2 machines "..
"by means of Axles and Gearboxes.@n"..
"(see Steam Engine)"), "techage:flywheel")