techage/coal_power_station/firebox.lua

245 lines
6.1 KiB
Lua

--[[
TechAge
=======
Copyright (C) 2019 Joachim Stolberg
GPL v3
See LICENSE.txt for more information
TA3 Coal Power Station Firebox
]]--
-- for lazy programmers
local P = minetest.string_to_pos
local M = minetest.get_meta
local S = techage.S
local firebox = techage.firebox
local CYCLE_TIME = 2
local BURN_CYCLE_FACTOR = 0.5
local function firehole(pos, on)
local param2 = minetest.get_node(pos).param2
local pos2 = techage.get_pos(pos, 'F')
if on == true then
minetest.swap_node(pos2, {name="techage:coalfirehole_on", param2 = param2})
elseif on == false then
minetest.swap_node(pos2, {name="techage:coalfirehole", param2 = param2})
else
minetest.swap_node(pos2, {name="air"})
end
end
local function node_timer(pos, elapsed)
local mem = tubelib2.get_mem(pos)
if mem.running then
-- trigger generator and provide power ratio 0..1
local ratio = techage.transfer(
{x=pos.x, y=pos.y+2, z=pos.z},
nil, -- outdir
"trigger", -- topic
(mem.power_level or 4)/4.0, -- payload
nil, -- network
{"techage:coalboiler_top"} -- nodenames
)
ratio = math.max((ratio or 0.02), 0.02)
mem.burn_cycles = (mem.burn_cycles or 0) - ratio
if mem.burn_cycles <= 0 then
local taken = firebox.get_fuel(pos)
if taken then
mem.burn_cycles = (firebox.Burntime[taken:get_name()] or 1) / CYCLE_TIME * BURN_CYCLE_FACTOR
mem.burn_cycles_total = mem.burn_cycles
else
mem.running = false
firehole(pos, false)
M(pos):set_string("formspec", firebox.formspec(mem))
return false
end
end
return true
end
end
local function start_firebox(pos, mem)
if not mem.running then
mem.running = true
node_timer(pos, 0)
firehole(pos, true)
minetest.get_node_timer(pos):start(CYCLE_TIME)
end
end
minetest.register_node("techage:coalfirebox", {
description = S("TA3 Power Station Firebox"),
inventory_image = "techage_coal_boiler_inv.png",
tiles = {"techage_coal_boiler_mesh_top.png"},
drawtype = "mesh",
mesh = "techage_boiler_large.obj",
selection_box = {
type = "fixed",
fixed = {-13/32, -16/32, -13/32, 13/32, 16/32, 13/32},
},
paramtype2 = "facedir",
on_rotate = screwdriver.disallow,
groups = {cracky=2},
is_ground_content = false,
sounds = default.node_sound_stone_defaults(),
on_timer = node_timer,
can_dig = firebox.can_dig,
allow_metadata_inventory_put = firebox.allow_metadata_inventory_put,
allow_metadata_inventory_take = firebox.allow_metadata_inventory_take,
on_receive_fields = firebox.on_receive_fields,
on_rightclick = firebox.on_rightclick,
on_construct = function(pos)
local mem = tubelib2.init_mem(pos)
techage.add_node(pos, "techage:coalfirebox")
mem.running = false
mem.burn_cycles = 0
mem.power_level = 4
local meta = M(pos)
meta:set_string("formspec", firebox.formspec(mem))
local inv = meta:get_inventory()
inv:set_size('fuel', 1)
firehole(pos, false)
end,
on_destruct = function(pos)
firehole(pos, nil)
end,
on_metadata_inventory_put = function(pos, listname, index, stack, player)
local mem = tubelib2.get_mem(pos)
start_firebox(pos, mem)
M(pos):set_string("formspec", firebox.formspec(mem))
end,
})
minetest.register_node("techage:coalfirehole", {
description = S("TA3 Coal Power Station Firebox"),
tiles = {
-- up, down, right, left, back, front
"techage_coal_boiler.png",
"techage_coal_boiler.png",
"techage_coal_boiler.png",
"techage_coal_boiler.png",
"techage_coal_boiler.png",
"techage_coal_boiler.png^techage_appl_firehole.png",
},
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{-6/16, -6/16, 6/16, 6/16, 6/16, 12/16},
},
},
paramtype2 = "facedir",
pointable = false,
diggable = false,
is_ground_content = false,
groups = {not_in_creative_inventory=1},
})
minetest.register_node("techage:coalfirehole_on", {
description = S("TA3 Coal Power Station Firebox"),
tiles = {
-- up, down, right, left, back, front
"techage_coal_boiler.png^[colorize:black:80",
"techage_coal_boiler.png^[colorize:black:80",
"techage_coal_boiler.png^[colorize:black:80",
"techage_coal_boiler.png^[colorize:black:80",
"techage_coal_boiler.png^[colorize:black:80",
{
image = "techage_coal_boiler4.png^[colorize:black:80^techage_appl_firehole4.png",
backface_culling = false,
animation = {
type = "vertical_frames",
aspect_w = 32,
aspect_h = 32,
length = 0.4,
},
},
},
drawtype = "nodebox",
node_box = {
type = "fixed",
fixed = {
{-6/16, -6/16, 6/16, 6/16, 6/16, 12/16},
},
},
paramtype2 = "facedir",
light_source = 8,
pointable = false,
diggable = false,
is_ground_content = false,
groups = {not_in_creative_inventory=1},
})
techage.register_node({"techage:coalfirebox"}, {
on_pull_item = function(pos, in_dir, num)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
return techage.get_items(inv, "fuel", num)
end,
on_push_item = function(pos, in_dir, stack)
if firebox.Burntime[stack:get_name()] then
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
local mem = tubelib2.get_mem(pos)
start_firebox(pos, mem)
return techage.put_items(inv, "fuel", stack)
end
return false
end,
on_unpull_item = function(pos, in_dir, stack)
local meta = minetest.get_meta(pos)
local inv = meta:get_inventory()
return techage.put_items(inv, "fuel", stack)
end,
on_recv_message = function(pos, src, topic, payload)
local mem = tubelib2.get_mem(pos)
if topic == "state" then
if mem.running then
return "running"
else
return "stopped"
end
elseif topic == "fuel" then
local inv = M(pos):get_inventory()
local stack = inv:get_stack("fuel", 1)
return stack:get_count()
else
return "unsupported"
end
end,
})
minetest.register_craft({
output = "techage:coalfirebox",
recipe = {
{'default:stone', 'default:stone', 'default:stone'},
{'default:steel_ingot', '', 'default:steel_ingot'},
{'default:stone', 'default:stone', 'default:stone'},
},
})
minetest.register_lbm({
label = "[techage] Power Station firebox",
name = "techage:steam_engine",
nodenames = {"techage:coalfirebox"},
run_at_every_load = true,
action = function(pos, node)
minetest.get_node_timer(pos):start(CYCLE_TIME)
end
})