techage/energy_storage/inlet.lua

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--[[
TechAge
=======
Copyright (C) 2019-2020 Joachim Stolberg
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AGPL v3
See LICENSE.txt for more information
TA4 Pipe Inlet
]]--
-- for lazy programmers
local P2S = function(pos) if pos then return minetest.pos_to_string(pos) end end
local S2P = minetest.string_to_pos
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local M = minetest.get_meta
local M = minetest.get_meta
local S = techage.S
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local Pipe = techage.LiquidPipe
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local function after_place_node(pos, placer, itemstack)
Pipe:after_place_node(pos)
end
local function after_dig_node(pos, oldnode, oldmetadata, digger)
Pipe:after_dig_node(pos)
end
minetest.register_node("techage:ta4_pipe_inlet", {
description = S("TA4 Pipe Inlet"),
tiles = {
-- up, down, right, left, back, front
"basic_materials_concrete_block.png",
"basic_materials_concrete_block.png",
"basic_materials_concrete_block.png",
"basic_materials_concrete_block.png",
"basic_materials_concrete_block.png^techage_tes_inlet.png",
"basic_materials_concrete_block.png^techage_tes_inlet.png",
},
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after_place_node = after_place_node,
after_dig_node = after_dig_node,
paramtype2 = "facedir", -- important!
on_rotate = screwdriver.disallow, -- important!
groups = {crumbly = 2, cracky = 2, snappy = 2},
is_ground_content = false,
sounds = default.node_sound_metal_defaults(),
})
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Pipe:add_secondary_node_names({"techage:ta4_pipe_inlet"})
local Numbers = {
shell = {
[2] = 96, -- 5x5x2 + 3x5x2 + 3x3x2 - 2
[3] = 216, -- 7x7x2 + 5x7x2 + 5x5x2 - 2
[4] = 384, -- 9x9x2 + 7x9x2 + 7x7x2 - 2
},
filling = {
[2] = 27, -- 3x3x3
[3] = 125, -- 5x5x5
[4] = 343, -- 7x7x7
}
}
local function chat(owner, text)
if owner ~= nil then
minetest.chat_send_player(owner, string.char(0x1b).."(c@#ff0000)".."[Techage] Error: "..text.."!")
end
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return text
end
local function get_radius(pos, in_dir)
local dir = tubelib2.Dir6dToVector[in_dir]
local pos2 = vector.add(pos, vector.multiply(dir, 8))
local poses = minetest.find_nodes_in_area(pos, pos2, {"techage:ta4_pipe_inlet"})
if #poses == 2 then
local radius = vector.distance(poses[1], poses[2]) / 2
if radius == 2 or radius == 3 or radius == 4 then
return radius
end
end
return 1
end
local function check_volume(pos, in_dir, owner)
local radius = get_radius(pos, in_dir)
if radius then
local dir = tubelib2.Dir6dToVector[in_dir]
local cpos = vector.add(pos, vector.multiply(dir, radius))
-- calculate size
local pos1 = {x = cpos.x - radius, y = cpos.y - radius, z = cpos.z - radius}
local pos2 = {x = cpos.x + radius, y = cpos.y + radius, z = cpos.z + radius}
local _, node_tbl = minetest.find_nodes_in_area(pos1, pos2,
{"default:gravel", "techage:ta4_pipe_inlet",
"basic_materials:concrete_block", "default:obsidian_glass",
"techage:glow_gravel"})
if node_tbl["default:obsidian_glass"] > 1 then
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return chat(owner, "one window maximum")
elseif node_tbl["default:obsidian_glass"] + node_tbl["basic_materials:concrete_block"] ~= Numbers.shell[radius] then
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return chat(owner, "wrong number of shell nodes")
elseif node_tbl["default:gravel"] + node_tbl["techage:glow_gravel"] ~= Numbers.filling[radius] then
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return chat(owner, "wrong number of gravel nodes")
end
else
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return chat(owner, "wrong diameter (should be 5, 7, or 9)")
end
return true
end
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-- provide position behind the obsidian_glass
local function check_window(pos, in_dir)
local radius = get_radius(pos, in_dir)
if radius then
local dir = tubelib2.Dir6dToVector[in_dir]
local cpos = vector.add(pos, vector.multiply(dir, radius))
-- calculate size
local pos1 = {x = cpos.x - radius, y = cpos.y - radius, z = cpos.z - radius}
local pos2 = {x = cpos.x + radius, y = cpos.y + radius, z = cpos.z + radius}
local poses,_ = minetest.find_nodes_in_area(pos1, pos2, {"default:obsidian_glass"})
if #poses == 1 then
local ndir = vector.direction(poses[1], cpos)
ndir = vector.normalize(ndir)
local npos = vector.add(poses[1], ndir)
return npos
end
end
end
-- for logical communication
techage.register_node({"techage:ta4_pipe_inlet"}, {
on_transfer = function(pos, in_dir, topic, payload)
if topic == "diameter" then
return get_radius(pos, in_dir) * 2 - 1
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elseif topic == "integrity" then
return check_volume(pos, in_dir, payload)
elseif topic == "volume" then
return check_volume(pos, in_dir, payload)
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elseif topic == "window" then
return check_window(pos, in_dir)
end
return false
end
})
minetest.register_craft({
type = 'shapeless',
output = "techage:ta4_pipe_inlet",
recipe = {"basic_materials:concrete_block", "techage:ta4_pipeS"},
})