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-- A Hydro Turbine produces MV EUs by exploiting flowing water across it
-- It is a MV EU supplier and fairly high yield (max 1800EUs)
local S = technic.getter
local cable_entry = "^technic_cable_connection_overlay.png"
minetest.register_alias("hydro_turbine", "technic:hydro_turbine")
minetest.register_craft({
output = 'technic:hydro_turbine',
recipe = {
{'technic:stainless_steel_ingot', 'technic:water_mill', 'technic:stainless_steel_ingot'},
{'technic:water_mill', 'technic:mv_transformer', 'technic:water_mill'},
{'technic:stainless_steel_ingot', 'technic:mv_cable', 'technic:stainless_steel_ingot'},
}
})
local function get_water_flow(pos)
local node = minetest.get_node(pos)
if minetest.get_item_group(node.name, "water") == 3 and string.find(node.name, "flowing") then
return node.param2 -- returns approx. water flow, if any
end
return 0
end
---
-- 10 times better than LV hydro because of 2 extra water mills and 4 stainless steel, a transformer and whatnot ;P.
-- Man hydro turbines are tough and long lasting. So, give it some value :)
local run = function(pos, node)
local meta = minetest.get_meta(pos)
local water_flow = 0
local production_level = 0
local eu_supply = 0
local max_output = 40 * 45 -- Generates 1800EU/s
local positions = {
{x=pos.x+1, y=pos.y, z=pos.z},
{x=pos.x-1, y=pos.y, z=pos.z},
{x=pos.x, y=pos.y, z=pos.z+1},
{x=pos.x, y=pos.y, z=pos.z-1},
}
for _, p in pairs(positions) do
water_flow = water_flow + get_water_flow(p)
end
eu_supply = math.min(40 * water_flow, max_output)
production_level = math.floor(100 * eu_supply / max_output)
meta:set_int("MV_EU_supply", eu_supply)
meta:set_string("infotext",
S("Hydro %s Generator"):format("MV").." ("..production_level.."%)")
if production_level > 0 and
minetest.get_node(pos).name == "technic:hydro_turbine" then
technic.swap_node(pos, "technic:hydro_turbine_active")
meta:set_int("MV_EU_supply", 0)
return
end
if production_level == 0 then
technic.swap_node(pos, "technic:hydro_turbine")
end
end
minetest.register_node("technic:hydro_turbine", {
description = S("Hydro %s Generator"):format("MV"),
tiles = {
"technic_hydro_turbine_top.png",
"technic_machine_bottom.png"..cable_entry,
"technic_hydro_turbine_side.png",
"technic_hydro_turbine_side.png",
"technic_hydro_turbine_side.png",
"technic_hydro_turbine_side.png"
},
paramtype2 = "facedir",
groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
technic_machine=1, technic_mv=1},
legacy_facedir_simple = true,
sounds = default.node_sound_wood_defaults(),
on_construct = function(pos)
local meta = minetest.get_meta(pos)
meta:set_string("infotext", S("Hydro %s Generator"):format("MV"))
meta:set_int("MV_EU_supply", 0)
end,
technic_run = run,
})
minetest.register_node("technic:hydro_turbine_active", {
description = S("Hydro %s Generator"):format("MV"),
tiles = {"technic_hydro_turbine_top_active.png", "technic_machine_bottom.png",
"technic_hydro_turbine_side.png", "technic_hydro_turbine_side.png",
"technic_hydro_turbine_side.png", "technic_hydro_turbine_side.png"},
paramtype2 = "facedir",
groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
technic_machine=1, technic_mv=1, not_in_creative_inventory=1},
legacy_facedir_simple = true,
sounds = default.node_sound_wood_defaults(),
drop = "technic:hydro_turbine",
technic_run = run,
technic_disabled_machine_name = "technic:hydro_turbine",
})
technic.register_machine("MV", "technic:hydro_turbine", technic.producer)
technic.register_machine("MV", "technic:hydro_turbine_active", technic.producer)
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