-- A water mill produces LV EUs by exploiting flowing water across it
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-- It is a LV EU supplyer and fairly low yield (max 180EUs)
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-- It is a little over half as good as the thermal generator.
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local S = technic.getter
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local cable_entry = "^technic_cable_connection_overlay.png"
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minetest.register_alias("water_mill", "technic:water_mill")
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minetest.register_craft({
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output = 'technic:water_mill',
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recipe = {
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{'technic:marble', 'default:diamond', 'technic:marble'},
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{'group:wood', 'technic:machine_casing', 'group:wood'},
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{'technic:marble', 'technic:lv_cable', 'technic:marble'},
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}
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})
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local function check_node_around_mill(pos)
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local node = minetest.get_node(pos)
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if node.name == "default:water_flowing"
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or node.name == "default:river_water_flowing" then
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return node.param2 -- returns approx. water flow, if any
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end
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return false
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end
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local run = function(pos, node)
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local meta = minetest.get_meta(pos)
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local water_flow = 0
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local production_level = 0
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local eu_supply = 0
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local max_output = 4 * 45 -- keeping it around 180, little more than previous 150 :)
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local positions = {
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{x=pos.x+1, y=pos.y, z=pos.z},
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{x=pos.x-1, y=pos.y, z=pos.z},
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{x=pos.x, y=pos.y, z=pos.z+1},
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{x=pos.x, y=pos.y, z=pos.z-1},
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}
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for _, p in pairs(positions) do
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local check = check_node_around_mill(p)
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if check then
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water_flow = water_flow + check
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end
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end
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eu_supply = math.min(4 * water_flow, max_output)
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production_level = math.floor(100 * eu_supply / max_output)
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meta:set_int("LV_EU_supply", eu_supply)
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meta:set_string("infotext",
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S("Hydro %s Generator"):format("LV").." ("..production_level.."%)")
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if production_level > 0 and
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minetest.get_node(pos).name == "technic:water_mill" then
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technic.swap_node (pos, "technic:water_mill_active")
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meta:set_int("LV_EU_supply", 0)
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return
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end
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if production_level == 0 then
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technic.swap_node(pos, "technic:water_mill")
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end
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end
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minetest.register_node("technic:water_mill", {
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description = S("Hydro %s Generator"):format("LV"),
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tiles = {
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"technic_water_mill_top.png",
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"technic_machine_bottom.png"..cable_entry,
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"technic_water_mill_side.png",
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"technic_water_mill_side.png",
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"technic_water_mill_side.png",
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"technic_water_mill_side.png"
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},
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paramtype2 = "facedir",
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groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
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technic_machine=1, technic_lv=1},
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legacy_facedir_simple = true,
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sounds = default.node_sound_wood_defaults(),
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on_construct = function(pos)
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", S("Hydro %s Generator"):format("LV"))
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meta:set_int("LV_EU_supply", 0)
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end,
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technic_run = run,
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})
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minetest.register_node("technic:water_mill_active", {
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description = S("Hydro %s Generator"):format("LV"),
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tiles = {"technic_water_mill_top_active.png", "technic_machine_bottom.png",
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"technic_water_mill_side.png", "technic_water_mill_side.png",
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"technic_water_mill_side.png", "technic_water_mill_side.png"},
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paramtype2 = "facedir",
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groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
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technic_machine=1, technic_lv=1, not_in_creative_inventory=1},
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legacy_facedir_simple = true,
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sounds = default.node_sound_wood_defaults(),
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drop = "technic:water_mill",
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technic_run = run,
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technic_disabled_machine_name = "technic:water_mill",
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})
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technic.register_machine("LV", "technic:water_mill", technic.producer)
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technic.register_machine("LV", "technic:water_mill_active", technic.producer)
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