technic/technic/machines/HV/quarry.lua

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Lua
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2013-07-17 21:34:35 +02:00
minetest.register_craft({
recipe = {
{"default:steelblock", "pipeworks:filter", "default:steelblock"},
{"default:steelblock", "technic:motor", "default:steelblock"},
{"default:steelblock", "technic:diamond_drill_head", "default:steelblock"}},
output = "technic:quarry",
})
local quarry_dig_above_nodes = 3 -- How far above the quarry we will dig nodes
local quarry_max_depth = 100
local function get_quarry_formspec(size)
return "size[3,1.5]"..
"field[1,0.5;2,1;size;Radius;"..size.."]"..
"button[0,1;3,1;toggle;Enable/Disable]"
end
local function quarry_receive_fields(pos, formname, fields, sender)
local meta = minetest.get_meta(pos)
local size = tonumber(fields.size)
if fields.toggle then
if meta:get_int("enabled") == 0 then
meta:set_int("enabled", 1)
else
meta:set_int("enabled", 0)
end
end
-- Smallest size is 2. Anything less is asking for trouble.
-- Largest is 8. It is a matter of pratical node handling.
size = math.max(size, 2)
size = math.min(size, 8)
if meta:get_int("size") ~= size then
meta:set_int("size", size)
meta:set_string("formspec", get_quarry_formspec(size))
end
end
local function get_quarry_center(pos, size)
local node = minetest.get_node(pos)
local back_dir = minetest.facedir_to_dir(node.param2)
local relative_center = vector.multiply(back_dir, size + 1)
local center = vector.add(pos, relative_center)
return center
end
local function gen_next_digpos(center, digpos, size)
digpos.x = digpos.x + 1
if digpos.x > center.x + size then
digpos.x = center.x - size
digpos.z = digpos.z + 1
end
if digpos.z > center.z + size then
digpos.x = center.x - size
digpos.z = center.z - size
digpos.y = digpos.y - 1
end
end
local function find_next_digpos(data, area, center, dig_y, size)
local c_air = minetest.get_content_id("air")
for y = center.y + quarry_dig_above_nodes, dig_y - 1, -1 do
for z = center.z - size, center.z + size do
for x = center.x - size, center.x + size do
if data[area:index(x, y, z)] ~= c_air then
return vector.new(x, y, z)
end
end
end
end
end
local function quarry_dig(pos, center, size)
local meta = minetest.get_meta(pos)
local drops = {}
local dig_y = meta:get_int("dig_y")
local owner = meta:get_int("owner")
local vm = VoxelManip()
local p1 = vector.new(
center.x - size,
center.y + quarry_dig_above_nodes,
center.z - size)
local p2 = vector.new(
center.x + size,
dig_y - 1, -- One node lower in case we have finished the current layer
center.z + size)
local e1, e2 = vm:read_from_map(p1, p2)
local area = VoxelArea:new({MinEdge=e1, MaxEdge=e2})
local data = vm:get_data()
local digpos = find_next_digpos(data, area, center, dig_y, size)
if digpos then
if digpos.y < pos.y - quarry_max_depth then
meta:set_int("dig_y", digpos.y)
return drops
end
if minetest.is_protected and minetest.is_protected(digpos, owner) then
meta:set_int("enabled", 0)
return
end
dig_y = digpos.y
local node = minetest.get_node(digpos)
drops = minetest.get_node_drops(node.name, "")
minetest.dig_node(digpos)
if minetest.get_node(digpos).name == node.name then
-- We tried to dig something undigable like a
-- filled chest. Notice that we check for a node
-- change, not for air. This is so that we get drops
-- from things like concrete posts with platforms,
-- which turn into regular concrete posts when dug.
drops = {}
end
elseif not (dig_y < pos.y - quarry_max_depth) then
dig_y = dig_y - 16
end
meta:set_int("dig_y", dig_y)
return drops
end
local function send_items(items, pos, node)
for _, item in pairs(items) do
local tube_item = tube_item(vector.new(pos), item)
tube_item:get_luaentity().start_pos = vector.new(pos)
tube_item:setvelocity(vector.new(0, 1, 0))
tube_item:setacceleration({x=0, y=0, z=0})
end
end
minetest.register_node("technic:quarry", {
description = "Quarry",
tiles = {"default_steel_block.png", "default_steel_block.png",
"default_steel_block.png", "default_steel_block.png",
"default_steel_block.png^default_tool_mesepick.png", "default_steel_block.png"},
paramtype2 = "facedir",
groups = {cracky=2, tubedevice=1},
tube = {
connect_sides = {top = 1},
},
on_construct = function(pos)
local size = 4
local meta = minetest.get_meta(pos)
meta:set_string("infotext", "Quarry")
meta:set_string("formspec", get_quarry_formspec(4))
meta:set_int("size", size)
meta:set_int("dig_y", pos.y)
end,
after_place_node = function(pos, placer, itemstack)
local meta = minetest.get_meta(pos)
meta:set_string("owner", placer:get_player_name())
tube_scanforobjects(pos)
end,
after_dig_node = tube_scanforobjects,
on_receive_fields = quarry_receive_fields,
})
minetest.register_abm({
nodenames = {"technic:quarry"},
interval = 1,
chance = 1,
action = function(pos, node, active_object_count, active_object_count_wider)
local meta = minetest.get_meta(pos)
local size = meta:get_int("size")
local eu_input = meta:get_int("HV_EU_input")
local demand = 10000
local center = get_quarry_center(pos, size)
local dig_y = meta:get_int("dig_y")
technic.switching_station_timeout_count(pos, "HV")
if meta:get_int("enabled") == 0 then
meta:set_string("infotext", "Quarry Disabled")
meta:set_int("HV_EU_demand", 0)
return
end
if eu_input < demand then
meta:set_string("infotext", "Quarry Unpowered")
elseif eu_input >= demand then
meta:set_string("infotext", "Quarry Active")
local items = quarry_dig(pos, center, size)
send_items(items, pos, node)
if dig_y < pos.y - quarry_max_depth then
meta:set_string("infotext", "Quarry Finished")
end
end
meta:set_int("HV_EU_demand", demand)
end
})
technic.register_machine("HV", "technic:quarry", technic.receiver)