| | |
| | | minetest.swap_node = minetest.swap_node or function(pos, node) |
| | | local oldmeta = minetest.get_meta(pos):to_table() |
| | | minetest.set_node(pos, node) |
| | | minetest.get_meta(pos):from_table(oldmeta) |
| | | local digit_sep_esc |
| | | do |
| | | local sep = technic.config:get("digit_separator") |
| | | sep = tonumber(sep) and string.char(sep) or sep or " " |
| | | -- Escape for gsub |
| | | for magic in ("().%+-*?[^$"):gmatch(".") do |
| | | if sep == magic then |
| | | sep = "%"..sep |
| | | end |
| | | end |
| | | digit_sep_esc = sep |
| | | end |
| | | |
| | | -- Only changes name, keeps other params |
| | | |
| | | function technic.pretty_num(num) |
| | | local str, k = tostring(num), nil |
| | | repeat |
| | | str, k = str:gsub("^(-?%d+)(%d%d%d)", "%1"..digit_sep_esc.."%2") |
| | | until k == 0 |
| | | return str |
| | | end |
| | | |
| | | |
| | | --- Same as minetest.swap_node, but only changes name |
| | | -- and doesn't re-set if already set. |
| | | function technic.swap_node(pos, name) |
| | | local node = minetest.get_node(pos) |
| | | if node.name ~= name then |
| | | node.name = name |
| | | minetest.swap_node(pos, node) |
| | | end |
| | | return node.name |
| | | end |
| | | |
| | | |
| | | --- Fully charge RE chargeable item. |
| | | -- Must be defined early to reference in item definitions. |
| | | function technic.refill_RE_charge(stack) |
| | | local max_charge = technic.power_tools[stack:get_name()] |
| | | if not max_charge then return stack end |
| | | technic.set_RE_wear(stack, max_charge, max_charge) |
| | | local meta = minetest.deserialize(stack:get_metadata()) or {} |
| | | meta.charge = max_charge |
| | | stack:set_metadata(minetest.serialize(meta)) |
| | | return stack |
| | | end |
| | | |
| | | |
| | | -- If the node is loaded, returns it. If it isn't loaded, load it and return nil. |
| | | function technic.get_or_load_node(pos) |
| | | local node = minetest.get_node_or_nil(pos) |
| | | if node then return node end |
| | | local vm = VoxelManip() |
| | | local MinEdge, MaxEdge = vm:read_from_map(pos, pos) |
| | | return nil |
| | | end |
| | | |
| | | |
| | | technic.tube_inject_item = pipeworks.tube_inject_item or function(pos, start_pos, velocity, item) |
| | | local tubed = pipeworks.tube_item(vector.new(pos), item) |
| | | tubed:get_luaentity().start_pos = vector.new(start_pos) |
| | | tubed:setvelocity(velocity) |
| | | tubed:setacceleration(vector.new(0, 0, 0)) |
| | | end |
| | | |
| | | |
| | | -- Based on code by Uberi: https://gist.github.com/Uberi/3125280 |
| | | function technic.trace_node_ray(pos, dir, range) |
| | | local p = vector.round(pos) |
| | | local x_step, y_step, z_step = 0, 0, 0 |
| | | local x_component, y_component, z_component = 0, 0, 0 |
| | | local x_intersect, y_intersect, z_intersect = 0, 0, 0 |
| | | |
| | | if dir.x == 0 then |
| | | x_intersect = math.huge |
| | | elseif dir.x > 0 then |
| | | x_step = 1 |
| | | x_component = 1 / dir.x |
| | | x_intersect = x_component |
| | | else |
| | | x_step = -1 |
| | | x_component = 1 / -dir.x |
| | | end |
| | | if dir.y == 0 then |
| | | y_intersect = math.huge |
| | | elseif dir.y > 0 then |
| | | y_step = 1 |
| | | y_component = 1 / dir.y |
| | | y_intersect = y_component |
| | | else |
| | | y_step = -1 |
| | | y_component = 1 / -dir.y |
| | | end |
| | | if dir.z == 0 then |
| | | z_intersect = math.huge |
| | | elseif dir.z > 0 then |
| | | z_step = 1 |
| | | z_component = 1 / dir.z |
| | | z_intersect = z_component |
| | | else |
| | | z_step = -1 |
| | | z_component = 1 / -dir.z |
| | | end |
| | | |
| | | return function() |
| | | if x_intersect < y_intersect then |
| | | if x_intersect < z_intersect then |
| | | p.x = p.x + x_step |
| | | x_intersect = x_intersect + x_component |
| | | else |
| | | p.z = p.z + z_step |
| | | z_intersect = z_intersect + z_component |
| | | end |
| | | elseif y_intersect < z_intersect then |
| | | p.y = p.y + y_step |
| | | y_intersect = y_intersect + y_component |
| | | else |
| | | p.z = p.z + z_step |
| | | z_intersect = z_intersect + z_component |
| | | end |
| | | if vector.distance(pos, p) > range then |
| | | return nil |
| | | end |
| | | return p |
| | | end |
| | | end |
| | | |