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
|
|
|
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
|
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
|
