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xdecor.box = {
slab_y = function(height, shift)
return {-0.5, -0.5 + (shift or 0), -0.5, 0.5, -0.5 + height +
(shift or 0), 0.5}
end,
slab_z = function(depth)
return {-0.5, -0.5, -0.5 + depth, 0.5, 0.5, 0.5}
end,
bar_y = function(radius)
return {-radius, -0.5, -radius, radius, 0.5, radius}
end,
cuboid = function(radius_x, radius_y, radius_z)
return {-radius_x, -radius_y, -radius_z, radius_x, radius_y, radius_z}
end
}
xdecor.nodebox = {
regular = {type="regular"},
null = {type="fixed", fixed={0,0,0,0,0,0}}
}
xdecor.pixelbox = function(size, boxes)
local fixed = {}
for _, box in pairs(boxes) do
-- `unpack` has been changed to `table.unpack` in newest Lua versions.
local x, y, z, w, h, l = unpack(box)
fixed[#fixed+1] = {
(x / size) - 0.5,
(y / size) - 0.5,
(z / size) - 0.5,
((x + w) / size) - 0.5,
((y + h) / size) - 0.5,
((z + l) / size) - 0.5
}
end
return {type="fixed", fixed=fixed}
end
local mt = {}
mt.__index = function(table, key)
local ref = xdecor.box[key]
local ref_type = type(ref)
if ref_type == "function" then
return function(...)
return {type="fixed", fixed=ref(...)}
end
elseif ref_type == "table" then
return {type="fixed", fixed=ref}
elseif ref_type == "nil" then
error(key.."could not be found among nodebox presets and functions")
end
error("unexpected datatype "..tostring(type(ref)).." while looking for "..key)
end
setmetatable(xdecor.nodebox, mt)
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