xdecor/handlers/nodeboxes.lua

58 lines
1.5 KiB
Lua

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)