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