mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-28 01:53:44 +01:00
45 lines
2.2 KiB
Lua
45 lines
2.2 KiB
Lua
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--- Scales the defined region by the given scale factor in the given directions.
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-- Scale factor vectors containing both scale up and scale down operations are
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-- split into 2 different scale operations automatically.
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-- @param pos1 Vector Position 1 of the defined region,
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-- @param pos2 Vector Position 2 of the defined region.
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-- @param scale Vector The scale factor - as a vector - by which to scale (values between -1 and 1 are considered a scale down operation).
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-- @param direction Vector The direction to scale in - as a vector. e.g. { x = -1, y = 1, z = -1 } would mean scale in the negative x, positive y, and nevative z directions.
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-- @return boolean, string|table Whether the operation was successful or not. If not, then an error messagea as a string is also passed. If it was, then a statistics object is returned instead.
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function worldeditadditions.scale(pos1, pos2, scale, direction)
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if scale.x == 0 or scale.y == 0 or scale.z == 0 then
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return false, "A component of the scale factoro was 0."
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end
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local scale_down = vector.new(1, 1, 1)
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local scale_up = vector.new(1, 1, 1)
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if scale.x > -1 and scale.x < 1 then scale_down.x = scale.x end
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if scale.y > -1 and scale.y < 1 then scale_down.y = scale.y end
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if scale.z > -1 and scale.z < 1 then scale_down.z = scale.z end
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if scale.x > 1 or scale.x < -1 then scale_up.x = scale.x end
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if scale.y > 1 or scale.y < -1 then scale_up.y = scale.y end
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if scale.z > 1 or scale.z < -1 then scale_up.z = scale.z end
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local stats_total = { updated = 0, operations = 0 }
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local success, stats
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if scale_up.x ~= 1 or scale_up.y ~= 1 or scale_up.z ~= 1 then
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success, stats = worldeditadditions.scale_up(pos1, pos2, scale_up, direction)
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if not success then return success, stats end
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stats_total.updated = stats.updated
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stats_total.operations = stats_total.operations + 1
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stats_total.scale_down = stats.scale
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end
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if scale_down.x ~= 1 or scale_down.y ~= 1 or scale_down.z ~= 1 then
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success, stats = worldeditadditions.scale_down(pos1, pos2, scale_down, direction)
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if not success then return success, stats end
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stats_total.updated = stats_total.updated + stats.updated
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stats_total.operations = stats_total.operations + 1
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end
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return true, stats_total
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end
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