mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-16 21:12:59 +00:00
Starbeamrainbowlabs
b8a5bec987
This should avoid any crashes on startup because worldedit.alias_command is nil too (strange!)
74 lines
3.5 KiB
Lua
74 lines
3.5 KiB
Lua
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ██████ ██████ ██ ████ ████ ██████ ███████ ████ ███████
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worldedit.register_command("convolve", {
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params = "<kernel> [<width>[,<height>]] [<sigma>]",
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description = "Advanced version of //smooth from we_env. Convolves over the defined region with the given kernel. Possible kernels: box, pascal, gaussian. The width & height (if specified) must be odd integers. If the height is not specified, it defaults to the width. gaussian should give the smoothest result, but the width & height must be identical. The sigma value is only applicable to gaussian kernels, and can be thought of as the 'smoothness' to apply.",
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privs = { worldedit = true },
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require_pos = 2,
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parse = function(params_text)
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if not params_text then params_text = "" end
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local parts = worldeditadditions.split(params_text, "%s+", false)
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local kernel_name = "gaussian"
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local width = 5
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local height = 5
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local sigma = nil
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if #parts >= 1 and #parts[1] > 0 then
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kernel_name = parts[1]
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end
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if #parts >= 2 then
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local parts_dimension = worldeditadditions.split(parts[2], ",%s*", false)
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print("[convolve] [str]width", parts_dimension[1], "[str]height", parts_dimension[2])
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width = tonumber(parts_dimension[1])
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if not width then
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return false, "Error: Invalid width (it must be a positive odd integer)."
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end
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if #parts_dimension >= 2 then
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height = tonumber(parts_dimension[2])
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if not height then
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return false, "Error: Invalid height (it must be a positive odd integer)."
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end
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else
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height = width
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end
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end
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if #parts >= 3 then
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sigma = tonumber(parts[3])
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if not sigma then
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return false, "Error: Invalid sigma value (it must be a valid number - floating point numbers are allowed)"
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end
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end
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return true, kernel_name, math.floor(width), math.floor(height), sigma
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end,
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nodes_needed = function(name)
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return worldedit.volume(worldedit.pos1[name], worldedit.pos2[name])
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end,
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func = function(name, kernel_name, kernel_width, kernel_height, sigma)
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local start_time = os.clock()
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print("[exec] kernel_width", kernel_width, "kernel_height", kernel_height)
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local success, kernel = worldeditadditions.get_conv_kernel(kernel_name, kernel_width, kernel_height, sigma)
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if not success then return success, kernel end
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local kernel_size = {}
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kernel_size[0] = kernel_height
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kernel_size[1] = kernel_width
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local success, stats = worldeditadditions.convolve(
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worldedit.pos1[name], worldedit.pos2[name],
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kernel, kernel_size
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)
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local time_taken = os.clock() - start_time
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minetest.log("action", name.." used //convolve at "..worldeditadditions.vector.tostring(worldedit.pos1[name]).." - "..worldeditadditions.vector.tostring(worldedit.pos2[name])..", adding "..stats.added.." nodes and removing "..stats.removed.." nodes in "..time_taken.."s")
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return true, "Added "..stats.added.." and removed "..stats.removed.." nodes in " .. time_taken .. "s"
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end
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})
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