84 lines
3.6 KiB
Lua
84 lines
3.6 KiB
Lua
-- ███████ ███████ █████ ██████ ████████ ██████ ██████
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ███████ █████ ███████ ██ ██ ██ ██ ██████
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ███████ ██ ██ ██ ██████ ██ ██████ ██ ██
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local wea = worldeditadditions
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worldeditadditions_core.register_command("sfactor", {
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params = "<mode> <factor> [<target=xz>]",
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description = "Make the length of one or more target axes of the current selection to be multiple(s) of <factor>.",
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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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local parts = wea.split(params_text, "%s+", false)
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if #parts < 2 then
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return false, "Error: Not enough arguments. Expected \"<mode> <factor> [<target>]\"."
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end
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local mode, fac, targ = unpack(parts)
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local modeSet = wea.table.makeset {"grow", "shrink", "avg"}
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-- Mode parsing
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if mode == "average" then -- If mode is average set to avg
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mode = "avg"
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elseif not modeSet[mode] then -- If mode is invalid throw error
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return false, "Error: Invalid <mode> \""..mode.."\". Expected \"grow\", \"shrink\", or \"average\"/\"avg\"."
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end
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-- Factor parsing
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local factest = tonumber(fac)
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if not factest then
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return false, "Error: Invalid <factor> \""..fac.."\". Expected a number."
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elseif factest < 2 then
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return false, "Error: <factor> is too low. Expected a number equal to or greater than 2."
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else
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fac = math.floor(factest+0.5)
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end
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-- Target parsing
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if not targ then -- If no target set to default (xz)
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targ = "xz"
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elseif targ:match("[xyz]+") then -- ensure correct target syntax
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targ = table.concat(wea.tochars(targ:match("[xyz]+"),true,true))
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else
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return false, "Error: Invalid <target> \""..targ.."\". Expected \"x\" and or \"y\" and or \"z\"."
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end
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return true, mode, fac, targ
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end,
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func = function(name, mode, fac, targ)
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local p1, p2 = vector.new(worldedit.pos1[name]), vector.new(worldedit.pos2[name])
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local delta = vector.subtract(p2,p1) -- local delta equation: Vd(a) = V2(a) - V1(a)
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local _tl = #targ -- Get targ length as a variable incase mode is "average"/"avg"
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local targ = wea.tocharset(targ) -- Break up targ string into set table
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local _m = 0 -- _m is the container to hold the average of the axes in targ
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-- set _m to the max, min or mean of the target axes depending on mode (_tl is the length of targ) or base if it exists
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if mode == "avg" then
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for k,v in pairs(targ) do _m = _m + math.abs(delta[k]) end
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_m = _m / _tl
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end
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-- Equasion: round(delta[<axis>] / factor) * factor
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local eval = function(int,fac_inner)
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local tmp, abs, neg = int / fac_inner, math.abs(int), int < 0
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if mode == "avg" then
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if int > _m then int = math.floor(abs / fac_inner) * fac_inner
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else int = math.ceil(abs / fac_inner) * fac_inner end
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elseif mode == "shrink" then int = math.floor(abs / fac_inner) * fac_inner
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else int = math.ceil(abs / fac_inner) * fac_inner end
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if int < fac_inner then int = fac_inner end -- Ensure selection doesn't collapse to 0
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if neg then int = int * -1 end -- Ensure correct facing direction
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return int
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end
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for k,v in pairs(targ) do delta[k] = eval(delta[k],fac) end
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worldedit.pos2[name] = vector.add(p1,delta)
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worldedit.mark_pos2(name)
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return true, "position 2 set to " .. minetest.pos_to_string(p2)
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end
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})
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