local sides={
[0]="bottom",
[1]="top",
[2]="back",
[3]="front",
[4]="right",
[5]="left",
[6]="unknown",

bottom=0,
top=1,
back=2,
front=3,
right=4,
left=5,
unknown=6,

down=0,
up=1,
north=2,
south=3,
west=4,
east=5,

negy=0,
posy=1,
negz=2,
posz=3,
negx=4,
posx=5,

forward=3
}

local metatable=getmetatable(sides)or{}


local itertable={
sides[0],
sides[1],
sides[2],
sides[3],
sides[4],
sides[5]
}



function metatable.__len(sides)
return#itertable
end


function metatable.__ipairs(sides)
return ipairs(itertable)
end

setmetatable(sides,metatable)



return sides