local f = io.open("map/r.0.0.mcr", "rb")
local content = f:read("*all")
chunks={}
for x=0,31 do
    chunks[x]={}
    for z=0,31 do
        local pos=4*(x%32+4*(z%32))
        local posStr=content:sub(pos,pos+4)
        chunks[x][z]={}
        chunks[x][z].posStr=posStr

        local offset=--[[???]]--*4*1024
        local leng=--[[???]]--*4*1024
        chunks[x][z].data=content:sub(offset,leng)
        print(x,z,chunks[x][z].posStr,offset,leng,chunks[x][z].data)
    end
end