mapas funcs

function mapa.read(path)
    local map = {};
    if files.exists(path) then
        file = io.open(path);
        for line in file:lines() do
            table.insert(map,{})
            for k = 1, #line do
                table.insert(map[#map],tostring(string.sub(line,k,k)))
            end
        end
        file:close();
    end
    return map;
end

function mapa.save(map,path)
    if files.exists(path) then
        file = io.open(path,"w+");
        for i =1, #map do
            file:write(string.implode(map[i]).."\n");
        end
        file:flush();
        file:close();
        return true;
    end
    return false;
end