local BLOCKSIZE = core.MAP_BLOCKSIZE

local squarsize = 1024

local loadx = squarsize
local loady = 256
local loadz = squarsize

local loadxblocks = math.floor(loadx/BLOCKSIZE)
local loadyblocks = math.floor(loady/BLOCKSIZE)
local loadzblocks = math.floor(loadz/BLOCKSIZE)

local loadxblockshalf = math.floor(loadxblocks/2)
local loadyblockshalf = math.floor(loadyblocks/2)
local loadzblockshalf = math.floor(loadzblocks/2)

local pos1 = { x = - loadxblockshalf, y = - loadyblockshalf, z = - loadzblockshalf }
local pos2 = { x = loadxblockshalf, y = loadyblockshalf, z = loadzblockshalf }


function emerge()
    minetest.emerge_area(pos1, pos2)
end


function loadmap()
    minetest.chat_send_all("start force load")
    for ix = - loadxblockshalf, loadxblockshalf , 1
    do
        for iy = - loadyblockshalf, loadyblockshalf , 1
        do
            for iz = - loadzblockshalf, loadzblockshalf , 1
            do
                minetest.chat_send_all("loading " .. tostring(ix) .. " , " .. tostring(iy) ..  " , " .. tostring(iz) )
                minetest.chat_send_all(tostring(minetest.forceload_block({ x = ix*16, y = iy*16, z = iz*16 })))
            end
        end
    end
end