-- x-run: cd .. && scp -r ./* pneumatic-pump:htdocs/cc/augment/

return function()
    local cubes = {}
    while _G._running do
        local el = entities
        print("found "..#entities.."entities")
        for i, cube in ipairs(cubes) do
            if el[i] == nil then
                cube.setSize(0.0, 0.0, 0.0)
                print("entity box "..tostring(i).." unused")
            end
        end
        for i, entity in ipairs(entities) do
            if cubes[i] == nil then
                cubes[i] = canvas3d.addBox(0, 0, 0)
                cubes[i].setDepthTested(false)
                print("Created cube for entity "..entity.name)
            end
            cubes[i].setPosition(entity.x, entity.y, entity.z)
            cubes[i].setSize(0.25, 0.25, 0.25)
        end
        os.sleep(0.05)
    end
end