function verifyLoS(start, end) {
    if (start == end) return true;
    for (var i = 1; i < (round(getDistance(start, end))); i++)
        if(!isEmptyCell(getCellFromXY(round(getCellX(start) + ((getCellX(end) - getCellX(start))/(round(getDistance(start, end)))) * i), round(getCellY(start) + ((getCellY(end) - getCellY(start))/(round(getDistance(start, end)))) * i)))) return false;
    return true;
}