{VARIABLE charge_pos 0}

    [while]
        {VARIABLE_NUMERICAL_LESS_THAN charge_pos $siege_charges.length}
        {VARIABLE_NUMERICAL_NOT_EQUALS siege_charges[$charge_pos].x ({_X})}
        {VARIABLE_NUMERICAL_NOT_EQUALS siege_charges[$charge_pos].y ({_Y})}
        [do]
            {VARIABLE_INC charge_pos}
        [/do]
    [/while]