randvar and randvarvar generate a random number and put it in a variable.
randvar and randvarvar MUST NOT be used in unsynchronised code or you will get a desync. furthermore this desync is insiduous and won't appear immidiately but only the next time the random number generator is used for its proper function.
in the official eduke releases and many modified versions (including current releases of eduke32) this is broken and use will desync multiplayer
we have now fixed it