How can I animate the ghosts movements to be random? using these commands :

$*$ getDirection, setDirection,

$*$ move$($speed$),$

$*$ intersects$($Character$)$

$*$ animate, animateFlip, animateShake

$*$ playBombTicking, playGoldFall, playGoldDrop,

$*$ removeSelf, putBrokenGold

$*$ earthAbove, earthBelow, earthToLeft, earthToRight,

$*$ earthFront, goldFront

$*$ getDirection, setDirection,

$*$ move$($speed$),$

$*$ animate, animateDead,

$*$ intersects$($Character$),$ intersectsWithName$($String$)$

$*$ getClara, getGhostHealer,

$*$ isAboveMe$($Character$),$ isBelowMe$($Character$),$ isToMyLeft$($Character$),$ isToMyRight$($Character$),$

$*$ makeClaraDead,

$*$ playGhostEatenSound,

$*$ wrapAroundWorld

$*$ getDirection, setDirection,

$*$ move,

$*$ animate, animateDead,

$*$ onLeaf, removeLeaf,

$*$ onEarth, removeEarth

$*$ onGold, removeGold

$*$ allLeavesEaten, allGoldEaten

$*$ isClaraDead,

$*$ playLeafEatenSound, playCollectGold

$*$ playIntro, isIntroStillPlaying,

$*$ wrapAroundWorld,

$*$ getCurrentLevelNumber, advanceToLevel