The code given can't be right. It does not look like it would even compile. Also, that cannot be the entire class as there is no class declaration line shown.

public static int xSpeed, ySpeed; public int direction = 5; public void act() { move(direction); } Actor player1 = getOneIntersectingObject(player1.class); if (player_1!=null) { if(isTouching(player1.class)) { direction = -1*direction; turn(90+Greenfoot.getRandomNumber(180)); World myWorld = getWorld(); MyWorld myworld = (MyWorld)myWorld; Counter1 counter1 = myworld.get Counter1(); counter1.addScore(1); } Actor player2 = getOneIntersectingObject(player2.class); if (player_2!=null) { if(isTouching(player2.class)) { direction = -1*direction; turn(90+Greenfoot.getRandomNumber(180)); World myWorld = getWorld(); MyWorld myworld = (MyWorld)myWorld; Counter2 counter2 = myworld.getCounter2(); counter2addScore(1); } Actor player_3 = getOneIntersectingObject(player3.class); if (player_3!=null){ if(isTouching(player3.class)) { turn(90+Greenfoot.getRandomNumber(180)); World myWorld = getWorld(); MyWorld myworld = (MyWorld)myWorld; Counter1 counter1 = myworld.get Counter1(); counter1.addScore(1); } Actor player_4 = getOneIntersectingObject(player4.class); if (player_4!=null){ if(isTouchingplayer4.class)) { turn(90+Greenfoot.getRandomNumber(180)); World myWorld = getWorld(); MyWorld myworld = (MyWorld)myWorld; Counter2 counter2 = myworld.getCounter2(); counter2addScore(1); } if(isAtEdge()){ turn(90+Greenfoot.getRandomNumber(180)); } xSpeed = getX(); ySpeed = getY(); } }

Again that cannot be the entire class codes. Plus, there is no way it could possibly compile as is. How can you possibly determine that the actor gets stuck anywhere (as it cannot run until it compiles properly)?