i need to turn this, into a AI mower. public class RandomMower extends Mower { private int state=0; /** * Act - do whatever the AIMower wants to do. This method is called whenever * the 'Act' or 'Run' button gets pressed in the environment. */ public void act() { switch (state) { case 0: throttleUp(); state=1; break; case 1: if (bumpSensor()==true) { turnLeft(15); } else { switch (Greenfoot.getRandomNumber(5)) { case 0: turnLeft(Greenfoot.getRandomNumber(2)*15); break; case 1: turnRight(Greenfoot.getRandomNumber(2)*15); break; } } state=1; break; } // Call the Mower.act() method super.act(); } }

You didn't answer the previous question - is the lawn always rectangular? Or could it be any shape (triangle, pentagon, irregular septagon...) If it's rectangular and you know your starting position then you can start in the bottom left, wait until you hit something then turn right 90 degrees, go forward your width, turn 90 degrees again then loop over again (until you hit something.) If it can be any shape, things get more complicated!

Well if it has objects in the way that makes it a bit more complicated. You could keep track of your position by judging how much you've turned / travelled then work out from that if something you've hit is a likely edge or obstacle. That might give you a starting point. With these sorts of problems it's often easier to map out your logic on paper first, then turn it into code later.