Robocode fire help

[Irfon]

Ok. I have to make a team which surrounds the enemy. and shoots at it when it
surrounds the enemy. I have more or less got them to surround the enemy (some
group together and shoot each other).for now I set it to fire when they get
the message about the enemy, Is there a way to make them shoot only when they
are a certain distance from the enemy?

[Flemming N. Larsen]

Well, one thing you could do is to create your own Condition, i.e. create a
class that inherits from Condition, which should return true when it fulfills
your criteria, e.g. like this:

class FireDistanceCondition extends Condition {
    public boolean test() {
        // Calculate distance to enemy robot, where (enemyX, enemyY) helds the coordinates of the enemy
        double dx = getX() - enemyX;
        double dy = getY() - enemyY;
        double distance = Math.sqrt(dx*dx + dy*dy);

        // Our condition is met if the distance < 200 and the gun is able to fire
        return distance < 200 && getGunHeat() == 0;
    }
}

In you run() method of your robot, you must add this line before your main
loop (e.g. while(true)):

addCustomEvent(new FireDistanceCondition);

Next you should implement an event handler for your custom event:

public void onCustomEvent(CustomEvent event) {
    if (event.getCondition() instanceof FireDistanceCondition) {
        setFire(1); // or alternatively use fire(1) instead
    }
}

[Flemming N. Larsen]

Sorry, the formatting for the last part went wrong. Here it is:

...

Next you should implement an event handler for your custom event:

public void onCustomEvent(CustomEvent event) {
    if (event.getCondition() instanceof FireDistanceCondition) {
        setFire(1); // or alternatively use fire(1) instead
    }
}