Robocode

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[edit] FAQ

[edit] Code Snippets

• If the enemy has fired

if (prevEnergy - currEnergy <= 3 && prevEnergy - currEnergy > 0) {
}

• Get absoluteBearing

// ScannedRobotEvent e
double absoluteBearing = getHeadingRadians() + e.getBearingRadians();

• Find enemy location

// ScannedRobotEvent e
double ex = getX() + Math.sin(absoluteBearing)*e.getDistance();
double ey = getY() + Math.cos(absoluteBearing)*e.getDistance();

• Generate a random number within specified range

public int pickNumberInRange(int aLowerLimit, int aUpperLimit) {
   Random generator = new Random();
   // get the range, casting to long to avoid overflow problems
   long range = (long)aUpperLimit - (long)aLowerLimit + 1;
   // compute a fraction of the range, 0 <= frac < range
   long fraction = (long)(range * generator.nextDouble());
   return (int)(fraction + aLowerLimit);
}

[edit] Further reading

Wikipedia has related information at Robocode

• Java Programming