SuperTracker

SuperTracker is a part of the Super Sample Bots set by CrazyBassoonist. It is intended to provide new robocoders with a new challenge after beating all of the sample robots.

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Movement

SuperTracker moves close to an enemy, then circles them perpendicularly.

Targeting

SuperTracker uses a reduced linear gun for targeting.

Code

package supersample;

import robocode.*;
import java.awt.*;

/**
 * SuperTracker - a Super Sample Robot by CrazyBassoonist based on the robot Tracker by Mathew Nelson and maintained by Flemming N. Larsen
 * <p/>
 * Locks onto a robot, moves close, fires when close.
 */
public class SuperTracker extends AdvancedRobot {
	int moveDirection=1;//which way to move
	/**
	 * run:  Tracker's main run function
	 */
	public void run() {
		setAdjustRadarForRobotTurn(true);//keep the radar still while we turn
		setBodyColor(new Color(128, 128, 50));
		setGunColor(new Color(50, 50, 20));
		setRadarColor(new Color(200, 200, 70));
		setScanColor(Color.white);
		setBulletColor(Color.blue);
		setAdjustGunForRobotTurn(true); // Keep the gun still when we turn
		turnRadarRightRadians(Double.POSITIVE_INFINITY);//keep turning radar right
		}

	/**
	 * onScannedRobot:  Here's the good stuff
	 */
	public void onScannedRobot(ScannedRobotEvent e) {
		double absBearing=e.getBearingRadians()+getHeadingRadians();//enemies absolute bearing
		double latVel=e.getVelocity() * Math.sin(e.getHeadingRadians() -absBearing);//enemies later velocity
		double gunTurnAmt;//amount to turn our gun
		setTurnRadarLeftRadians(getRadarTurnRemainingRadians());//lock on the radar
		if(Math.random()>.9){
			setMaxVelocity((12*Math.random())+12);//randomly change speed
		}
		if (e.getDistance() > 150) {//if distance is greater than 150
			gunTurnAmt = robocode.util.Utils.normalRelativeAngle(absBearing- getGunHeadingRadians()+latVel/22);//amount to turn our gun, lead just a little bit
			setTurnGunRightRadians(gunTurnAmt); //turn our gun
			setTurnRightRadians(robocode.util.Utils.normalRelativeAngle(absBearing-getHeadingRadians()+latVel/getVelocity()));//drive towards the enemies predicted future location
			setAhead((e.getDistance() - 140)*moveDirection);//move forward
			setFire(3);//fire
		}
		else{//if we are close enough...
			gunTurnAmt = robocode.util.Utils.normalRelativeAngle(absBearing- getGunHeadingRadians()+latVel/15);//amount to turn our gun, lead just a little bit
			setTurnGunRightRadians(gunTurnAmt);//turn our gun
			setTurnLeft(-90-e.getBearing()); //turn perpendicular to the enemy
			setAhead((e.getDistance() - 140)*moveDirection);//move forward
			setFire(3);//fire
		}	
	}
	public void onHitWall(HitWallEvent e){
		moveDirection=-moveDirection;//reverse direction upon hitting a wall
	}
	/**
	 * onWin:  Do a victory dance
	 */
	public void onWin(WinEvent e) {
		for (int i = 0; i < 50; i++) {
			turnRight(30);
			turnLeft(30);
		}
	}
}