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AreaTargetingBot

by Stelokim.

package stelo;
import robocode.*;
import robocode.util.*;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.Color;

public class AreaTargetingBot extends AdvancedRobot
{
	private static final int ANGLE_SEGMENTS = 8;
	private static double[] buffer = new double[ANGLE_SEGMENTS];
	private static double[] metaX = new double[ANGLE_SEGMENTS];
	private static double[] metaY = new double[ANGLE_SEGMENTS];
	private static ScannedRobotEvent[] metaSRE = new ScannedRobotEvent[ANGLE_SEGMENTS];
				
	private static int lastMaxIndex;
	private static double moveAmount = 100;
		
	public void run() {
		setColors(Color.red, null, null);
		setAdjustGunForRobotTurn(true);
		setAdjustRadarForGunTurn(true);
		setAdjustRadarForRobotTurn(true);
		
		double x = 25, y = 150;
		double x2 = 150, y2 = 25;
//		int i;
//		corner = false;
		
		if (getX() > 500) {
			x = 1000 - x;
			x2 = 1000 - x2;
		}
		if (getY() > 500) {
			y = 1000 - y;
			y2 = 1000 - y2;
		}
//		corner = true;
		
		boolean spot1 = true;
		while(true) {
			spot1 = !spot1;
			if (spot1)
				goTo(x, y);
			else
				goTo(x2, y2);
			turnRadarRight(360 * 3);
			for (int i = 0; i < ANGLE_SEGMENTS; i++) {
				buffer[i] = 0;
			}
		}
	}

	/**
	 * onScannedRobot: What to do when you see another robot
	 */
	public void onScannedRobot(ScannedRobotEvent e) {
		double absBearing = Utils.normalAbsoluteAngle(e.getBearingRadians() + getHeadingRadians());
		int angleIndex = (int) (absBearing / (Math.PI * 2.0) * ANGLE_SEGMENTS);
		buffer[angleIndex] += 1.0 / e.getDistance(); // weight
//		buffer[angleIndex] += 1.0 / e.getEnergy();
//		buffer[angleIndex]++;
		metaSRE[angleIndex] = e;
		metaX[angleIndex] = getX() + e.getDistance() * Math.sin(absBearing);
		metaY[angleIndex] = getY() + e.getDistance() * Math.cos(absBearing);
		
		int maxIndex = lastMaxIndex;
		if (e.getEnergy() == 0) { // tries to kill disabled bot
			maxIndex = angleIndex;
		} else {		
			for (int i = 0; i < ANGLE_SEGMENTS; i++) {
				if (buffer[i] > buffer[maxIndex]) {
					maxIndex = i;
				}
			}
		}
		//out.println(maxIndex + " " + buffer[maxIndex]);
		ScannedRobotEvent thenEvent = metaSRE[maxIndex];
		
		double bulletPower = Math.max(0.1, Math.min(3.0, thenEvent.getEnergy() / 6.0));
		
		// HeadOnTargeting
		double angle = Math.atan2(metaX[maxIndex] - getX(), metaY[maxIndex] - getY());
/*
//		double w = thenEvent.getHeadingRadians() - lastEnemyHeading;
		double eX = metaX[angleIndex];
		double eY = metaY[angleIndex];
		double myX = getX();
		double myY = getY();
		double v = thenEvent.getVelocity();
		double bs = (20.0 - 3.0 * bulletPower);
//		if (Math.random() < 0.3) v = 0; // some randomness for GF 0

		double ww = thenEvent.getHeadingRadians();  // enemy's starting heading
		double db = bs * (thenEvent.getTime() - getTime());
		do
		{
			db += bs;
			eX += v * Math.sin(ww);
			eY += v * Math.cos(ww);
//			ww += w;  // turn w radians for next step
		}while (db < Point2D.distance(myX, myY, eX, eY));
		double angle = Math.atan2(eX - myX, eY - myY);
*/		
		setTurnGunRightRadians(Utils.normalRelativeAngle(angle - getGunHeadingRadians()));

//		setFire(3);
		if (getEnergy() > bulletPower)
			setFire(bulletPower);
		
		if (Math.random() < 0.05 * 300.0 / e.getDistance())
			moveAmount = -moveAmount;
		if (!(new Rectangle2D.Double(18, 18, 1000-36, 1000-36)).contains(Math.sin(absBearing = getHeadingRadians())*moveAmount + getX(),Math.cos(absBearing)*moveAmount + getY()))
			moveAmount = -moveAmount;
			
//		if (Math.random() < 0.05) {
//			setTurnRight(90);			
//			setTurnRightRadians(Utils.normalRelativeAngle(Math.PI / 2.0 + e.getBearingRadians()));
//		}
//		setTurnRight(90.0 / 20.0);
//		if (getOthers() <= 1) {
//			setAhead(moveAmount);
//			setTurnRightRadians(Math.random() - 0.5 + Math.cos(e.getBearingRadians()));
//			setTurnRadarLeftRadians(getRadarTurnRemainingRadians());
//		}

		lastMaxIndex = maxIndex;
	}

//	public void onHitByBullet(HitByBulletEvent e) {
//		setTurnRightRadians(Utils.normalRelativeAngle(Math.PI / 2.0 + e.getBearingRadians()));
//		setAhead(Math.random() < 0.5? 100 : -100);
//		avoidAngle = e.getBearingRadians() + getHeadingRadians() + Math.PI;
//	}

	private void goTo(double destinationX, double destinationY) {
        double angle = Utils.normalRelativeAngle(Math.atan2(destinationX - getX(), destinationY - getY()) - Math.toRadians(getHeading()) );
		double turnAngle = Math.atan(Math.tan(angle));
        setTurnRightRadians(turnAngle);
	
        setAhead(Math.sqrt((getX() - destinationX) * (getX() - destinationX) + (getY() - destinationY) * (getY() - destinationY)) * (angle == turnAngle ? 1 : -1));
        //ahead((angle == turnAngle ? 100 : -100));	
	}
}

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Last edited February 18, 2007 15:49 EST by Stelokim (diff)
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