SuperWalls

SuperWalls
Author(s)	CrazyBassoonist, Nat
Extends	AdvancedRobot
Targeting	Head-On Targeting, Linear Targeting
Movement	Random Pattern Movement
Current Version	1.0
Code License	Public domain
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SuperWalls 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.

Thanks to Nat for cleaning up the bad coding caused by my horrible coding skills.

Movement

SuperWalls moves like Walls, but without a constant speed and it changes directions every now and then.

Targeting

SuperWalls uses two guns, a Linear Targeting gun and a Head-On Targeting gun. It keeps track of the number and of shots and hits of each gun, and uses whichever gun works better.

Code

package supersample;

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

/**
 * SuperWalls - a sample robot by CrazyBassoonist based on the sample robot Walls by Mathew Nelson and maintained by Flemming N. Larsen
 * Moves around the outer edge with two targeting systems
 */
public class SuperWalls extends AdvancedRobot {
	static int HGShots;     //Number of shots with Head-On Targeting
	static int LGShots;     //Number of shots with Linear Targeting
	static int HGHits;      //Number of hits with Head-On Targeting
	static int LGHits;      //Number of hits with Linear Targeting
	boolean gunIdent;       //Used to tell which gun we are using
	int dir = 1;
	double energy;
	static int enemyFireCount = 0;

	public void run() {
		setAdjustRadarForRobotTurn(true);
		setAdjustRadarForGunTurn(true);
		setBodyColor(Color.black);
		setGunColor(Color.black);
		setRadarColor(Color.orange);
		setBulletColor(Color.cyan);
		setScanColor(Color.cyan);

		setTurnRadarRight(Double.POSITIVE_INFINITY);

		// turnLeft to face a wall.
		// getHeading() % 90 means the remainder of
		// getHeading() divided by 90.
		turnLeft(getHeading() % 90);

		while (true) {
			//if (getDistanceRemaining() == 0) {
			//	turnRight(90 * dir);
				if (Utils.isNear(getHeadingRadians(), 0D) || Utils.isNear(getHeadingRadians(), Math.PI)) {
					ahead((Math.max(getBattleFieldHeight() - getY(), getY()) - 28) * dir);
				} else {
					ahead((Math.max(getBattleFieldWidth() - getX(), getX()) - 28) * dir);
				}
			turnRight(90 * dir);
			//}
		}
	}

	/**
	 * onScannedRobot: Fire!
	 */
	public void onScannedRobot(ScannedRobotEvent e) {
		double absBearing = e.getBearingRadians() + getHeadingRadians();                // The enemies location relative to us
		double latVel = e.getVelocity() * Math.sin(e.getHeadingRadians() - absBearing); // The enemies lateral velocity
		double radarTurn = absBearing - getRadarHeadingRadians();                       // The amount to turn our radar

		double HGRating = (double) HGHits / HGShots;
		double LGRating = (double) LGHits / LGShots;
		
		if (energy > (energy = e.getEnergy())) {
			enemyFireCount++;
			if (enemyFireCount % 5 == 0) {
				dir = -dir;
				if (Utils.isNear(getHeadingRadians(), 0D) || Utils.isNear(getHeadingRadians(), Math.PI)) {
					setAhead((Math.max(getBattleFieldHeight() - getY(), getY()) - 28) * dir);
				} else {
					setAhead((Math.max(getBattleFieldWidth() - getX(), getX()) - 28) * dir);
				}
			}
		}
	
		setMaxVelocity(Math.random() * 12);

		if ((getRoundNum() == 0 || LGRating > HGRating) && getRoundNum() != 1){ // In the first round or when linear gun got more hitting percentage use linear targeting
			double bulletPower = Math.min(3, e.getEnergy() / 4);
			setTurnGunRightRadians(Utils.normalRelativeAngle(absBearing - getGunHeadingRadians() + Math.asin(latVel / (20 - 3 * bulletPower))));
			LGShots++;
			gunIdent = true;
			setFire(bulletPower); // Fire the minimum amount of energy needed to finish off the other robot
		} else { // in second round or when the head-on gun got more hitting percentage, use head-on gun.
			setTurnGunRightRadians(Utils.normalRelativeAngle(absBearing - getGunHeadingRadians()));
			HGShots++;
			gunIdent = false;
			setFire(e.getEnergy() / 4); // Fire the minimum amount of energy needed to finish off the other robot
		}
		setTurnRadarRightRadians(Utils.normalRelativeAngle(radarTurn) * 2); // Make the radar lock on
	}

	public void onBulletHit(BulletHitEvent e) {
		if(gunIdent) {
			LGHits = LGHits+1;
		} else {
			HGHits = HGHits+1;
		}
	}
}