NightBird

NightBird
Author(s)	BeastBots
Extends	AdvancedRobot
Targeting	Linear Targeting
Movement	Random Movement
Current Version	1.2
Code License	none

Background Information

Bot Name

NightBird

Extends

AdvancedRobot

What's special about it?

Nothing really. My first NanoBot.

Check out my Nightbird M series for my (failed) Multimode version.

How competitive is it?

Not so much. Not entered in roborumble due to the 2013 robocode repository crash.

My guess is it would be around the position of N, in the 800s od roborumble.

CodeSize

NightBird 1.2 is 169 bytes without colors, I think it's one of the smallest bots around. It got as high as 67% on v.1.0, which has 239 bytes. see the version history for more.

Strategy

How does it move?

It uses this homemade thingy... random movement that I made up.

How does it fire?

Simple linear targeting from the wiki page.

How does it dodge bullets?

Usually, robot moves little enough to dodge a 2.0-3.0 powered linear or circular bullet. If I get lucky, it might be able to dodge linear bullets with power lower than 1.0. It's okay against HOT bullets.

Additional Information

Where did you get the name?

I thought about NightHawk, but that was taken. So I did NightBird.

May I use your code?

Yes. It's below, I don't really care about what you do, as long as you don't make a total copy and change the colors or name. NightBird is a very simple beginner bot, and easy to understand.

What's next for your robot?

Better targeting. maybe a PM gun from WeekendObsession?.

Does it have any White Whales?

Acero: Movement I can't beat(I know. ahf must be laughing at me right now!).

N̶:̶ ̶g̶o̶o̶d̶ ̶m̶o̶v̶e̶m̶e̶n̶t̶,̶ ̶g̶r̶e̶a̶t̶ ̶g̶u̶n̶ Not anymore! Average 54%, good enough for me.

What other bots is it based on?

NightBird does not have code from any other bots(maybe accidentally, but I don't know).

Source Code

package EH.nano;
import robocode.*;
import robocode.util.*;
/**
 * NightBird - a robot by BeastBots
 * 
 * V.1.0:
 * -My first NanoBot!
 * -random movement/stop and go
 * -head on targeting
 * -locking radar
 * -Codesize 239
 * 
 * V.1.1:
 * -linear gun
 * -wierd movement
 * -same radar
 * -not good...
 * 
 * V.1.2:
 * -complete rewrite due to messy code and errors
 * -random movement
 * -infinity lock
 * -linear targeting
 * -codesize 169
 * 
 */
public class NightBird extends AdvancedRobot{

int direction=1;

	public void run() {
		
		//gun/radar settings
		setAdjustGunForRobotTurn(true);
		setAdjustRadarForGunTurn(true);
		
		while(true) {
                //turn the radar
		turnRadarRightRadians(Double.POSITIVE_INFINITY);
		}
	}

	public void onScannedRobot(ScannedRobotEvent e) {

		//infinity lock
		setTurnRadarLeftRadians(getRadarTurnRemainingRadians());

                //move
		setAhead(10*direction);
                //turn
		setTurnLeft(90-e.getBearing());

		if (Math.random()<0.035) {
			direction=-direction;
		}

                //robowiki Linear targeting
		double bulletPower = getEnergy()/18;
    	double headOnBearing =
			   getHeadingRadians() + e.getBearingRadians();
    	double linearBearing =
 			   headOnBearing + Math.asin(e.getVelocity() / Rules.getBulletSpeed(bulletPower)
 * Math.sin(e.getHeadingRadians() - headOnBearing));
	setTurnGunRightRadians(Utils.normalRelativeAngle(linearBearing - getGunHeadingRadians()));

		if (getEnergy()<1.0) {
			return;
		}

    	        setFire(bulletPower);
		}

		public void onHitWall(){
			direction=-direction;
		}
}

Version History

v.1.0

To start, I used stop and go with random velocity and a HOT gun. Black, grey, and blue colors. Codesize 239 including colors.

v.1.1

Linear gun, no colors due to high code size(no colors 234).

v.1.2

Complete rewrite due to messy coding and various bugs. Now has random movement, energy management, and generally gets 45-67% on v.1.0. Codesize with no colors is 169 bytes.