Help:Help/Code Shrinking

Annoying... I've made an Über-Nano bot that gets 99% against N, but I'm stuck at 283 bytes... Awesomeness 01:29, 30 April 2009 (UTC)

Post the source. I'm a past master at reducing codesize on bots. Hell, I wrote the original articles over at the repository and codesize tricks that spurred the nanobot explosion. I'd love some new blood in the nano area while I grit my teeth over Infinity/Dustbunny and how to make them just 1% better :) --Miked0801 03:56, 30 April 2009 (UTC)

Okay.

package awesomeness;

import robocode.*;
import robocode.util.*;
import java.util.Random;
import static robocode.util.Utils.normalRelativeAngleDegrees;
//import java.awt.Color;

/**
 * Elite - a robot by Awesomeness
 */
public class Elite extends AdvancedRobot {
	
	int previousEnergy = 100;
	int count;
	int countAdd;// The amount to add to the count
	byte movementDirection = 1;
	byte alternate;
	Random generator = new Random(); //This makes random numbers
	
	/**
	 * run: Elite's default behavior
	 */
	public void run() {
		
		setAdjustRadarForGunTurn(true);
		setAdjustGunForRobotTurn(true);
		
		
		// After trying out your robot, try uncommenting the import at the top,
		// and the next line:
		//setColors(Color.red,Color.blue,Color.green);
		while(true) {
			turnRadarRightRadians(Double.POSITIVE_INFINITY);
		}
	}

	/**
	 * onScannedRobot: What to do when you see another robot
	 */
	public void onScannedRobot(ScannedRobotEvent e) {
		
		//The absolute bearing, this is used a lot
		double absoluteBearing = getHeadingRadians() + e.getBearingRadians();
		
		///////////////////////////////////////////////////////
		////////////////////Movement Code//////////////////////
		
		//If there's a change in energy, it probably fired
		int changeInEnergy = previousEnergy- (int) e.getEnergy();
		
		if (changeInEnergy>0 && changeInEnergy<=4) {
			alternate();
		}
		
							
		// Stay at right angles to the opponent	
		setTurnRight(e.getBearing()+90/*-5*movementDirection*/);	
		
		countAdd += (generator.nextInt(2)*2-1) * 3;
	
		count += countAdd;
		
		setMaxVelocity(8);
		
		
		setAhead(50*movementDirection);
		
		// Track the energy level
		previousEnergy = (int) e.getEnergy();
		
		////////////////////Movement Code//////////////////////
		///////////////////////////////////////////////////////
		
		///////////////////////////////////////////////////////
		///////////////////////Gun Code////////////////////////
		
		//Pretty simple...
		setTurnGunRightRadians(Utils.normalRelativeAngle(absoluteBearing - 
    		getGunHeadingRadians() + (e.getVelocity() * Math.sin(e.getHeadingRadians() - 
    		absoluteBearing) / 13.2)));
		if (getGunHeat() == 0) { // Only try to fire if we can-
			setFire(2.0); // otherwise we do much worse
		}
		
		///////////////////////Gun Code////////////////////////
		///////////////////////////////////////////////////////
		
		
		
		///////////////////////////////////////////////////////
		/////////////////////Radar Code////////////////////////
			
		setTurnRadarLeftRadians(getRadarTurnRemainingRadians());
		
		
		/////////////////////Radar Code////////////////////////
		///////////////////////////////////////////////////////	
		
		
		
	}
	public void onHitWall(HitWallEvent e) {
		i();
	}
	
	public void i() {
		setMaxVelocity(1);
		movementDirection = (byte) -movementDirection;
	}
	public void alternate() {
		i();//Length: 276
		alternate = (byte) -alternate;
		if (alternate == 1) {
			i();
		}
	}
}

Edit: WAIT A SEC! I FORGOT TO DELETE PART OF MY OLD COUNTING CODE! What if I delete it? I hope it'll be enough! Awesomeness 11:33, 30 April 2009 (UTC) Okay, changed the code. 278 bytes.... lol Awesomeness 11:44, 30 April 2009 (UTC)

What's count and countAdd use for? Here is my version that do exactly same as your. except that it 233 bytes (with javac)

package awesomeness;

import robocode.*;
import robocode.util.*;
import java.util.Random;
import static robocode.util.Utils.normalRelativeAngleDegrees;
//import java.awt.Color;

/**
 * Elite - a robot by Awesomeness
 */
public class Elite extends AdvancedRobot {
	
	static double previousEnergy = 100;
	static int count;
	static int countAdd;// The amount to add to the count
	static int movementDirection = 50;
	static int alternate;
	static Random generator = new Random(); //This makes random numbers
	
	/**
	 * run: Elite's default behavior
	 */
	public void run() {
		setAdjustGunForRobotTurn(true);
		turnRadarRightRadians(Double.POSITIVE_INFINITY);
	}

	/**
	 * onScannedRobot: What to do when you see another robot
	 */
	public void onScannedRobot(ScannedRobotEvent e) {
		
		//The absolute bearing, this is used a lot
		double absoluteBearing = e.getBearingRadians();
		
		///////////////////////////////////////////////////////
		////////////////////Movement Code//////////////////////
		
		//If there's a change in energy, it probably fired
		double changeInEnergy = previousEnergy - e.getEnergy();
		
		if (changeInEnergy>0d && changeInEnergy<=4d) {
			i();
			alternate = -alternate;
			if (alternate == 1) {
				i();
			}
		}
		
							
		// Stay at right angles to the opponent	
		//setTurnRight(e.getBearing()+90d);
		setTurnRightRadians(Math.cos(absoluteBearing)); // Simonton-ish way. one byte smaller	
	
		count += (countAdd += (generator.nextInt(2)*2-1) * 3);
		
		setMaxVelocity(8);
		
		setAhead(movementDirection);
		
		// Track the energy level
		previousEnergy = e.getEnergy();
		
		////////////////////Movement Code//////////////////////
		///////////////////////////////////////////////////////
		
		///////////////////////////////////////////////////////
		///////////////////////Gun Code////////////////////////
		
		//Pretty simple...
		setTurnGunRightRadians(Utils.normalRelativeAngle((absoluteBearing += getHeadingRadians()) - 
    		getGunHeadingRadians() + (e.getVelocity() * Math.sin(e.getHeadingRadians() - 
    		absoluteBearing) / 13.2)));
		if (getGunHeat() == 0d) { // Only try to fire if we can-
			setFire(2d); // otherwise we do much worse
		}
		
		///////////////////////Gun Code////////////////////////
		///////////////////////////////////////////////////////
		
		
		
		///////////////////////////////////////////////////////
		/////////////////////Radar Code////////////////////////
			
		setTurnRadarLeftRadians(getRadarTurnRemainingRadians());
		
		
		/////////////////////Radar Code////////////////////////
		///////////////////////////////////////////////////////	
		
		
		
	}
	public void onHitWall(HitWallEvent e) {
		i();
	}
	
	public void i() {
		setMaxVelocity(1);
		movementDirection = -movementDirection;
	}
}