Difference between revisions of "Yatagan/Source"

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Line 39: Line 39:
 
   {
 
   {
 
   //Local variables.
 
   //Local variables.
−
       int integer = 255; //The integer 255 is cheaper than 256 or 254, for some odd reason.
+
       int integer = 64;
 
       double absoluteBearing;
 
       double absoluteBearing;
 
       double distance;
 
       double distance;
Line 60: Line 60:
 
    
 
    
 
   // search for a match
 
   // search for a match
−
       while((matchPosition = enemyHistory.indexOf(enemyHistory.substring(0, (integer = integer >> 1)/*X >> 1 is equivalent to X / 2*/), 64)) < 0);
+
       while((matchPosition = enemyHistory.indexOf(enemyHistory.substring(0, (integer = integer /= 2)), 64)) < 0);
 
    
 
    
 
       integer = (int)(distance);
 
       integer = (int)(distance);
Line 73: Line 73:
 
    
 
    
 
   //Fire!
 
   //Fire!
−
       setFire(2.33333333333333333333333);
+
       setFire(3);
 
    
 
    
 
   //Infinite radar lock.
 
   //Infinite radar lock.

Revision as of 17:24, 22 March 2013

Development Version

Codesize: 249 

/*
Yatagan 1.0.4 by Sheldor & Skilgannon
The yatagan is a short sabre which was used extensively in the Ottoman Empire.
 
Credits: 
Pattern Matching code from simonton.WeekendObsession_S and mld.Moebius, heavily modified,
and a general thanks to all open source bot authors and contributors to the RoboWiki.
 
Yatagan is open source and released under the terms of the RoboWiki Public Code License (RWPCL) - Version 1.1
see license here: http://robowiki.net/wiki/RWPCL
*/
 
package sheldor.jk;
 
import robocode.*;
import robocode.util.Utils;
 
public class Yatagan extends AdvancedRobot
{
//Global variables.
   static double direction;
   static double enemyEnergy;
 
   static int deathCount;	
 
//En garde!
   public void run()
   {
      setAdjustGunForRobotTurn(true);
   
   //Start spinning radar and initialize direction to infinity.
      setTurnRadarRightRadians(direction = Double.POSITIVE_INFINITY);
   }
 
   public void onScannedRobot(ScannedRobotEvent e)
   {
   //Local variables.
      int integer = 64;
      double absoluteBearing;
      double distance;
      int matchPosition;
   
   //Orbiting/Oscillating/Random movement, all depending on how big the number you multiply the random with is.
      if( (char) ((enemyEnergy - 1.09999999999 
      + chancesOfReversing.charAt(deathCount)*Math.random() 
      - (enemyEnergy = e.getEnergy()))) <= 1 )
      {
         onHitWall(null);
      }		
      setAhead(direction);
   
   //Stay perpendicular to the enemy.
      setTurnRightRadians(Math.cos(absoluteBearing = e.getBearingRadians()) + ((160.0 - (distance = e.getDistance())) * (getVelocity() *4e-4)));
   
   //Pattern Matching.
      enemyHistory = String.valueOf((char) (e.getVelocity() * (Math.sin(e.getHeadingRadians() - (absoluteBearing += getHeadingRadians()))))).concat(enemyHistory);
   
   // search for a match
      while((matchPosition = enemyHistory.indexOf(enemyHistory.substring(0, (integer = integer /= 2)), 64)) < 0);
   
      integer = (int)(distance);
   // calculate aim offset
   
      do { 
         absoluteBearing += ((short) enemyHistory.charAt(--matchPosition)) /  distance;
      } while ((integer -= 13) > 0);
   
   //Aim at the predicted target.
      setTurnGunRightRadians(Utils.normalRelativeAngle(absoluteBearing - getGunHeadingRadians()));
   
   //Fire!
      setFire(3);
   
   //Infinite radar lock.
      setTurnRadarLeftRadians(getRadarTurnRemainingRadians());
   }
 
   public void onDeath(DeathEvent e)
   {
      deathCount++;
   }
 
   public void onHitWall(HitWallEvent e)
   {
   //Reverse direction when the bot hits a wall.
      direction = -direction;
   }
 
 //chance out of 3 for given number of deaths, 'final' saves a few bytes
   private static final String chancesOfReversing = ""
   + (char)60000 + (char)0 + (char)60000 + (char) 0
   //100 rounds of deaths, should be enough?
   // range which will produce 'bullet hit': 3.0999 - 0.0999 = 3
   //required reverse probability, from Toorkild's formula: 0.6*sqrt((20 - 3*2.5)/160) - 0.04 ~= 0.125
   //thus 3/x = 0.125 --> x = 3/0.125 = 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24
   + (char) 24 + (char) 24 + (char) 24 + (char) 24 + (char) 24;
 
 
 
//Preloaded log of enemy movements for pattern matcher so it doesn't need error checking
   static String enemyHistory = ""
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 2
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
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   + (char) 1 + (char) 1 + (char) 1 + (char) 1
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   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char)-2 + (char)-4 + (char)-6
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-7 + (char)-6 + (char)-5 + (char)-4
   + (char)-3 + (char)-2 + (char)-1 + (char)1
   + (char) 2 + (char) 4 + (char) 6 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 7 + (char) 6 + (char) 5 + (char) 4
   + (char) 3 + (char) 2 + (char) 1 + (char) 1;
}

Latest Released Version (1.0.3)

/*
Yatagan 1.0.3 by Sheldor & Skilgannon
The yatagan is a short sabre which was used extensively in the Ottoman Empire.
 
Credits: 
Pattern Matching code from simonton.WeekendObsession_S and mld.Moebius, heavily modified,
and a general thanks to all open source bot authors and contributors to the RoboWiki.
 
Yatagan is open source and released under the terms of the RoboWiki Public Code License (RWPCL) - Version 1.1
see license here: http://robowiki.net/wiki/RWPCL
*/
 
package sheldor.jk;
 
import robocode.*;
import robocode.util.Utils;
 
public class Yatagan extends AdvancedRobot
{
//Global variables.
   static double direction;
   static double enemyEnergy;
 
   static int deathCount;	
 
//En garde!
   public void run()
   {
      setAdjustGunForRobotTurn(true);
   
   //Start spinning radar and initialize direction to infinity.
      setTurnRadarRightRadians(direction = Double.POSITIVE_INFINITY);
   }
 
   public void onScannedRobot(ScannedRobotEvent e)
   {
   //Local variables.
      int integer = 30;
      double absoluteBearing;
      double distance;
      int matchPosition;
   
   //Orbiting/Oscillating/Random movement, all depending on how big the number you multiply the random with is.
      if( (char) ((enemyEnergy - 1.09999999999 
      + chancesOfReversing.charAt(deathCount)*Math.random() 
      - (enemyEnergy = e.getEnergy()))) <= 1 )
      {
         onHitWall(null);
      }		
      setAhead(direction);
   
   //Stay perpendicular to the enemy.
      setTurnRightRadians(Math.cos(absoluteBearing = e.getBearingRadians()) + ((160.0 - (distance = e.getDistance())) * (getVelocity() *4e-4)));
   
   //Pattern Matching.
      enemyHistory = String.valueOf((char) (e.getVelocity() * (Math.sin(e.getHeadingRadians() - (absoluteBearing += getHeadingRadians()))))).concat(enemyHistory);
   
   // search for a match
      while((matchPosition = enemyHistory.indexOf(enemyHistory.substring(0, integer--), 64)) < 0);
   
      integer = (int)(distance);
   // calculate aim offset
   
      do { 
         absoluteBearing += ((short) enemyHistory.charAt(--matchPosition)) /  distance;
      } while ((integer -= 13) > 0);
   
   //Aim at the predicted target.
      setTurnGunRightRadians(Utils.normalRelativeAngle(absoluteBearing - getGunHeadingRadians()));
   
   //Fire!
      setFire(2.33333333333333333333333);
   
   //Infinite radar lock.
      setTurnRadarLeftRadians(getRadarTurnRemainingRadians());
   }
 
   public void onDeath(DeathEvent e)
   {
      deathCount++;
   }
 
   public void onHitWall(HitWallEvent e)
   {
   //Reverse direction when the bot hits a wall.
      direction = -direction;
   }
 
 //chance out of 3 for given number of deaths, 'final' saves a few bytes
   private static final String chancesOfReversing = ""
   + (char)60000 + (char)0 + (char)60000 + (char) 0
   //100 rounds of deaths, should be enough?
   // range which will produce 'bullet hit': 3.0999 - 0.0999 = 3
   //required reverse probability: 0.08
   //thus 3/x = 0.08 --> x = 3/0.08 = 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38
   + (char) 38 + (char) 38 + (char) 38 + (char) 38 + (char) 38;
 
 
 
//Preloaded log of enemy movements for pattern matcher so it doesn't need error checking
   static String enemyHistory = ""
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
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   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char) 1 + (char) 1 + (char) 2
   + (char) 1 + (char) 1 + (char) 1 + (char) 1
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   + (char) 1 + (char) 1 + (char) 1 + (char) 1
   + (char) 1 + (char)-2 + (char)-4 + (char)-6
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-8 + (char)-8 + (char)-8 + (char)-8
   + (char)-7 + (char)-6 + (char)-5 + (char)-4
   + (char)-3 + (char)-2 + (char)-1 + (char)1
   + (char) 2 + (char) 4 + (char) 6 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 8 + (char) 8 + (char) 8 + (char) 8
   + (char) 7 + (char) 6 + (char) 5 + (char) 4
   + (char) 3 + (char) 2 + (char) 1 + (char) 1;
}
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