PacMan/src/gr/auth/ee/dsproject/node/Globals.java

/**
 * @file Globals.java
 * @brief
 *    File containing the Globals class, a helper class for the
 *    vector based evaluation system
 * 
 * @author  Christos Choutouridis   8997 cchoutou@ece.auth.gr
 * @author  Konstantina Tsechelidou 8445 konstsec@ece.auth.gr
 */

package gr.auth.ee.dsproject.node;

import gr.auth.ee.dsproject.pacman.PacmanUtilities;

/**
 * @class   Globals
 * @brief
 *    Contains constants and factors to trick
 *    the Node evaluation algorithm
 */
public class Globals {
   /*
    * Global constants
    */
   public static final int NO_PLACE = -1;    // out of region square
   //public static final int NO_MOVE = -1;
   public static final int INVALID_MOVE = -1;   // invalid move marker
   
   public static final int EVAL_MAX = 100;      // out max evaluation value
   public static final int EVAL_MIN = -100;     // our minimum evaluation value
   public static final int NO_EVAL = EVAL_MIN-1;   // mark the invalid move or no evaluation
   
   
   /*
    * Evaluation settings
    */
   /**
    *  Mixing factor for the minimum distance
    */
   public static final double EVAL_GHOSTDIST_MIN_FACTOR = 0.8;
   public static final double EVAL_LGHOSTDIST_AVER_FACTOR = 1 - EVAL_GHOSTDIST_MIN_FACTOR;

   
   /**
    * Evaluation mixing factor representing how much the ghost distances will
    * affect the final evaluation value
    */
   public static final double EVAL_GHOSTDIST_FACTOR = 0.6;
   /**
    * Evaluation mixing factor representing how much the flag distances will
    * affect the final evaluation value
    */
   public static final double EVAL_FLAGDIST_FACTOR = 1 - EVAL_GHOSTDIST_FACTOR;
   
   /*
    * Tree settings
    */
   public static final int MINMAXTREE_MAX_DEPTH = 2;  // MUST be multiple of 2

   /*
    * In order to find out when a ghost is inside a cavity we manualy
    * define the box limits of the cavity boxes of the current maze here
    * :) 
    */
   public static final int BOXES[][][] = {
      { { 5,  5}, { 8,  8} },
      { { 5, 16}, { 8, 19} },
      { {11,  5}, {14,  8} },
      { {11, 16}, {14, 19} }
   };
   
   public static final int[] FALSE_POS = {-1, -1};
   
   public static final int MAX_DISTANCE = PacmanUtilities.numberOfRows + PacmanUtilities.numberOfColumns - 1;
}