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Contract.java

/* 
 * Salliere Duplicate Bridge Scorer
 * 
 * Copyright (C) 2007 Matthew Johnson
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License Version 2 as published by
 * the Free Software Foundation.  This program is distributed in the hope that
 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.  You should have received a
 * copy of the GNU General Public License along with this program; if not,
 * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA  02111-1307, USA.
 *
 * To Contact me, please email src@matthew.ath.cx
 *
 */

package cx.ath.matthew.salliere;

import cx.ath.matthew.debug.Debug;
import static cx.ath.matthew.salliere.Gettext._;

import java.text.MessageFormat;

public class Contract
{
   public static final int NONE = 0;
   public static final int NORTH = 1;
   public static final int EAST = 2;
   public static final int ALL = 3;
   double nsscore;
   double ewscore;
   int tricks;
   String contract;
   char declarer;
   boolean beer;
   public Contract(String contract, char declarer, int vulnerability, int tricks) throws ContractParseException, NoContractException
   {
      if (Debug.debug) Debug.print("contract: "+contract+", declarer: "+declarer+", vulnerability: "+vulnerability+", tricks: "+tricks);
      char[] cs = contract.toCharArray();
      if (cs.length == 0) throw new NoContractException();
      int val = 0;
      char den = ' ';
      int doubled = 1; 
      switch (declarer) {
         case 'n':
            declarer = 'N';
            break;
         case 's':
            declarer = 'S';
            break;
         case 'e':
            declarer = 'E';
            break;
         case 'w':
            declarer = 'W';
            break;
      }
      this.declarer = declarer;

      for (int i = 0; i < cs.length; i++) {
         switch (cs[i]) {
            case ' ': continue;
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
               val = (cs[i] - '0');
               if (Debug.debug) Debug.print("cs["+i+"] = "+cs[i]+", val = "+val);
               continue;
            case 'H':
            case 'C':
            case 'D':
            case 'S':
            case 'N':
            case 'P':
               den = cs[i];
               continue;
            case 'h':
               den = 'H';
               continue;
            case 'c':
               den = 'C';
               continue;
            case 'd':
               den = 'D';
               continue;
            case 's':
               den = 'S';
               continue;
            case 'n':
            case 't':
            case 'T':
               den = 'N';
               continue;
            case 'p':
            case 'o':
            case 'O':
            case '.':
               den = 'P';
               continue;
            case 'X':
            case 'x':
               doubled*=2;
               continue;
            case '=':
               tricks = 6+val;
               continue;
            case '-':
            case '+':
               StringBuilder sb = new StringBuilder();
               int j;
               for (j = i+1; j < cs.length && cs[j] >= '0' && cs[j] <= '9'; j++)
                  sb.append(cs[j]);
               if (sb.length() == 0) continue;
               int diff = Integer.parseInt(sb.toString());

               if ('+' == cs[i])
                  tricks = 6+val+diff;
               else
                  tricks = 6+val-diff;
               i = j-1;
               continue;
            case 'B':
            case 'b':
            case 'E':
            case 'e':
            case 'R':
            case 'r':
               beer = true;
               continue;
            default:
               throw new ContractParseException(MessageFormat.format(_("Symbol: {0} not allowed in contract"), new Object[] { cs[i] }));

         }
      }
      if (den == 'P') {
         // pass out board
         if (Debug.debug) Debug.print("Pass out");
         this.nsscore = 0;
         this.ewscore = 0;
         this.tricks = 0; 
         this.contract = "P.O.";
         return;
      }
      if (val < 1 || val > 7) throw new ContractParseException(_("Value must be between 1 & 7"));
      if (den == ' ') throw new ContractParseException(_("No denomination specified in contract"));
      if (doubled > 4) throw new ContractParseException(_("Cannot re-re-double contracts!")); 

      if (Debug.debug) Debug.print(""+val+den+(1<doubled?"X":"")+(2<doubled?"X":"")+" by "+declarer+" making "+tricks);

      int score = 0;
      boolean vul = ((declarer == 'N' || declarer == 'S') && vulnerability == NORTH)
                 || ((declarer == 'E' || declarer == 'W') && vulnerability == EAST)
                 || vulnerability == ALL;
      if (Debug.debug) Debug.print("boolean "+vul+" = (("+declarer+" == 'N' || "+declarer+" == 'S') && "+vulnerability+" == "+NORTH+") || (("+declarer+" == 'E' || "+declarer+" == 'W') && "+vulnerability+" == "+EAST+") || "+vulnerability+" == "+ALL);

      // contract was made
      if (tricks >= (val+6)) {
         if (Debug.debug) Debug.print("MADE");
         // NT bonus
         if ('N' == den) score += 10*doubled;
         if (Debug.debug) Debug.print(score);

         // trick score
         int ts = 0;
         switch (den) {
            case 'C':
            case 'D':
               ts = 20;
               break;
            default:
               ts = 30;
               break;
         }
         score += ts*val*doubled;
         if (Debug.debug) Debug.print(score);

         // partscore/game bonus
         if (score < 100) score += 50;
         else if (vul)
            score += 500;
         else
            score += 300;
         if (Debug.debug) Debug.print(score);

         // double bonus
         if (2 == doubled) score += 50;
         // redouble bonus
         else if (4 == doubled) score += 100;
         if (Debug.debug) Debug.print(score);

         // slams
         if (6 == val && vul) score += 750;
         else if (6 == val) score += 500;
         else if (7 == val && vul) score += 1500;
         else if (7 == val) score += 1000;
         if (Debug.debug) Debug.print(score);

         // overtricks
         int ot = tricks - val - 6;
         if (Debug.debug) Debug.print("ot = "+ot+", doubled = "+doubled+", ts = "+ts);
         if (1 == doubled) {
            if (Debug.debug) Debug.print("diff = "+(ts*ot));
            score += ts*ot;
         } else {
            int vm = vul?2:1;
            if (Debug.debug) Debug.print("vm = "+vm+", diff = "+(100*(doubled-2)*vm*ot));
            score += 100*(doubled/2)*vm*ot;
         }
         if (Debug.debug) Debug.print(score);

         // assign to the correct side
         if ('N' == declarer || 'S' == declarer)
            nsscore = score;
         else
            ewscore = score;
      }
      // contract went off
      else {
         if (Debug.debug) Debug.print("SET");
         for (int i = 1; (val-i+6) >= tricks; i++) {
            switch (i) {
               case 1:
                  score += (vul?100:50)*doubled;
                  break;
               case 2:
               case 3:
                  if (1 == doubled)
                     score += (vul?100:50);
                  else 
                     score += (vul?150:100)*doubled;
                  break;
               default:
                  if (1 == doubled)
                     score += (vul?100:50);
                  else 
                     score += 150*doubled;
            }
         }

         // assign to the correct side
         if ('N' == declarer || 'S' == declarer)
            ewscore = score;
         else
            nsscore = score;
      }

      if (Debug.debug) Debug.print("score = "+score);

      this.contract = ""+val+den+
         (1<doubled?"X":"")+(2<doubled?"X":"");
      if (tricks == val+6)
         this.contract += "=";
      else if (tricks < val+6)
         this.contract += "-"+(val+6-tricks);
      else
         this.contract += "+"+(tricks-val-6);
      if (beer)
         this.contract += "+beer";

      this.tricks = tricks;
   }
   public double getNSScore()
   {
      return nsscore;
   }
   public double getEWScore()
   {
      return ewscore;
   }
   public int getTricks()
   {
      return tricks;
   }
   public String getContract()
   {
      return contract;
   }
   public char getDeclarer()
   {
      return declarer;
   }
   public boolean getBeer()
   {
      return beer;
   }
   public boolean isPassOut()
   {
      return "P.O.".equals(contract);
   }
}

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