Add XBoard protocol drivers

[bonanza.git] / proce.c

diff --git a/proce.c b/proce.c
index bb41877..94db5d0 100644 (file)
--- a/proce.c
+++ b/proce.c
@@ -90,6 +90,92 @@ procedure( tree_t * restrict ptree )
   return proce_cui( ptree );
 }
 
+#ifdef XBOARD
+#define IF(X) else if(!strcmp(command, X))
+
+int myTime, hisTime, movesPerSession, inc, plyNr;
+char xboard_mode;
+
+static void
+SetTimes(void)
+{ // set white and black times from own and opponent time.
+  int moves;
+  if(movesPerSession <= 0) moves = 35; else {
+    moves = - plyNr/2;
+    while(moves <= 0) moves += movesPerSession;
+  }
+  time_limit = (myTime-inc-30)/(moves+2) + inc;
+  time_max_limit = 3*time_limit;
+  if(time_max_limit > myTime - 30)time_max_limit = myTime - 30; // keep 0.3 sec margin, as Bonanza reads the clock infrequently
+  time_limit *= 10; // msec
+  time_max_limit *= 10;
+Out("# moves=%d, time=%d inc=%d t=%d, max=%d\n", moves, myTime, inc, time_limit, time_max_limit);
+}
+
+static int
+proce_xboard(char *line, const char *command, tree_t * restrict ptree)
+{ // [HGM] added to make Bonanza.exe a native WinBoard engine
+  int value = -100000;
+  static char forceMode = 0;
+  sscanf(line + strlen(command) + 1, "%d", &value);
+Out("# command = '%s'\n", line);
+  if(0) ;
+  IF("protover") { Out("feature variants=\"shogi\" usermove=1 myname=\"Bonanza " BNZ_VER
+                       "\" memory=1 smp=1 debug=1 colors=0 setboard=1 ping=1 done=1\n"); }
+  IF("new")      { forceMode = plyNr = 0; SetTimes(); return 0; }
+  IF("easy")     { strcpy(line, "ponder off"); return 0; }
+  IF("hard")     { strcpy(line, "ponder on");  return 0; }
+  IF("post")     { ; }
+  IF("nopost")   { ; }
+  IF("time")     { sscanf(line+5, "%d", &myTime); }
+  IF("otim")     { sscanf(line+5, "%d", &hisTime); }
+  IF("force")    { forceMode = 1; }
+  IF("go")       { forceMode = 0; SetTimes(); plyNr++; strcpy(line, "move"); return 0; }
+  IF("memory")   { ; }
+  IF("cores")    { sprintf(line, "tlp num %d", value); return 0; }
+  IF("sd")       { sprintf(line, "limit depth %d", value); return 0; }
+  IF("st")       { ; }
+  IF("quit")     { return 0; }
+  IF("analyze")  { ; }
+  IF("exit")     { ; }
+  IF("variant")  { /* ignore, since it must be Shogi */; }
+  IF("setboard") { ; }
+  IF("option")   { ; }
+  IF("level")    { int min, sec; float fsec=0.;
+                   if(sscanf(line+6, "%d %d:%d %f", &movesPerSession, &min, &sec, &fsec) != 4)
+                      sscanf(line+6, "%d %d %f", &movesPerSession, &min, &fsec);
+                   min = 60*min + sec; myTime = hisTime = 100*min; inc = 100 * fsec;
+                 }
+  IF("usermove") { char fromX=line[9], fromY=line[10], toX=line[11], toY=line[12], promo=line[13];
+                   int from;
+{int i,j;for(i=0;i<81;i+=9){printf("# ");for(j=0;j<9;j++)printf(" %3d", BOARD[i+j]);printf("\n");}}
+                   if(forceMode) strcpy(line, "move "), line += 5; else plyNr++, SetTimes();
+                   if(fromY == '@') { // drop
+                       if(fromX >= 'a') fromX += 'A' - 'a';
+                       switch(fromX) { // encode piece
+                         case 'P': fromX = pawn;   break;
+                         case 'L': fromX = lance;  break;
+                         case 'N': fromX = knight; break;
+                         case 'S': fromX = silver; break;
+                         case 'G': fromX = gold;   break;
+                         case 'B': fromX = bishop; break;
+                         case 'R': fromX = rook;   break;
+                       }
+                       sprintf(line, "00%c%c%s", 'a'+'9'-toX, '1'+'9'-toY, astr_table_piece[(int)fromX]);
+                   } else {
+                       from = ('9' - fromY)*9 + (fromX - 'a');
+Out("# from=%d\n",from);
+                       sprintf(line, "%c%c%c%c%s", 'a'+'9'-fromX, '1'+'9'-fromY, 'a'+'9'-toX, '1'+'9'-toY,
+                                 astr_table_piece[abs(BOARD[from]) + (promo == '+' ? promote : 0)]);
+                   }
+                   plyNr++; return 0;
+                 }
+  IF("undo")     { ; }
+  IF("remove")   { ; }
+  IF("ping")     { Out("pong %d\n", value); }
+  return 1;
+}
+#endif
 
 static int
 proce_cui( tree_t * restrict ptree )
@@ -100,6 +186,16 @@ proce_cui( tree_t * restrict ptree )
   token = strtok_r( str_cmdline, str_delimiters, &last );
 
   if ( token == NULL || *token == '#' ) { return 1; }
+#ifdef XBOARD
+  { 
+    if(xboard_mode) {
+      if( proce_xboard(str_cmdline, token, ptree) )  return 1; // command already processed
+      Out("# translated command '%s'\n", str_cmdline);         // command translated for processing by Bonanza
+      token = strtok_r( str_cmdline, str_delimiters, &last );  // redo parsing
+    } else
+    if ( ! strcmp( token, "xboard" ) )  { xboard_mode = 1; game_status |= flag_noprompt; return 1; }
+  }
+#endif
   if ( is_move( token ) ) { return cmd_usrmove( ptree, token, &last ); }
   if ( ! strcmp( token, "s" ) )         { return cmd_move_now(); }
   if ( ! strcmp( token, "beep" ) )      { return cmd_beep( &last); }
@@ -402,6 +498,9 @@ cmd_usrmove( tree_t * restrict ptree, const char *str_move, char **lasts )
        game_status      &= ~flag_pondering;
        game_status      |= flag_thinking;
        n_nobook_move    += 1;
+#ifdef XBOARD
+      if(!xboard_mode)
+#endif
        set_search_limit_time( root_turn );
 
        OutCsaShogi( "info ponder end\n" );