Translate S-Chess gating moves

The only existing UCI S-Chess engine requires the gating square to be
repeated after the gating piece suffix. Also gating-at-Rook castlings
have a different format: they mention the King move. UCI2WB now handles
these move translations.

diff --git a/README.txt b/README.txt
index 578495e..69cb2e8 100644 (file)
--- a/README.txt
+++ b/README.txt
@@ -47,6 +47,9 @@ H.G.Muller
 Change log:\r
 \r
 17/4/2012\r
+Implement move translations required for variant seirawan\r
+\r
+17/4/2012\r
 Make supported-variants string configurable from command line.\r
 \r
 15/4/2012 v1.7\r

diff --git a/UCI2WB.c b/UCI2WB.c
index 7f90ba6..26010a2 100644 (file)
--- a/UCI2WB.c
+++ b/UCI2WB.c
@@ -171,6 +171,8 @@ Engine2GUI()
                     line[13] = '=', line[14] = 0;\r
              }\r
            }\r
+           if(line[9] == 'e' && (line[14] == 'a' || line[14] == 'h')) // seirawan castling + gating at Rook\r
+               line[9] = line[14], line[11] = 'e'; // convert to RxK notation\r
            printf("move %s\n", line+9); // send move to GUI\r
            if(lastScore == 100001 && iniPos[0] != 'f') { printf("%s {mate}\n", stm == WHITE ? "1-0" : "0-1"); computer = NONE; }\r
            stm = WHITE+BLACK - stm;\r
@@ -282,6 +284,11 @@ GUI2Engine()
              else if(line[13] != '\n') line[13] = '+'; // cater to WB 4.4 bug :-(\r
            }\r
            sscanf(line, "usermove %s", command); // strips off linefeed\r
+           if(command[4] && (command[1] == '1' || command[1] == '8')) { // seirawan gating\r
+               command[5] = command[0], command[6] = command[1], command[7] = '\0';\r
+               if(command[2] == 'e' && (command[0] == 'a' || command[0] == 'h'))\r
+                   command[2] = (command[0]+command[2]+1)>>1, command[0] = 'e'; // gating at Rook\r
+           }\r
            stm = WHITE+BLACK - stm;\r
            // when pondering we either continue the ponder search as normal search, or abort it\r
            if(pondering || computer == ANALYZE) {\r
@@ -292,7 +299,8 @@ GUI2Engine()
                }\r
                StopPonder(1);\r
            }\r
-           sscanf(line, "usermove %s", move[moveNr++]); // possibly overwrites ponder move\r
+//         sscanf(line, "usermove %s", move[moveNr++]); // possibly overwrites ponder move\r
+           strcpy(move[moveNr++], command);\r
        }\r
        else if(!strcmp(command, "level")) {\r
            int sec = 0;\r