Fix time forfeits at classical TC

[gnushogi.git] / gnushogi / tcontrl.c

diff --git a/gnushogi/tcontrl.c b/gnushogi/tcontrl.c
index 691f5ae..fda4534 100644 (file)
--- a/gnushogi/tcontrl.c
+++ b/gnushogi/tcontrl.c
@@ -163,17 +163,21 @@ void SetResponseTime(short side)
             {
                 short rtf = in_opening_stage ? 8 : 2;
                 short tcq = in_opening_stage ? 2 : 4;
+                int moves = TimeControl.moves[side];
 
-                TimeControl.clock[side] += TCadd;
+                if(!xboard) /* no pre-add of increment in XBoard mode */
+                    TimeControl.clock[side] += TCadd;
+                if(TCflag == 2 && TCadd == 0) /* sudden death */
+                    moves = (moves < 30 ? 30 : moves);
                 ResponseTime = (TimeControl.clock[side])
-                    / (((TimeControl.moves[side]) * rtf) + 1);
+                    / (moves * rtf + 1);
                 TCleft = (long)ResponseTime / tcq;
                 ResponseTime += TCadd / 2;
             }
 
             if (TimeControl.moves[side] < 5)
             {
-                TCcount = MAXTCCOUNTX - 10;
+                TCcount = MAXTCCOUNTX - 6 - TimeControl.moves[side];
 
                 if (TCcount < 0)
                     TCcount = 0;
@@ -252,10 +256,15 @@ void SetResponseTime(short side)
         else
         {
             /* calculate avg time per move remaining */
-            TimeControl.clock[side] += TCadd;
+            int moves = TimeControl.moves[side];
+
+            if(!xboard) /* no pre-add of increment in XBoard mode */
+                TimeControl.clock[side] += TCadd;
 
+            if(TCflag == 2 && TCadd == 0) /* sudden death */
+                moves = (moves < 30 ? 30 : moves);
             ResponseTime = (TimeControl.clock[side])
-                / (((TimeControl.moves[side]) * 2) + 1);
+                / (moves * 2 + 1);
             TCleft = (int) ResponseTime / 3;
             ResponseTime += TCadd / 2;