Module Name:    src
Committed By:   rillig
Date:           Sun May 29 18:05:25 UTC 2022

Modified Files:
        src/games/gomoku: pickmove.c

Log Message:
gomoku: do not scan the upper border for combos

Adding the '+ 1' to the row coordinate added an offset of 20, while the
intended offset was 1.

No functional change, just a bit faster.


To generate a diff of this commit:
cvs rdiff -u -r1.62 -r1.63 src/games/gomoku/pickmove.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/games/gomoku/pickmove.c
diff -u src/games/gomoku/pickmove.c:1.62 src/games/gomoku/pickmove.c:1.63
--- src/games/gomoku/pickmove.c:1.62	Sun May 29 17:01:42 2022
+++ src/games/gomoku/pickmove.c	Sun May 29 18:05:25 2022
@@ -1,4 +1,4 @@
-/*	$NetBSD: pickmove.c,v 1.62 2022/05/29 17:01:42 rillig Exp $	*/
+/*	$NetBSD: pickmove.c,v 1.63 2022/05/29 18:05:25 rillig Exp $	*/
 
 /*
  * Copyright (c) 1994
@@ -34,7 +34,7 @@
 
 #include <sys/cdefs.h>
 /*	@(#)pickmove.c	8.2 (Berkeley) 5/3/95	*/
-__RCSID("$NetBSD: pickmove.c,v 1.62 2022/05/29 17:01:42 rillig Exp $");
+__RCSID("$NetBSD: pickmove.c,v 1.63 2022/05/29 18:05:25 rillig Exp $");
 
 #include <stdlib.h>
 #include <string.h>
@@ -92,8 +92,8 @@ pickmove(player_color us)
 		return PT((BSZ + 1) / 2, (BSZ + 1) / 2);
 
 	/* initialize all the board values */
-	for (unsigned pos = PT(BSZ, BSZ + 1); pos-- > PT(1, 1); ) {
-		struct spotstr *sp = &board[pos];
+	for (spot_index s = PT(BSZ, BSZ) + 1; s-- > PT(1, 1); ) {
+		struct spotstr *sp = &board[s];
 		sp->s_combo[BLACK].s = 0x601;
 		sp->s_combo[WHITE].s = 0x601;
 		sp->s_level[BLACK] = 255;
@@ -358,8 +358,8 @@ scanframes(int color)
 	}
 
 	/* scan for combos at empty spots */
-	for (unsigned pos = PT(BSZ, BSZ + 1); pos-- > PT(1, 1); ) {
-		sp = &board[pos];
+	for (spot_index s = PT(BSZ, BSZ) + 1; s-- > PT(1, 1); ) {
+		sp = &board[s];
 		for (struct elist *ep = sp->s_empty; ep != NULL; ep = nep) {
 			cbp = ep->e_combo;
 			if (cbp->c_combo.s <= sp->s_combo[color].s) {
@@ -566,8 +566,8 @@ addframes(unsigned int level)
 
 	/* scan for combos at empty spots */
 	int c = curcolor;
-	for (unsigned pos = PT(BSZ, BSZ + 1); pos-- > PT(1, 1); ) {
-		struct spotstr *sp = &board[pos];
+	for (spot_index s = PT(BSZ, BSZ) + 1; s-- > PT(1, 1); ) {
+		struct spotstr *sp = &board[s];
 		for (struct elist *ep = sp->s_empty; ep != NULL; ep = nep) {
 			cbp = ep->e_combo;
 			if (cbp->c_combo.s <= sp->s_combo[c].s) {

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