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fix null ptr exception using null engine. Logic error was not exposed

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earlier because except in multi-device game the UI would not allow you
to ask an engine-less robot player for a hint.
This commit is contained in:
ehouse 2009-09-25 10:17:35 +00:00
parent f3c27333ec
commit 881639c230
1 changed files with 18 additions and 16 deletions
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34
xwords4/common/board.c
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@ -1441,28 +1441,30 @@ board_requestHint( BoardCtxt* board,
const TrayTileSet* tileSet;
ModelCtxt* model = board->model;
result = !!engine && preflight( board );
if ( !!engine && preflight( board ) ) {
/* undo any current move. otherwise we won't pass the full tray to
the engine. Would it be better, though, to pass the whole tray
regardless where its contents are? */
if ( model_getCurrentMoveCount( model, selPlayer ) > 0 ) {
model_resetCurrentTurn( model, selPlayer );
/* Draw's a no-op on Wince with a null hdc, but it'll draw again.
Should probably define OS_INITS_DRAW on Wince...*/
/* undo any current move. otherwise we won't pass the full tray
to the engine. Would it be better, though, to pass the whole
tray regardless where its contents are? */
if ( model_getCurrentMoveCount( model, selPlayer ) > 0 ) {
model_resetCurrentTurn( model, selPlayer );
/* Draw's a no-op on Wince with a null hdc, but it'll draw again.
Should probably define OS_INITS_DRAW on Wince...*/
#ifdef OS_INITS_DRAW
/* On symbian, it's illegal to draw except from inside the Draw
method. But the move search will probably be so fast that it's
ok to wait until we've found the move anyway. */
redraw = XP_TRUE;
/* On symbian, it's illegal to draw except from inside the
Draw method. But the move search will probably be so fast
that it's ok to wait until we've found the move anyway. */
redraw = XP_TRUE;
#else
board_draw( board );
board_draw( board );
#endif
}
tileSet = model_getPlayerTiles( model, selPlayer );
nTiles = tileSet->nTiles - pti->dividerLoc;
result = nTiles > 0;
}
tileSet = model_getPlayerTiles( model, selPlayer );
nTiles = tileSet->nTiles - pti->dividerLoc;
result = nTiles > 0;
if ( result ) {
#ifdef XWFEATURE_SEARCHLIMIT
BdHintLimits limits;