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fix crash using undo/redo after a turn has overwritten pending tiles:

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when redoing need to check that cell is still empty.
This commit is contained in:
Andy2 2010-10-29 20:07:09 -07:00
parent 5b33df4e25
commit 8c7043d42c
1 changed files with 10 additions and 6 deletions
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16
xwords4/common/model.c
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@ -1013,12 +1013,11 @@ model_moveTrayToBoard( ModelCtxt* model, XP_S16 turn, XP_U16 col, XP_U16 row,
XP_Bool
model_redoPendingTiles( ModelCtxt* model, XP_S16 turn )
{
XP_Bool changed = XP_FALSE;
XP_U16 actualCnt = 0;
PlayerCtxt* player = &model->players[turn];
XP_U16 nUndone = player->nUndone;
changed = nUndone > 0;
if ( changed ) {
if ( nUndone > 0 ) {
PendingTile pendingTiles[nUndone];
PendingTile* pt = pendingTiles;
@ -1037,11 +1036,16 @@ model_redoPendingTiles( ModelCtxt* model, XP_S16 turn )
}
foundAt = model_trayContains( model, turn, tile );
XP_ASSERT( foundAt >= 0 );
model_moveTrayToBoard( model, turn, pt->col, pt->row,
foundAt, pt->tile & ~TILE_BLANK_BIT );
if ( !model_getTile( model, pt->col, pt->row, XP_FALSE, turn,
NULL, NULL, NULL, NULL ) ) {
model_moveTrayToBoard( model, turn, pt->col, pt->row,
foundAt, pt->tile & ~TILE_BLANK_BIT );
++actualCnt;
}
}
}
return changed;
return actualCnt > 0;
}
void