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xwords/xwords4/common/model.c

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/* -*- compile-command: "cd ../linux && make -j3 MEMDEBUG=TRUE"; -*- */
/*
* Copyright 2000-2011 by Eric House (xwords@eehouse.org). All rights
* reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* #include <assert.h> */
#include "comtypes.h"
#include "modelp.h"
#include "xwstream.h"
#include "util.h"
#include "pool.h"
#include "game.h"
#include "memstream.h"
#include "strutils.h"
#include "LocalizedStrIncludes.h"
#ifdef CPLUS
extern "C" {
#endif
#define MAX_PASSES 2 /* how many times can all players pass? */
/****************************** prototypes ******************************/
typedef void (*MovePrintFuncPre)(ModelCtxt*, XP_U16, const StackEntry*, void*);
typedef void (*MovePrintFuncPost)(ModelCtxt*, XP_U16, const StackEntry*,
XP_S16, void*);
static void incrPendingTileCountAt( ModelCtxt* model, XP_U16 col,
XP_U16 row );
static void decrPendingTileCountAt( ModelCtxt* model, XP_U16 col,
XP_U16 row );
static void notifyBoardListeners( ModelCtxt* model, XP_U16 turn,
XP_U16 col, XP_U16 row, XP_Bool added );
static void notifyTrayListeners( ModelCtxt* model, XP_U16 turn,
XP_S16 index1, XP_S16 index2 );
static void notifyDictListeners( ModelCtxt* model, XP_S16 playerNum,
DictionaryCtxt* oldDict,
DictionaryCtxt* newDict );
static CellTile getModelTileRaw( const ModelCtxt* model, XP_U16 col,
XP_U16 row );
static void setModelTileRaw( ModelCtxt* model, XP_U16 col, XP_U16 row,
CellTile tile );
static void assignPlayerTiles( ModelCtxt* model, XP_S16 turn,
const TrayTileSet* tiles );
static void makeTileTrade( ModelCtxt* model, XP_S16 player,
const TrayTileSet* oldTiles,
const TrayTileSet* newTiles );
static XP_S16 commitTurn( ModelCtxt* model, XP_S16 turn,
const TrayTileSet* newTiles, XWStreamCtxt* stream,
WordNotifierInfo* wni, XP_Bool useStack );
static void buildModelFromStack( ModelCtxt* model, StackCtxt* stack,
XP_Bool useStack, XP_U16 initial,
XWStreamCtxt* stream, WordNotifierInfo* wni,
MovePrintFuncPre mpfpr,
MovePrintFuncPost mpfpo, void* closure );
static void setPendingCounts( ModelCtxt* model, XP_S16 turn );
static XP_S16 setContains( const TrayTileSet* tiles, Tile tile );
static void loadPlayerCtxt( const ModelCtxt* model, XWStreamCtxt* stream,
XP_U16 version, PlayerCtxt* pc );
static void writePlayerCtxt( const ModelCtxt* model, XWStreamCtxt* stream,
const PlayerCtxt* pc );
static XP_U16 model_getRecentPassCount( ModelCtxt* model );
static XP_Bool recordWord( const XP_UCHAR* word, XP_Bool isLegal,
const DictionaryCtxt* dict,
#ifdef XWFEATURE_BOARDWORDS
const MoveInfo* movei, XP_U16 start, XP_U16 end,
#endif
void* clsur );
/*****************************************************************************
*
****************************************************************************/
ModelCtxt*
model_make( MPFORMAL DictionaryCtxt* dict, const PlayerDicts* dicts,
XW_UtilCtxt* util, XP_U16 nCols )
{
ModelCtxt* result = (ModelCtxt*)XP_MALLOC( mpool, sizeof( *result ) );
if ( result != NULL ) {
XP_MEMSET( result, 0, sizeof(*result) );
MPASSIGN(result->vol.mpool, mpool);
result->vol.util = util;
result->vol.wni.proc = recordWord;
result->vol.wni.closure = &result->vol.rwi;
model_setSize( result, nCols );
XP_ASSERT( !!util->gameInfo );
result->vol.gi = util->gameInfo;
model_setDictionary( result, dict );
model_setPlayerDicts( result, dicts );
}
return result;
} /* model_make */
ModelCtxt*
model_makeFromStream( MPFORMAL XWStreamCtxt* stream, DictionaryCtxt* dict,
const PlayerDicts* dicts, XW_UtilCtxt* util )
{
ModelCtxt* model;
XP_U16 nCols;
XP_U16 ii;
XP_Bool hasDict;
XP_U16 nPlayers;
XP_U16 version = stream_getVersion( stream );
XP_ASSERT( !!dict || !!dicts );
if ( 0 ) {
#ifdef STREAM_VERS_BIGBOARD
} else if ( STREAM_VERS_BIGBOARD <= version ) {
nCols = (XP_U16)stream_getBits( stream, NUMCOLS_NBITS_5 );
#endif
} else {
nCols = (XP_U16)stream_getBits( stream, NUMCOLS_NBITS_4 );
(void)stream_getBits( stream, NUMCOLS_NBITS_4 );
}
XP_ASSERT( MAX_COLS >= nCols );
hasDict = (version >= STREAM_VERS_MODEL_NO_DICT)
? XP_FALSE : stream_getBits( stream, 1 );
nPlayers = (XP_U16)stream_getBits( stream, NPLAYERS_NBITS );
if ( hasDict ) {
DictionaryCtxt* savedDict = util_makeEmptyDict( util );
dict_loadFromStream( savedDict, stream );
dict_destroy( savedDict );
}
model = model_make( MPPARM(mpool) dict, dicts, util, nCols );
model->nPlayers = nPlayers;
#ifdef STREAM_VERS_BIGBOARD
if ( STREAM_VERS_BIGBOARD <= version ) {
model->vol.nBonuses = stream_getBits( stream, 7 );
if ( 0 < model->vol.nBonuses ) {
model->vol.bonuses =
XP_MALLOC( model->vol.mpool,
model->vol.nBonuses * sizeof( model->vol.bonuses[0] ) );
for ( ii = 0; ii < model->vol.nBonuses; ++ii ) {
model->vol.bonuses[ii] = stream_getBits( stream, 4 );
}
}
}
#endif
stack_loadFromStream( model->vol.stack, stream );
buildModelFromStack( model, model->vol.stack, XP_FALSE, 0,
(XWStreamCtxt*)NULL, (WordNotifierInfo*)NULL,
(MovePrintFuncPre)NULL, (MovePrintFuncPost)NULL,
NULL );
for ( ii = 0; ii < model->nPlayers; ++ii ) {
loadPlayerCtxt( model, stream, version, &model->players[ii] );
setPendingCounts( model, ii );
invalidateScore( model, ii );
}
return model;
} /* model_makeFromStream */
void
model_writeToStream( const ModelCtxt* model, XWStreamCtxt* stream )
{
XP_U16 ii;
#ifdef STREAM_VERS_BIGBOARD
XP_ASSERT( STREAM_VERS_BIGBOARD <= stream_getVersion( stream ) );
stream_putBits( stream, NUMCOLS_NBITS_5, model->nCols );
#else
stream_putBits( stream, NUMCOLS_NBITS_4, model->nCols );
stream_putBits( stream, NUMCOLS_NBITS_4, model->nRows );
#endif
/* we have two bits for nPlayers, so range must be 0..3, not 1..4 */
stream_putBits( stream, NPLAYERS_NBITS, model->nPlayers );
#ifdef STREAM_VERS_BIGBOARD
stream_putBits( stream, 7, model->vol.nBonuses );
for ( ii = 0; ii < model->vol.nBonuses; ++ii ) {
stream_putBits( stream, 4, model->vol.bonuses[ii] );
}
#endif
stack_writeToStream( model->vol.stack, stream );
for ( ii = 0; ii < model->nPlayers; ++ii ) {
writePlayerCtxt( model, stream, &model->players[ii] );
}
} /* model_writeToStream */
#ifdef TEXT_MODEL
void
model_writeToTextStream( const ModelCtxt* model, XWStreamCtxt* stream )
{
const DictionaryCtxt* dict = model_getDictionary( model );
int width = dict_getMaxWidth( dict );
XP_UCHAR empty[4] = {0};
XP_U16 ii;
XP_U16 col, row;
for ( ii = 0; ii < width; ++ii ) {
empty[ii] = '.';
}
for ( row = 0; row < model->nRows; ++row ) {
XP_UCHAR buf[256];
XP_U16 len = 0;
for ( col = 0; col < model->nCols; ++col ) {
XP_Bool isBlank;
Tile tile;
if ( model_getTile( model, col, row, XP_FALSE, -1, &tile,
&isBlank, NULL, NULL ) ) {
const XP_UCHAR* face = dict_getTileString( dict, tile );
XP_UCHAR lower[1+XP_STRLEN(face)];
XP_STRNCPY( lower, face, sizeof(lower) );
if ( isBlank ) {
XP_LOWERSTR( lower );
}
len += snprintf( &buf[len], sizeof(buf) - len, "%*s",
width, lower );
} else {
len += snprintf( &buf[len], sizeof(buf) - len, "%s", empty );
}
}
buf[len++] = '\n';
buf[len] = '\0';
stream_catString( stream, buf );
}
}
#endif
void
model_setSize( ModelCtxt* model, XP_U16 nCols )
{
ModelVolatiles vol = model->vol; /* save vol so we don't wipe it out */
XP_U16 oldSize = model->nCols; /* zero when called from model_make() */
XP_ASSERT( MAX_COLS >= nCols );
XP_ASSERT( model != NULL );
XP_MEMSET( model, 0, sizeof( *model ) );
model->nCols = nCols;
model->nRows = nCols;
model->vol = vol;
if ( oldSize != nCols ) {
if ( !!model->vol.tiles ) {
XP_FREE( model->vol.mpool, model->vol.tiles );
}
model->vol.tiles = XP_MALLOC( model->vol.mpool, TILES_SIZE(model, nCols) );
}
XP_MEMSET( model->vol.tiles, TILE_EMPTY_BIT, TILES_SIZE(model, nCols) );
if ( !!model->vol.stack ) {
stack_init( model->vol.stack );
} else {
model->vol.stack = stack_make( MPPARM(model->vol.mpool)
util_getVTManager(model->vol.util));
}
} /* model_setSize */
void
model_destroy( ModelCtxt* model )
{
stack_destroy( model->vol.stack );
/* is this it!? */
if ( !!model->vol.bonuses ) {
XP_FREE( model->vol.mpool, model->vol.bonuses );
}
XP_FREE( model->vol.mpool, model->vol.tiles );
XP_FREE( model->vol.mpool, model );
} /* model_destroy */
XP_U32
model_getHash( const ModelCtxt* model, XP_U16 version )
{
#ifndef STREAM_VERS_HASHSTREAM
XP_USE(version);
#endif
StackCtxt* stack = model->vol.stack;
XP_ASSERT( !!stack );
XP_U32 hash =
#ifdef STREAM_VERS_HASHSTREAM
STREAM_VERS_HASHSTREAM <= version ?
stack_getHash( stack ) :
#endif
stack_getHashOld( stack );
/* XP_LOGF( "%s(version=%x)=>%.8X", __func__, version, */
/* (unsigned int)hash ); */
return hash;
}
XP_Bool
model_hashMatches( const ModelCtxt* model, const XP_U32 hash )
{
StackCtxt* stack = model->vol.stack;
XP_Bool matches =
#ifdef STREAM_VERS_HASHSTREAM
(hash == stack_getHash( stack )) ||
#endif
(hash == stack_getHashOld( stack ));
return matches;
}
#ifdef STREAM_VERS_BIGBOARD
void
model_setSquareBonuses( ModelCtxt* model, XWBonusType* bonuses, XP_U16 nBonuses )
{
#ifdef DEBUG
XP_U16 nCols = (1 + model_numCols( model )) / 2;
XP_ASSERT( 0 < nCols );
XP_U16 wantLen = 0;
while ( nCols > 0 ) {
wantLen += nCols--;
}
XP_ASSERT( wantLen == nBonuses );
#endif
if ( !!model->vol.bonuses ) {
XP_FREE( model->vol.mpool, model->vol.bonuses );
}
model->vol.bonuses = XP_MALLOC( model->vol.mpool,
nBonuses * sizeof(model->vol.bonuses[0]) );
XP_MEMCPY( model->vol.bonuses, bonuses,
nBonuses * sizeof(model->vol.bonuses[0]) );
model->vol.nBonuses = nBonuses;
}
#endif
XWBonusType
model_getSquareBonus( const ModelCtxt* model, XP_U16 col, XP_U16 row )
{
XWBonusType result = BONUS_NONE;
#ifdef STREAM_VERS_BIGBOARD
const ModelCtxt* bonusOwner = model->loaner? model->loaner : model;
#endif
if ( 0 ) {
#ifdef STREAM_VERS_BIGBOARD
} else if ( !!bonusOwner->vol.bonuses ) {
XP_U16 nCols = model_numCols( model );
XP_U16 ii;
if ( col > (nCols/2) ) {
col = nCols - 1 - col;
}
if ( row > (nCols/2) ) {
row = nCols - 1 - row;
}
if ( col > row ) {
XP_U16 tmp = col;
col = row;
row = tmp;
}
for ( ii = 1; ii <= row; ++ii ) {
col += ii;
}
if ( col < bonusOwner->vol.nBonuses ) {
result = bonusOwner->vol.bonuses[col];
}
#endif
} else {
result = util_getSquareBonus( model->vol.util, model_numRows(model),
col, row );
}
return result;
}
static void
modelAddEntry( ModelCtxt* model, XP_U16 indx, const StackEntry* entry,
XP_Bool useStack, XWStreamCtxt* stream,
WordNotifierInfo* wni, MovePrintFuncPre mpf_pre,
MovePrintFuncPost mpf_post, void* closure )
{
XP_S16 moveScore = 0; /* keep compiler happy */
if ( !!mpf_pre ) {
(*mpf_pre)( model, indx, entry, closure );
}
switch ( entry->moveType ) {
case MOVE_TYPE:
model_makeTurnFromMoveInfo( model, entry->playerNum,
&entry->u.move.moveInfo);
moveScore = commitTurn( model, entry->playerNum,
&entry->u.move.newTiles,
stream, wni, useStack );
break;
case TRADE_TYPE:
makeTileTrade( model, entry->playerNum, &entry->u.trade.oldTiles,
&entry->u.trade.newTiles );
break;
case ASSIGN_TYPE:
assignPlayerTiles( model, entry->playerNum,
&entry->u.assign.tiles );
break;
case PHONY_TYPE: /* nothing to add */
model_makeTurnFromMoveInfo( model, entry->playerNum,
&entry->u.phony.moveInfo);
/* do something here to cause it to print */
(void)getCurrentMoveScoreIfLegal( model, entry->playerNum, stream,
wni, &moveScore );
moveScore = 0;
model_resetCurrentTurn( model, entry->playerNum );
break;
default:
XP_ASSERT(0);
}
if ( !!mpf_post ) {
(*mpf_post)( model, indx, entry, moveScore, closure );
}
} /* modelAddEntry */
static void
buildModelFromStack( ModelCtxt* model, StackCtxt* stack, XP_Bool useStack,
XP_U16 initial, XWStreamCtxt* stream,
WordNotifierInfo* wni, MovePrintFuncPre mpf_pre,
MovePrintFuncPost mpf_post, void* closure )
{
StackEntry entry;
XP_U16 ii;
for ( ii = initial; stack_getNthEntry( stack, ii, &entry ); ++ii ) {
modelAddEntry( model, ii, &entry, useStack, stream, wni,
mpf_pre, mpf_post, closure );
}
} /* buildModelFromStack */
void
model_setNPlayers( ModelCtxt* model, XP_U16 nPlayers )
{
model->nPlayers = nPlayers;
} /* model_setNPlayers */
XP_U16
model_getNPlayers( const ModelCtxt* model )
{
return model->nPlayers;
}
static void
setStackBits( ModelCtxt* model, const DictionaryCtxt* dict )
{
if ( NULL != dict ) {
XP_U16 nFaces = dict_numTileFaces( dict );
XP_ASSERT( !!model->vol.stack );
stack_setBitsPerTile( model->vol.stack, nFaces <= 32? 5 : 6 );
}
}
void
model_setDictionary( ModelCtxt* model, DictionaryCtxt* dict )
{
DictionaryCtxt* oldDict = model->vol.dict;
model->vol.dict = dict;
if ( !!dict ) {
setStackBits( model, dict );
notifyDictListeners( model, -1, oldDict, dict );
}
} /* model_setDictionary */
void
model_setPlayerDicts( ModelCtxt* model, const PlayerDicts* dicts )
{
if ( !!dicts ) {
XP_U16 ii;
#ifdef DEBUG
DictionaryCtxt* gameDict = model_getDictionary( model );
#endif
for ( ii = 0; ii < VSIZE(dicts->dicts); ++ii ) {
DictionaryCtxt* oldDict = model->vol.dicts.dicts[ii];
DictionaryCtxt* newDict = dicts->dicts[ii];
if ( oldDict != newDict ) {
XP_ASSERT( NULL == newDict || NULL == gameDict
|| dict_tilesAreSame( gameDict, newDict ) );
model->vol.dicts.dicts[ii] = newDict;
notifyDictListeners( model, ii, oldDict, newDict );
setStackBits( model, newDict );
}
}
}
}
DictionaryCtxt*
model_getDictionary( const ModelCtxt* model )
{
XP_U16 ii;
DictionaryCtxt* result = model->vol.dict;
for ( ii = 0; !result && ii < VSIZE(model->vol.dicts.dicts); ++ii ) {
result = model->vol.dicts.dicts[ii];
}
return result;
} /* model_getDictionary */
DictionaryCtxt*
model_getPlayerDict( const ModelCtxt* model, XP_U16 playerNum )
{
DictionaryCtxt* dict = model->vol.dicts.dicts[playerNum];
if ( NULL == dict ) {
dict = model->vol.dict;
}
XP_ASSERT( !!dict );
return dict;
}
static void
destroyNotNull( DictionaryCtxt** dictp )
{
if ( !!*dictp ) {
dict_destroy( *dictp );
*dictp = NULL;
}
}
void
model_destroyDicts( ModelCtxt* model )
{
XP_U16 ii;
for ( ii = 0; ii < VSIZE(model->vol.dicts.dicts); ++ii ) {
destroyNotNull( &model->vol.dicts.dicts[ii] );
}
destroyNotNull( &model->vol.dict );
}
static XP_Bool
getPendingTileFor( const ModelCtxt* model, XP_U16 turn, XP_U16 col, XP_U16 row,
CellTile* cellTile )
{
XP_Bool found = XP_FALSE;
const PlayerCtxt* player;
const PendingTile* pendings;
XP_U16 ii;
XP_ASSERT( turn < VSIZE(model->players) );
player = &model->players[turn];
pendings = player->pendingTiles;
for ( ii = 0; ii < player->nPending; ++ii ) {
if ( (pendings->col == col) && (pendings->row == row) ) {
*cellTile = pendings->tile;
found = XP_TRUE;
XP_ASSERT ( (*cellTile & TILE_EMPTY_BIT) == 0 );
break;
}
++pendings;
}
return found;
} /* getPendingTileFor */
XP_Bool
model_getTile( const ModelCtxt* model, XP_U16 col, XP_U16 row,
XP_Bool getPending, XP_S16 turn, Tile* tileP, XP_Bool* isBlank,
XP_Bool* pendingP, XP_Bool* recentP )
{
CellTile cellTile = getModelTileRaw( model, col, row );
XP_Bool pending = XP_FALSE;
if ( (cellTile & TILE_PENDING_BIT) != 0 ) {
if ( getPending
&& getPendingTileFor( model, turn, col, row, &cellTile ) ) {
/* it's pending, but caller doesn't want to see it */
pending = XP_TRUE;
} else {
cellTile = EMPTY_TILE;
}
}
/* this needs to happen after the above b/c cellTile gets changed */
if ( (cellTile & TILE_EMPTY_BIT) != 0 ) {
return XP_FALSE;
}
if ( NULL != tileP ) {
*tileP = cellTile & TILE_VALUE_MASK;
}
if ( NULL != isBlank ) {
*isBlank = IS_BLANK(cellTile);
}
if ( NULL != pendingP ) {
*pendingP = pending;
}
if ( !!recentP ) {
*recentP = (cellTile & PREV_MOVE_BIT) != 0;
}
return XP_TRUE;
} /* model_getTile */
void
model_listPlacedBlanks( ModelCtxt* model, XP_U16 turn,
XP_Bool includePending, BlankQueue* bcp )
{
XP_U16 nCols = model_numCols( model );
XP_U16 nRows = model_numRows( model );
XP_U16 col, row;
XP_U16 nBlanks = 0;
for ( row = 0; row < nRows; ++row ) {
for ( col = 0; col < nCols; ++col ) {
CellTile cellTile = getModelTileRaw( model, col, row );
if ( (cellTile & TILE_PENDING_BIT) != 0 ) {
if ( !includePending ||
!getPendingTileFor( model, turn, col, row, &cellTile ) ) {
continue;
}
}
if ( (cellTile & TILE_BLANK_BIT) != 0 ) {
bcp->col[nBlanks] = (XP_U8)col;
bcp->row[nBlanks] = (XP_U8)row;
++nBlanks;
}
}
}
bcp->nBlanks = nBlanks;
} /* model_listPlacedBlanks */
void
model_foreachPrevCell( ModelCtxt* model, BoardListener bl, void* closure )
{
XP_U16 col, row;
for ( col = 0; col < model->nCols; ++col ) {
for ( row = 0; row < model->nRows; ++row) {
CellTile tile = getModelTileRaw( model, col, row );
if ( (tile & PREV_MOVE_BIT) != 0 ) {
(*bl)( closure, (XP_U16)CELL_OWNER(tile), col, row, XP_FALSE );
}
}
}
} /* model_foreachPrevCell */
static void
clearAndNotify( void* closure, XP_U16 XP_UNUSED(turn), XP_U16 col, XP_U16 row,
XP_Bool XP_UNUSED(added) )
{
ModelCtxt* model = (ModelCtxt*)closure;
CellTile tile = getModelTileRaw( model, col, row );
setModelTileRaw( model, col, row, (CellTile)(tile & ~PREV_MOVE_BIT) );
notifyBoardListeners( model, (XP_U16)CELL_OWNER(tile), col, row,
XP_FALSE );
} /* clearAndNotify */
static void
clearLastMoveInfo( ModelCtxt* model )
{
model_foreachPrevCell( model, clearAndNotify, model );
} /* clearLastMoveInfo */
static void
invalLastMove( ModelCtxt* model )
{
if ( !!model->vol.boardListenerFunc ) {
model_foreachPrevCell( model, model->vol.boardListenerFunc,
model->vol.boardListenerData );
}
} /* invalLastMove */
void
model_foreachPendingCell( ModelCtxt* model, XP_S16 turn,
BoardListener bl, void* closure )
{
PendingTile* pt;
PlayerCtxt* player;
XP_S16 count;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
count = player->nPending;
for ( pt = player->pendingTiles; count--; ++pt ) {
(*bl)( closure, turn, pt->col, pt->row, XP_FALSE );
}
} /* model_invalPendingCells */
XP_U16
model_getCellOwner( ModelCtxt* model, XP_U16 col, XP_U16 row )
{
CellTile tile;
XP_U16 result;
tile = getModelTileRaw( model, col, row );
result = CELL_OWNER(tile);
return result;
} /* model_getCellOwner */
static void
setModelTileRaw( ModelCtxt* model, XP_U16 col, XP_U16 row, CellTile tile )
{
XP_ASSERT( col < model->nCols );
XP_ASSERT( row < model->nRows );
model->vol.tiles[(row*model->nCols) + col] = tile;
} /* model_setTile */
static CellTile
getModelTileRaw( const ModelCtxt* model, XP_U16 col, XP_U16 row )
{
XP_U16 nCols = model->nCols;
XP_ASSERT( model->nRows == nCols );
XP_ASSERT( col < nCols );
XP_ASSERT( row < nCols );
return model->vol.tiles[(row*nCols) + col];
} /* getModelTileRaw */
static void
undoFromMoveInfo( ModelCtxt* model, XP_U16 turn, Tile blankTile, MoveInfo* mi )
{
XP_U16 col, row, ii;
XP_U16* other;
MoveInfoTile* tinfo;
col = row = mi->commonCoord;
other = mi->isHorizontal? &col: &row;
for ( tinfo = mi->tiles, ii = 0; ii < mi->nTiles; ++tinfo, ++ii ) {
Tile tile;
*other = tinfo->varCoord;
tile = tinfo->tile;
setModelTileRaw( model, col, row, EMPTY_TILE );
notifyBoardListeners( model, turn, col, row, XP_FALSE );
--model->vol.nTilesOnBoard;
if ( IS_BLANK(tile) ) {
tile = blankTile;
}
model_addPlayerTile( model, turn, -1, tile );
}
adjustScoreForUndone( model, mi, turn );
} /* undoFromMoveInfo */
/* Remove tiles in a set from tray and put them back in the pool.
*/
static void
replaceNewTiles( ModelCtxt* model, PoolContext* pool, XP_U16 turn,
TrayTileSet* tileSet )
{
Tile* t;
XP_U16 ii, nTiles;
for ( t = tileSet->tiles, ii = 0, nTiles = tileSet->nTiles;
ii < nTiles; ++ii ) {
XP_S16 index;
Tile tile = *t++;
index = model_trayContains( model, turn, tile );
XP_ASSERT( index >= 0 );
model_removePlayerTile( model, turn, index );
}
if ( !!pool ) {
pool_replaceTiles( pool, tileSet);
}
} /* replaceNewTiles */
/* Turn the most recent move into a phony.
*/
void
model_rejectPreviousMove( ModelCtxt* model, PoolContext* pool, XP_U16* turn )
{
StackCtxt* stack = model->vol.stack;
StackEntry entry;
Tile blankTile = dict_getBlankTile( model_getDictionary(model) );
stack_popEntry( stack, &entry );
XP_ASSERT( entry.moveType == MOVE_TYPE );
replaceNewTiles( model, pool, entry.playerNum, &entry.u.move.newTiles );
undoFromMoveInfo( model, entry.playerNum, blankTile,
&entry.u.move.moveInfo );
stack_addPhony( stack, entry.playerNum, &entry.u.phony.moveInfo );
*turn = entry.playerNum;
} /* model_rejectPreviousMove */
/* Undo a move, but only if it's the move we're expecting to undo (as
* indicated by *moveNumP, if >= 0).
*/
XP_Bool
model_undoLatestMoves( ModelCtxt* model, PoolContext* pool,
XP_U16 nMovesSought, XP_U16* turnP, XP_S16* moveNumP )
{
StackCtxt* stack = model->vol.stack;
XP_Bool success;
XP_S16 moveSought = !!moveNumP ? *moveNumP : -1;
XP_U16 nStackEntries = stack_getNEntries( stack );
if ( (0 <= moveSought && moveSought >= nStackEntries)
|| ( nStackEntries < nMovesSought )
|| ( nStackEntries <= model->nPlayers ) ) {
success = XP_FALSE;
} else {
XP_U16 nMovesUndone = 0;
XP_U16 turn;
StackEntry entry;
Tile blankTile = dict_getBlankTile( model_getDictionary(model) );
for ( ; ; ) {
success = stack_popEntry( stack, &entry );
if ( !success ) {
break;
}
++nMovesUndone;
turn = entry.playerNum;
model_resetCurrentTurn( model, turn );
if ( entry.moveType == MOVE_TYPE ) {
/* get the tiles out of player's tray and back into the
pool */
replaceNewTiles( model, pool, turn, &entry.u.move.newTiles);
undoFromMoveInfo( model, turn, blankTile,
&entry.u.move.moveInfo );
} else if ( entry.moveType == TRADE_TYPE ) {
if ( pool != NULL ) {
/* If there's no pool, assume we're doing this for
scoring purposes only. */
replaceNewTiles( model, pool, turn,
&entry.u.trade.newTiles );
pool_removeTiles( pool, &entry.u.trade.oldTiles );
assignPlayerTiles( model, turn, &entry.u.trade.oldTiles );
}
} else if ( entry.moveType == PHONY_TYPE ) {
/* nothing to do, since nothing happened */
} else {
XP_ASSERT( entry.moveType == ASSIGN_TYPE );
success = XP_FALSE;
break;
}
/* exit if we've undone what we're supposed to. If the sought
stack height has been provided, use that. Otherwise go by move
count. */
if ( 0 <= moveSought ) {
if ( moveSought == entry.moveNum ) {
break;
}
} else if ( nMovesSought == nMovesUndone ) {
break;
}
}
/* Find the first MOVE still on the stack and highlight its tiles since
they're now the most recent move. Trades and lost turns ignored. */
for ( nStackEntries = stack_getNEntries( stack );
0 < nStackEntries; --nStackEntries ) {
StackEntry entry;
if ( !stack_getNthEntry( stack, nStackEntries - 1, &entry ) ) {
break;
}
if ( entry.moveType == ASSIGN_TYPE ) {
break;
} else if ( entry.moveType == MOVE_TYPE ) {
XP_U16 nTiles = entry.u.move.moveInfo.nTiles;
XP_U16 col, row;
XP_U16* varies;
if ( entry.u.move.moveInfo.isHorizontal ) {
row = entry.u.move.moveInfo.commonCoord;
varies = &col;
} else {
col = entry.u.move.moveInfo.commonCoord;
varies = &row;
}
while ( nTiles-- ) {
CellTile tile;
*varies = entry.u.move.moveInfo.tiles[nTiles].varCoord;
tile = getModelTileRaw( model, col, row );
setModelTileRaw( model, col, row,
(CellTile)(tile | PREV_MOVE_BIT) );
notifyBoardListeners( model, entry.playerNum, col, row,
XP_FALSE );
}
break;
}
}
/* We fail if we didn't undo as many as requested UNLESS the lower
limit is the trumping target/test. */
if ( 0 <= moveSought ) {
if ( moveSought != entry.moveNum ) {
success = XP_FALSE;
}
} else {
if ( nMovesUndone != nMovesSought ) {
success = XP_FALSE;
}
}
if ( success ) {
if ( !!turnP ) {
*turnP = turn;
}
if ( !!moveNumP ) {
*moveNumP = entry.moveNum;
}
} else {
while ( nMovesUndone-- ) {
/* redo isn't enough here: pool's got tiles in it!! */
XP_ASSERT( 0 );
(void)stack_redo( stack, NULL );
}
}
}
return success;
} /* model_undoLatestMoves */
void
model_trayToStream( ModelCtxt* model, XP_S16 turn, XWStreamCtxt* stream )
{
PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
traySetToStream( stream, &player->trayTiles );
} /* model_trayToStream */
void
model_currentMoveToStream( ModelCtxt* model, XP_S16 turn,
XWStreamCtxt* stream )
{
PlayerCtxt* player;
XP_S16 numTiles;
XP_U16 nColsNBits;
#ifdef STREAM_VERS_BIGBOARD
nColsNBits = 16 <= model_numCols( model ) ? NUMCOLS_NBITS_5
: NUMCOLS_NBITS_4;
#else
nColsNBits = NUMCOLS_NBITS_4;
#endif
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
numTiles = player->nPending;
stream_putBits( stream, NTILES_NBITS, numTiles );
while ( numTiles-- ) {
Tile tile;
XP_U16 col, row;
XP_Bool isBlank;
model_getCurrentMoveTile( model, turn, &numTiles, &tile,
&col, &row, &isBlank );
XP_ASSERT( numTiles >= 0 );
stream_putBits( stream, TILE_NBITS, tile );
stream_putBits( stream, nColsNBits, col );
stream_putBits( stream, nColsNBits, row );
stream_putBits( stream, 1, isBlank );
}
} /* model_currentMoveToStream */
/* Take stream as the source of info about what tiles to move from tray to
* board. Undo any current move first -- a player on this device might be
* using the board as scratch during another player's turn. For each tile,
* assert that it's in the tray, remove it from the tray, and place it on the
* board.
*/
XP_Bool
model_makeTurnFromStream( ModelCtxt* model, XP_U16 playerNum,
XWStreamCtxt* stream )
{
XP_Bool success = XP_TRUE;
XP_U16 numTiles, ii;
Tile blank = dict_getBlankTile( model_getDictionary(model) );
XP_U16 nColsNBits;
#ifdef STREAM_VERS_BIGBOARD
nColsNBits = 16 <= model_numCols( model ) ? NUMCOLS_NBITS_5
: NUMCOLS_NBITS_4;
#else
nColsNBits = NUMCOLS_NBITS_4;
#endif
model_resetCurrentTurn( model, playerNum );
if ( success ) {
numTiles = (XP_U16)stream_getBits( stream, NTILES_NBITS );
XP_LOGF( "%s: numTiles=%d", __func__, numTiles );
Tile tileFaces[numTiles];
XP_U16 cols[numTiles];
XP_U16 rows[numTiles];
XP_Bool isBlanks[numTiles];
Tile moveTiles[numTiles];
TrayTileSet curTiles = *model_getPlayerTiles( model, playerNum );
for ( ii = 0; success && ii < numTiles; ++ii ) {
tileFaces[ii] = (Tile)stream_getBits( stream, TILE_NBITS );
cols[ii] = (XP_U16)stream_getBits( stream, nColsNBits );
rows[ii] = (XP_U16)stream_getBits( stream, nColsNBits );
isBlanks[ii] = stream_getBits( stream, 1 );
if ( isBlanks[ii] ) {
moveTiles[ii] = blank;
} else {
moveTiles[ii] = tileFaces[ii];
}
XP_S16 index = setContains( &curTiles, moveTiles[ii] );
if ( 0 <= index ) {
removeTile( &curTiles, index );
} else {
success = XP_FALSE;
}
}
if ( success ) {
for ( ii = 0; ii < numTiles; ++ii ) {
XP_S16 foundAt = model_trayContains( model, playerNum, moveTiles[ii] );
if ( foundAt == -1 ) {
XP_ASSERT( EMPTY_TILE == model_getPlayerTile(model, playerNum,
0));
/* Does this ever happen? */
XP_LOGF( "%s: found empty tile and it's ok", __func__ );
(void)model_removePlayerTile( model, playerNum, -1 );
model_addPlayerTile( model, playerNum, -1, moveTiles[ii] );
}
model_moveTrayToBoard( model, playerNum, cols[ii], rows[ii], foundAt,
tileFaces[ii] );
}
}
}
return success;
} /* model_makeTurnFromStream */
void
model_makeTurnFromMoveInfo( ModelCtxt* model, XP_U16 playerNum,
const MoveInfo* newMove )
{
XP_U16 col, row, ii;
XP_U16* other;
const MoveInfoTile* tinfo;
Tile blank;
XP_U16 numTiles;
blank = dict_getBlankTile( model_getDictionary( model ) );
numTiles = newMove->nTiles;
col = row = newMove->commonCoord; /* just assign both */
other = newMove->isHorizontal? &col: &row;
for ( tinfo = newMove->tiles, ii = 0; ii < numTiles; ++ii, ++tinfo ) {
XP_S16 tileIndex;
Tile tile = tinfo->tile;
if ( IS_BLANK(tile) ) {
tile = blank;
}
tileIndex = model_trayContains( model, playerNum, tile );
XP_ASSERT( tileIndex >= 0 );
*other = tinfo->varCoord;
model_moveTrayToBoard( model, (XP_S16)playerNum, col, row, tileIndex,
(Tile)(tinfo->tile & TILE_VALUE_MASK) );
}
} /* model_makeTurnFromMoveInfo */
void
model_countAllTrayTiles( ModelCtxt* model, XP_U16* counts,
XP_S16 excludePlayer )
{
PlayerCtxt* player;
XP_S16 nPlayers = model->nPlayers;
XP_S16 ii;
Tile blank;
blank = dict_getBlankTile( model_getDictionary(model) );
for ( ii = 0, player = model->players; ii < nPlayers; ++ii, ++player ) {
if ( ii != excludePlayer ) {
XP_U16 nTiles = player->nPending;
PendingTile* pt;
Tile* tiles;
/* first the pending tiles */
for ( pt = player->pendingTiles; nTiles--; ++pt ) {
Tile tile = pt->tile;
if ( IS_BLANK(tile) ) {
tile = blank;
} else {
tile &= TILE_VALUE_MASK;
}
XP_ASSERT( tile <= MAX_UNIQUE_TILES );
++counts[tile];
}
/* then the tiles still in the tray */
nTiles = player->trayTiles.nTiles;
tiles = player->trayTiles.tiles;
while ( nTiles-- ) {
++counts[*tiles++];
}
}
}
} /* model_countAllTrayTiles */
XP_S16
model_trayContains( ModelCtxt* model, XP_S16 turn, Tile tile )
{
XP_ASSERT( turn >= 0 );
XP_ASSERT( turn < model->nPlayers );
const TrayTileSet* tiles = model_getPlayerTiles( model, turn );
return setContains( tiles, tile );
} /* model_trayContains */
XP_U16
model_getCurrentMoveCount( const ModelCtxt* model, XP_S16 turn )
{
const PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
return player->nPending;
} /* model_getCurrentMoveCount */
XP_Bool
model_getCurrentMoveIsVertical( const ModelCtxt* model, XP_S16 turn,
XP_Bool* isVertical )
{
XP_ASSERT( turn >= 0 );
const PlayerCtxt* player = &model->players[turn];
XP_U16 nPending = player->nPending;
XP_Bool known = 2 <= nPending;
if ( known ) {
--nPending;
if ( player->pendingTiles[nPending].col
== player->pendingTiles[nPending-1].col ) {
*isVertical = XP_TRUE;
} else if ( player->pendingTiles[nPending].row
== player->pendingTiles[nPending-1].row ) {
*isVertical = XP_FALSE;
} else {
known = XP_FALSE;
}
}
return known;
}
void
model_getCurrentMoveTile( ModelCtxt* model, XP_S16 turn, XP_S16* index,
Tile* tile, XP_U16* col, XP_U16* row,
XP_Bool* isBlank )
{
PlayerCtxt* player;
PendingTile* pt;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
XP_ASSERT( *index < player->nPending );
if ( *index < 0 ) {
*index = player->nPending - 1;
}
pt = &player->pendingTiles[*index];
*col = pt->col;
*row = pt->row;
*isBlank = (pt->tile & TILE_BLANK_BIT) != 0;
*tile = pt->tile & TILE_VALUE_MASK;
} /* model_getCurrentMoveTile */
static Tile
removePlayerTile( ModelCtxt* model, XP_S16 turn, XP_S16 index )
{
PlayerCtxt* player;
Tile tile;
short ii;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
XP_ASSERT( index < player->trayTiles.nTiles );
tile = player->trayTiles.tiles[index];
--player->trayTiles.nTiles;
for ( ii = index; ii < player->trayTiles.nTiles; ++ii ) {
player->trayTiles.tiles[ii] = player->trayTiles.tiles[ii+1];
}
return tile;
} /* removePlayerTile */
Tile
model_removePlayerTile( ModelCtxt* model, XP_S16 turn, XP_S16 index )
{
Tile tile;
PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
if ( index < 0 ) {
index = player->trayTiles.nTiles - 1;
}
tile = removePlayerTile( model, turn, index );
notifyTrayListeners( model, turn, index, player->trayTiles.nTiles );
return tile;
} /* model_removePlayerTile */
void
model_packTilesUtil( ModelCtxt* model, PoolContext* pool,
XP_Bool includeBlank,
XP_U16* nUsed, const XP_UCHAR** texts,
Tile* tiles )
{
DictionaryCtxt* dict = model_getDictionary(model);
XP_U16 nFaces = dict_numTileFaces( dict );
Tile blankFace = dict_getBlankTile( dict );
Tile tile;
XP_U16 nFacesAvail = 0;
XP_ASSERT( nFaces <= *nUsed );
for ( tile = 0; tile < nFaces; ++tile ) {
if ( includeBlank ) {
XP_ASSERT( !!pool );
if ( pool_getNTilesLeftFor( pool, tile ) == 0 ) {
continue;
}
} else if ( tile == blankFace ) {
continue;
}
tiles[nFacesAvail] = tile;
texts[nFacesAvail] = dict_getTileString( dict, tile );
++nFacesAvail;
}
*nUsed = nFacesAvail;
} /* model_packTilesUtil */
static Tile
askBlankTile( ModelCtxt* model, XP_U16 turn )
{
XP_U16 nUsed = MAX_UNIQUE_TILES;
XP_S16 chosen;
const XP_UCHAR* tfaces[MAX_UNIQUE_TILES];
Tile tiles[MAX_UNIQUE_TILES];
model_packTilesUtil( model, NULL, XP_FALSE,
&nUsed, tfaces, tiles );
chosen = util_userPickTileBlank( model->vol.util, turn, tfaces, nUsed );
if ( chosen < 0 ) {
chosen = 0;
}
return tiles[chosen];
} /* askBlankTile */
void
model_moveTrayToBoard( ModelCtxt* model, XP_S16 turn, XP_U16 col, XP_U16 row,
XP_S16 tileIndex, Tile blankFace )
{
PlayerCtxt* player;
PendingTile* pt;
Tile tile = model_removePlayerTile( model, turn, tileIndex );
if ( tile == dict_getBlankTile(model_getDictionary(model)) ) {
if ( blankFace != EMPTY_TILE ) {
tile = blankFace;
} else {
XP_ASSERT( turn >= 0 );
tile = askBlankTile( model, (XP_U16)turn );
}
tile |= TILE_BLANK_BIT;
}
player = &model->players[turn];
if ( player->nPending == 0 ) {
invalLastMove( model );
}
player->nUndone = 0;
pt = &player->pendingTiles[player->nPending++];
XP_ASSERT( player->nPending <= MAX_TRAY_TILES );
pt->tile = tile;
pt->col = (XP_U8)col;
pt->row = (XP_U8)row;
invalidateScore( model, turn );
incrPendingTileCountAt( model, col, row );
notifyBoardListeners( model, turn, col, row, XP_TRUE );
} /* model_moveTrayToBoard */
XP_Bool
model_redoPendingTiles( ModelCtxt* model, XP_S16 turn )
{
XP_U16 actualCnt = 0;
PlayerCtxt* player;
XP_U16 nUndone;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
nUndone = player->nUndone;
if ( nUndone > 0 ) {
PendingTile pendingTiles[nUndone];
PendingTile* pt = pendingTiles;
XP_MEMCPY( pendingTiles, &player->pendingTiles[player->nPending],
nUndone * sizeof(pendingTiles[0]) );
/* Now we have info about each tile, but don't know where in the
tray they are. So find 'em. */
for ( pt = pendingTiles; nUndone-- > 0; ++pt ) {
Tile tile = pt->tile;
XP_Bool isBlank = 0 != (tile & TILE_BLANK_BIT);
XP_S16 foundAt;
if ( isBlank ) {
tile = dict_getBlankTile( model_getDictionary(model) );
}
foundAt = model_trayContains( model, turn, tile );
XP_ASSERT( foundAt >= 0 );
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 actualCnt > 0;
}
void
model_moveBoardToTray( ModelCtxt* model, XP_S16 turn,
XP_U16 col, XP_U16 row, XP_U16 trayOffset )
{
XP_S16 index;
PlayerCtxt* player;
short ii;
PendingTile* pt;
Tile tile;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
for ( pt = player->pendingTiles, index = 0;
index < player->nPending;
++index, ++pt ) {
if ( pt->col == col && pt->row == row ) {
break;
}
}
/* if we're called from putBackOtherPlayersTiles there may be nothing
here */
if ( index < player->nPending ) {
PendingTile tmpPending;
decrPendingTileCountAt( model, col, row );
notifyBoardListeners( model, turn, col, row, XP_FALSE );
tile = pt->tile;
if ( (tile & TILE_BLANK_BIT) != 0 ) {
tile = dict_getBlankTile( model_getDictionary(model) );
}
model_addPlayerTile( model, turn, trayOffset, tile );
--player->nPending;
tmpPending = player->pendingTiles[index];
for ( ii = index; ii < player->nPending; ++ii ) {
player->pendingTiles[ii] = player->pendingTiles[ii+1];
}
player->pendingTiles[player->nPending] = tmpPending;
++player->nUndone;
//XP_LOGF( "%s: nUndone(%d): %d", __func__, turn, player->nUndone );
if ( player->nPending == 0 ) {
invalLastMove( model );
}
invalidateScore( model, turn );
}
} /* model_moveBoardToTray */
XP_Bool
model_moveTileOnBoard( ModelCtxt* model, XP_S16 turn, XP_U16 colCur,
XP_U16 rowCur, XP_U16 colNew, XP_U16 rowNew )
{
XP_Bool found = XP_FALSE;
PlayerCtxt* player;
XP_S16 index;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
index = player->nPending;
while ( index-- ) {
Tile tile;
XP_U16 tcol, trow;
XP_Bool isBlank;
model_getCurrentMoveTile( model, turn, &index, &tile, &tcol, &trow,
&isBlank );
if ( colCur == tcol && rowCur == trow ) {
PendingTile* pt = &player->pendingTiles[index];
pt->col = colNew;
pt->row = rowNew;
if ( isBlank ) {
pt->tile = TILE_BLANK_BIT | askBlankTile( model, turn );
}
decrPendingTileCountAt( model, colCur, rowCur );
incrPendingTileCountAt( model, colNew, rowNew );
invalidateScore( model, turn );
found = XP_TRUE;
break;
}
}
return found;
} /* model_moveTileOnBoard */
void
model_resetCurrentTurn( ModelCtxt* model, XP_S16 whose )
{
PlayerCtxt* player;
XP_ASSERT( whose >= 0 && whose < model->nPlayers );
player = &model->players[whose];
while ( player->nPending > 0 ) {
model_moveBoardToTray( model, whose,
player->pendingTiles[0].col,
player->pendingTiles[0].row,
-1 );
}
} /* model_resetCurrentTurn */
XP_S16
model_getNMoves( const ModelCtxt* model )
{
XP_U16 result = stack_getNEntries( model->vol.stack );
result -= model->nPlayers; /* tile assignment doesn't count */
return result;
}
XP_U16
model_visTileCount( const ModelCtxt* model, XP_U16 turn, XP_Bool trayVisible )
{
XP_U16 count = model->vol.nTilesOnBoard;
if ( trayVisible ) {
count += model_getCurrentMoveCount( model, turn );
}
return count;
}
XP_Bool
model_canShuffle( const ModelCtxt* model, XP_U16 turn, XP_Bool trayVisible )
{
return trayVisible
&& model_getPlayerTiles( model, turn )->nTiles > 1;
}
XP_Bool
model_canTogglePending( const ModelCtxt* model, XP_U16 turn )
{
const PlayerCtxt* player = &model->players[turn];
return 0 < player->nPending || 0 < player->nUndone;
}
static void
incrPendingTileCountAt( ModelCtxt* model, XP_U16 col, XP_U16 row )
{
XP_U16 val = getModelTileRaw( model, col, row );
if ( TILE_IS_EMPTY(val) ) {
val = 0;
} else {
XP_ASSERT( (val & TILE_PENDING_BIT) != 0 );
XP_ASSERT( (val & TILE_VALUE_MASK) > 0 );
}
++val;
XP_ASSERT( (val & TILE_VALUE_MASK) > 0 &&
(val & TILE_VALUE_MASK) <= MAX_NUM_PLAYERS );
setModelTileRaw( model, col, row, (CellTile)(val | TILE_PENDING_BIT) );
} /* incrPendingTileCountAt */
static void
setPendingCounts( ModelCtxt* model, XP_S16 turn )
{
PlayerCtxt* player;
PendingTile* pending;
XP_U16 nPending;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
pending = player->pendingTiles;
for ( nPending = player->nPending; nPending--; ) {
incrPendingTileCountAt( model, pending->col, pending->row );
++pending;
}
} /* setPendingCounts */
static void
decrPendingTileCountAt( ModelCtxt* model, XP_U16 col, XP_U16 row )
{
XP_U16 val = getModelTileRaw( model, col, row );
/* for pending tiles, the value is defined in the players array, so what
we keep here is a refcount of how many players have put tiles there. */
val &= TILE_VALUE_MASK; /* the refcount */
XP_ASSERT( val <= MAX_NUM_PLAYERS && val > 0 );
if ( --val > 0 ) {
val |= TILE_PENDING_BIT;
} else {
val = EMPTY_TILE;
}
setModelTileRaw( model, col, row, val );
} /* decrPendingTileCountAt */
static void
putBackOtherPlayersTiles( ModelCtxt* model, XP_U16 notMyTurn,
XP_U16 col, XP_U16 row )
{
XP_U16 turn;
for ( turn = 0; turn < model->nPlayers; ++turn ) {
if ( turn == notMyTurn ) {
continue;
}
model_moveBoardToTray( model, turn, col, row, -1 );
}
} /* putBackOtherPlayersTiles */
/* Make those tiles placed by 'turn' a permanent part of the board. If any
* other players have placed pending tiles on those same squares, replace them
* in their trays.
*/
static XP_S16
commitTurn( ModelCtxt* model, XP_S16 turn, const TrayTileSet* newTiles,
XWStreamCtxt* stream, WordNotifierInfo* wni, XP_Bool useStack )
{
XP_U16 ii;
PlayerCtxt* player;
PendingTile* pt;
XP_S16 score = -1;
XP_Bool isHorizontal;
const Tile* newTilesP;
XP_U16 nTiles;
nTiles = newTiles->nTiles;
#ifdef DEBUG
XP_ASSERT( getCurrentMoveScoreIfLegal( model, turn, (XWStreamCtxt*)NULL,
(WordNotifierInfo*)NULL, &score ) );
invalidateScore( model, turn );
#endif
XP_ASSERT( turn >= 0 && turn < MAX_NUM_PLAYERS);
clearLastMoveInfo( model );
player = &model->players[turn];
if ( useStack ) {
MoveInfo moveInfo = {0};
#ifdef DEBUG
XP_Bool inLine =
#endif
tilesInLine( model, turn, &isHorizontal );
XP_ASSERT( inLine );
normalizeMoves( model, turn, isHorizontal, &moveInfo );
stack_addMove( model->vol.stack, turn, &moveInfo, newTiles );
}
for ( ii = 0, pt=player->pendingTiles; ii < player->nPending;
++ii, ++pt ) {
XP_U16 col, row;
CellTile tile;
XP_U16 val;
col = pt->col;
row = pt->row;
tile = getModelTileRaw( model, col, row );
XP_ASSERT( (tile & TILE_PENDING_BIT) != 0 );
val = tile & TILE_VALUE_MASK;
if ( val > 1 ) { /* somebody else is using this square too! */
putBackOtherPlayersTiles( model, turn, col, row );
}
tile = pt->tile;
tile |= PREV_MOVE_BIT;
tile |= turn << CELL_OWNER_OFFSET;
setModelTileRaw( model, col, row, tile );
notifyBoardListeners( model, turn, col, row, XP_FALSE );
++model->vol.nTilesOnBoard;
}
(void)getCurrentMoveScoreIfLegal( model, turn, stream, wni, &score );
XP_ASSERT( score >= 0 );
player->score += score;
/* Why is this next loop necessary? */
for ( ii = 0; ii < model->nPlayers; ++ii ) {
invalidateScore( model, ii );
}
player->nPending = 0;
player->nUndone = 0;
newTilesP = newTiles->tiles;
while ( nTiles-- ) {
model_addPlayerTile( model, turn, -1, *newTilesP++ );
}
return score;
} /* commitTurn */
XP_Bool
model_commitTurn( ModelCtxt* model, XP_S16 turn, TrayTileSet* newTiles )
{
XP_S16 score = commitTurn( model, turn, newTiles, NULL, NULL, XP_TRUE );
return 0 <= score;
} /* model_commitTurn */
/* Given a rack of new tiles and of old, remove all the old from the tray and
* replace them with new. Replace in the same place so that user sees an
* in-place change.
*/
static void
makeTileTrade( ModelCtxt* model, XP_S16 player, const TrayTileSet* oldTiles,
const TrayTileSet* newTiles )
{
XP_U16 ii;
XP_U16 nTiles;
XP_ASSERT( newTiles->nTiles == oldTiles->nTiles );
XP_ASSERT( oldTiles != &model->players[player].trayTiles );
for ( nTiles = newTiles->nTiles, ii = 0; ii < nTiles; ++ii ) {
Tile oldTile = oldTiles->tiles[ii];
XP_S16 tileIndex = model_trayContains( model, player, oldTile );
XP_ASSERT( tileIndex >= 0 );
model_removePlayerTile( model, player, tileIndex );
model_addPlayerTile( model, player, tileIndex, newTiles->tiles[ii] );
}
} /* makeTileTrade */
void
model_makeTileTrade( ModelCtxt* model, XP_S16 player,
const TrayTileSet* oldTiles, const TrayTileSet* newTiles )
{
stack_addTrade( model->vol.stack, player, oldTiles, newTiles );
makeTileTrade( model, player, oldTiles, newTiles );
} /* model_makeTileTrade */
Tile
model_getPlayerTile( const ModelCtxt* model, XP_S16 turn, XP_S16 index )
{
const PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
if ( index < 0 ) {
index = player->trayTiles.nTiles-1;
}
XP_ASSERT( index < player->trayTiles.nTiles );
return player->trayTiles.tiles[index];
} /* model_getPlayerTile */
const TrayTileSet*
model_getPlayerTiles( const ModelCtxt* model, XP_S16 turn )
{
const PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
return (const TrayTileSet*)&player->trayTiles;
} /* model_getPlayerTile */
#ifdef DEBUG
XP_UCHAR*
formatTileSet( const TrayTileSet* tiles, XP_UCHAR* buf, XP_U16 len )
{
XP_U16 ii, used;
for ( ii = 0, used = 0; ii < tiles->nTiles && used < len; ++ii ) {
used += XP_SNPRINTF( &buf[used], len - used, "%d,", tiles->tiles[ii] );
}
if ( used > len ) {
buf[len-1] = '\0';
}
return buf;
}
#endif
static void
addPlayerTile( ModelCtxt* model, XP_S16 turn, XP_S16 index, const Tile tile )
{
PlayerCtxt* player;
short ii;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
XP_ASSERT( player->trayTiles.nTiles < MAX_TRAY_TILES );
XP_ASSERT( index >= 0 );
/* move tiles up to make room */
for ( ii = player->trayTiles.nTiles; ii > index; --ii ) {
player->trayTiles.tiles[ii] = player->trayTiles.tiles[ii-1];
}
++player->trayTiles.nTiles;
player->trayTiles.tiles[index] = tile;
} /* addPlayerTile */
void
model_addPlayerTile( ModelCtxt* model, XP_S16 turn, XP_S16 index, Tile tile )
{
PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
if ( index < 0 ) {
index = player->trayTiles.nTiles;
}
addPlayerTile( model, turn, index, tile );
notifyTrayListeners( model, turn, index, player->trayTiles.nTiles );
} /* model_addPlayerTile */
void
model_moveTileOnTray( ModelCtxt* model, XP_S16 turn, XP_S16 indexCur,
XP_S16 indexNew )
{
Tile tile = removePlayerTile( model, turn, indexCur );
addPlayerTile( model, turn, indexNew, tile );
notifyTrayListeners( model, turn, indexCur, indexNew );
} /* model_moveTileOnTray */
static void
assignPlayerTiles( ModelCtxt* model, XP_S16 turn, const TrayTileSet* tiles )
{
const Tile* tilep = tiles->tiles;
XP_U16 nTiles = tiles->nTiles;
while ( nTiles-- ) {
model_addPlayerTile( model, turn, -1, *tilep++ );
}
} /* assignPlayerTiles */
void
model_assignPlayerTiles( ModelCtxt* model, XP_S16 turn,
const TrayTileSet* tiles )
{
XP_ASSERT( turn >= 0 );
TrayTileSet sorted;
sortTiles( &sorted, tiles );
stack_addAssign( model->vol.stack, turn, &sorted );
assignPlayerTiles( model, turn, tiles );
} /* model_assignPlayerTiles */
void
model_sortTiles( ModelCtxt* model, XP_S16 turn )
{
XP_S16 nTiles;
TrayTileSet sorted;
sortTiles( &sorted, model_getPlayerTiles( model, turn ) );
nTiles = sorted.nTiles;
while ( nTiles > 0 ) {
removePlayerTile( model, turn, --nTiles );
}
assignPlayerTiles( model, turn, &sorted );
} /* model_sortTiles */
XP_U16
model_getNumTilesInTray( ModelCtxt* model, XP_S16 turn )
{
PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
return player->trayTiles.nTiles;
} /* model_getNumTilesInTray */
XP_U16
model_getNumTilesTotal( ModelCtxt* model, XP_S16 turn )
{
PlayerCtxt* player;
XP_ASSERT( turn >= 0 );
player = &model->players[turn];
return player->trayTiles.nTiles + player->nPending;
} /* model_getNumTilesTotal */
XP_U16
model_numRows( const ModelCtxt* model )
{
return model->nRows;
} /* model_numRows */
XP_U16
model_numCols( const ModelCtxt* model )
{
return model->nCols;
} /* model_numCols */
void
model_setBoardListener( ModelCtxt* model, BoardListener bl, void* data )
{
model->vol.boardListenerFunc = bl;
model->vol.boardListenerData = data;
} /* model_setBoardListener */
void
model_setTrayListener( ModelCtxt* model, TrayListener tl, void* data )
{
model->vol.trayListenerFunc = tl;
model->vol.trayListenerData = data;
} /* model_setTrayListener */
void
model_setDictListener( ModelCtxt* model, DictListener dl, void* data )
{
model->vol.dictListenerFunc = dl;
model->vol.dictListenerData = data;
} /* model_setDictListener */
static void
notifyBoardListeners( ModelCtxt* model, XP_U16 turn, XP_U16 col, XP_U16 row,
XP_Bool added )
{
if ( model->vol.boardListenerFunc != NULL ) {
(*model->vol.boardListenerFunc)( model->vol.boardListenerData, turn,
col, row, added );
}
} /* notifyBoardListeners */
static void
notifyTrayListeners( ModelCtxt* model, XP_U16 turn, XP_S16 index1,
XP_S16 index2 )
{
if ( model->vol.trayListenerFunc != NULL ) {
(*model->vol.trayListenerFunc)( model->vol.trayListenerData, turn,
index1, index2 );
}
} /* notifyTrayListeners */
static void
notifyDictListeners( ModelCtxt* model, XP_S16 playerNum,
DictionaryCtxt* oldDict, DictionaryCtxt* newDict )
{
XP_ASSERT( !!newDict );
if ( model->vol.dictListenerFunc != NULL ) {
(*model->vol.dictListenerFunc)( model->vol.dictListenerData, playerNum,
oldDict, newDict );
}
} /* notifyDictListeners */
static void
printString( XWStreamCtxt* stream, const XP_UCHAR* str )
{
stream_catString( stream, str );
} /* printString */
static XP_UCHAR*
formatTray( const TrayTileSet* tiles, DictionaryCtxt* dict, XP_UCHAR* buf,
XP_U16 bufSize, XP_Bool keepHidden )
{
if ( keepHidden ) {
XP_U16 ii;
for ( ii = 0; ii < tiles->nTiles; ++ii ) {
buf[ii] = '?';
}
buf[ii] = '\0';
} else {
dict_tilesToString( dict, (Tile*)tiles->tiles, tiles->nTiles,
buf, bufSize );
}
return buf;
} /* formatTray */
typedef struct MovePrintClosure {
XWStreamCtxt* stream;
DictionaryCtxt* dict;
XP_U16 nPrinted;
XP_Bool keepHidden;
} MovePrintClosure;
static void
printMovePre( ModelCtxt* model, XP_U16 XP_UNUSED(moveN), const StackEntry* entry,
void* p_closure )
{
XWStreamCtxt* stream;
const XP_UCHAR* format;
XP_UCHAR buf[32];
XP_UCHAR traybuf[MAX_TRAY_TILES+1];
MovePrintClosure* closure = (MovePrintClosure*)p_closure;
if ( entry->moveType == ASSIGN_TYPE ) {
return;
}
stream = closure->stream;
XP_SNPRINTF( buf, sizeof(buf), (XP_UCHAR*)"%d:%d ", ++closure->nPrinted,
entry->playerNum+1 );
printString( stream, (XP_UCHAR*)buf );
if ( entry->moveType == TRADE_TYPE ) {
} else {
XP_UCHAR letter[2] = {'\0','\0'};
XP_Bool isHorizontal = entry->u.move.moveInfo.isHorizontal;
XP_U16 col, row;
const MoveInfo* mi;
XP_Bool isPass = XP_FALSE;
if ( entry->moveType == PHONY_TYPE ) {
mi = &entry->u.phony.moveInfo;
} else {
mi = &entry->u.move.moveInfo;
if ( mi->nTiles == 0 ) {
isPass = XP_TRUE;
}
}
if ( isPass ) {
format = util_getUserString( model->vol.util, STR_PASS );
XP_SNPRINTF( buf, VSIZE(buf), "%s", format );
} else {
if ( isHorizontal ) {
format = util_getUserString( model->vol.util, STRS_MOVE_ACROSS );
} else {
format = util_getUserString( model->vol.util, STRS_MOVE_DOWN );
}
row = mi->commonCoord;
col = mi->tiles[0].varCoord;
if ( !isHorizontal ) {
XP_U16 tmp = col; col = row; row = tmp;
}
letter[0] = 'A' + col;
XP_SNPRINTF( traybuf, sizeof(traybuf), (XP_UCHAR *)"%s%d",
letter, row + 1 );
XP_SNPRINTF( buf, sizeof(buf), format, traybuf );
}
printString( stream, (XP_UCHAR*)buf );
}
if ( !closure->keepHidden ) {
format = util_getUserString( model->vol.util, STRS_TRAY_AT_START );
formatTray( model_getPlayerTiles( model, entry->playerNum ),
closure->dict, (XP_UCHAR*)traybuf, sizeof(traybuf),
XP_FALSE );
XP_SNPRINTF( buf, sizeof(buf), format, traybuf );
printString( stream, buf );
}
} /* printMovePre */
static void
printMovePost( ModelCtxt* model, XP_U16 XP_UNUSED(moveN),
const StackEntry* entry, XP_S16 XP_UNUSED(score),
void* p_closure )
{
MovePrintClosure* closure = (MovePrintClosure*)p_closure;
XWStreamCtxt* stream = closure->stream;
DictionaryCtxt* dict = closure->dict;
const XP_UCHAR* format;
XP_U16 nTiles;
XP_S16 totalScore;
XP_UCHAR buf[100];
XP_UCHAR traybuf1[MAX_TRAY_TILES+1];
XP_UCHAR traybuf2[MAX_TRAY_TILES+1];
const MoveInfo* mi;
if ( entry->moveType == ASSIGN_TYPE ) {
return;
}
totalScore = model_getPlayerScore( model, entry->playerNum );
switch( entry->moveType ) {
case TRADE_TYPE:
formatTray( (const TrayTileSet*)&entry->u.trade.oldTiles,
dict, traybuf1, sizeof(traybuf1), closure->keepHidden );
formatTray( (const TrayTileSet*) &entry->u.trade.newTiles,
dict, traybuf2, sizeof(traybuf2), closure->keepHidden );
format = util_getUserString( model->vol.util, STRSS_TRADED_FOR );
XP_SNPRINTF( buf, sizeof(buf), format, traybuf1, traybuf2 );
printString( stream, buf );
printString( stream, (XP_UCHAR*)XP_CR );
break;
case PHONY_TYPE:
format = util_getUserString( model->vol.util, STR_PHONY_REJECTED );
printString( stream, format );
case MOVE_TYPE:
format = util_getUserString( model->vol.util, STRD_CUMULATIVE_SCORE );
XP_SNPRINTF( buf, sizeof(buf), format, totalScore );
printString( stream, buf );
if ( entry->moveType == PHONY_TYPE ) {
mi = &entry->u.phony.moveInfo;
} else {
mi = &entry->u.move.moveInfo;
}
nTiles = mi->nTiles;
if ( nTiles > 0 ) {
if ( entry->moveType == PHONY_TYPE ) {
/* printString( stream, (XP_UCHAR*)"phony rejected " ); */
} else if ( !closure->keepHidden ) {
format = util_getUserString(model->vol.util, STRS_NEW_TILES);
XP_SNPRINTF( buf, sizeof(buf), format,
formatTray( &entry->u.move.newTiles, dict,
traybuf1, sizeof(traybuf1),
XP_FALSE ) );
printString( stream, buf );
}
}
break;
}
printString( stream, (XP_UCHAR*)XP_CR );
} /* printMovePost */
static void
copyStack( ModelCtxt* model, StackCtxt* destStack, const StackCtxt* srcStack )
{
XWStreamCtxt* stream = mem_stream_make( MPPARM(model->vol.mpool)
util_getVTManager(model->vol.util),
NULL, 0, NULL );
stack_writeToStream( (StackCtxt*)srcStack, stream );
stack_loadFromStream( destStack, stream );
stream_destroy( stream );
} /* copyStack */
static ModelCtxt*
makeTmpModel( ModelCtxt* model, XWStreamCtxt* stream,
MovePrintFuncPre mpf_pre, MovePrintFuncPost mpf_post,
void* closure )
{
ModelCtxt* tmpModel = model_make( MPPARM(model->vol.mpool)
model_getDictionary(model), NULL,
model->vol.util, model_numCols(model) );
tmpModel->loaner = model;
model_setNPlayers( tmpModel, model->nPlayers );
buildModelFromStack( tmpModel, model->vol.stack, XP_FALSE, 0, stream,
(WordNotifierInfo*)NULL, mpf_pre, mpf_post, closure );
return tmpModel;
} /* makeTmpModel */
void
model_writeGameHistory( ModelCtxt* model, XWStreamCtxt* stream,
ServerCtxt* server, XP_Bool gameOver )
{
ModelCtxt* tmpModel;
MovePrintClosure closure;
closure.stream = stream;
closure.dict = model_getDictionary( model );
closure.keepHidden = !gameOver;
closure.nPrinted = 0;
tmpModel = makeTmpModel( model, stream, printMovePre, printMovePost,
&closure );
model_destroy( tmpModel );
if ( gameOver ) {
/* if the game's over, it shouldn't matter which model I pass to this
method */
server_writeFinalScores( server, stream );
}
} /* model_writeGameHistory */
typedef struct _FirstWordData {
XP_UCHAR word[32];
} FirstWordData;
static XP_Bool
getFirstWord( const XP_UCHAR* word, XP_Bool XP_UNUSED(isLegal),
const DictionaryCtxt* XP_UNUSED(dict),
#ifdef XWFEATURE_BOARDWORDS
const MoveInfo* XP_UNUSED(movei), XP_U16 XP_UNUSED(start),
XP_U16 XP_UNUSED(end),
#endif
void* closure )
{
FirstWordData* data = (FirstWordData*)closure;
if ( '\0' == data->word[0] && '\0' != word[0] ) {
XP_STRCAT( data->word, word );
}
return XP_TRUE;
}
static void
scoreLastMove( ModelCtxt* model, MoveInfo* moveInfo, XP_U16 howMany,
XP_UCHAR* buf, XP_U16* bufLen )
{
if ( moveInfo->nTiles == 0 ) {
const XP_UCHAR* str = util_getUserString( model->vol.util, STR_PASSED );
XP_U16 len = XP_STRLEN( str );
*bufLen = len;
XP_STRNCPY( buf, str, len + 1 );
} else {
XP_U16 score;
const XP_UCHAR* format;
WordNotifierInfo notifyInfo;
FirstWordData data;
ModelCtxt* tmpModel = makeTmpModel( model, NULL, NULL, NULL, NULL );
XP_U16 turn;
XP_S16 moveNum = -1;
copyStack( model, tmpModel->vol.stack, model->vol.stack );
if ( !model_undoLatestMoves( tmpModel, NULL, howMany, &turn,
&moveNum ) ) {
XP_ASSERT( 0 );
}
data.word[0] = '\0';
notifyInfo.proc = getFirstWord;
notifyInfo.closure = &data;
score = figureMoveScore( tmpModel, turn, moveInfo, (EngineCtxt*)NULL,
(XWStreamCtxt*)NULL, &notifyInfo );
model_destroy( tmpModel );
format = util_getUserString( model->vol.util, STRSD_SUMMARYSCORED );
*bufLen = XP_SNPRINTF( buf, *bufLen, format, data.word, score );
}
} /* scoreLastMove */
static XP_U16
model_getRecentPassCount( ModelCtxt* model )
{
StackCtxt* stack = model->vol.stack;
XP_U16 nPasses = 0;
XP_S16 nEntries, which;
StackEntry entry;
XP_ASSERT( !!stack );
nEntries = stack_getNEntries( stack );
for ( which = nEntries - 1; which >= 0; --which ) {
if ( stack_getNthEntry( stack, which, &entry ) ) {
if ( entry.moveType == MOVE_TYPE
&& entry.u.move.moveInfo.nTiles == 0 ) {
++nPasses;
} else {
break;
}
} else {
break;
}
}
return nPasses;
} /* model_getRecentPassCount */
XP_Bool
model_recentPassCountOk( ModelCtxt* model )
{
XP_U16 count = model_getRecentPassCount( model );
XP_U16 okCount = model->nPlayers * MAX_PASSES;
XP_ASSERT( count <= okCount ); /* should never be more than 1 over */
return count < okCount;
}
static void
appendWithCR( XWStreamCtxt* stream, const XP_UCHAR* word, XP_U16* counter )
{
if ( 0 < (*counter)++ ) {
stream_putU8( stream, '\n' );
}
stream_catString( stream, word );
}
static XP_Bool
recordWord( const XP_UCHAR* word, XP_Bool XP_UNUSED(isLegal),
const DictionaryCtxt* XP_UNUSED(dict),
#ifdef XWFEATURE_BOARDWORDS
const MoveInfo* XP_UNUSED(movei), XP_U16 XP_UNUSED(start),
XP_U16 XP_UNUSED(end),
#endif
void* closure )
{
RecordWordsInfo* info = (RecordWordsInfo*)closure;
appendWithCR( info->stream, word, &info->nWords );
return XP_TRUE;
}
WordNotifierInfo*
model_initWordCounter( ModelCtxt* model, XWStreamCtxt* stream )
{
XP_ASSERT( model->vol.wni.proc == recordWord );
XP_ASSERT( model->vol.wni.closure == &model->vol.rwi );
model->vol.rwi.stream = stream;
model->vol.rwi.nWords = 0;
return &model->vol.wni;
}
#ifdef XWFEATURE_BOARDWORDS
typedef struct _ListWordsThroughInfo {
XWStreamCtxt* stream;
XP_U16 col, row;
XP_U16 nWords;
} ListWordsThroughInfo;
static XP_Bool
listWordsThrough( const XP_UCHAR* word, XP_Bool XP_UNUSED(isLegal),
const DictionaryCtxt* XP_UNUSED(dict),
const MoveInfo* movei, XP_U16 start, XP_U16 end,
void* closure )
{
ListWordsThroughInfo* info = (ListWordsThroughInfo*)closure;
XP_Bool contained = XP_FALSE;
if ( movei->isHorizontal && movei->commonCoord == info->row ) {
contained = start <= info->col && end >= info->col;
} else if ( !movei->isHorizontal && movei->commonCoord == info->col ) {
contained = start <= info->row && end >= info->row;
}
if ( contained ) {
appendWithCR( info->stream, word, &info->nWords );
}
return XP_TRUE;
}
/* List every word played that includes the tile on {col,row}.
*
* How? Undo backwards until we find the move that placed that tile.*/
void
model_listWordsThrough( ModelCtxt* model, XP_U16 col, XP_U16 row,
XWStreamCtxt* stream )
{
XP_ASSERT( !!stream );
StackCtxt* stack = model->vol.stack;
XP_U16 nEntriesBefore = stack_getNEntries( stack );
XP_U16 nEntriesAfter;
/* Loop until we undo the move that placed the tile. */
while ( model_undoLatestMoves( model, NULL, 1, NULL, NULL ) ) {
if ( 0 != (TILE_EMPTY_BIT & getModelTileRaw( model, col, row ) ) ) {
break;
}
}
nEntriesAfter = stack_getNEntries( stack );
XP_ASSERT( nEntriesAfter < nEntriesBefore );
if ( nEntriesAfter < nEntriesBefore ) {
ListWordsThroughInfo lwtInfo = { .stream = stream, .col = col,
.row = row, .nWords = 0,
};
WordNotifierInfo ni = { .proc = listWordsThrough, .closure = &lwtInfo };
/* Now push the undone moves back into the model one at a time.
recordWord() will add each played word to the stream as it's
scored */
while ( nEntriesAfter < nEntriesBefore ) {
StackEntry entry;
if ( ! stack_redo( stack, &entry ) ) {
XP_ASSERT( 0 );
break;
}
modelAddEntry( model, nEntriesAfter++, &entry, XP_FALSE, NULL, &ni,
NULL, NULL, NULL );
}
}
} /* model_listWordsThrough */
#endif
XP_Bool
model_getPlayersLastScore( ModelCtxt* model, XP_S16 player,
XP_UCHAR* expl, XP_U16* explLen )
{
StackCtxt* stack = model->vol.stack;
XP_S16 nEntries, which;
StackEntry entry;
XP_Bool found = XP_FALSE;
XP_ASSERT( !!stack );
XP_ASSERT( player >= 0 );
nEntries = stack_getNEntries( stack );
for ( which = nEntries; which >= 0; ) {
if ( stack_getNthEntry( stack, --which, &entry ) ) {
if ( entry.playerNum == player ) {
found = XP_TRUE;
break;
}
}
}
if ( found ) { /* success? */
const XP_UCHAR* format;
XP_U16 nTiles;
switch ( entry.moveType ) {
case MOVE_TYPE:
scoreLastMove( model, &entry.u.move.moveInfo,
nEntries - which, expl, explLen );
break;
case TRADE_TYPE:
nTiles = entry.u.trade.oldTiles.nTiles;
format = util_getUserString( model->vol.util, STRD_TRADED );
*explLen = XP_SNPRINTF( expl, *explLen, format, nTiles );
break;
case PHONY_TYPE:
format = util_getUserString( model->vol.util, STR_LOSTTURN );
*explLen = XP_STRLEN( format );
XP_STRCAT( expl, format );
break;
case ASSIGN_TYPE:
found = XP_FALSE;
break;
}
}
return found;
} /* model_getPlayersLastScore */
static void
loadPlayerCtxt( const ModelCtxt* model, XWStreamCtxt* stream, XP_U16 version,
PlayerCtxt* pc )
{
PendingTile* pt;
XP_U16 nTiles;
XP_U16 nColsNBits;
#ifdef STREAM_VERS_BIGBOARD
nColsNBits = 16 <= model_numCols( model ) ? NUMCOLS_NBITS_5
: NUMCOLS_NBITS_4;
#else
XP_USE(model);
nColsNBits = NUMCOLS_NBITS_4;
#endif
pc->curMoveValid = stream_getBits( stream, 1 );
traySetFromStream( stream, &pc->trayTiles );
pc->nPending = (XP_U8)stream_getBits( stream, NTILES_NBITS );
if ( STREAM_VERS_NUNDONE <= version ) {
pc->nUndone = (XP_U8)stream_getBits( stream, NTILES_NBITS );
} else {
XP_ASSERT( 0 == pc->nUndone );
}
nTiles = pc->nPending + pc->nUndone;
for ( pt = pc->pendingTiles; nTiles-- > 0; ++pt ) {
XP_U16 nBits;
pt->col = (XP_U8)stream_getBits( stream, nColsNBits );
pt->row = (XP_U8)stream_getBits( stream, nColsNBits );
nBits = (version <= STREAM_VERS_RELAY) ? 6 : 7;
pt->tile = (Tile)stream_getBits( stream, nBits );
}
} /* loadPlayerCtxt */
static void
writePlayerCtxt( const ModelCtxt* model, XWStreamCtxt* stream,
const PlayerCtxt* pc )
{
XP_U16 nTiles;
const PendingTile* pt;
XP_U16 nColsNBits;
#ifdef STREAM_VERS_BIGBOARD
nColsNBits = 16 <= model_numCols( model ) ? NUMCOLS_NBITS_5
: NUMCOLS_NBITS_4;
#else
XP_USE(model);
nColsNBits = NUMCOLS_NBITS_4;
#endif
stream_putBits( stream, 1, pc->curMoveValid );
traySetToStream( stream, &pc->trayTiles );
stream_putBits( stream, NTILES_NBITS, pc->nPending );
stream_putBits( stream, NTILES_NBITS, pc->nUndone );
nTiles = pc->nPending + pc->nUndone;
for ( pt = pc->pendingTiles; nTiles-- > 0; ++pt ) {
stream_putBits( stream, nColsNBits, pt->col );
stream_putBits( stream, nColsNBits, pt->row );
stream_putBits( stream, 7, pt->tile );
}
} /* writePlayerCtxt */
static XP_S16
setContains( const TrayTileSet* tiles, Tile tile )
{
XP_S16 result = -1;
XP_S16 ii;
/* search from top down so don't pull out of below divider */
for ( ii = tiles->nTiles - 1; ii >= 0 ; --ii ) {
Tile playerTile = tiles->tiles[ii];
if ( playerTile == tile ) {
result = ii;
break;
}
}
return result;
}
#ifdef CPLUS
}
#endif
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