GeekGameBoard: Source/Turn.m@7c9ecb09a612

     1 //

     2 //  Turn.m

     3 //  YourMove

     4 //

     5 //  Created by Jens Alfke on 7/3/08.

     6 //  Copyright 2008 Jens Alfke. All rights reserved.

     7 //

     9 #import "Turn.h"

    10 #import "Game+Protected.h"

    11 #import "Player.h"

    14 NSString* const kTurnCompleteNotification = @"TurnComplete";

    17 @interface Turn ()

    18 @property (copy) NSString *move, *boardState;

    19 @property (retain) NSDate *date;

    20 @end

    24 @implementation Turn

    27 - (id) initWithPlayer: (Player*)player

    28 {

    29     NSParameterAssert(player!=nil);

    30     self = [super init];

    31     if (self != nil) {

    32         _game = player.game;

    33         _player = player;

    34         _status = kTurnEmpty;

    35         self.boardState = _game.latestTurn.boardState;

    36     }

    37     return self;

    38 }

    40 - (id) initStartOfGame: (Game*)game

    41 {

    42     NSParameterAssert(game!=nil);

    43     self = [super init];

    44     if (self != nil) {

    45         _game = game;

    46         _status = kTurnFinished;

    47         self.boardState = game.initialStateString;

    48         self.date = [NSDate date];

    49     }

    50     return self;

    51 }

    54 - (id) initWithCoder: (NSCoder*)decoder

    55 {

    56     self = [self init];

    57     if( self ) {

    58         _game =        [decoder decodeObjectForKey: @"game"];

    59         _player =      [decoder decodeObjectForKey: @"player"];

    60         _status =      [decoder decodeIntForKey: @"status"];

    61         _move =       [[decoder decodeObjectForKey: @"move"] copy];

    62         _boardState = [[decoder decodeObjectForKey: @"boardState"] copy];

    63         _date =       [[decoder decodeObjectForKey: @"date"] copy];

    64         _comment =    [[decoder decodeObjectForKey: @"comment"] copy];

    65     }

    66     return self;

    67 }

    69 - (void) encodeWithCoder: (NSCoder*)coder

    70 {

    71     [coder encodeObject: _game       forKey: @"game"];

    72     [coder encodeObject: _player     forKey: @"player"];

    73     [coder encodeInt:    _status     forKey: @"status"];

    74     [coder encodeObject: _move       forKey: @"move"];

    75     [coder encodeObject: _boardState forKey: @"boardState"];

    76     [coder encodeObject: _date       forKey: @"date"];

    77     [coder encodeObject: _comment    forKey: @"comment"];

    78 }

    80 - (void) dealloc

    81 {

    82     [_move release];

    83     [_boardState release];

    84     [_date release];

    85     [_comment release];

    86     [super dealloc];

    87 }

    90 - (NSString*) description

    91 {

    92     return [NSString stringWithFormat: @"%@[%@, #%i, %@]", self.class, _game.class, self.turnNumber, _move];

    93 }

    96 @synthesize game=_game, player=_player, move=_move, boardState=_boardState, date=_date, comment=_comment,

    97             replaying=_replaying;

   100 - (unsigned) turnNumber     {return [_game.turns indexOfObjectIdenticalTo: self];}

   101 - (BOOL) isLatestTurn       {return _game.turns.lastObject == self;}

   102 - (Player*) nextPlayer      {return _player ?_player.nextPlayer :[_game.players objectAtIndex: 0];}

   103 - (TurnStatus) status       {return _status;}

   105 - (void) setStatus: (TurnStatus)status

   106 {

   107     BOOL ok = NO;

   108     switch( _status ) {

   109         case kTurnEmpty:

   110             ok = (status==kTurnPartial) || (status==kTurnComplete);

   111             break;

   112         case kTurnPartial:

   113             ok = (status==kTurnEmpty) || (status==kTurnComplete) || (status==kTurnFinished);

   114             break;

   115         case kTurnComplete:

   116             ok = (status==kTurnEmpty) || (status==kTurnPartial) || (status==kTurnFinished);

   117             break;

   118         case kTurnFinished:

   119             break;

   120     }

   121     NSAssert2(ok,@"Illegal Turn status transition %i -> %i", _status,status);

   123     [self captureBoardState];

   124     _status = status;

   125     if( _status==kTurnEmpty ) {

   126         self.move = nil;

   127         self.date = nil;

   128     } else

   129         self.date = [NSDate date];

   130 }

   133 - (void) _unfinish

   134 {

   135     NSAssert(_status==kTurnFinished,@"Turn must be finished");

   136     [self willChangeValueForKey: @"status"];

   137     _status = kTurnComplete;

   138     [self didChangeValueForKey: @"status"];

   139 }

   142 - (Turn*) previousTurn

   143 {

   144     unsigned n = self.turnNumber;

   145     if( n > 0 )

   146         return [_game.turns objectAtIndex: n-1];

   147     else

   148         return nil;

   149 }

   151 - (Turn*) nextTurn

   152 {

   153     unsigned n = self.turnNumber;

   154     if( n+1 < _game.turns.count )

   155         return [_game.turns objectAtIndex: n+1];

   156     else

   157         return nil;

   158 }

   161 - (void) addToMove: (NSString*)move

   162 {

   163     if( ! _replaying ) {

   164         NSParameterAssert(move.length);

   165         NSAssert(_status<kTurnComplete,@"Complete Turn can't be modified");

   166         if( _move )

   167             move = [_move stringByAppendingString: move];

   168         self.move = move;

   169         [self captureBoardState];

   170         self.date = [NSDate date];

   171         if( _status==kTurnEmpty )

   172             self.status = kTurnPartial;

   173     }

   174 }

   177 - (void) captureBoardState

   178 {

   179     if( ! _replaying ) {

   180         NSAssert(_status<kTurnFinished,@"Finished Turn can't be modified");

   181         if( _game.table )

   182             self.boardState = _game.stateString;

   183     }

   184 }

   187 @end

author	Jens Alfke <jens@mooseyard.com>
	Fri Jul 18 13:26:59 2008 -0700 (2008-07-18)
changeset 20	7c9ecb09a612
parent 15	73f8c889f053
permissions	-rw-r--r--