jens@10: //
jens@10: //  Turn.m
jens@10: //  YourMove
jens@10: //
jens@10: //  Created by Jens Alfke on 7/3/08.
jens@10: //  Copyright 2008 Jens Alfke. All rights reserved.
jens@10: //
jens@10: 
jens@10: #import "Turn.h"
jens@10: #import "Game+Protected.h"
jens@10: #import "Player.h"
jens@10: 
jens@10: 
jens@10: NSString* const kTurnCompleteNotification = @"TurnComplete";
jens@10: 
jens@10: 
jens@10: @interface Turn ()
jens@10: @property (copy) NSString *move, *boardState;
jens@10: @property (retain) NSDate *date;
jens@10: @end
jens@10: 
jens@10: 
jens@10: 
jens@10: @implementation Turn
jens@10: 
jens@10: 
jens@10: - (id) initWithPlayer: (Player*)player
jens@10: {
jens@10:     NSParameterAssert(player!=nil);
jens@10:     self = [super init];
jens@10:     if (self != nil) {
jens@10:         _game = player.game;
jens@10:         _player = player;
jens@10:         _status = kTurnEmpty;
jens@10:         self.boardState = _game.latestTurn.boardState;
jens@10:     }
jens@10:     return self;
jens@10: }
jens@10: 
jens@10: - (id) initStartOfGame: (Game*)game
jens@10: {
jens@10:     NSParameterAssert(game!=nil);
jens@10:     self = [super init];
jens@10:     if (self != nil) {
jens@10:         _game = game;
jens@10:         _status = kTurnFinished;
jens@10:         self.boardState = game.initialStateString;
jens@10:         self.date = [NSDate date];
jens@10:     }
jens@10:     return self;
jens@10: }
jens@10: 
jens@10: 
jens@10: - (id) initWithCoder: (NSCoder*)decoder
jens@10: {
jens@10:     self = [self init];
jens@10:     if( self ) {
jens@10:         _game =        [decoder decodeObjectForKey: @"game"];
jens@10:         _player =      [decoder decodeObjectForKey: @"player"];
jens@10:         _status =      [decoder decodeIntForKey: @"status"];
jens@10:         _move =       [[decoder decodeObjectForKey: @"move"] copy];
jens@10:         _boardState = [[decoder decodeObjectForKey: @"boardState"] copy];
jens@10:         _date =       [[decoder decodeObjectForKey: @"date"] copy];
jens@10:         _comment =    [[decoder decodeObjectForKey: @"comment"] copy];
jens@10:     }
jens@10:     return self;
jens@10: }
jens@10: 
jens@10: - (void) encodeWithCoder: (NSCoder*)coder
jens@10: {
jens@10:     [coder encodeObject: _game       forKey: @"game"];
jens@10:     [coder encodeObject: _player     forKey: @"player"];
jens@10:     [coder encodeInt:    _status     forKey: @"status"];
jens@10:     [coder encodeObject: _move       forKey: @"move"];
jens@10:     [coder encodeObject: _boardState forKey: @"boardState"];
jens@10:     [coder encodeObject: _date       forKey: @"date"];
jens@10:     [coder encodeObject: _comment    forKey: @"comment"];
jens@10: }
jens@10: 
jens@10: - (void) dealloc
jens@10: {
jens@10:     [_move release];
jens@10:     [_boardState release];
jens@10:     [_date release];
jens@10:     [_comment release];
jens@10:     [super dealloc];
jens@10: }
jens@10: 
jens@10: 
jens@10: - (NSString*) description
jens@10: {
jens@10:     return [NSString stringWithFormat: @"%@[%@, #%i, %@]", self.class, _game.class, self.turnNumber, _move];
jens@10: }
jens@10: 
jens@10: 
jens@10: @synthesize game=_game, player=_player, move=_move, boardState=_boardState, date=_date, comment=_comment,
jens@10:             replaying=_replaying;
jens@10: 
jens@10: 
jens@10: - (unsigned) turnNumber     {return [_game.turns indexOfObjectIdenticalTo: self];}
jens@10: - (BOOL) isLatestTurn       {return _game.turns.lastObject == self;}
jens@10: - (Player*) nextPlayer      {return _player ?_player.nextPlayer :[_game.players objectAtIndex: 0];}
jens@10: - (TurnStatus) status       {return _status;}
jens@10: 
jens@10: - (void) setStatus: (TurnStatus)status
jens@10: {
jens@10:     BOOL ok = NO;
jens@10:     switch( _status ) {
jens@10:         case kTurnEmpty:
jens@10:             ok = (status==kTurnPartial) || (status==kTurnComplete);
jens@10:             break;
jens@10:         case kTurnPartial:
jens@10:             ok = (status==kTurnEmpty) || (status==kTurnComplete) || (status==kTurnFinished);
jens@10:             break;
jens@10:         case kTurnComplete:
jens@10:             ok = (status==kTurnEmpty) || (status==kTurnPartial) || (status==kTurnFinished);
jens@10:             break;
jens@10:         case kTurnFinished:
jens@10:             break;
jens@10:     }
jens@10:     NSAssert2(ok,@"Illegal Turn status transition %i -> %i", _status,status);
jens@10:     
jens@10:     [self captureBoardState];
jens@10:     _status = status;
jens@10:     if( _status==kTurnEmpty ) {
jens@10:         self.move = nil;
jens@10:         self.date = nil;
jens@10:     } else
jens@10:         self.date = [NSDate date];
jens@10: }
jens@10: 
jens@10: 
jens@16: - (void) _unfinish
jens@16: {
jens@16:     NSAssert(_status==kTurnFinished,@"Turn must be finished");
jens@16:     [self willChangeValueForKey: @"status"];
jens@16:     _status = kTurnComplete;
jens@16:     [self didChangeValueForKey: @"status"];
jens@16: }
jens@16: 
jens@16: 
jens@15: - (Turn*) previousTurn
jens@15: {
jens@15:     unsigned n = self.turnNumber;
jens@15:     if( n > 0 )
jens@15:         return [_game.turns objectAtIndex: n-1];
jens@15:     else
jens@15:         return nil;
jens@15: }
jens@15: 
jens@15: - (Turn*) nextTurn
jens@15: {
jens@15:     unsigned n = self.turnNumber;
jens@15:     if( n+1 < _game.turns.count )
jens@15:         return [_game.turns objectAtIndex: n+1];
jens@15:     else
jens@15:         return nil;
jens@15: }
jens@15: 
jens@15: 
jens@10: - (void) addToMove: (NSString*)move
jens@10: {
jens@10:     if( ! _replaying ) {
jens@10:         NSParameterAssert(move.length);
jens@10:         NSAssert(_status<kTurnComplete,@"Complete Turn can't be modified");
jens@10:         if( _move )
jens@10:             move = [_move stringByAppendingString: move];
jens@10:         self.move = move;
jens@10:         [self captureBoardState];
jens@10:         self.date = [NSDate date];
jens@10:         if( _status==kTurnEmpty )
jens@10:             self.status = kTurnPartial;
jens@10:     }
jens@10: }
jens@10: 
jens@10: 
jens@10: - (void) captureBoardState
jens@10: {
jens@10:     if( ! _replaying ) {
jens@10:         NSAssert(_status<kTurnFinished,@"Finished Turn can't be modified");
jens@16:         if( _game.table )
jens@10:             self.boardState = _game.stateString;
jens@10:     }
jens@10: }
jens@10: 
jens@10: 
jens@10: @end