jens@0: /*  This code is based on Apple's "GeekGameBoard" sample code, version 1.0.
jens@0:     http://developer.apple.com/samplecode/GeekGameBoard/
jens@0:     Copyright © 2007 Apple Inc. Copyright © 2008 Jens Alfke. All Rights Reserved.
jens@0: 
jens@0:     Redistribution and use in source and binary forms, with or without modification, are permitted
jens@0:     provided that the following conditions are met:
jens@0: 
jens@0:     * Redistributions of source code must retain the above copyright notice, this list of conditions
jens@0:       and the following disclaimer.
jens@0:     * Redistributions in binary form must reproduce the above copyright notice, this list of
jens@0:       conditions and the following disclaimer in the documentation and/or other materials provided
jens@0:       with the distribution.
jens@0: 
jens@0:     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
jens@0:     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
jens@0:     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-
jens@0:     BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
jens@0:     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
jens@0:     PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
jens@0:     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 
jens@0:     THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
jens@0: */
jens@0: #import "Game.h"
jens@0: #import "Bit.h"
jens@0: 
jens@0: 
jens@0: @interface Game ()
jens@0: @property (copy) NSArray *players;
jens@0: @property (assign) Player *currentPlayer, *winner;
jens@0: @end
jens@0: 
jens@0: 
jens@0: /**  WARNING: THIS CODE REQUIRES GARBAGE COLLECTION!
jens@0:  **  This sample application uses Objective-C 2.0 garbage collection.
jens@0:  **  Therefore, the source code in this file does NOT perform manual object memory management.
jens@0:  **  If you reuse any of this code in a process that isn't garbage collected, you will need to
jens@0:  **  add all necessary retain/release/autorelease calls, and implement -dealloc methods,
jens@0:  **  otherwise unpleasant leakage will occur!
jens@0:  **/
jens@0: 
jens@0: 
jens@0: @implementation Game
jens@0: 
jens@0: 
jens@0: + (NSString*) displayName
jens@0: {
jens@0:     NSString* name = [self description];
jens@0:     if( [name hasSuffix: @"Game"] )
jens@0:         name = [name substringToIndex: name.length-4];
jens@0:     return name;
jens@0: }
jens@0: 
jens@0: 
jens@0: - (id) initWithBoard: (CALayer*)board
jens@0: {
jens@0:     self = [super init];
jens@0:     if (self != nil) {
jens@0:         _board = [board retain];
jens@0:         // Store a pointer to myself as the value of the "Game" property
jens@0:         // of my root layer. (CALayers can have arbitrary KV properties stored into them.)
jens@0:         // This is used by the -[CALayer game] category method defined below, to find the Game.
jens@0:         [board setValue: self forKey: @"Game"];
jens@0:     }
jens@0:     return self;
jens@0: }
jens@0: 
jens@0: 
jens@0: - (void) dealloc
jens@0: {
jens@0:     [_board release];
jens@0:     [_players release];
jens@0:     [super dealloc];
jens@0: }
jens@0: 
jens@0: 
jens@0: @synthesize players=_players, currentPlayer=_currentPlayer, winner=_winner;
jens@0: 
jens@0: 
jens@0: - (void) setNumberOfPlayers: (unsigned)n
jens@0: {
jens@0:     NSMutableArray *players = [NSMutableArray arrayWithCapacity: n];
jens@0:     for( int i=1; i<=n; i++ ) {
jens@0:         Player *player = [[Player alloc] initWithGame: self];
jens@0:         player.name = [NSString stringWithFormat: @"Player %i",i];
jens@0:         [players addObject: player];
jens@0:         [player release];
jens@0:     }
jens@0:     self.winner = nil;
jens@0:     self.currentPlayer = nil;
jens@0:     self.players = players;
jens@0: }
jens@0: 
jens@0: 
jens@0: - (void) nextPlayer
jens@0: {
jens@0:     if( ! _currentPlayer ) {
jens@0:         NSLog(@"*** The %@ Begins! ***", self.class);
jens@0:         self.currentPlayer = [_players objectAtIndex: 0];
jens@0:     } else {
jens@0:         self.currentPlayer = _currentPlayer.nextPlayer;
jens@0:     }
jens@0:     NSLog(@"Current player is %@",_currentPlayer);
jens@0: }
jens@0: 
jens@0: 
jens@0: - (void) endTurn
jens@0: {
jens@0:     NSLog(@"--- End of turn");
jens@0:     Player *winner = [self checkForWinner];
jens@0:     if( winner ) {
jens@0:         NSLog(@"*** The %@ Ends! The winner is %@ ! ***", self.class, winner);
jens@0:         self.winner = winner;
jens@0:     } else
jens@0:         [self nextPlayer];
jens@0: }
jens@0: 
jens@0: 
jens@0: #pragma mark -
jens@0: #pragma mark GAMEPLAY METHODS TO BE OVERRIDDEN:
jens@0: 
jens@0: 
jens@0: - (BOOL) canBit: (Bit*)bit moveFrom: (id<BitHolder>)src
jens@0: {
jens@0:     return YES;
jens@0: }
jens@0: 
jens@0: - (BOOL) canBit: (Bit*)bit moveFrom: (id<BitHolder>)src to: (id<BitHolder>)dst
jens@0: {
jens@0:     return YES;
jens@0: }
jens@0: 
jens@0: - (void) bit: (Bit*)bit movedFrom: (id<BitHolder>)src to: (id<BitHolder>)dst
jens@0: {
jens@0:     [self endTurn];
jens@0: }
jens@0: 
jens@0: - (BOOL) clickedBit: (Bit*)bit
jens@0: {
jens@0:     return YES;
jens@0: }
jens@0: 
jens@0: - (Player*) checkForWinner
jens@0: {
jens@0:     return nil;
jens@0: }
jens@0: 
jens@0: 
jens@0: @end
jens@0: 
jens@0: 
jens@0: 
jens@0: 
jens@0: @implementation Player
jens@0: 
jens@0: 
jens@0: - (id) initWithGame: (Game*)game
jens@0: {
jens@0:     self = [super init];
jens@0:     if (self != nil) {
jens@0:         _game = game;
jens@0:     }
jens@0:     return self;
jens@0: }
jens@0: 
jens@0: 
jens@0: @synthesize game=_game, name=_name;
jens@0: 
jens@0: - (BOOL) isCurrent      {return self == _game.currentPlayer;}
jens@0: - (BOOL) isFriendly     {return self == _game.currentPlayer;}   // could be overridden for games with partners
jens@0: - (BOOL) isUnfriendly   {return ! self.friendly;}
jens@0: 
jens@0: - (int) index
jens@0: {
jens@0:     return [_game.players indexOfObjectIdenticalTo: self];
jens@0: }
jens@0: 
jens@0: - (Player*) nextPlayer
jens@0: {
jens@0:     return [_game.players objectAtIndex: (self.index+1) % _game.players.count];
jens@0: }
jens@0: 
jens@0: - (Player*) previousPlayer
jens@0: {
jens@0:     return [_game.players objectAtIndex: (self.index-1) % _game.players.count];
jens@0: }
jens@0: 
jens@0: - (NSString*) description
jens@0: {
jens@0:     return [NSString stringWithFormat: @"%@[%@]", self.class,self.name];
jens@0: }
jens@0: 
jens@0: @end
jens@0: 
jens@0: 
jens@0: 
jens@0: 
jens@0: @implementation CALayer (Game)
jens@0: 
jens@0: - (Game*) game
jens@0: {
jens@0:     // The Game object stores a pointer to itself as the value of the "Game" property
jens@0:     // of its root layer. (CALayers can have arbitrary KV properties stored into them.)
jens@0:     for( CALayer *layer = self; layer; layer=layer.superlayer ) {
jens@0:         Game *game = [layer valueForKey: @"Game"];
jens@0:         if( game )
jens@0:             return game;
jens@0:     }
jens@0:     NSAssert1(NO,@"Couldn't look up Game from %@",self);
jens@0:     return nil;
jens@0: }
jens@0: 
jens@0: @end