/*  This code is based on Apple's "GeekGameBoard" sample code, version 1.0.

     http://developer.apple.com/samplecode/GeekGameBoard/

     Copyright © 2007 Apple Inc. Copyright © 2008 Jens Alfke. All Rights Reserved.

     Redistribution and use in source and binary forms, with or without modification, are permitted

     provided that the following conditions are met:

     * Redistributions of source code must retain the above copyright notice, this list of conditions

       and the following disclaimer.

     * Redistributions in binary form must reproduce the above copyright notice, this list of

       conditions and the following disclaimer in the documentation and/or other materials provided

       with the distribution.

     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR

     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 

     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRI-

     BUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 

     PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 

     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 

     THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

 #import "DemoBoardView.h"

 #import "Game.h"

 #import "Turn.h"

 #import "Player.h"

 #import "GGBTextLayer.h"

 #import "QuartzUtils.h"

 @implementation DemoBoardView

 /** Class names of available games */

 static NSString* const kMenuGameNames[] = {@"KlondikeGame", @"CheckersGame", @"HexchequerGame",

                                            @"TicTacToeGame", @"GoGame"};

 /** Class name of the current game. */

 static NSString* sCurrentGameName = @"CheckersGame";

 - (IBAction) toggleRemoteOpponent: (id)sender

 {

     NSAssert(self.game.currentTurnNo==0,@"Game has already begun");

     Player *opponent = [self.game.players objectAtIndex: 1];

     opponent.local = !opponent.local;

 }

 - (void) startGameNamed: (NSString*)gameClassName

 {

     [self.game removeObserver: self 

            forKeyPath: @"currentPlayer"];

     [self.game removeObserver: self

            forKeyPath: @"winner"];

     [super startGameNamed: gameClassName];

     [self.game addObserver: self 

            forKeyPath: @"currentPlayer"

               options: NSKeyValueObservingOptionInitial

               context: NULL];

     [self.game addObserver: self

            forKeyPath: @"winner"

               options: 0 

               context: NULL];

     self.window.title = [(id)[self.game class] displayName];

 }

 - (CGRect) gameBoardFrame

 {

     CGRect bounds = [super gameBoardFrame];

     bounds.size.height -= 32;                   // Leave room for headline

     return CGRectInset(bounds,4,4);

 }

 - (BOOL)canBecomeKeyView        {return YES;}

 - (BOOL)acceptsFirstResponder   {return YES;}

 - (void) awakeFromNib

 {

     srandomdev();

     // BoardView supports receiving dragged images, but you have to register for them:

     [self registerForDraggedTypes: [NSImage imagePasteboardTypes]];

     [self registerForDraggedTypes: [NSArray arrayWithObject: NSFilenamesPboardType]];

     CGRect bounds = self.layer.bounds;

     self.layer.backgroundColor = GetCGPatternNamed(@"Background.png");

     bounds.size.height -= 32;

     _headline = [GGBTextLayer textLayerInSuperlayer: self.layer

                                            withText: nil

                                            fontSize: 24

                                           alignment: kCALayerWidthSizable | kCALayerMinYMargin];

     [self startGameNamed: sCurrentGameName];

     [_turnSlider bind: @"value"    toObject: self withKeyPath: @"game.currentTurnNo" options: nil];

 }

 - (IBAction) startGameFromMenu: (id)sender

 {

     sCurrentGameName = kMenuGameNames[ [sender tag] ];

     [self startGameNamed: sCurrentGameName];

 }

 - (void)observeValueForKeyPath:(NSString *)keyPath 

                       ofObject:(id)object 

                         change:(NSDictionary *)change

                        context:(void *)context

 {

     Game *game = self.game;

     if( object == game ) {

         NSLog(@"maxTurnNo = %u, currentTurnNo = %u", 

               self.game.maxTurnNo,self.game.currentTurnNo);

         NSLog(@"Game state = '%@'", self.game.currentTurn.boardState);

         _turnSlider.maxValue = self.game.maxTurnNo;

         _turnSlider.numberOfTickMarks = self.game.maxTurnNo+1;

         Player *p = game.winner;

         NSString *msg;

         if( p ) {

             // The game is won

             [[NSSound soundNamed: @"Sosumi"] play];

             if( self.game.local )

                 msg = @"%@ wins! Congratulations!";

             else

                 msg = p.local ?@"You Win! Congratulations!" :@"You Lose ... :-(";

         } else {

             // Otherwise go on to the next turn:

             p = game.currentPlayer;

             msg = @"Your turn, %@";

         }

         _headline.string = [NSString stringWithFormat: msg, p.name];

     }

 }

 - (IBAction) undo: (id)sender

 {

     if( self.game.currentTurn > 0 )

         self.game.currentTurnNo--;

     else

         NSBeep();

 }

 - (IBAction) redo: (id)sender

 {

     if( self.game.currentTurnNo < self.game.maxTurnNo )

         self.game.currentTurnNo++;

     else

         NSBeep();

 }

 #pragma mark -

 #pragma mark NSAPPLICATION DELEGATE:

 - (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)sender

 {

     return YES;

 }

 @end