/*

 Copyright (C) 2016 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Square class encapsulates a single square on the board.

 */

#import "AAPLTicTacToeSquare.h"

@implementation AAPLTicTacToeSquare

+ (AAPLTicTacToeSquare *)X

{

    return [[self alloc] initWithType:AAPLTicTacToeSquareTypeX];

}

+ (AAPLTicTacToeSquare *)O

{

    return [[self alloc] initWithType:AAPLTicTacToeSquareTypeO];

}

+ (AAPLTicTacToeSquare *)Empty

{

    return [[self alloc] initWithType:AAPLTicTacToeSquareTypeEmpty];

}

- (instancetype)initWithType:(AAPLTicTacToeSquareType)type

{

    self = [super init];

    if ( self != nil )

    {

        _type = type;

    }

    return self;

}

- (BOOL)isX

{

    return self.type == AAPLTicTacToeSquareTypeX;

}

- (BOOL)isO

{

    return self.type == AAPLTicTacToeSquareTypeO;

}

- (BOOL)isEmpty

{

    return self.type == AAPLTicTacToeSquareTypeEmpty;

}

- (void)makeX

{

    self.type = AAPLTicTacToeSquareTypeX;

}

- (void)makeO

{

    self.type = AAPLTicTacToeSquareTypeO;

}

- (void)makeEmpty

{

    self.type = AAPLTicTacToeSquareTypeEmpty;

}

- (BOOL)sameTypeAs:(AAPLTicTacToeSquare *)square

{

    return square.type == self.type;

}

- (NSString *)description

{

    if ( self.isX )

    {

        return NSLocalizedString(@"X", nil);

    }

    else if ( self.isO )

    {

        return NSLocalizedString(@"O", nil);

    }

    else

    {

        return  NSLocalizedString(@"empty", nil);

    }

}

@end