/*

 ===== IMPORTANT =====

 This is sample code demonstrating API, technology or techniques in development.

 Although this sample code has been reviewed for technical accuracy, it is not

 final. Apple is supplying this information to help you plan for the adoption of

 the technologies and programming interfaces described herein. This information

 is subject to change, and software implemented based on this sample code should

 be tested with final operating system software and final documentation. Newer

 versions of this sample code may be provided with future seeds of the API or

 technology. For information about updates to this and other developer

 documentation, view the New & Updated sidebars in subsequent documentation

 seeds.

 =====================

 File: TankViewController.h

 Abstract: A simple game showing off the features of GameKit.

 Version: 1.0

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 */

#import <UIKit/UIKit.h>

#import <GameKit/GameKit.h>

#define NUMWALLS    32

typedef enum {

    BLOCK_VERTICAL,

    BLOCK_HORIZONTAL

} levelBlockType;

typedef enum {

    NETWORK_ACK,                    // no packet

    NETWORK_COINTOSS,               // decide who is going to be the server

    NETWORK_MOVE_EVENT,             // send position

    NETWORK_FIRE_EVENT,             // send fire

    NETWORK_HEARTBEAT               // send of entire state at regular intervals

} packetCodes;

typedef struct {

    CGPoint     tankPreviousPosition;

    CGPoint     tankPosition;

    CGPoint     tankMissilePosition;

    CGPoint     tankDestination;

    float       tankRotation;

    float       tankDirection;

    float       tankMissileDirection;

    int         tankMissile;

} tankInfo;

@interface TankViewController : UIViewController <GKPeerPickerControllerDelegate, GKSessionDelegate, UIAlertViewDelegate> {

    IBOutlet    UIImageView     *tank1;

    IBOutlet    UIImageView     *tank2;

    IBOutlet    UIImageView     *missile1;

    IBOutlet    UIImageView     *missile2;

    IBOutlet    UILabel         *gameLabel;

    IBOutlet    UILabel         *score1;

    IBOutlet    UILabel         *score2;

    UIImageView *walls[NUMWALLS];

    UIImage     *levelBlockV;

    UIImage     *levelBlockH;

    CGPoint     tank1Start;

    CGPoint     tank2Start;

    tankInfo    tankStats[2];

    int         levelBlocks;

    int         playerScore1, playerScore2;

    NSInteger   gameState;

    NSInteger   peerStatus;

    // networking

    GKSession       *gameSession;

    int             gameUniqueID;

    int             gamePacketNumber;

    NSString        *gamePeerId;

    NSDate          *lastHeartbeatDate;

    UIAlertView     *connectionAlert;

}

@property(nonatomic, retain) IBOutlet UIImageView   *tank1;

@property(nonatomic, retain) IBOutlet UIImageView   *tank2;

@property(nonatomic, retain) IBOutlet UIImageView   *missile1;

@property(nonatomic, retain) IBOutlet UIImageView   *missile2;

@property(nonatomic, retain) IBOutlet UILabel       *gameLabel;

@property(nonatomic, retain) IBOutlet UILabel       *score1;

@property(nonatomic, retain) IBOutlet UILabel       *score2;

@property(nonatomic, retain) UIImage *levelBlockV;

@property(nonatomic, retain) UIImage *levelBlockH;

@property(nonatomic) NSInteger      gameState;

@property(nonatomic) NSInteger      peerStatus;

@property(nonatomic, retain) GKSession   *gameSession;

@property(nonatomic, copy)   NSString    *gamePeerId;

@property(nonatomic, retain) NSDate      *lastHeartbeatDate;

@property(nonatomic, retain) UIAlertView *connectionAlert;

- (void)invalidateSession:(GKSession *)session;

- (void)playerReset;

- (void)updateTanks;

- (void)gameLoop;

- (void)addToLevel:(levelBlockType)bType atX:(float)x atY:(float)y width:(float)w height:(float)h;

- (void)sendNetworkPacket:(GKSession *)session packetID:(int)packetID withData:(void *)data ofLength:(int)length reliable:(BOOL)howtosend;

- (BOOL)parseXMLFileAtURL:(NSURL *)URL parseError:(NSError **)error;

@end