/*

     File: WormView.h

 Abstract: Implements the basic view class for the WormView. Various subclasses show off varying degrees of optimizations.

  Version: 1.2

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 */

#import <Cocoa/Cocoa.h>

#import "WormGuts.h"

#import "WormController.h"

@interface WormView : NSView {

    WormController *controller;

    NSUInteger initialWormLength;

    NSUInteger wormLength;

    NSUInteger score;

    NSString *wormString;

    NSDictionary *wormTextAttributes;

    float desiredFrameRate;

    float actualFrameRate;

    CFRunLoopTimerRef wormTimer;

    CFAbsoluteTime timeStamp;

    GamePosition *wormPositions;

    GameDirection wormDirection;

    GameHeading wormHeading;

    GamePosition targetPosition;

    NSColor *backgroundColor;

    BOOL gameOver;

}

/* Set/get worm body string */

- (void)setString:(NSString *)string;

- (NSString *)string;

/* Animation parameters */

- (void)setInitialLength:(NSUInteger)length;

- (void)setDesiredFrameRate:(float)rate;

- (float)actualFrameRate;

/* Controller */

- (void)setController:(WormController *)obj;

- (WormController *)controller;

/* Manage the score */

- (NSInteger)score;

- (void)setScore:(NSInteger)newScore;

/* Game control */

- (void)start;

- (void)stop:(BOOL)gameOverFlag;   // Pass in YES if game is over

- (void)reset;             // Stop game and reset for new game

- (BOOL)gameIsRunning;

- (BOOL)gameIsOver;

/* For the use of subclasses */

- (BOOL)updateState;

- (NSRect)rectForPosition:(GamePosition)position;

- (NSRect)integralRectForRect:(NSRect)rect;

/* To be overridden in subclasses */

- (BOOL)performAnimation;

- (void)drawRect:(NSRect)rect;

@end