我今年17岁,对这一切还很陌生,但是我已经学习了一段时间,并且掌握了基本知识,但是在构建和运行应用程序时却遇到了什么都不显示的问题。

我正在制作一个简单的“类似乒乓球的游戏”,它具有一个带有四个选项的菜单,每个菜单具有不同的“游戏”视图,但是,我只是专注于具有一个“游戏”视图的菜单,直到我弄清楚出了什么问题。 beofre我为其他3种类型的“游戏场景”(网球,经典,溜冰场,沙滩球-使用网球atm)添加了其他3个视图。这是我的AppDelegate.h文件的代码;

#import <UIKit/UIKit.h>

@class ViewController;

@interface AppDelegate : NSObject <UIApplicationDelegate> {

UIWindow *window;
ViewController *viewController;

}

@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet ViewController *viewController;

@end

这是AppDelegate.m文件;
#import "AppDelegate.h"
#import "ViewController.h"

@implementation AppDelegate

@synthesize window;
@synthesize viewController;


- (void)applicationDidFinishLaunching:(UIApplication *)application {

// Override point for customization after app launch
[window addSubview:viewController.view];
[window makeKeyAndVisible];
}



@end

接下来是ViewContoller.h文件;
#import <UIKit/UIKit.h>

@interface ViewController : UIViewController {

IBOutlet UIImageView *menuBG;

IBOutlet UIButton *playClassic;
IBOutlet UIButton *playTennis;
IBOutlet UIButton *playIceHockey;
IBOutlet UIButton *playBeachball;

IBOutlet UIImageView *court;
IBOutlet UIImageView *ball;
IBOutlet UIImageView *racquet_blue;
IBOutlet UIImageView *racquet_red;

IBOutlet UILabel *tapToBegin;


IBOutlet UILabel *player_score;
IBOutlet UILabel *computer_score;

CGPoint ballVelocity;

NSInteger gameState;
NSInteger previousState;

NSInteger player_score_value;
NSInteger computer_score_value;

IBOutlet UIButton *back;


}

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

@property(nonatomic,retain) IBOutlet UIButton *playClassic;
@property(nonatomic,retain) IBOutlet UIButton *playTennis;
@property(nonatomic,retain) IBOutlet UIButton *playIceHockey;
@property(nonatomic,retain) IBOutlet UIButton *playBeachball;

@property(nonatomic,retain) IBOutlet UIImageView *court;
@property(nonatomic,retain) IBOutlet UIImageView *ball;
@property(nonatomic,retain) IBOutlet UIImageView *racquet_red;
@property(nonatomic,retain) IBOutlet UIImageView *racquet_blue;

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


@property(nonatomic,retain) IBOutlet UILabel *player_score;
@property(nonatomic,retain) IBOutlet UILabel *computer_score;

@property(nonatomic) CGPoint ballVelocity;

@property(nonatomic) NSInteger gameState;
@property(nonatomic) NSInteger previousState;

@property(nonatomic,retain) IBOutlet UIButton *back;

-(void)reset:(BOOL) newGame;


-(IBAction)playClassicButtonClicked;
-(IBAction)playTennisButtonClicked;
-(IBAction)playIceHockeyButtonClicked;
-(IBAction)playBeachballButtonClicked;
-(IBAction)BackButtonClicked;

@end

这是ViewContoller.m文件;
#import "ViewController.h"

#define kGameStateRunning 1
#define kGameStatePaused  2
#define kStateMenu  1

#define kBallSpeedX 4
#define kBallSpeedY 6

#define kCompMoveSpeed 3
#define kScoreToWin 5

@implementation ViewController
@synthesize      ball,racquet_blue,racquet_red,player_score,computer_score,gameState,ballVelocity,tapToBegin,back,menuBG,playBeachball,playClassic,playIceHockey,playTennis,court,previousState;

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
if(gameState == kGameStatePaused) {
    tapToBegin.hidden = YES;
    gameState = kGameStateRunning;
} else if(gameState == kGameStateRunning) {
    [self touchesMoved:touches withEvent:event];
}
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];
CGPoint location = [touch locationInView:touch.view];
CGPoint xLocation = CGPointMake(location.x,racquet_blue.center.y);
racquet_blue.center = xLocation;
 }

-(void) gameLoop {
// Running
if(gameState == kGameStateRunning) {

    if (previousState != kGameStateRunning)
    {
        menuBG.hidden = 1;

        playClassic.hidden = 1;
        playTennis.hidden = 1;
        playIceHockey.hidden= 1;
        playBeachball.hidden = 1;

        ball.hidden = 0;
        court.hidden = 0;
        racquet_blue.hidden = 0;
        racquet_red.hidden = 0;
        player_score.hidden = 0;
        computer_score.hidden = 0;
        tapToBegin.hidden = 0;
        back.hidden = 0;

    }

    previousState = kGameStateRunning;
}
else if (gameState == kStateMenu)
{
    if(previousState != kStateMenu) {

        menuBG.hidden = 0;

        playClassic.hidden = 0;
        playTennis.hidden = 0;
        playIceHockey.hidden = 0;
        playBeachball.hidden = 0;

        ball.hidden = 1;
        court.hidden = 1;
        racquet_blue.hidden = 1;
        racquet_red.hidden = 1;
        player_score.hidden = 1;
        computer_score.hidden = 1;
        tapToBegin.hidden = 1;
        back.hidden = 1;
    }
    previousState = kStateMenu;


    }

    ball.center = CGPointMake(ball.center.x + ballVelocity.x , ball.center.y +    ballVelocity.y);

    if(ball.center.x > self.view.bounds.size.width || ball.center.x < 0) {
        ballVelocity.x = -ballVelocity.x;
    }

    if(ball.center.y > self.view.bounds.size.height || ball.center.y < 0) {
        ballVelocity.y = -ballVelocity.y;
    }

    if(CGRectIntersectsRect(ball.frame,racquet_blue.frame)) {
        if(ball.center.y < racquet_blue.center.y) {
            ballVelocity.y = -ballVelocity.y;
            NSLog(@"%f %f",ball.center,racquet_red.center);
        }
    }


    if(CGRectIntersectsRect(ball.frame,racquet_red.frame)) {
        if(ball.center.y > racquet_red.center.y) {
            ballVelocity.y = -ballVelocity.y;
        }
    }


    // Begin Simple AI
    if(ball.center.y <= self.view.center.y) {
        if(ball.center.x < racquet_red.center.x) {
            CGPoint compLocation = CGPointMake(racquet_red.center.x - kCompMoveSpeed, racquet_red.center.y);
            racquet_red.center = compLocation;
        }


            if(ball.center.x > racquet_red.center.x) {
                CGPoint compLocation = CGPointMake(racquet_red.center.x + kCompMoveSpeed, racquet_red.center.y);
                racquet_red.center = compLocation;
            }
        }


    // Begin Scoring Game Logic
    if(ball.center.y <= 0) {
        player_score_value++;
        [self reset:(player_score_value >= kScoreToWin)];
    }


    if(ball.center.y > self.view.bounds.size.height) {
        computer_score_value++;
        [self reset:(computer_score_value >= kScoreToWin)];
    }

    else {
    if(tapToBegin.hidden) {
        tapToBegin.hidden = NO;
    }
}
}

-(void)reset:(BOOL) newGame {
self.gameState = kGameStatePaused;
ball.center = self.view.center;
if(newGame) {
    if(computer_score_value > player_score_value) {
        tapToBegin.text = @"Computer Wins!";
    } else {
        tapToBegin.text = @"Player Wins!";
    }

    computer_score_value = 0;
    player_score_value = 0;
} else {
    tapToBegin.text = @"Tap To Begin";
}

player_score.text = [NSString stringWithFormat:@"%d",player_score_value];
computer_score.text = [NSString stringWithFormat:@"%d",computer_score_value];
}

- (void)viewDidLoad {
[super viewDidLoad];
gameState = kStateMenu;
self.gameState = kGameStatePaused;
ballVelocity = CGPointMake(kBallSpeedX,kBallSpeedY);
[NSTimer scheduledTimerWithTimeInterval:0.01 target:self selector:@selector(gameLoop)    userInfo:nil repeats:YES];
}



-(IBAction)playClassicButtonClicked {
gameState = kGameStateRunning;
}

-(IBAction)playTennisButtonClicked {
gameState = kGameStateRunning;
}

-(IBAction)playIceHockeyButtonClicked {
gameState = kGameStateRunning;
}

-(IBAction)playBeachballButtonClicked {
gameState = kGameStateRunning;
}

- (IBAction)BackButtonClicked {
gameState = kStateMenu;
}

- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview
// Release anything that's not essential, such as cached data
}




@end

对于大量信息,我深表歉意,但我希望您能意识到,我正在尽力使我要显示/实现的内容尽可能清晰,从而使您更容易回答。

如果您需要任何其他信息或发现任何“主题错误”,请随时告诉我,我将非常感谢并将其张贴在任何缺少的信息上。我非常感谢您的帮助,谢谢Ryan :)

最佳答案

[window addSubview:viewController.view];
[window makeKeyAndVisible];

而不是上面

做这个
window.rootViewController = viewController;
[window makeKeyAndVisible];

关于iphone - 构建并运行应用程序后,iPhone Simulator屏幕为黑色,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/13921044/

10-12 04:22