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iOS

Posted by James Brown
James Brown
2,095 Points

Gesture Recogniser crashing on level up

I am trying to implement a gesture recogniser and everything is working well until it comes to loading the next level, then at the next level stage, where can tap to go to the next level, if I use a gesture, the program crashes. My gesture recogniser is below.

- (void)didMoveToView:(SKView*)view {

    UIGestureRecognizer *spinner = [[UIPanGestureRecognizer alloc] initWithTarget:self     action:@selector(handlePanGesture:)];
    [self.view addGestureRecognizer:spinner];

}



- (void)handlePanGesture:(UIPanGestureRecognizer *)gestureRecognizer {

    CGPoint velocity = [gestureRecognizer velocityInView:self.view];

    if (velocity.y > 0) {

            NSLog(@"gesture went down");

    } else {

            NSLog(@"gesture went up");

    }
}

The problem may be in the way I am incrementing levels or implementing touch so here is the touches began method and the level increment code

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    BOMPlayerNode *playerNode = (BOMPlayerNode*)[self childNodeWithName:@"Player"];

    if (!self.restart) {

        for (UITouch *touch in touches) {
    CGPoint positionInScene = [touch locationInNode:self];

    int duration = 1.0;

    SKAction * actionMove = [SKAction moveTo:CGPointMake(positionInScene.x, positionInScene.y) duration:duration];
    [playerNode runAction:actionMove];

        }
    } else if ( self.restart && self.nextLevel ) {
        levelCount++;
        for (SKNode *node in [self children]) {
            [node removeFromParent];
        }


        BOMGamePlayScene *scene = [BOMGamePlayScene sceneWithSize:self.view.bounds.size];
        [self.view presentScene:scene];

    } else if ( self.restart && self.tryAgain ) {
        for (SKNode *node in [self children]) {
            [node removeFromParent];
        }


        BOMGamePlayScene *scene = [BOMGamePlayScene sceneWithSize:self.view.bounds.size];
        [self.view presentScene:scene];
    }

}

- (void) update:(NSTimeInterval)currentTime {

    if (GameOverConditions) {

        self.tryAgain = YES;
        self.restart = YES;
        [self performGameOver];

    } else if (NextLevelConditions) {

        self.restart = YES;
        self.nextLevel = YES;
        [self performNextLevel];

    }

}


- (void) performGameOver {
    if (!self.gameOverDisplayed) {
        BOMGameOverNode *gameOver = [BOMGameOverNode gameOverAtPosition:CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame))];
        self.gameOverDisplayed = YES;
    }

}

- (void) performNextLevel {
    if (!self.nextLevelDisplayed) {
        BOMNextLevelNode *nextLevel = [BOMNextLevelNode     nextLevelAtPosition:CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame))];
        self.nextLevelDisplayed = YES;
    }

}

Any help would be much appreciated.