Test allocating and deallocating the scene.

TestScene

//  Created by Nate
//
//  This is created for the purpose of testing of allocating and deallocating a scene that use a weak and a strong reference.
//  - TEST_WEAK is used to toggle weak and strong
//  - Line 68, the block action is in the middle of the stack. The action sequence can be switch around to test the allocating and deallocating the scene.

#import "TestScene.h"

/*
 This is used to test a weak reference or a strong reference
 */
#define TEST_WEAK 1

static NSUInteger _count = 0;

@implementation TestScene
{
    SKLabelNode *_label;
}

- (void)dealloc
{
    NSLog(@"Test Scene %@ DEALLOCATED", self.name);
}

- (instancetype)initWithSize:(CGSize)size
{
    if(self = [super initWithSize:size]){
        // increment count
        _count++;
        
        // setup scene
        self.name = @(_count).stringValue;
        [self setAnchorPoint:CGPointMake(.5, .5)];
        
        // setup label
        SKLabelNode *label = [[SKLabelNode alloc] init];
        [label setText:@"TEST TEST"];
        [self addChild:label];
        _label = label;
        
        // log
        NSLog(@"Test Scene %@ is Added", self.name);
    } return self;
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    if([_label hasActions]) return;
    
    __weak typeof(self) weakself = self;
    
    // setup actions
    SKAction *rotate = [SKAction rotateByAngle:360 * M_PI/180 duration:2.0f];
    SKAction *wait = [SKAction waitForDuration:1.0f];
    SKAction *blockAction = [SKAction runBlock:^{
#if TEST_WEAK
        [weakself moveNextScene];
#else
        [self moveNextScene];
#endif
    }];
    
    /*
     the block action is the middle of the sequence.
     */
    SKAction *seq = [SKAction sequence:@[rotate,
                                         blockAction,
                                         wait]];
    // run actions
    [_label runAction:seq];
}

- (void)moveNextScene
{
    // present next scene with transition
    SKTransition *transition = [SKTransition fadeWithDuration:1.0f];
    SKScene *newScene = [[[self class] alloc] initWithSize:self.size];
    [self.view presentScene:newScene transition:transition];
}

@end