////////////Template code
//////////// Chunk 4 
//Deal with ball hitting blocks

else if(([nameA containsString:@"Ball"] && [nameB containsString:@"Block"]) || ([nameA containsString:@"Block"] && [nameB containsString:@"Ball"])){
        
        // Figure out which body is exploding
        SKNode *block;
        if([nameA containsString:@"Block"]){
            block = contact.bodyA.node;
        }
        else{
            block = contact.bodyB.node;
        }
        
        // Do the build up
        SKAction *actionAudioRamp = [SKAction playSoundFileNamed:@"sound_block.m4a" waitForCompletion:NO];
        
        NSString *particleRampPath = [[NSBundle mainBundle] pathForResource:@"ParticleRampUp" ofType:@"sks"];
        SKEmitterNode *particleRamp = [NSKeyedUnarchiver unarchiveObjectWithFile:particleRampPath];
        
        particleRamp.position = CGPointMake(0,0);
        particleRamp.zPosition = 0;
        
        SKAction *actionParticleRamp = [SKAction runBlock:^{
            [block addChild:particleRamp];
        }];
        
        //Group
        SKAction *actionRampSequence = [SKAction group:@[actionAudioRamp,actionParticleRamp]];
        
        
        SKAction *actionAudioExplode = [SKAction playSoundFileNamed:@"sound_explode.m4a" waitForCompletion:NO];
        
        NSString *particleExplosionPath = [[NSBundle mainBundle] pathForResource:@"ParticleBlock" ofType:@"sks"];
        
        SKEmitterNode *particleExplosion = [NSKeyedUnarchiver unarchiveObjectWithFile:particleExplosionPath];
        particleExplosion.position = CGPointMake(0,0);
        particleExplosion.zPosition = 2;
        SKAction *actionParticleExplosion = [SKAction runBlock:^{
            [block addChild:particleExplosion];
        }];
        
        NSString *particleScorePath = [[NSBundle mainBundle] pathForResource:@"ParticleScore" ofType:@"sks"];
        
        SKEmitterNode *particleScore = [NSKeyedUnarchiver unarchiveObjectWithFile:particleScorePath];
        particleScore.position = CGPointMake(0,0);
        particleScore.zPosition = 2;
        SKAction *actionParticleScore = [SKAction runBlock:^{
            [block addChild:particleScore];
        }];
        
        
        SKAction *actionRemoveBlock = [SKAction removeFromParent];
        
        SKAction *actionExplodeSequence = [SKAction sequence:@[actionAudioExplode,actionParticleExplosion,[SKAction fadeOutWithDuration:1]]];
        
        SKAction *checkGameOver = [SKAction runBlock:^{
            // Are we out of blocks? If so, game is over. Just wait a second so its
            // not too abrupt.
            BOOL anyBlocksRemaining = ([self childNodeWithName:@"Block"] != nil);
            if (!anyBlocksRemaining) {
                SKView *skView = (SKView *)self.view;
                [self removeFromParent];
                
                MyGameOver *scene = [MyGameOver nodeWithFileNamed:@"GameOver"];
                scene.scaleMode = SKSceneScaleModeAspectFit;
                [skView presentScene:scene];
            };
        }];
        
        [block runAction:[SKAction sequence:@[actionParticleScore,actionRampSequence,actionExplodeSequence,actionRemoveBlock,checkGameOver]]];
        
    }