AnimatedTutorial.h

//
//  AnimatedTutorial.h
//  SpaceBotAlpha
//
//  Created by Sarah Smith on 26/09/2014.
//  Copyright (c) 2014 Smithsoft Pty Ltd. All rights reserved.
//

// Show a movie - eg a .mp4 file - in a windowed frame of a Cocos2D scene.
// Has an "OK, got it" button which dismisses the video.  If the video has
// never been seen before then the button enables when the video is nearly
// finished, otherwise it enables immediately.
//
// The video will keep playing again, after a short pause between plays
// until the "OK, got it" button has been pressed.
//
// The size of the video relative to the scene/screen is determined by an
// empty CCNode in the CCB file, which is assigned to _videoFrame when the
// CCB loads.  The AnimatedTutorial class is the type specified for the root
// node in the CCB so loading the CCB will instantiate the class.

@interface AnimatedTutorial : CCScene

@end

AnimatedTutorial.m

//
//  AnimatedTutorial.m
//  SpaceBotAlpha
//
//  Created by Sarah Smith on 26/09/2014.
//  Copyright (c) 2014 Smithsoft Pty Ltd. All rights reserved.
//

#import <MediaPlayer/MediaPlayer.h>

#define INTER_LOOP_PAUSE 1.0f

@implementation AnimatedTutorial
{
    CCLabelBMFont *_title;
    CCSprite9Slice *_frame;
    PlayButton *_gotItButton;
    NSString *_videoName;
    
    BOOL _moviePlaybackStopped;
    
    MPMoviePlayerController *_movie;
    CCNode *_videoFrame;
    UIView *_videoFrameView;
}

- (void)moviePlayBackDidFinish:(NSNotification *)notification
{
    [_gotItButton setEnabled:YES];
    [_gotItButton pulseButton];
    
    if (_moviePlaybackStopped) return;
    
    CCActionDelay *wait = [CCActionDelay actionWithDuration:INTER_LOOP_PAUSE];
    CCActionCallFunc *run = [CCActionCallFunc actionWithTarget:self selector:@selector(playVideo)];
    [self runAction:[CCActionSequence actions:wait, run, nil]];
}

- (void)moviePlayBackStateDidChange:(NSNotification *)notification
{
    //
}

- (void)initializeMoviePlayer
{
    UIView *mainView = [[CCDirector sharedDirector] view];
    CGRect mainFrameUI = [mainView frame];
    CGSize mainViewSizeUI = mainFrameUI.size;
    
    CGSize mainFrameSz = [[CCDirector sharedDirector] viewSize];
    CGSize videoFrameSz = [_videoFrame contentSizeInPoints];
    CGSize ratio = CGSizeMake(videoFrameSz.width/mainFrameSz.width, videoFrameSz.height/mainFrameSz.height);
    CGSize videoFrameUISz = CGSizeMake(ratio.width * mainViewSizeUI.width, ratio.height * mainViewSizeUI.height);
    
    // For UIKit the origin point is top-left
    CGPoint videoFrameOrigin = [_videoFrame convertToWorldSpace:ccp(0.0f, videoFrameSz.height)];
    CGPoint videoFrameOriginUI = [[CCDirector sharedDirector] convertToUI:videoFrameOrigin];
    
    CGRect frameUI;
    frameUI.origin = videoFrameOriginUI;
    frameUI.size = videoFrameUISz;
    
    _videoFrameView = [[UIView alloc] initWithFrame:frameUI];
    [_videoFrameView setBackgroundColor:[UIColor redColor]];
    [mainView addSubview:_videoFrameView];
    
    _movie = [[MPMoviePlayerController alloc] init];
    [_movie setRepeatMode:(MPMovieRepeatModeNone)];
    [_movie setControlStyle:MPMovieControlStyleNone];
    [_movie setScalingMode:MPMovieScalingModeAspectFit];
    [_movie setMovieSourceType:(MPMovieSourceTypeStreaming)];
    CGRect movieFrame;
    movieFrame.size = frameUI.size;
    [[_movie view] setFrame:movieFrame];  // player's frame must match parent's
    
    [_videoFrameView addSubview: [_movie view]];
    [_videoFrameView bringSubviewToFront:[_movie view]];
    
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlayBackDidFinish:)
                                                 name:MPMoviePlayerPlaybackDidFinishNotification
                                               object:_movie];
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(moviePlayBackStateDidChange:)
                                                 name:MPMoviePlayerPlaybackStateDidChangeNotification
                                               object:_movie];
}

- (void)tearDownMoviePlayer
{
    [_movie stop];
    
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [[_movie view] removeFromSuperview];
    [_videoFrameView removeFromSuperview];
    
    _movie = nil;
}

- (void)playVideo
{
    NSString *introVideoPath = [[NSBundle mainBundle] pathForResource:_videoName ofType:@"m4v"];
    NSAssert(introVideoPath, nil);
    
    if (_movie == nil)
    {
        [self initializeMoviePlayer];
    }
    NSURL *movieUrl = [NSURL fileURLWithPath:introVideoPath];
    [_movie setContentURL:movieUrl];
    [_movie prepareToPlay];
    [_movie play];
}

- (void)okPressed:(id)sender
{
    CCScene *gameScene = nil;
    [self tearDownMoviePlayer];
    
    gameScene = [CCBReader loadAsScene:@"MainScreen/MainScene"];
    [[CCDirector sharedDirector] replaceScene:gameScene withTransition:[CCTransition transitionFadeWithDuration:1.0f]];
}

- (void)onEnter
{
    [super onEnter];
    
    NSString *tutName = tutorialNameForIndex([[GameData sharedGameData]currentTutorial]);
    BOOL animationHasBeenSeen = [[[GameData sharedGameData] hintsDisplayed] containsObject:tutName];
    [_gotItButton setEnabled:animationHasBeenSeen];
    [_gotItButton setTarget:self withSelector:@selector(okPressed:)];
    if (!animationHasBeenSeen)
    {
        CCActionDelay *waitABit = [CCActionDelay actionWithDuration:7.0f];
        CCActionCallBlock *enableButton = [CCActionCallBlock actionWithBlock:^{
            [_gotItButton setEnabled:YES];
            [self setUpLevelPreview];
        }];
        [self runAction:[CCActionSequence actions:waitABit, enableButton, nil]];
        [[GameData sharedGameData] markHintDisplayed:tutName];
    }
}

- (void)onEnterTransitionDidFinish
{
    [super onEnterTransitionDidFinish];
    [self initializeMoviePlayer];
    
    if ([[GameData sharedGameData] currentLevel] == 0)
    {
        if ([[GameData sharedGameData] currentTutorial] == TutorialBuilding)
        {
            _videoName = @"01_build-iphone";
            NSString *titleString = NSLocalizedString(@"Back to the sides & score!", nil);
            [_title setString:titleString];
        }
        else if ([[GameData sharedGameData] currentTutorial] == TutorialPowerups)
        {
            _videoName = @"02_collide-iphone";
            NSString *titleString = NSLocalizedString(@"Aim clear of corners!", nil);
            [_title setString:titleString];
        }
    }
    else if ([[GameData sharedGameData] currentLevel] == 1)
    {
        NSString *titleString = NSLocalizedString(@"Use your shields Alpha!", nil);
        [_title setString:titleString];
        _videoName = @"03_squid-iphone";
    }
    else
    {
        NSLog(@"##### Error: No animated tutorial for this level!");
    }
    [self playVideo];
}

@end