How to start a Cocos2D Scene when pushing a UIViewController - ios

Question

I'm working on a project for iOS 5 and 6, iPad 3.
My problem is that I need to draw something with Cocos2D in a scene, but it doesn't work.
I'm starting to code in AppDelegate - setting a rootViewController (MainViewController)
In this MainViewController, I have a button, that fires a method called -draw:
The -draw: method is very simple.
DrawController * c = [DrawController alloc]init];
[self.navigationController pushViewController:c animated:YES];
Now when the App pushes the DrawController,
my App should make a Scene with Cocos2D using CCDirector.
but its very frustrating, because I have always a black gap on the screen.
DrawController
- (void)viewDidLoad
{
[super viewDidLoad];
glView = [CCGLView viewWithFrame:[self.view bounds]
pixelFormat:kEAGLColorFormatRGB565 //kEAGLColorFormatRGBA8
depthFormat:0 //GL_DEPTH_COMPONENT24_OES
preserveBackbuffer:NO
sharegroup:nil
multiSampling:NO
numberOfSamples:0];
director_ = (CCDirectorIOS*) [CCDirector sharedDirector];
director_.wantsFullScreenLayout = YES;
// Display FSP and SPF
[director_ setDisplayStats:YES];
// set FPS at 60
[director_ setAnimationInterval:1.0/60];
// attach the openglView to the director
[director_ setView:glView];
// for rotation and other messages
[director_ setDelegate:(id <CCDirectorDelegate>) [[UIApplication sharedApplication] delegate]];
UIButton * redColor = [UIButton buttonWithType:UIButtonTypeRoundedRect];
redColor.tag = 1;
redColor.frame = CGRectMake(658, 80, 100, 30);
[redColor setTitle:#"ROT" forState:UIControlStateNormal];
[redColor addTarget:self action:#selector(changeColor:) forControlEvents:UIControlEventTouchUpInside];
[glView addSubview:redColor];
UIButton * blueColor = [UIButton buttonWithType:UIButtonTypeRoundedRect];
blueColor.tag = 2;
blueColor.frame = CGRectMake(658, 80+30+30, 100, 30);
[blueColor setTitle:#"BLAU" forState:UIControlStateNormal];
[blueColor addTarget:self action:#selector(changeColor:) forControlEvents:UIControlEventTouchUpInside];
[glView addSubview:blueColor];
UIButton * undo = [UIButton buttonWithType:UIButtonTypeRoundedRect];
undo.tag = 1;
undo.frame = CGRectMake(658, 80 +30+30 +30+30, 100, 30);
[undo setTitle:#"UNDO" forState:UIControlStateNormal];
[undo addTarget:self action:#selector(changeHistory:) forControlEvents:UIControlEventTouchUpInside];
[glView addSubview:undo];
UIButton * foto = [UIButton buttonWithType:UIButtonTypeRoundedRect];
foto.tag = 1;
foto.frame = CGRectMake(658, 80 +30+30 +30+30 +30+30, 100, 30);
[foto setTitle:#"FOTO" forState:UIControlStateNormal];
[foto addTarget:self action:#selector(takeScreenshot:) forControlEvents:UIControlEventTouchUpInside];
[glView addSubview:foto];
UIStepper * overdrawStepper = [[UIStepper alloc] initWithFrame:CGRectMake(658, 80 +30+30 +30+30 +30+30 +30+30, 100, 30)];
overdrawStepper.value = 1;
overdrawStepper.minimumValue = 1;
overdrawStepper.maximumValue = 18;
overdrawStepper.stepValue = 1;
[overdrawStepper addTarget:self action:#selector(overdraw:) forControlEvents:UIControlEventValueChanged];
[glView addSubview:overdrawStepper];
UIStepper * thicknessStepper = [[UIStepper alloc] initWithFrame:CGRectMake(658, 80 +30+30 +30+30 +30+30 +30+30 +30+30, 100, 30)];
thicknessStepper.value = 3;
thicknessStepper.minimumValue = 1;
thicknessStepper.maximumValue = 30;
thicknessStepper.stepValue = 1;
[thicknessStepper addTarget:self action:#selector(thickness:) forControlEvents:UIControlEventValueChanged];
[glView addSubview:thicknessStepper];
UIStepper * alphaStepper = [[UIStepper alloc] initWithFrame:CGRectMake(658, 80 +30+30 +30+30 +30+30 +30+30 +30+30 +30+30, 100, 30)];
alphaStepper.value = 1;
alphaStepper.minimumValue = 0.1;
alphaStepper.maximumValue = 1;
alphaStepper.stepValue = 0.1;
[alphaStepper addTarget:self action:#selector(alpha:) forControlEvents:UIControlEventValueChanged];
[glView addSubview:alphaStepper];
UIButton * eraser = [UIButton buttonWithType:UIButtonTypeRoundedRect];
eraser.tag = 1;
eraser.frame = CGRectMake(658, 80 +30+30 +30+30 +30+30 +30+30 +30+30 +30+30 +30+30, 100, 30);
[eraser setTitle:#"Eraser" forState:UIControlStateNormal];
[eraser addTarget:self action:#selector(erase:) forControlEvents:UIControlEventTouchUpInside];
[glView addSubview:eraser];
// 2D projection
[director_ setProjection:kCCDirectorProjection2D];
// [director setProjection:kCCDirectorProjection3D];
// Enables High Res mode (Retina Display) on iPhone 4 and maintains low res on all other devices
if( ! [director_ enableRetinaDisplay:YES] )
CCLOG(#"Retina Display Not supported");
// set the Navigation Controller as the root view controller
// there is a iOS 6 Bug, so we need have this workaround
[self addChildViewController:director_];
// Add the director's OpenGL view as a subview so we can see it.
[self.view addSubview:director_.view];
// Finish up our view controller containment responsibilities.
[director_ didMoveToParentViewController:self];
// director_.view.frame = CGRectMake(0, 0, 1024, 1024);
// Default texture format for PNG/BMP/TIFF/JPEG/GIF images
// It can be RGBA8888, RGBA4444, RGB5_A1, RGB565
// You can change anytime.
[CCTexture2D setDefaultAlphaPixelFormat:kCCTexture2DPixelFormat_RGBA8888];
// Assume that PVR images have premultiplied alpha
[CCTexture2D PVRImagesHavePremultipliedAlpha:YES];
// and add the scene to the stack. The director will run it when it automatically when the view is displayed.
self.view.backgroundColor = [UIColor orangeColor];
if ([self loadImage]) {
lineDrawer = [[LineDrawer alloc] initWithImage:[self loadImage]];
} else {
lineDrawer = [LineDrawer node];
}
CCScene *scene = [CCScene node];
//[scene setContentSize:glView.frame.size];
[scene addChild:lineDrawer];
[director_ pushScene: scene];
NSLog(#"self.view.frame %#", NSStringFromCGRect(self.view.frame));
// Do any additional setup after loading the view.
#import "cocos2d.h"
#interface LineDrawer : CCLayer
- (id)initWithImage:(UIImage*)imageName;
// change the color of line
- (void)changeLineColorToRed:(float)r_ green:(float)g_ blue:(float)b_ alpha:(float)a_;
// the undo function to call. When you undo the last line, the also will be an change in line color
- (void)undo;
// get the actual drawing from screen
- (UIImage*)getScreenShot;
// property change methods
- (void)changeOverdraw:(float)overdraw_;
- (void)changeThikness:(int)thikness_;
- (void)changeAlpha:(float)alpha_;
#end
- (id)initWithImage:(UIImage *)image
{
self = [super init];
if (self) {
points = [NSMutableArray array];
velocities = [NSMutableArray array];
circlesPoints = [NSMutableArray array];
_undoManager = [[RMUndoManager alloc] init];
shaderProgram_ = [[CCShaderCache sharedShaderCache] programForKey:kCCShader_PositionColor];
overdraw = 1.0f;
CCTexture2D * imageTexture = [[CCTexture2D alloc] initWithCGImage:image.CGImage
resolutionType:kCCResolutioniPadRetinaDisplay];
CCSprite *backGroundSprite = [[CCSprite alloc] initWithTexture: imageTexture];
[backGroundSprite setPosition:CGPointMake(768/2, 1024/2)];
renderTexture = [[CCRenderTexture alloc] initWithWidth:(int)self.contentSize.width
height:(int)self.contentSize.height
pixelFormat:kCCTexture2DPixelFormat_RGBA8888];
renderTexture.anchorPoint = ccp(0,0);
renderTexture.position = ccp(1024 * 0.5f, 768 * 0.5f);
renderTexture.sprite = backGroundSprite;
[[renderTexture sprite] setBlendFunc:(ccBlendFunc){GL_ONE, GL_ONE_MINUS_SRC_ALPHA}];
[renderTexture clear:1.0f g:1.0f b:1.0f a:0];
[renderTexture begin];
[backGroundSprite visit];
[renderTexture end];
[self addChild:renderTexture];
self.isTouchEnabled = YES;
ccColor4F c = {0, 0, 190.0f/255.0f, 1};
drawColor = c;
thikness = 3;
UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self
action:#selector(handlePanGesture:)];
panGestureRecognizer.maximumNumberOfTouches = 1;
[self addGestureRecognizer:panGestureRecognizer];
UILongPressGestureRecognizer *longPressGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self
action:#selector(handleLongPress:)];
[self addGestureRecognizer:longPressGestureRecognizer];
UITapGestureRecognizer * tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self
action:#selector(handleTap:)];
tapGestureRecognizer.numberOfTapsRequired = 1;
[self addGestureRecognizer:tapGestureRecognizer];
}
return self;
}
can someone help me with this?
https://dl.dropbox.com/u/15710714/iOS%20Simulator%20Bildschirmfoto%2023.01.2013%2016.17.57.png

Answer 1

just add [director_ startAnimation];
below [director_ pushScene: scene];