Schogini

NSMutableAttributedString *myAttrStr = [[NSMutableAttributedString alloc] initWithString:@"my test string"]; // Creating a NSAttributedString object

CGColorRef myRedColor = [UIColor redColor].CGColor; // Creating a CGColorRef to set the value to

NSDictionary *newAttribute = [NSDictionary dictionaryWithObject:(id) myRedColor forKey:(id)kCTForegroundColorAttributeName]; // Setting the foreground attribute value the color reference created.

[myAttrStr addAttributes:newAttribute range:NSMakeRange(0, [myAttrStr length])]; // Setting the attribute dictionary to the NSAttributedString object

Let us say you have a sprite named “sprite1″ and you need to find out whether any action is running on it or not by

int actionsCount = [sprite1 numberOfRunningActions];

Each CCNode and its descendants has the ability to get a position relative to the scene:

CGPoint worldCoord = [mySprite convertToWorldSpace: mySprite.position];

This world Coordinate will be relative to the scene as opposed to the parent node!

b2Vec2 vel = body->GetLinearVelocity();

Use ‘CCEaseIn’ action in cocos2d for obtaining acceleration in the beginning.

// acceleration at the beginning
id action = [CCMoveTo actionWithDuration:2 position:ccp(100,100)];
id ease = [CCEaseIn actionWithAction:action rate:2];
[sprite runAction: ease];

CCLayer* subview = //initialize
[subview setPosition:ccp(X,Y)];

[self addChild:subview];

[NSObject cancelPreviousPerformRequestsWithTarget:self];

The above code will cancel all selectors called with target “self”

After you’ve successfully unlocked your iphone, you can follow these simple instructions to take a backup of the activation ticket:

Step 1: Launch Cydia

Step 2: Install iFile (skip this step if you have already installed iFile)

• Tap on the Search tab
• Search for iFile
• Tap on iFile from the search results
• Buy iFile as it is a paid jailbreak app
• After you have purchased iFile, tap on the Install button in the top right corner.
• Then tap on the Confirm button
• Tap on the Return to Cydia button when prompted

Note: If you don’t want to use iFile, you can always SSH into the folder on your iPhone and copy the contents to your computer.

Step 3: After iFile is successfully installed, press on the Home button and launch iFile from the iPhone’s Home screen.

Step 4: You need to navigate to the Library folder:

• Tap on /var (top left corner)
• Then tap on the root folder from the list
• Then tap on the Library folder

Step 5:  Here the objective is to create the zip file of the Lockdown folder as it contains the activation ticket:

• Tap on the Edit button in the top right corner
• Then tap on the Lockdown folder to select it
• Then tap on the zip icon (second icon from the left at the bottom)
• Here you will be prompted to select the name of the archive
• You can either leave it as Lockdown or name the archive and tap on the Create button
• iFile will create the archive file in the Library Folder

Step 6: Email the archive file that you have just created to yourself.

• Tap on the archive file to select it.
• Then tap on the Mail icon (third icon from the right at the bottom)
• Enter your email address, the appropriate subject and then tap the Send button.

• Scene management (workflow)
• Transitions between scenes
• Sprites and Sprite Sheets
• Effects: Lens, Ripple, Waves, Liquid, etc.
• Actions (behaviours):
  • Transformation Actions: Move, Rotate, Scale, Fade, Tint, etc.
  • Composable actions: Sequence, Spawn, Repeat, Reverse
  • Ease Actions: Exp, Sin, Cubic, Elastic, etc.
  • Misc actions: CallFunc, OrbitCamera, Follow, Tween
• Basic menus and buttons
• Integrated with physics engines: Box2d and Chipmunk
• Particle system
• Fonts:
  • Fast font rendering using Fixed and Variable width fonts
  • Support for .ttf fonts
• Texture Atlas support
• Tile Map support: Orthogonal, Isometric and Hexagonal
• Parallax scrolling
• Motion Streak
• Render To Texture
• High Score server (cocosLive library)
• Touch/Accelerometer on iOS
• Touch/Mouse/Keyboard on Mac
• Portrait and Landscape mode on iOS
• Sound Engine support (CocosDenshion library) based on OpenAL
• Integrated Pause/Resume
• Integrated Slow motion/Fast forward
• Fast textures: PVR compressed and uncompressed textures
• Point based: iPhone4 + RetinaDisplay mode compatible
• Language: objective-c
• Open Source: Compatible with open and closed source projects
• OpenGL ES 1.1 (iOS) / OpenGL 1.5 based (Mac)

External/3rd party libraries used by cocos2d or any other project.

• Chipmunk/: physics library
• Box2d/: physics library
• TouchJSON/: JSON parser
• Tremor/: OGG audio decoder