- (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{

UITouch *touch = [touches anyObject];
CGPoint start = [touch locationInView: [touch view]];
start = [[CCDirector sharedDirector] convertToGL: start];
CGPoint end = [touch previousLocationInView:[touch view]];
end = [[CCDirector sharedDirector] convertToGL:end];

// begin drawing to the render texture
[target begin]; // CCRenderTexture (declared in .h)
b2BodyDef drawingBodyDef;

drawingBodyDef.userData = brush;//CCSprite

// Call the body factory which allocates memory for the ground body
// from a pool and creates the ground box shape (also from a pool).
// The body is also added to the world.

drawingBody = _world->CreateBody(&drawingBodyDef);//b2Body
b2FixtureDef drawingboxShapeDef;
b2PolygonShape drawingBox;

float distance = ccpDistance(start, end);
if (distance > 1)
{
fallingFlag=TRUE;
int d = (int)distance;
for (int i = 0; i CreateFixture(&drawingboxShapeDef);
}
}
[target end];
}

@Stornu2: Lol thanks for the kind words!

@R. Mantero: Nice catch, tutorial updated with the fix!

@Stephen: You can move the entire tilemap just by setting its position. To understand how this works, I recommend re-reading the section on moving the tilemap in the first part of the tutorial:

http://www.raywenderlich.com/1163/how-to-make-a-tile-based-game-with-cocos2d

Also the idea is discussed again here as well:

http://www.raywenderlich.com/2343/how-to-drag-and-drop-sprites-with-cocos2d

Hope this helps!

I think there is a little typo in the section called “Gratuituous Sound Effects and Music” IMHO. Where it says “Simply make the following changes to HelloWorldScene.h:” should be “HelloWorldScene.m”

You made me enter The Matrix, I feel like Neo!

Sorry for the stupid question the other day and thanks for the reply, I almost went crazy looking at google an answer for the “_” in front of the variables, I thought it was a way to declare a string or an array or something.

Good luck with the book.

Greetings