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PODrag and drop for CCSprite in xcode
 

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    <p>In my application i have used CCSprites. They are defines in the proper format and ccTouchesBegan functions properly. Then I added the codes for drag and drop. they are</p> <pre><code>- (void)selectSpriteForTouch:(CGPoint)touchLocation { CCSprite * newSprite = nil; NSMutableArray *movableSprites=[[NSMutableArray alloc] initWithObjects:Tocken1,Tocken2,Tocken3]; for (CCSprite *sprite in movableSprites) { if (CGRectContainsPoint(sprite.boundingBox, touchLocation)) { newSprite = sprite; break; } } if (newSprite != selSprite) { [selSprite stopAllActions]; [selSprite runAction:[CCRotateTo actionWithDuration:0.1 angle:0]]; CCRotateTo * rotLeft = [CCRotateBy actionWithDuration:0.1 angle:-4.0]; CCRotateTo * rotCenter = [CCRotateBy actionWithDuration:0.1 angle:0.0]; CCRotateTo * rotRight = [CCRotateBy actionWithDuration:0.1 angle:4.0]; CCSequence * rotSeq = [CCSequence actions:rotLeft, rotCenter, rotRight, rotCenter, nil]; [newSprite runAction:[CCRepeatForever actionWithAction:rotSeq]]; selSprite = newSprite; } } - (CGPoint)boundLayerPos:(CGPoint)newPos { CGSize winSize = [CCDirector sharedDirector].winSize; CGPoint retval = newPos; retval.x = MIN(retval.x, 0); retval.x = MAX(retval.x, -background.contentSize.width+winSize.width); retval.y = self.position.y; return retval; } - (void)panForTranslation:(CGPoint)translation { if (Tocken1) { CGPoint newPos = ccpAdd(Tocken1.position, translation); Tocken1.position = newPos; } else { CGPoint newPos = ccpAdd(self.position, translation); self.position = [self boundLayerPos:newPos]; } } - (void)ccTouchMoved:(UITouch *)touch withEvent:(UIEvent *)event { CGPoint touchLocation = [self convertTouchToNodeSpace:touch]; CGPoint oldTouchLocation = [touch previousLocationInView:touch.view]; oldTouchLocation = [[CCDirector sharedDirector] convertToGL:oldTouchLocation]; oldTouchLocation = [self convertToNodeSpace:oldTouchLocation]; CGPoint translation = ccpSub(touchLocation, oldTouchLocation); [self panForTranslation:translation]; } </code></pre> <p>now when i click on the sprite the program gets terminated with the following error code.</p> <p>2012-02-23 10:12:47.377 whoonu[3574:207] <em>*</em> Assertion failure in -[WhooseitView ccTouchBegan:withEvent:], /Users/sandeepkuttiyatur/Documents/Dropbox/ibiz_completed_apps/WhoonuV9/CatRace/libs/cocos2d/CCLayer.m:259</p> <p>2012-02-23 10:12:47.378 whoonu[3574:207] <em>*</em> Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Layer#ccTouchBegan override me'</p> <pre><code>*** Call stack at first throw: ( 0 CoreFoundation 0x02c23b99 __exceptionPreprocess + 185 1 libobjc.A.dylib 0x02d7340e objc_exception_throw + 47 2 CoreFoundation 0x02bdc238 +[NSException raise:format:arguments:] + 136 3 Foundation 0x02674e37 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 116 4 whoonu 0x00033873 -[CCLayer ccTouchBegan:withEvent:] + 179 5 whoonu 0x0008efa7 -[CCTouchDispatcher touches:withEvent:withTouchType:] + 1255 6 whoonu 0x0008fb6f -[CCTouchDispatcher touchesBegan:withEvent:] + 111 7 whoonu 0x00091a21 -[EAGLView touchesBegan:withEvent:] + 113 8 UIKit 0x007db324 -[UIWindow _sendTouchesForEvent:] + 395 9 UIKit 0x007bccb4 -[UIApplication sendEvent:] + 447 10 UIKit 0x007c19bf _UIApplicationHandleEvent + 7672 11 GraphicsServices 0x03236822 PurpleEventCallback + 1550 12 CoreFoundation 0x02c04ff4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52 13 CoreFoundation 0x02b65807 __CFRunLoopDoSource1 + 215 14 CoreFoundation 0x02b62a93 __CFRunLoopRun + 979 15 CoreFoundation 0x02b62350 CFRunLoopRunSpecific + 208 16 CoreFoundation 0x02b62271 CFRunLoopRunInMode + 97 17 GraphicsServices 0x0323500c GSEventRunModal + 217 18 GraphicsServices 0x032350d1 GSEventRun + 115 19 UIKit 0x007c5af2 UIApplicationMain + 1160 20 whoonu 0x000bceaf main + 127 21 whoonu 0x00001ed5 start + 53 22 ??? 0x00000001 0x0 + 1 </code></pre> <p>) terminate called after throwing an instance of 'NSException' </p>
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