tried to write a collision with the moving "floats" but did not succeed. maybe wrong place of the "collision" code? thanx 4 help!

// // FruitsView.m //

import "FruitsView.h"

import "Constants.h"

import "Utilities.h"

define kFloat1Speed 0.15

define kFloat2Speed 0.3

define kFloat3Speed 0.2

@interface FruitsView (Private) - (void) stopTimer; @end

@implementation FruitsView @synthesize apple, float1, float2, float3, posFloat1, posFloat2, posFloat3;

-(void)onTimer {

float1.center = CGPointMake(float1.center.x+posFloat1.x,float1.cen ter.y+posFloat1.y);

if(float1.center.x > 380 || float1.center.x < -60) posFloat1.x = -posFloat1.x; if(float1.center.y > 100 || float1.center.y < -40) posFloat1.y = -posFloat1.y;

float2.center = CGPointMake(float2.center.x+posFloat2.x,float2.cen ter.y+posFloat2.y);

if(float2.center.x > 380 || float2.center.x < -50) posFloat2.x = -posFloat2.x; if(float2.center.y > 150 || float2.center.y < -30) posFloat2.y = -posFloat2.y;

float3.center = CGPointMake(float3.center.x+posFloat3.x,float3.cen ter.y+posFloat3.y);

if(float3.center.x > 380 || float3.center.x < -70) posFloat3.x = -posFloat3.x; if(float3.center.y > 100 || float3.center.y < -20) posFloat3.y = -posFloat3.y;

if(CGRectIntersectsRect(apple.frame,float1.frame)) { if(apple.center.y > float1.center.y) { posApple.y = -posApple.y; } }

if(CGRectIntersectsRect(apple.frame,float2.frame)) { if(apple.center.y > float2.center.y) { posFloat2.y = -posFloat2.y; } }

if(CGRectIntersectsRect(apple.frame,float3.frame)) { if(apple.center.y > float3.center.y) { posFloat3.y = -posFloat3.y; } }
}

pragma mark Initialisation/destruction

• (void)awakeFromNib {

[NSTimer scheduledTimerWithTimeInterval:0.0001 target:self selector:@selector(onTimer) userInfo:nil repeats:YES];

posFloat1 = CGPointMake(kFloat1Speed, 0); posFloat2 = CGPointMake(kFloat2Speed, 0); posFloat3 = CGPointMake(kFloat3Speed, 0);

timer = nil; modeLock = lockNotYetChosen;

defaultSize = self.bounds.size.width;

modal = self.tag;

[[UIAccelerometer sharedAccelerometer] setDelegate:self];

[UIView beginAnimations:nil context:nil];
[UIView setAnimationRepeatCount:1]; eadbea.transform = CGAffineTransformMakeScale(0.5,0.5); [UIView commitAnimations];

[UIView beginAnimations:nil context:nil];
[UIView setAnimationRepeatCount:1]; apple.transform = CGAffineTransformMakeScale(0.5,0.5); [UIView commitAnimations]; }

pragma mark Background animation processing

• (void) startTimer { if (!timer) { timer = [[NSTimer scheduledTimerWithTimeInterval:1.0/60.0 target:self selector:@selector(timerTick:) userInfo:nil repeats:YES] retain]; } }

• (void) stopTimer { [timer invalidate]; [timer release]; timer = nil; }

• (void) check:(CGPoint*)position delta:(CGSize*)delta halfSize:(CGSize)halfSize forBouncingAgainst:(CGSize)containerSize {

if ((position->x - halfSize.width)<0) { delta->width = fabsf(delta->width)*BOUNCE_DAMPING; position->x = halfSize.width; } if ((position->x + halfSize.width)>containerSize.width) { delta->width = fabsf(delta->width)*-BOUNCE_DAMPING; position->x = containerSize.width - halfSize.width; } if ((position->y - halfSize.height)<0) { delta->height = fabsf(delta->height)*BOUNCE_DAMPING; position->y = halfSize.height; } if ((position->y + halfSize.height)>containerSize.height) { delta->height = fabsf(delta->height)*-BOUNCE_DAMPING; position->y = containerSize.height - halfSize.height; } }

• (void) timerTick: (NSTimer*)timer {

dragDelta = CGSizeScale(dragDelta, INERTIAL_DAMPING);

if ((fabsf(dragDelta.width)>DELTA_ZERO_THRESHOLD) || (fabsf(dragDelta.height)>DELTA_ZERO_THRESHOLD)) { CGPoint ctr = CGPointApplyDelta(self.center, dragDelta);

CGSize halfSize = CGSizeMake(self.bounds.size.width/4, self.bounds.size.height/4); [self check:&ctr delta:&dragDelta halfSize:halfSize forBouncingAgainst:self.superview.bounds.size];

self.center = ctr; } else { [self stopTimer]; } }

pragma mark Input Handling

• (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent )event { NSSet allTouches = [event touchesForView:self]; if ([allTouches count]==1) { if (modeLock>lockNotYetChosen) return;

UITouch* anyTouch = [touches anyObject]; lastMove = anyTouch.timestamp; CGPoint now = [anyTouch locationInView: self.superview]; CGPoint then = [anyTouch previousLocationInView: self.superview]; dragDelta = CGPointDelta(now, then);

self.center = CGPointApplyDelta(self.center, dragDelta); [self stopTimer]; } }

• (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

NSSet* allTouches = [event touchesForView:self]; if ([touches count]==[allTouches count]) { modeLock = lockNotYetChosen;

if ((event.timestamp - lastMove) > MOVEMENT_PAUSE_THRESHOLD) return; if ((fabsf(dragDelta.width)>INERTIA_THRESHOLD) || (fabsf(dragDelta.height)>INERTIA_THRESHOLD)) { [self startTimer]; } } }

• (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event { modeLock = lockNotYetChosen; [self stopTimer]; }

• (void)dealloc { [float1 release]; [float2 release]; [float3 release]; [apple release]; [bear_head release]; [self stopTimer]; [super dealloc]; }

@end