self.userInteractionEnabled = FALSE not activating quick enough.. any work around? - ios

Question

I have a collision handler detecting for a game over situation, however when the rocket lands (else if), the labels become visible no problems, but there is a second where the touch down even still registers, then the rocket takes off again, then the touch disables. Is there any obvious thing I'm doing wrong?
-(BOOL)ccPhysicsCollisionPreSolve:(CCPhysicsCollisionPair *)pair rocket:(CCNode *)nodeA landingPad:(CCNode *)nodeB{
//if travelling too fast on landing..
if (_rocket.physicsBody.velocity.y < maximumVerticalVelocity){
_crashNotice.visible = TRUE;
crashed = TRUE;
[_rocket removeFromParentAndCleanup:YES];
self.userInteractionEnabled = FALSE;
}else if (_rocket.physicsBody.velocity.y > 0.01){
self.userInteractionEnabled = FALSE;
//show game won state
_scoreLabel.visible = FALSE;
_showScoreLabel.visible = TRUE;
}return TRUE;
}

Answer 1

Instead of enable and disable touch, handle through bool value.
In class.h file declare this
bool mAllowTouch;
In Init/onEnter :
-(void)onEnter
{
[super onEnter];
mAllowTouch = true;
self.userInteractionEnabled = true;
}
In your function
-(BOOL)ccPhysicsCollisionPreSolve
{
if(YOUR_CONDITION_TO_STOP_TOUCH)
{
mAllowTouch = false;
}
else
{
mAllowTouch = true;
}
}
In touch function, use mAllowTouch to process your touch.
-(void) touchBegan:(UITouch *)touch withEvent:(UIEvent *)event
{
if(mAllowTouch)
{
//handle touch here.
}
}