Emitting UIImageViews

[Psevertson]

So I am trying to create a game. The most similar one I could find on the app store is Tasty Planet.
So mostly what I have so far is an NSTimer that starts this every 3 seconds:

image1 = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"image.png"]];
[self.view addSubview:image1];
image1.frame = CGRectMake(320, (random() % 480), 12, 12);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:8];
image1.transform = CGAffineTransformMakeTranslation (-370, (random() % 480) - 240 ); image1.alpha = 1.0; [UIView commitAnimations];

it randomly emits images from right to left. I also have, image2, which is controlled by tilting.
I want to be able to tell when they cross.
I've tried using:
if (CGRectIntersectsRect(image2.frame, image1.frame)){
image1.hidden = YES;
image2.transform = CGAffineTransformScale(image2.transform, 1.2 , 1.2);
}else {
}

But it wont work.
I think the problem is because the timer creates a whole new image.
Is the a better way to do what I am trying to do so far.

[Shota]

Using "animation block", the object is looks like moving,
but the frame's value isn't change (frame.center = end animating point)

I think, it may become reason.

so, if you want to catch "intersect", coding without animation block(= [beginAnimation:] to [commitAnimation]).

[Psevertson]

Originally Posted by Shota

Using "animation block", the object is looks like moving,
but the frame's value isn't change (frame.center = end animating point)

I think, it may become reason.

so, if you want to catch "intersect", coding without animation block(= [beginAnimation:] to [commitAnimation]).

So how would I change the code? I dont get where it goes?

[Shota]

Can open this attached file?

I think, you may want to do like this (if it's wrong, so sorry).
Explaining about this way in English, is difficult for me, and code become too long. but did like this, can move obj without animation block.

When intersect, small view is changed background color, rewrite this part.
Use UIView class, rewrite your need class.

[Psevertson]

Originally Posted by Shota

Can open this attached file?

I think, you may want to do like this (if it's wrong, so sorry).
Explaining about this way in English, is difficult for me, and code become too long. but did like this, can move obj without animation block.

When intersect, small view is changed background color, rewrite this part.
Use UIView class, rewrite your need class.

Thank you so much for doing all this. Is there anyway to make it be an image, instead of squares?
Thanks!

[Shota]

sure, UIView's "Ball"class need to rewrite UIImageView class.

<.h part>

@interface Ball : UIImageView

<.m part>

1: "initWithFrame:" method,

- (id)initWithFrameCGRect)rect {

self = [super initWithFrame:rect];

self.image = [UIImage imageNamed:@"yourImage.png"]; (jpg is also OK)

}

>>Add "self.image" in code.


2: for() in "moveObj:"method.

for (UIImageView *obj in self.superview.subviews)

>>UIView rewrite to UIImageView.


*: optionally, if you need,(on initWithFrame

self.contentMode = UIViewContentModeScaleToFill;

[Psevertson]

Originally Posted by Shota

sure, UIView's "Ball"class need to rewrite UIImageView class.

<.h part>

@interface Ball : UIImageView

<.m part>

1: "initWithFrame:" method,

- (id)initWithFrameCGRect)rect {

self = [super initWithFrame:rect];

self.image = [UIImage imageNamed:@"yourImage.png"]; (jpg is also OK)

}

>>Add "self.image" in code.


2: for() in "moveObj:"method.

for (UIImageView *obj in self.superview.subviews)

>>UIView rewrite to UIImageView.


*: optionally, if you need,(on initWithFrame

self.contentMode = UIViewContentModeScaleToFill;

Once again thanks for doing all this. One last thing. I need to check if it intersects with an image that is in my other view.
I dont know how to do this because it is undeclared.

[Shota]

OK, sure. I'm glad that I could help you.

if your view is UIImageView class, this loops is not need to change.
But if your view is other class (UILabel, UIButton, UIView...etc), UIImageView should rewrite to UIView (or id).

<Ball.m>

for(UIImageView *obj in self.superview.subview) {
if(CGRectIntersectsRect(self.frame, obj.frame) && !CGRectEqualToRect(self.frame, obj.frame)) {
// Insert code here, Intersection.
}
}

this for() loop means "reference all view".

have to choose view in your way.


for example (write in "insert code here, Intersection")

1:
if(obj.frame.size.x != 12.0) {
// your view's size is not 12.0.
}

2:
if([obj class] != [UIImageView class]) {
// your view's class is not UIImageView. (same mean "isKindofClass:")
}

3:
if(obj.image == [UIImage imageNamed:@"yourImage.png"]) {
// choose by image name.
}

4:
if([obj respondToSelector(methodOfYourClass)]) {
// if the instance can respond your method.
}

you should think which way is better, or other way is more better.

[Psevertson]

Originally Posted by Shota

OK, sure. I'm glad that I could help you.

if your view is UIImageView class, this loops is not need to change.
But if your view is other class (UILabel, UIButton, UIView...etc), UIImageView should rewrite to UIView (or id).

<Ball.m>

for(UIImageView *obj in self.superview.subview) {
if(CGRectIntersectsRect(self.frame, obj.frame) && !CGRectEqualToRect(self.frame, obj.frame)) {
// Insert code here, Intersection.
}
}

this for() loop means "reference all view".

have to choose view in your way.


for example (write in "insert code here, Intersection")

1:
if(obj.frame.size.x != 12.0) {
// your view's size is not 12.0.
}

2:
if([obj class] != [UIImageView class]) {
// your view's class is not UIImageView. (same mean "isKindofClass:")
}

3:
if(obj.image == [UIImage imageNamed:@"yourImage.png"]) {
// choose by image name.
}

4:
if([obj respondToSelector(methodOfYourClass)]) {
// if the instance can respond your method.
}

you should think which way is better, or other way is more better.

Ok, I've been working with this. Now I need to change the view after 3 intersections.
I've tried using:
[self.delegate gameViewControllerDidFinish:self];
but every time it ends up crashing. I have no idea why.

[Shota]

Originally Posted by Psevertson

Ok, I've been working with this. Now I need to change the view after 3 intersections.
I've tried using:
[self.delegate gameViewControllerDidFinish:self];
but every time it ends up crashing. I have no idea why.

...gameViewControllerDidFinish & delegate? No build failed?

Do you get this error message?

"request for member 'delegate' in something not a structure or union"


if you don't get it, check to use these method.

NSLog(@"%@",self.delegate);

if([self.delegate respondsToSelector:@selector(gameViewControllerDid Finish]) {
[self.delegate gameViewControllerDidFinish:self];
}

If your method is valid return YES value, return NO value = no method or no link to call method.

/////////////////////

You should set delegate, before call delegate's method.

1: set delegate.

YourView *obj = [YourView alloc] initWithFrame(rect)];

[obj setDelegate:self]; (viewController: when make instance);

////top of YourView.m class/////////////////////

- (void)setDelegate: (id)_delegate {

delegate = _delegate
//delegate is member variable.
}

- (id)delegate {
return delegate;
}

After you wrote that, delegate is valid.