I have a UIImageView being moved with a timer towards the edge of the view but it carries on and I don't know how to stop the UIImageView as soon as it hits he edge! Please Help?
This is what I have tried so far in my method!
Code:
-(void)moveBack {
CGPoint manCenter = man.center;
if (manCenter.x > 480) {
manCenter.x = 480;
}
man.center = CGPointMake(man.center.x +5, man.center.y);
[self ifCollided];
}
When you do your man.center.x + 5 it will be out of the UIImage frame. When you set this to 480 it should be fitting.
-(void)moveBack {
man.center = CGPointMake(man.center.x + 5, man.center.y);
[self ifCollided];
if (man.center.x > 480) {
man.center = CGPointMake(480 , man.center.y);
}
}
-(void)moveBack {
man.center = CGPointMake(man.center.x + 5, man.center.y);
[self ifCollided];
if (man.center.x > 480) {
man.center = CGPointMake(480 , man.center.y);
}
}
Related
I want to set 5 buttons on uiview at random position. Buttons need maintain some spacing to each other. I mean buttons should not overlap to each other.
All buttons set on UIView come from corners with rotation animation.
btn1.transform = CGAffineTransformMakeRotation(40);
btn2.transform = CGAffineTransformMakeRotation(60);
btn3.transform = CGAffineTransformMakeRotation(90);
btn4.transform = CGAffineTransformMakeRotation(30);
btn5.transform = CGAffineTransformMakeRotation(20);
I Can rotate buttons using above code but can you pls. help me for set buttons on random position with out overlapping by each other.
If points are fix than I can set buttons with animation by this code but I want random position of buttons.
[AnimationView moveBubble:CGPointMake(18, 142) duration:1 : btn1];
[AnimationView moveBubble:CGPointMake(118, 142) duration:1 : btn2];
[AnimationView moveBubble:CGPointMake(193, 142) duration:1 : btn3];
[AnimationView moveBubble:CGPointMake(18, 216) duration:1 : btn4];
Thanks in advance.
1st, add buttons to an NSArray, only to make things easier:
NSArray *buttonArray = #[btn1,btn2,btn3,btn4,btn5];
Now, this code tries to Arrange them at random positions.
int xTemp, yTemp;
for (int i = 0; i < 5; i++) {
while (YES) {
xTemp = arc4random_uniform(view.frame.size.width - [buttonArray[i] frame].size.width);
yTemp = arc4random_uniform(view.frame.size.height - [buttonArray[i] frame].size.height);
if (![self positionx:xTemp y:yTemp intersectsAnyButtonTillIndex:i inButtonArray:buttonArray]) {
[AnimationView moveBubble:CGPointMake(xTemp, yTemp) duration:1 : buttonArray[i]];
break;
}
}
}
Implement this function somewhere too:
- (BOOL) positionx:(int)xTemp y:(int)yTemp intersectsAnyButtonTillIndex:(int)index inButtonArray:(NSArray *)buttonArray {
//Again please change the < to <= , I'm sorry, doing too many things at once.
for (int i = 0; i <= index; i++) {
CGRect frame = [buttonArray[i] frame];
//EDIT : In the logic earlier, I had wrongly done a minus where I should have done a plus.
if ((xTemp > frame.origin.x && xTemp < (frame.size.width + frame.origin.x)) && (yTemp > frame.origin.y && yTemp < (frame.size.height + frame.origin.y))) return YES;
}
return NO;
OK this is a workign soln., I hope, just added something to WolfLink's answer. Check This.
for (UIButton *button in buttonArray) {
button.frame = CGRectMake(arc4random_uniform(view.frame.size.width - button.frame.size.width), arc4random_uniform(view.frame.size.height - button.frame.size.height), button.frame.size.width, button.frame.size.height);
while ([self button:button intersectsButtonInArray:buttonArray]) {
button.frame = CGRectMake(arc4random_uniform(view.frame.size.width - button.frame.size.width), arc4random_uniform(view.frame.size.height - button.frame.size.height), button.frame.size.width, button.frame.size.height);
}
//another function
-(BOOL)button:(UIButton *)button intersectsButtonInArray:(NSArray *)array {
for (UIButton *testButton in array) {
if (CGRectIntersectsRect(button.frame, testButton.frame) && ![button isEqual:testButton]) {
return YES;
}
}
return NO;
}
Based on spiritofmysoul.wordpress's code:
//in the function where you randomize the buttons
NSArray *buttonArray = #[btn1,btn2,btn3,btn4,btn5];
for (UIButton *button in buttonArray) {
float widthOffset = self.frame.size.width-button.frame.size.width;
float heightOffset = self.frame.size.height-button.frame.size.height;
button.frame = CGRectMake(arc4random()%widthOffset, arc4random()%heightOffset, button.frame.size.width, button.frame.size.height);
while ([self button:button intersectsButtonInArray:buttonArray]) {
button.frame = CGRectMake(arc4random(), arc4random(), button.frame.size.width, button.frame.size.height);
}
//another function
-(BOOL)button:(UIButton *)button intersectsButtonInArray:(NSArray *)array {
for (UIButton *testButton in array) {
if (CGRectIntersectsRect(button.frame, testButton.frame) && ![button isEqual:testButton]) {
return YES;
}
}
return NO;
}
Beware: This will work well for small amounts of buttons on a large space but as you add buttons and you run out of space, this method will take much longer to run. If there is not enough space for all the buttons, it will become an infinite loop.
i have this code to show animation of a image
-(void) blink:(ccTime) delta {
animateblink ++; //adds 1 every frame
if (animateblink <= 6 ) { //if we included frames to show for breaking and the current frame is less than the max number of frames to play
if (animateblink < 6) {
[sprite setTexture:[[CCSprite spriteWithFile:[NSString stringWithFormat:#"%#_blinkk00%i.png", baseImageName,animateblink]] texture]];
[self unschedule:_cmd];
[self schedule:#selector(openEyes:) interval:0.1f];
[self schedule:#selector(moveSprite:) interval:0.1f];
}
}
}
i have 6 images of animating like
dragonimage_blinkk001,dragonimage_blinkk002,dragonimage_blinkk003,dragonimage_blinkk004,dragonimage_blinkk005,dragonimage_blinkk006 like that
i put two methods,
1: for animation time
2: for movement of the image
the code is
-(void) openEyes:(ccTime) delta {
[sprite setTexture:[[CCSprite spriteWithFile:[NSString stringWithFormat:#"%#.png", baseImageName]] texture]];
[self unschedule:_cmd];
int blinkInterval = (arc4random() % 6) + 1; // range 3 to 8
[self schedule:#selector(blink:) interval:blinkInterval];
}
-(void)moveSprite:(ccTime)delta
{
movementCounter ++;
if (movementCounter == 1000) {
[self unschedule:_cmd];
}
else
{
spriteimagename.position = ccp(spriteimagename.position.x+10,spriteimagename.position.y);
}
}
but on the first method the animation time is not correct,there is a lot of delay of animation,i just want to show animation of the images randomly and fast,its a dragon flying animation.
my sec on method is not at all working,i didn't get any movement of that image.
i hope you understand my issue.how to solve the above two method issues.
Thanks in advance.
Quick solution is to add frameIndex member in cocos2d CCSpriteFrame class. i don't know is that allowed to change. But it works fine.
#interface CCSpriteFrame : NSObject <NSCopying>
{
int frameIndex;
....
}
//Here in code initialize frames with unique index
CCAnimation* animation;
NSMutableArray *animFrames2 = [NSMutableArray array];
for( int i=1;i<=15;i++)
{
CCSpriteFrame *frame = [cache spriteFrameByName:[NSString stringWithFormat:#"ActerSmash_%d.png",i]];
frame.frameIndex = (int)i;
[animFrames2 addObject:frame];
}
animation = [CCAnimation animationWithFrames:animFrames2];
CCAnimate *action = [CCAnimate actionWithDuration:ACTER_SMASH_SPEED animation:animation restoreOriginalFrame:YES];
action.tag = kTagAnimationSmashAnim ;
mActer.AnimSmash = action;
//Checking frame Index
CCAnimate *anim = mActer.AnimSmash ;
for(CCSpriteFrame *frame in anim.animation.frames)
{
if([mActer isFrameDisplayed:frame] ) )
{
if(frame.frameIndex == 5 )
{
//Do something..
}
}
}
I am trying to set the image of the face down card to the image that the value of the card is. The method in KCCard, image:, returns the image of the card.
- (UIImage *)image:(BOOL)yesOrNo
{
if (!yesOrNo) {
return [UIImage imageNamed:#"back-blue-150-3.png"];
} else {
return [UIImage imageNamed:[NSString stringWithFormat:#"%#-%#-150", [self suitAsString], [self valueAsString]]];
}
}
The code I am using in the deal method is as follows.
int lastDealerX = 437;
//int lastDealerY = 49;
int lastDealerTag = 0;
for (KCCard *aCard in dealerHand) {
if (lastDealerTag == 0) {
KCCardView *cardView = [[KCCardView alloc] initWithFrame:CGRectMake(lastDealerX, 49, 150, 215)];
cardView.backgroundColor = [UIColor blackColor];
cardView.image = [aCard image:NO];
cardView.tag = lastDealerTag;
[self.view addSubview:cardView];
lastDealerTag = lastDealerTag + 1;
lastDealerX = lastDealerX + 42;
} else {
KCCardView *cardView = [[KCCardView alloc] initWithFrame:CGRectMake(lastDealerX, 49, 150, 215)];
cardView.backgroundColor = [UIColor blackColor];
cardView.image = [aCard image:YES];
cardView.tag = lastDealerTag;
[self.view addSubview:cardView];
lastDealerTag = lastDealerTag + 1;
lastDealerX = lastDealerX + 42;
}
}
The KCCardView with tag 0 shows the card face down and the other card is face up. The problem is that when I want the face down card to show, it won't. Here is the show code.
- (IBAction)showCard:(id)sender {
for (UIView *view in self.view.subviews) {
for (KCCard *aCard in dealerHand) {
KCCardView *cardView = (KCCardView *)view;
if (cardView.tag == 0) {
cardView.image = [[dealerHand objectAtIndex:0] image:YES];
}
}
}
}
KCCard is an NSObject, KCCardView is a UIImageView, and dealerHand is an NSMutableArray.
Here is a video showing the build and run: http://aleckazarian.com/misc/Blackjack.mov
Here is the XCode project: http://aleckazarian.com/misc/Blackjack.zip
If you look at the connection in the nib you'll notice that it is connected to
showCard
this is a completely different method to
showCard:
In your class you implement - (IBAction)showCard:(id)sender; therefore you need to break the connection in Interface builder and reconnect it.
Update
The second time I ran your program I got
-[UIRoundedRectButton setImage:]: unrecognized selector sent to instance 0x68612e0
This looks like it's because you are iterating over the view's subviews and checking if 0 == tag. 0 is the default value for tag so essentially mostly every view will respond true unless you have explicitly set the tags to something else. The problem code it
for (UIView *view in self.view.subviews) {
for (KCCard *aCard in dealerHand) {
KCCardView *cardView = (KCCardView *)view;
if (cardView.tag == 0) { // <------- This is the bad check
cardView.image = [((KCCard *)[dealerHand objectAtIndex:0]) image:YES];
}
}
}
To fix this either do one of these (they are in order of my preference - I wouldn't go near 3 or 4 in this case):
Keep a reference to the cardView's in an array
Give the cardView's a non zero tag when they are created
Use respondsToSelector:
Test for the class `[cardView isKindOf:[UIButton class]];
The compiler does not know, what kind of object [dealerHand objectAtIndex:0] is, thus it cannot respond to image:. Try this:
cardView.image = [((KCCard *)[dealerHand objectAtIndex:0]) image:YES];
Ok, so I have these powerups that I want to slow/speed up the movement of the other objects in the game for a few seconds.
I have an array of objects that I have a variable called spawnInterval that gets faster and faster as the game progresses, making the ame get harder after a few mins.
But I can't really grasp how to make it so the character in the game will react differently to different objects as in when the fastPowerUp is hit by the character sprite, the spawn interval doesn't change.
And vice versa with the slowPowerUp.
the code I have at the moment is this in a move sequence method that gets called in an update method:
-
(void) updateObstacles:(ccTime)delta{
for (int i = 0; i < 20; i++) {
//int randomizer = CCRANDOM_0_1() * [obstacles count];
//NSLog(#"randomizer: %i",randomizer);
CCSprite* randomObject = [obstacles randomObject];
currentObject = [obstacles indexOfObject:randomObject];
if ([randomObject numberOfRunningActions] == 0) {
[self runObstacleMoveSequence:randomObject withTimer:delta];
break;
}
}
}
-(void) runObstacleMoveSequence:(CCSprite *)object withTimer:(ccTime)delta{
static int time;
//Slowly increase object speed
numObstaclesMoved++;
if (!slowPowerUp && !fastPowerUp) {
time += delta;
if (numObstaclesMoved % 17 == 0 && obstacleMoveDuration > 2.0f) {
obstacleMoveDuration -= 0.2f;
if (spawnInterval > 0.1f) {
[self unschedule:#selector(updateObstacles:)];
[self schedule:#selector(updateObstacles:) interval:spawnInterval];
spawnInterval-=0.1f;
NSLog(#"interval: %f",spawnInterval);
}
}
}else if (slowPowerUp && !fastPowerUp) {
if (numObstaclesMoved % 17 == 0 && obstacleMoveDuration > 2.0f) {
obstacleMoveDuration += 3.0f;
if (spawnInterval > 0.1f) {
[self unschedule:#selector(updateObstacles:)];
[self schedule:#selector(updateObstacles:) interval:spawnInterval];
spawnInterval-=0.1f;
NSLog(#"interval: %f",spawnInterval);
if (time >= (delta + 3)) {
slowPowerUp = NO;
obstacleMoveDuration -= 3.0f;
}
}
}
}else if (!slowPowerUp && fastPowerUp) {
if (numObstaclesMoved % 17 == 0 && obstacleMoveDuration > 2.0f) {
obstacleMoveDuration -= 3.0f;
if (spawnInterval > 0.1f) {
[self unschedule:#selector(updateObstacles:)];
[self schedule:#selector(updateObstacles:) interval:spawnInterval];
spawnInterval-=0.1f;
NSLog(#"interval: %f",spawnInterval);
if (time >= (delta + 3)) {
fastPowerUp = NO;
obstacleMoveDuration += 3.0f;
}
}
}
}
CGSize screenSize = [[CCDirector sharedDirector]winSize];
CGPoint aboveScreenPosition = CGPointMake(object.position.x, screenSize.height - object.position.y);
int rotations = (CCRANDOM_0_1()*3) * 360;
float duration = (CCRANDOM_0_1()*5.0f) + 8.0f;
CCMoveTo* move = [CCMoveTo actionWithDuration:obstacleMoveDuration position:aboveScreenPosition];
CCRotateTo* rotate = [CCRotateBy actionWithDuration:duration angle:rotations];
CCSpawn* moveRotate = [CCSpawn actions: move, rotate, nil];
CCCallFuncN* call = [CCCallFuncN actionWithTarget:self selector:#selector(objectAboveScreen:)];
CCSequence* sequence = [CCSequence actions:moveRotate, call, nil];
[object runAction:sequence];
if (time >= (delta + 3)) {
fastPowerUp = NO;
}
}
-(void) objectAboveScreen:(id) sender{
//make sure sender is actually of the right class
NSAssert([sender isKindOfClass:[CCSprite class]], #"sender is not a CCSprite!");
CCSprite* obstacle = (CCSprite*)sender;
//move the back to the bottom of the screen
CGPoint pos = obstacle.position;
CGSize screenSize = [[CCDirector sharedDirector]winSize];
pos.y = (-screenSize.height - [obstacle texture].contentSize.height);
pos.x = CCRANDOM_0_1() * screenSize.width;
obstacle.position = pos;
}
I really just don't know where to go from here... Should I make the powerUps a different class? If so, how would I implement something like this? I really hate trying to ask for someone to solve my question, but I really just can't rack my brain around this and I'm rather new... if it were explained to me, then I know I would be able to implement it in future games on my own...
Thanks in advance, and let me know if more information is needed...
I'd do something like
in the .h file
float speedModifier;
-(void)resetPowerUp;
in the .m
-(void)resetPowerUp
{
speedModifier = 1;
}
wherever you are initializing the level
[self resetPowerUp];
upon collision with powerup:
speedModifier = 2;
[self performSelector:#selector(resetPowerUp) withObject:nil afterDelay:5];
then wherever you are moving whatever it is which speed should be effected by the powerup mode, multiply the speed of the animation (or divide the duration it takes for it to get wherever it's going) by speedModified
hope that helps
i am new in iphone,i am using horizontal scrollview these are horizontally scrolling properly
but i want these horizontally scrolling on previous and next button action.please help me asap.
Thanks:)
Here are the steps that was worked for me
in .h file write following code.
int scrollMove;
UIScrollView *aScrView;
-(IBAction)nextBtnAction:(id)sender;
-(IBAction)previousBtnAction:(id)sender;
in .m file
- (void)viewDidLoad
{
[super viewDidLoad];
scrollMove=50;
aScrView=[[UIScrollView alloc]init];
aScrView.frame=CGRectMake(25,50, 270, 50);
aScrView.delegate=self;
aScrView.contentSize=CGSizeMake(1200, 0);
[self.view addSubview:aScrView];
// Do any additional setup after loading the view from its nib.
}
-(IBAction)nextBtnAction:(id)sender{
float coordinate = 2.0f;
//scrollMove=50;
[aScrView setContentOffset:CGPointMake(scrollMove * coordinate, 0) animated:YES];
scrollMove=scrollMove+50;
}
-(IBAction)previousBtnAction:(id)sender{
float coordinate = 1.0f;
[aScrView setContentOffset:CGPointMake(scrollMove * coordinate, 0) animated:YES];
scrollMove=scrollMove-50;
}
Hope this helps you!!!
Use this one when you want to go on next visible content of Scroll view:
(Put this one inside next button method)
float coordinate = 2.0f;
[nodeScrollView setContentOffset:CGPointMake(460 * coordinate, 0) animated:YES];
move on previous visible content view:
float coordinate = 1.0f;
[nodeScrollView setContentOffset:CGPointMake(460 * coordinate, 0) animated:YES];
(Put this one inside previous button method)
**You need some mathematical calculation with coordinate
CGRect frame = scrollView.frame;
frame.origin.x = frame.size.width * pageNumberYouWantToGoTo;
frame.origin.y = 0;
[scrollView scrollRectToVisible:frame animated:YES];
- (void)viewDidLoad
{
x=0;
y=320;
}
- (IBAction)next:(id)sender
{
y=320;
[scrl_Knot setContentOffset:CGPointMake(x+320,0) animated:YES];
x+=320;
}
- (IBAction)pre:(id)sender
{
x=0;
[scrl_Knot setContentOffset:CGPointMake(y,0) animated:YES];
y-=320;
}
- (IBAction)pre:(id)sender
{
btnNext.enabled = TRUE;
imageID--;
[scrl_venuelist setContentOffset:CGPointMake(imageID*273, 0) animated:YES];
pagecontrol.currentPage=imageID;
if(imageID <= 0)
{
btnPrevious.enabled = FALSE;
}
}
- (IBAction)next:(id)sender
{
btnPrevious.enabled = TRUE;
imageID++;
[scrl_venuelist setContentOffset:CGPointMake(imageID*273, 0) animated:YES];
pagecontrol.currentPage=imageID;
if(imageID >= imageArr.count-1)
{
btnNext.enabled = FALSE;
}
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView;
{
imageID = scrollView.contentOffset.x / scrollView.frame.size.width;
pagecontrol.currentPage=imageID;
if(imageID <= 0)
{
btnPrevious.enabled = FALSE;
imageID = 0;
}
else
{
btnPrevious.enabled = TRUE;
}
if(imageID >= imageArr.count-1)
{
btnNext.enabled = FALSE;
imageID = imageArr.count-1;
}
else
{
btnNext.enabled = TRUE;
}
}
- (void)viewDidLoad
{
scrl_venuelist.delegate=self;
scrl_venuelist.contentSize =CGSizeMake(273 * [imageArr count], 137);
if(imageID == 0)
{
btnPrevious.enabled = FALSE;
if(imageID == imageArr.count-1)
{
btnNext.enabled = FALSE;
}
}
else if(imageID == imageArr.count-1)
{
btnNext.enabled = FALSE;
}
else if(imageID > imageArr.count-1)
{
imageID = [imageArr count]-1;
}
scrl_venuelist.pagingEnabled=YES;
pagecontrol.numberOfPages=[imageArr count];
pagecontrol.currentPage=0;
}
If Any one Looking for way of doing in C# for Xamarin
public int CurrentIndex
{
get => (int)Math.Round(this.scrollView.ContentOffset.X / this.scrollView.Frame.Width);
set => this.scrollView.ScrollRectToVisible(new CGRect(new CGPoint(this.scrollView.Frame.Size.Width * value, 0), this.scrollView.Frame.Size), true);
}
This getter and Setter should provide you current page as well let you scroll to the specified page
On Button Actions Just Update Current Index to new Values, Which could current Index +1/-1.