In my game only one sprite responds to touches. How can I make a mousejoint move this sprite/body regardless of where I touch on the screen?
- (void)ccTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInView: [touch view]];
location = [[CCDirector sharedDirector] convertToGL:location];
mySprite.position = location;
}
Make sure in your initmethod that self.isTouchEnabled = YES;
Related
I feel strange, I have dark view(darkScreenView) and green view.
I using the
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
CGPoint touchViewPoint = [touch locationInView:touch.view];
NSLog(#"[self.darkScreenView pointInside:touchViewPoint withEvent:event]:%d",[self.darkView pointInside:touchViewPoint withEvent:event]);
}
When I click on the dark view or green view,
The Log still show 1. why?
I click on the green view should show log 0, but I still get the log result 1.
I am using xcode 6.3.1.
Have anyone know what problem in this situation?
Thank you~
This will work
UITouch *touch = [[event allTouches] anyObject];
CGPoint touchViewPoint = [touch locationInView:touch.view];
CGPoint pointOfDarkView = [touch.view convertPoint:touchViewPoint toView:self.darkview];
NSLog(#"[self.darkScreenView pointInside:touchViewPoint withEvent:event]:%d",[self.darkview pointInside:pointOfDarkView withEvent:event]);
Your problem:
touchViewPoint is relative to touch.view coordinate
You have to convert point to darkview coordinate first,then you can use pointInside:pointOfDarkView
Try to get touch for different views..
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
if (touch.view==GREEN_VIEW)
{
//Write your code for green view here
}
else if(touch.view==DARK_VIEW)
{
//Write your code for dark view here
}
}
Your touchViewPoint's location is relative to the touched view. So get location relative to self.darkView like below.
CGPoint touchViewPoint = [touch locationInView: self.darkView];
Here is the problem change to View you are referring to.
-(void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [[event allTouches] anyObject];
CGPoint touchViewPoint = [touch locationInView:darkView]; <----- Problem
NSLog(#"[self.darkScreenView pointInside:touchViewPoint withEvent:event]:%d",[self.darkView pointInside:touchViewPoint withEvent:event]);
}
i am moving a sprite using the touches moved method. currently the sprite jumps to the point on which the screen is touched but I want the sprite only to move when it is touched directly.
my code:
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches) {
CGPoint location = [touch locationInNode:self];
CGPoint newPosition = CGPointMake(location.x, self.size.height/2);
self.sprite.position = newPosition;
}
}
check if the touch location is inside the sprite, like this:
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint positionInScene = [touch locationInNode:self];
if(CGRectContainsPoint(self.sprite.boundingBox,positionInScene)) {
CGPoint newPosition = CGPointMake(positionInScene.x, self.size.height/2);
self.sprite.position = newPosition;
}
}
I am having some problems with setting up touches to swipe up to perform an actions. I am trying to use the code below, but it will not recognize the touches.
-(void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
NSSet *allTouches = [event allTouches];
UITouch * touch = [[allTouches allObjects] objectAtIndex:0];
CGPoint location = [touch locationInView: [touch view]];
location = [[CCDirector sharedDirector] convertToGL:location];
//Swipe Detection Part 1
firstTouch = location;
CCLOG(#"touched");
}
-(void) ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
NSSet *allTouches = [event allTouches];
UITouch * touch = [[allTouches allObjects] objectAtIndex:0];
CGPoint location = [touch locationInView: [touch view]];
location = [[CCDirector sharedDirector] convertToGL:location];
//Swipe Detection Part 2
lastTouch = location;
//Minimum length of the swipe
float swipeLength = ccpDistance(firstTouch, lastTouch);
CCActionJumpTo *jump1 = [CCActionJumpTo actionWithDuration:2 position:ccp(self.contentSize.width*.4,self.contentSize.height*.1) height:self.contentSize.height*.5 jumps:1];
[_fufunaken runAction:[CCActionRepeat actionWithAction:jump1 times:1]];
//Check if the swipe is an up swipe and long enough
if (firstTouch.y > lastTouch.y && swipeLength > 60) {
[_fufunaken runAction:[CCActionRepeatForever actionWithAction:jump1]];
}
}
It isn't even saying "touched" when I touch the screen and I do have user interactions enabled in init. Any help will be apprectiated!
In cocos2d v3 you need to replace all ccTouchesBegan/ccTouchesMoved/ccTouchesEnded to
-(void)touchBegan:(UITouch *)touch withEvent:(UIEvent *)event
-(void) touchMoved:(UITouch *)touch withEvent:(UIEvent *)event
-(void) touchEnded:(UITouch *)touch withEvent:(UIEvent *)event
The good news is that you can get the current location of the touch by simply using the following line
CGPoint touchPos = [touch locationInNode:self];
all of this is therefore, not required
/*
NSSet *allTouches = [event allTouches];
UITouch * touch = [[allTouches allObjects] objectAtIndex:0];
CGPoint location = [touch locationInView: [touch view]];
location = [[CCDirector sharedDirector] convertToGL:location];
*/
hey guys i was wondering if there was away to make an object like a UIImageView draggable. I am aware of the UITouch and touches i.e.
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *drag=[[event allTouches] anyObject];
player.center=[drag locationInView:self.view];
}
but in this way it is possible for the user to make the object jump across the screen to where he or she touches the screen but i want the user to have to manually drag the object across the screen.
please explain with code and let me know if i have to be more specific or clear...
You can do this:
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *aTouch = [touches anyObject];
CGPoint location = [aTouch locationInView:self.view];
if(CGRectContainsPoint(self.playerView.frame,location)) {
[UIView beginAnimations:#"Dragging A DraggableView" context:nil];
self.playerView.center = location;
[UIView commitAnimations];
}
}
This should give you a smooth animation.
if you want your user to drag&drop, first you have to check if the touch is inside the imageview rect frame. To improve the user experience, you can detect the touch offset from the imageview center; a good place to do this is inside the touchesBegan:withEvent:. After that, you have to change the position of the imageview, like this:
CGPoint touchOffset; //insert this inside your interface private iVars
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *drag=[[event allTouches] anyObject];
CGPoint touchLocation = [drag locationInView:self.view];
touchOffset = CGPointMake(player.center.x-touchLocation.x,player.center.y-touchLocation.y)
if(CGRectContainsPoint(player.frame,touchLocation)
player.center = CGPointMake(touchLocation.x+touchOffset.x,touchLocation.y+touchOffset.y);
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *drag=[[event allTouches] anyObject];
CGPoint touchLocation = [drag locationInView:self.view];
if(CGRectContainsPoint(player.frame,touchLocation)
player.center = CGPointMake(touchLocation.x+touchOffset.x,touchLocation.y+touchOffset.y);
}
P.S. - Next time try to search similar questions...
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch* aTouch = [touches anyObject];
UIView* aView = [aTouch view];
if (aView != self.view) {
[self.view bringSubviewToFront:aView];
}
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch* aTouch = [touches anyObject];
UIView* aView = [aTouch view];
if (aView != self.view) {
aView.center = [aTouch locationInView:self.view];
}
}
I'm using the touchesMoved method to have an image "follow" someone's finger along the bottom of the screen. So the image will follow the x position of the finger, but it ignores the y position and stays vertically-fixed at the bottom (but not horizontally-fixed). Is there some way I can implement this?
This is my code:
- (void)viewDidLoad
{
[super viewDidLoad];
// create basket image that will be shown on the screen
basketView = [[UIImageView alloc]
initWithImage:[UIImage imageNamed:#"bucket.png"]];
basketView.frame = CGRectMake(130.0, 412.0, 50.0, 50.0);
[self.view addSubview:basketView];
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
// get current touch location
UITouch *touch = [[event touchesForView:self.view] anyObject];
CGPoint point = [touch locationInView:self.view];
// update location of the image
basketView.center = point;
}
Maintain the y position, change the x
basketView.center = CGPointMake(point.x, basketView.center.y);
In touchesMoved Do this
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
// get current touch location
UITouch *touch = [[event touchesForView:self.view] anyObject];
CGPoint point = [touch locationInView:self.view];
// update location of the image
basketView.center = CGPointMake(point.x,basketView.center.y);
}
Do as follows...
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
// get current touch location
UITouch *touch = [[event touchesForView:self.view] anyObject];
CGPoint point = [touch locationInView:self.view];
point.y=basketView.center.y; //Fix 'y' of basket
// update location of the image
basketView.center = point;
}