I'm trying to pause the scene and I can pause it with this code but how do I resume it when I click the same button?
#property (SK_NONATOMIC_IOSONLY, getter = isPaused) BOOL paused;
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
for (UITouch *touch in touches)
{
SKSpriteNode *pause = (SKSpriteNode*)[self childNodeWithName:#"pause"];
CGPoint location = [touch locationInNode:self];
if([pause containsPoint:location])
{
self.scene.view.paused = YES;
}
}
}
Try this:
self.scene.view.paused = !self.scene.view.paused;
Related
basically for now I got TitleScene, where are present name of the my game and when tap anywhere on screen it jumps to GameScene, it looks something like this:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
SKScene *scene = [GameScene sceneWithSize:self.size];
SKTransition *transition = [SKTransition pushWithDirection:SKTransitionDirectionUp duration:1.0f];
[self.view presentScene:scene transition:transition];
}
My question how can i change this method to button?
maybe give your sprite a name of "button" so you know which one youre touching
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
/* Called when a touch begins */
for (UITouch *touch in touches) {
CGPoint location = [touch locationInNode:self];
SKNode *touchedNode = [self nodeAtPoint:location];
if (touchedNode && [touchedNode.name isEqual:#"button"]) {
// your code here
}
}
}
So... I am working on this small Mario-like game for iOS and have run into a problem that I cannot seem to fix.
When using my controls (see the screenshot) they sometime get "stuck" as in, the iOS device did not notice that I let go of a button. This causes the player to keep on moving in a direction after you have let go of the button.
Edit: It seems that the malfunction happens when I click two buttons at the exact same time.
Hopefully, someone will be able to spot what I can do differently in the following code:
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
for (UITouch *touch in touches) {
CGPoint touchLocation = [touch locationInNode:self];
[self touchStateChanged:touchLocation buttonState:YES];
}
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
for (UITouch *touch in touches) {
CGPoint prevTouchLocation = [touch previousLocationInNode:self];
[self touchStateChanged:prevTouchLocation buttonState:NO];
CGPoint touchLocation = [touch locationInNode:self];
[self touchStateChanged:touchLocation buttonState:YES];
}
}
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
for (UITouch *touch in touches) {
// Some other logic... {...}
[self touchStateChanged:touchLocation buttonState:NO];
}
}
-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
for (UITouch *touch in touches) {
CGPoint touchLocation = [touch locationInNode:self];
[self touchStateChanged:touchLocation buttonState:NO];
}
}
-(void)touchStateChanged:(CGPoint)location buttonState:(BOOL)state
{
SKNode *n = [self nodeAtPoint:location];
if ([n.name isEqualToString:#"LeftMove"]) {
self.player.moveLeft = state;
}
else if ([n.name isEqualToString:#"RightMove"]) {
self.player.moveRight = state;
}
else if ([n.name isEqualToString:#"Jump"]) {
self.player.didJump = state;
}
}
Screenshot showing buttons:
Thanks :-)
Partly Solved...
Current solution:
Added an instance variable called _touchEvent of type UIEvent and added the following line to touchesEnded:
_touchEvent = event;
Added the following code to my update method:
if (_touchEvent && (int)[[_touchEvent allTouches]count] == 0) {
self.player.moveLeft = NO;
self.player.moveRight = NO;
self.player.didJump = NO;
}
if (_touchEvent && (int)[[_touchEvent allTouches]count] == 1) {
for (UITouch *touch in [_touchEvent allTouches]) {
SKNode *n = [self nodeAtPoint:[touch locationInNode:self]];
if ([n.name isEqualToString:#"Jump"]) {
self.player.moveLeft = NO;
self.player.moveRight = NO;
}
}
}
I think the problem is the location of touch (in -(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event method) is outside any node.
Try to implement something like this
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
for (SKNode *node in yourButtonsArray) {
// Some other logic... {...}
[node setState:NO];
}
}
Or you should take a look at KKButtonBehaviour from KoboldKit framework.
I'm attempting to change the parent node of a sprite after it is dropped, but I'm getting a nil error.
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
for (UITouch *touch in touches) {
CGPoint location = [touch locationInNode:self];
SKSpriteNode *gamePiece = [self pickObject];
gamePiece.position = location;
gamePiece.physicsBody.dynamic = NO;
[self addChild:gamePiece];
_currentTouch = touch;
currentGamePiece = gamePiece;
CGPoint touchLocation = [touch locationInNode:self.scene];
if(touchLocation.y > 350)
{
_bg.position = CGPointMake(_bg.position.x, _bg.position.y-2);
}
}
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
/* Called when a touch begins */
for (UITouch *touch in touches) {
CGPoint location = [touch locationInNode:self];
if ([touch isEqual:_currentTouch])
{
currentGamePiece.position = location;
}
CGPoint touchLocation = [touch locationInNode:self.scene];
if(touchLocation.y > 350)
{
_bg.position = CGPointMake(_bg.position.x, _bg.position.y-2);
}
}
}
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
/* Called when a touch begins */
for (UITouch *touch in touches)
{
CGPoint location = [touch locationInNode:self];
if ([touch isEqual:_currentTouch])
{
currentGamePiece.position = location;
currentGamePiece.physicsBody.dynamic = YES;
SKAction *removeNode = [SKAction removeFromParent];
[gamePiece runAction: removeNode];
[_bg addChild:gamePiece];
}
}
}
Maybe it has something to do with the switch to "currentGamePiece", but when I try to remove "currentGamePiece" from its parent, I get an error like "attempting to add node that already has a parent". I may just not be going about it the right way. What's the problem?
Try replacing this code...
SKAction *removeNode = [SKAction removeFromParent];
[gamePiece runAction: removeNode];
[_bg addChild:gamePiece];
with this...
[gamePiece removeFromParent];
[_bg addChild:gamePiece];
The issue is gamePiece is added to the _gb before the SKAction has a chance to remove it from its parent. The app crashes because a node can't have two parents.
I have a node that acts like an UIButton and a node that performs an action when the screen gets touched.
The problem is that the lion jump action does not get fired.
In addition: both names of the nodes are correct.
My code for the UIEvent:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInNode: self];
SKNode *node = [self nodeAtPoint:location];
UITouch *lionTouch = [touches anyObject];
CGPoint locationLion = [lionTouch locationInView:[self view]];
SKNode *lionNode = [self nodeAtPoint:locationLion];
if ([lionNode.name isEqualToString:#"veggieLion"]) {
if (!lionIsJumping) {
[self lionJump];
lionIsJumping = YES;
}
}
if ([node.name isEqualToString:#"repalyButton"]) {
// Button action
}
}
Apple documentation for SKNode says the method nodeAtPoint "Returns the deepest descendant that intersects a point."
I've had this trouble in the past. where the method would return the SKSpriteNode that I had used for the background, even if I were definitely tapping the target sprite/node!
Since you are checking for two nodes, I would approach it in the following way:
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInNode: self];
SKNode * lionNode = [self childNodeWithName:#"veggieLion"];
SKNode * replayButton = [self childNodeWithName:#"repalyButton"];
if ([self.lionNode containsPoint:location]) {
if (!lionIsJumping) {
[self lionJump];
lionIsJumping = YES;
}
return;
}
if ([self.replayButton containsPoint:location]) {
// Button action
return;
}
/* test for other targets */
}
I have a Spritekit project in xcode on my main screen. However I would really like to manage it from another class so as to not cluster my main. So I added a new class to manage and handle it. Sadly I can't seem to get it to show in my main (or I might be doing it wrong). My myscene.m consists of pretty much the same code including the spaceship and this is where I moved the code too ( I didn't bother adding the methods like touchesBegan)
// joysitck.m
// controlpad
//
#import "joysitck.h"
#implementation joysitck
{
BOOL controlButtonOn;
}
float controlx=200;
float controly=200;
float touchX = 0.0;
float touchY=0.0;
- (instancetype)init
{
if (self = [super init]) {
self.name = #"controlPadNode";
SKSpriteNode *controlPadNode = [SKSpriteNode spriteNodeWithImageNamed:#"game-controller-frontb"];
controlPadNode.position = CGPointMake(controlx,controly);
[controlPadNode setScale:0.5];
controlPadNode.name = #"controlPadNode";
controlPadNode.zPosition = 1.0;
[self addChild:controlPadNode];
}
return self;
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInNode:self];
SKNode *node = [self nodeAtPoint:location];
//if control pad touched
if ([node.name isEqualToString:#"controlPadNode"]) {
touchX = location.x;
touchY = location.y;
controlButtonOn= true;
}
}
//when touch moves
- (void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInNode:self];
SKNode *node = [self nodeAtPoint:location];
//if control pad touched
if ([node.name isEqualToString:#"controlPadNode"]) {
touchX = location.x;
touchY = location.y;
controlButtonOn= true;
}
}
- (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [touches anyObject];
CGPoint location = [touch locationInNode:self];
SKNode *node = [self nodeAtPoint:location];
//if control pad touched
if ([node.name isEqualToString:#"controlPadNode"]) {
controlButtonOn= false;
}
}
//update method
-(void)update:(NSTimeInterval)currentTime {
if (controlButtonOn) {
//the control pad
SKNode *controlNode = [self childNodeWithName:#"controlPadNode"];
SKNode *node = [self childNodeWithName:#"spaceShipNode"];
float angle = atan2f (touchY - controly, touchX - controlx) ;
SKAction *moveShip=[SKAction moveByX:6*cosf(angle) y:0 duration:0.005];
[node runAction: moveShip];
}
}
#end
You haven't added joystick node to the scene.
Add this code to MyScene's initWithSize method (before [self addship]):
joysitck *joysitckNode = [[joysitck alloc] init];
[self addChild:joysitckNode];