I have a main scene that is adding many layers to it with , like :
[self addChild:layer1];
[self addChild:layer2];
..
where layer1/2 are pointers to other layers in other classes .
I need at some point , to disable the touches only on layer 2, from the main scene, or from layer2 itself .
How would i do that ?
try:
layer2.isTouchEnabled = NO;
and from within your layer2 class (i am guessing you are extending CCLayer here) :
self.isTouchEnabled = NO;
Related
Using cocos2d v2 i was able to set some other class as a layer , and add it to some scene.
I did it with :
BackgroundLayer *background=[[BackgroundLayer alloc] init];
[self addChild:[background set]]; //returns a Node
Where the background layer was a CCLayer .
Now i am trying to do the exact same where the background layer is a CCNode ,
but it wouldn’t add it to the other scene , just perform its Init method .
How would i add some other CCNode class to another CCScene class as a layer ?
Thanks ,
CCLayer no longer exists in Cocos2d V3, to be honest I see no reason for CCLayer anyways.
I think you are looking for CCNodeColor in this case.
For example:
CCScene *scene = [[CCScene alloc] init];
CCNodeColor *nodeColor = [CCNodeColor nodeWithColor:[CCColor redColor]];
[scene addChild:nodeColor];
Cocos2d-android - I have an animation which has 5 Frames. which will rolling in position. how to make the button rolling like a globe.
I don't know if it can be done like menuitem, but you can make a sprite with forever action(animation of yours 5 frames)and in ccTouchesBegan/ccTouchesEnded you add code to go to another scene or for do an another function after touching on your sprite.
`private CCSprite animatedButton; // Make your sprite visible at begin of your class/layer.`
`animatedButton = CCSprite.sprite("yourImage.png");
CCAnimation buttonAnimation = CCAnimation.animation("", 1f);
buttonAnimation.addFrame("1.png");
buttonAnimation.addFrame("2.png");
addChild(animatedButton, 1);
CCIntervalAction buttonAction = CCAnimate.action(duration, buttonAnimation, false);
animatedButton.runAction(CCRepeatForever.action(buttonAction));
`
Now should be your button(CCSprite) animating. I didnt tried code. And now you just find out in ccTouchesBegan or ccTouchesEnded if your button was touched. If yes, you could do what you want. :)
`if(animatedButton.getBoundingBox.contains(x,y)){
CCScene scene = GameLayer.scene();
CCDirector.sharedDirector().replaceScene(scene);
}`
X and y are coordinates of touch;
You can add animations to menuitem. Like this
CCMenuItem button=CCMenuItemImage.item(image, image, this, "label");
button.setScaleX((winSize.width/8.0f)/image.getTexture().getWidth());
button.setScaleY((winSize.height/8.0f)/image.getTexture().getHeight());
button.setPosition(winSize.width/2,winSize.height+50);
CCAction actionMove42=CCSequence.actions(CCDelayTime.action(0.3f), CCEaseBackOut.action(CCMoveTo.action(1.0f, CGPoint.ccp(0,0))));
button.runAction(actionMove42);
I have my main scene, above it i set a new layer with CCLayer ,this layer has a button.
but when i hit that button (CCMenu), the layer behind it is also get the touches and do stuff.
I want to enable ONLY the upper layer touches, not the one under it .
How can i do that ? (setting touch priority ? how ? )
edit:
my layer is like that :
-(CCLayer*)showHelpLayer
{
self.isTouchEnabled=YES;
[[CCDirector sharedDirector].touchDispatcher addTargetedDelegate:self priority:-256 swallowsTouches:YES];
...
...
[self addChild:menu];
[menu setHandlerPriority:-257];
return self;
}
and i am adding it to the main scene like that :
helpLayer *hlp=[[helpLayer alloc]init];
[hlp showHelpLayer];
[self addChild:hlp z:100];
you could toy with priorities, but it gets nasty. I only do that in very very specific, well contained circumstances. The best approach is to disable input on your "underneath scene(s)" before you push the new layer and control objects.
If you chose to play with priorities, remember that all menus default to this priority (cocos2D 2.xx) :
kCCMenuHandlerPriority = -128,
so if you play with priority, i would put the layer at -256 (swallowing touches) and setHandlerPriority to -257 for your menu. So anything that falls through your menu is caught by the layer and swallowed (ie not passed 'below').
example for priority approach. The fly-through menu is a class that extends CCNode and does this onEnter, after creating all menu objects in the init method :
- (void)onEnter {
[super onEnter];
MPLOGDEBUG(#"");
[[CCDirector sharedDirector].touchDispatcher addTargetedDelegate:self priority:-256 swallowsTouches:YES];
[_backMenu setHandlerPriority:-257];
[_toggleOptionsMenu setHandlerPriority:-257];
[_dialogMenu setHandlerPriority:-257];
[_labelMenu setHandlerPriority:-257];
}
after few headaches i figured out that using CCSpriteBatchNode with cocos2d olny allows to z-order sprites added to it as child (which is obvious, now i see..)
[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:#"token_default.plist"];
CCSpriteBatchNode *tokenSpriteSheet = [CCSpriteBatchNode batchNodeWithFile:#"token_default.png"];
[[CCSpriteFrameCache sharedSpriteFrameCache] addSpriteFramesWithFile:#"objects_default.plist"];
CCSpriteBatchNode *objectsSpriteSheet = [CCSpriteBatchNode batchNodeWithFile:#"objects_default.png"];
CCSprite *token = [[[CCSprite alloc] initWithSpriteFrameName:#"token_SE.png"] autorelease];
[token setPosition:tokenSpawnPoint];
CCSprite *enemy = [[[CCSprite alloc] initWithSpriteFrameName:#"token_blak_SE.png"] autorelease];
[enemy setPosition:enemySpawnPoint];
CCSprite *houseA = [[[CCSprite alloc] initWithSpriteFrameName:#"house_small.png"] autorelease];
[houseA setPosition:[self randomHousePosition]];
CCSprite *houseB = [[[CCSprite alloc] initWithSpriteFrameName:#"house_big.png"] autorelease];
[houseB setPosition:[self randomHousePosition]];
[tokenSpriteSheet addChild:token];
[tokenSpriteSheet addChild:enemy];
[objectsSpriteSheet addChild:houseA];
[objectsSpriteSheet addChild:houseB];
and since i have to add them to the display list as follows..
[_isoMap addChild:objectsSpriteSheet];
[_isoMap addChild:tokenSpriteSheet];
there is no way i can change the z-order of single tokens between other houses...
they will be always rendered over the house until i change the order of these batch nodes
btw, i can "merge" all sprites' arts in one big single batch node... doing so it became possible to order sprites using sprite's coordinates
[fullSpriteSheet reorderChild:token z:token.position.y];
i'm a little stuck with it...... is there a way to achieve that, having different sprite bacth nodes? or is possible to programmatically merge two batchnodes? (or something like that)
i found KnightFight, a really interesting open project on github by LozArcher.. he used CCSpriteFrame and CCSprite's setDisplayFrame method, instead of batch nodes... but i can't run it since it seems to be an older version of cocos2d (apparently not working with xcode 4)
i found out that changing the vertexZ property of a CCNode (like a CCSprite) it actually changes its Z position (so it will be slightly bigger/smaller, and also translated)
so, in order to arrange on z-index CCSprites with different spriteSheet i had to use reorderChild method (to just change the rendering order) and mostly i need NOT TO USE CCSpriteBatchNode..
after a little refactoring of the above example, i should have:
CCSprite *token = [CCSprite spriteWithSpriteFrameName:#"token_SE.png"];
[token setPosition:tokenSpawnPoint];
CCSprite *enemy = [CCSprite spriteWithSpriteFrameName:#"token_blak_SE.png"];
[enemy setPosition:enemySpawnPoint];
CCSprite *houseA = [CCSprite spriteWithSpriteFrameName:#"house_small.png"];
[houseA setPosition:[self randomHousePosition]];
CCSprite *houseB = [CCSprite spriteWithSpriteFrameName:#"house_big.png"];
[houseB setPosition:[self randomHousePosition]];
[_isoMap addChild:token];
[_isoMap addChild:enemy];
[_isoMap addChild:houseA];
[_isoMap addChild:houseB];
i also added each sprite to a NSMutableArray
and then in a for loop (inside the update scheduled method):
CCSprite *sprite = [mySpritesArray objectAtIndex:i];
[_isoMap reorderChild:sprite z:(_isoMap.mapSize.height - sprite.y)];
hope this could help someone :)
I still think that is not better solution,
if your objects on map are moving dynamically, you can still stuck in z order issues.
I know its very old post, and people keep coming here by google search,
so I am posting solution here.
float lowestZ = tilemap.map.width +tilemap.map.height ;
float currentZ = self.gridLocation.x + self.gridLocation.y ;
int zOrderDecided = lowestZ + currentZ - 1 ;
[self.parent reorderChild:self z:zOrderDecided];
Set the Sprites Z order to it's Y position on the map. Reorder your dynamic sprites in an update loop. Calculate the Z order using the Sprites current Y position and the visible height of the map.
void LocalGameController::SetZOrderForObject(cocos2d::Sprite *object){
int objectZOrder = visibleSize.height - object->getPositionY();
context->reorderChild(object, objectZOrder);
}
I initialize my CCLayer using the following init code:
- (id)init {
if((self=[super init])) {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.wantsFullScreenLayout = YES;
picker.allowsEditing = NO;
picker.showsCameraControls = NO;
picker.navigationBarHidden = YES;
picker.toolbarHidden = YES;
picker.cameraViewTransform= CGAffineTransformMakeScale(1.3, 1.33);
[[[CCDirector sharedDirector] openGLView] addSubview:picker.view];
CCSprite *gold = [CCSprite sprite];
gold.position = ccp(150, 150);
[self addChild:gold];
}
return self;
}
The CCSprite was above the camera view before the camera shutter opens, but when the shutter opens, the CCSprite is overlapped by the camera.
Can I rearrange the order of these 2 objects / put the camera view to the back ?
Not without some extra work.
To understand this you have to consider that you're adding the camera view to the openGLView by Cocos2D. This makes the camera view a "child" view of the Cocos2D view. This is similar to adding a child node to a CCScene or CCLayer, and then wanting to have that node drawn behind the scene or layer. You can't do this without changing the way the view hierarchy is setup.
So you will have to modify Cocos2D's startup so that the openGLView is not added to the UIWindow directly, but to another UIView.
UIView* dummyView = [[UIView alloc] initWithFrame:[window bounds]];
[dummyView autorelease];
[dummyView addSubview:[CCDirector sharedDirector].openGLView];
rootViewController.view = dummyView;
You can then add the camera view to the dummyView (not the openGLView or you'll have the same problem as before) and perform sendSubviewToBack on it so that it is in the background.
You will also have to initialize the OpenGL view of Cocos2D with kEAGLColorFormatRGBA8 pixelFormat in order to provide an alpha channel.
EAGLView* glView = [EAGLView viewWithFrame:[window bounds]
pixelFormat:kEAGLColorFormatRGBA8
depthFormat:0
preserveBackbuffer:NO
sharegroup:nil
multiSampling:NO
numberOfSamples:0];
You also need to make the openGLView transparent:
[CCDirector sharedDirector].openGLView.opaque = NO;
Of course this only works if you don't render anything fullscreen on the cocos2d view. For example, if you provide a fullscreen background image for your Cocos2D view, nothing will show up because the background image is rendered on top of the camera view.
You can find a more detailed explanation in the second edition of my book. You can also download the book's source code from that link and see the examples of chapter 15. Or download Kobold2D and use the provided Cocos2D-With-UIKit-Views template project.