I am designing a game that changes scenes as the user is playing. The scenes change based on a NSTimer. I can ge everything to change accordingly in regards to graphics. Can even get background music to change.
Where I seem to be hitting a roadblock is changing the score sound and the sound for when the player collides with an object and dies.
As it it's right now I can cancel the sound for scene one but cannot get another one to play.
* on phone don't know how to hand code a code block on here*
If([_timer isValid]) {
//plays correct audio and does not continue when scene changes
}
Else if ([_timer == nil ]){
//suppose to play other sound but does nothing.
}
I would really prefer to call the different sounds based on if a method is called to change something along the lines of
Else if ([ _method1 == TRUE]) {
//play sound
}
Any advice in the right direction appreciated.
EDIT
- (void)didBeginContact:(SKPhysicsContact *)contact {
if( _moving.speed > 0 ) {
if( ( contact.bodyA.categoryBitMask & scoreCategory ) == scoreCategory || ( contact.bodyB.categoryBitMask & scoreCategory ) == scoreCategory ) {
// has contact with score entity
_score++;
_scoreLabelNode.text = [NSString stringWithFormat:#"%d", _score];
//Pick Up Egg
//Sound for Score
SKAction* teslaPoint = [SKAction playSoundFileNamed:#"Point1" waitForCompletion: YES];
[self runAction:teslaPoint withKey:#"teslaPoint"];
I have been trying to structure an IF statement based on the background image because that changes with the sounds.
EDIT
_scoreSound = [SKAudioNode node];
SKAudioNode* teslaPoint = [SKAudioNode nodeWithFileNamed:#"Point1"];
[_scoreSound addChild:teslaPoint];
EDIT
THIS IS ADDED IN initwithSize:
_scoreSound = [SKNode node];
[self addChild:_scoreSound];
Then its called in the contacts
EDIT
//Sound for Score
if([_timer isValid]){
SKAction* teslaPoint = [SKAction playSoundFileNamed:#"Point1" waitForCompletion:YES];
[self runAction:teslaPoint withKey:#"teslaPoint"];
}
if ([_bgImage isEqual: #"bgimage2.png"]){
SKAction* teslaPoint = [SKAction playSoundFileNamed:#"grassypoint" waitForCompletion:YES];
[self runAction:teslaPoint withKey:#"teslaPoint"];
}
Related
I have an object (ball) contacting the ground: the ball is very bouncy & contacts ground more then maybe 7 times.
I've utilized the categoryBitMask & contactTestBitMask and set everything up nicely in -(void)didBeginContact:(SKPhysicsContact *)contact.
I've created a property SKAction to handle sound effects & assigned an audio file to the action:
self.sfxBounce1 = [SKAction playSoundFileNamed:#"bounce1.caf" waitForCompletion:NO];
I call upon this sfxBounce1 in the didBeginContact. Point is it's all working great. Except one problem is that my ball bounces a lot, but for personal reasons, I need the auddio/SKAction to stop playing after the ball has contacted the ground 3 times.
In game, the ball is still bouncing after 3 times it's just I need the sound to stop playing.
But because the code is in an IF statement in the didBeginContact method, the audio keeps playing and playing after every contact with the ground. I'm still very green in programming, especially with Objective-C.
Below is some code
-(void)didBeginContact:(SKPhysicsContact *)contact
{
if ((firstBody.categoryBitMask == ballCategory) && (secondBody.categoryBitMask == groundCategory)) //Ball & Ground contact
{
int random = arc4random() %6; //Random # generator of 7 possibilites.
switch (random) //Generated # represents a case, which in turn initiates a bounce sound upon contact.
{
case 0:
[self runAction:self.sfxBounce1];
break;
case 1:
[self runAction:self.sfxBounce2];
break;
case 2:
[self runAction:self.sfxBounce3];
break;
case 3:
[self runAction:self.sfxBounce4];
break;
case 4:
[self runAction:self.sfxBounce5];
break;
case 5:
[self runAction:self.sfxBounce6];
break;
case 6:
[self runAction:self.sfxBounce7];
break;
}
[self deleteNode];
}
I can't figure out what code to type in each of the 6 cases (between [self runAction:self.sfxBounce1]; & break;) that will stop the action after a set amount of bounces/contacts with the ground.
At the top in your #interface create an int you can reference throughout your code:
property (nonatomic) int bounceCount;
Here is an updated version of your didBeginContact:
-(void)didBeginContact:(SKPhysicsContact *)contact
{
if ((firstBody.categoryBitMask == ballCategory) && (secondBody.categoryBitMask == groundCategory)) //Ball & Ground contact
{
self.bounceCount++;
if(self.bounceCount>3)
return;
//Your Code
}
}
I'm trying to make a cocos2D game in which every time the player touches the screen, the background scrolls to the left thus simulating moving forwards.
The "background" consists of 2 very long rectangular panels called pane1 and pane2 linked together in a chain. When the screen is touched, I use CCActionMoveTo to move both panes to the left, and when one pane is completely off the screen, I move it back around to the other side to create an infinite loop.
The problem is the background scrolling animation takes .2 seconds, and if the player just mashes the screen a lot, it messes up everything. And, sometimes these two panes experience different amounts of lag so that they desync.
How do I set a delay on a function so that it can only be called once per designated time period? In other words, I want to add a "cooldown" to the function that handles player touch.
This function is called every time the scene is touched:
- (void)playerMove {
CCActionMoveTo * actionMove1 = [CCActionEaseOut actionWithAction:
[CCActionMoveTo actionWithDuration:.2
position:ccp(pane1.position.x - 150, 0)]
rate: 1.5];
CCActionMoveTo * actionMove2 = [CCActionEaseOut actionWithAction:
[CCActionMoveTo actionWithDuration:.2
position:ccp(pane2.position.x - 150, 0)]
rate: 1.5];
CCActionCallFunc * actionCallGenerateTerrain = [CCActionCallFunc actionWithTarget: self selector:#selector(generateTerrain)];
counter++;
if(pane1InUse){
[pane1 runAction: [CCActionSequence actionWithArray:#[actionMove1, actionCallGenerateTerrain]]];
[pane2 runAction: actionMove2];
}
else
{
[pane1 runAction: actionMove1];
[pane2 runAction: [CCActionSequence actionWithArray:#[actionMove2, actionCallGenerateTerrain]]];
}
}
-(void) generateTerrain {
if (counter%8 == 0){
pane1InUse ^= YES;
CCLOG(#"%#", pane1InUse ? #"YES" : #"NO");
if (pane1InUse){
CCLOG(#"Generating Terrain 2 ...");
pane2.position = ccp(pane1.position.x+pane1.boundingBox.size.width, 0);
}
else{
CCLOG(#"Generating Terrain 1 ...");
pane1.position = ccp(pane2.position.x+pane2.boundingBox.size.width, 0);
}
}
}
Also you may have noticed I'm using this weird block of code because ideally I would like actionMove1 and actionMove2 to be executed simultaneously, and once they are both done, then execute actionCallGenerateTerrain, but I don't know how to implement that:
if(pane1InUse){
[pane1 runAction: [CCActionSequence actionWithArray:#[actionMove1, actionCallGenerateTerrain]]];
[pane2 runAction: actionMove2];
}
else
{
[pane1 runAction: actionMove1];
[pane2 runAction: [CCActionSequence actionWithArray:#[actionMove2, actionCallGenerateTerrain]]];
}
}
You probably want to put pane1 and pane2 in a ccNode , call it combinedPanes (this will make pane1 and pane2 always move in sync). Then perform a single action on combinedPane. Also add a boolean state property, call it moveEnabled;
id movePane = [CCActionMoveTo ... ]; // whatever you have for pane1 or pane2
id moveComplete = [CCActionBlock actionWithBlock:^{
[self generateTerrain];
self.moveEnabled = YES;
}];
self.moveEnabled = NO;
[movePane runAction:[CCActionSequence actions:movePane,moveComplete,nil]];
and use moveEnabled to allow/deny the touch processing that detected a touch and triggered this move code. During the move, this will drop touches and effectively block your hysterical user tapping like nuts.
-(void) playerMove {
if (self.moveEnabled){
//
// the rest of your logic
// ...
}
}
and in init (or if you detect this condition already, place it there).
self.moveEnabled = YES;
One simple way to prevent a function being called twice within a time period is to wrap it in an if statement like:
if ([[NSDate date] timeIntervalSinceDate:lastUpdated] > minDelay)
{
// call function here
lastUpdated = [NSDate date];
}
where lastUpdated is initialized using [NSDate date] and minDelay is the required minimum delay in seconds.
I am using SpriteBuilder to make a game. The objective is to destroy some CCSprites. I have 3 sprites on screen and are destroyed by another sprite, so the code must have something to do with when there are no more 'enemy' sprites remaining a next button must show. I have looked on the internet and are inexperienced with Cocos2D coding. Here is the code I have used to get rid of the 'enemy'
-(void)ccPhysicsCollisionPostSolve:(CCPhysicsCollisionPair *)pair danald:(CCNode *)nodeA wildcard:(CCNode *)nodeB {
float energy = [pair totalKineticEnergy];
if (energy > 5000.f) {
[self danaldRemoved:nodeA];
}
}
If the object is hit with a certain speed it will call the method below
- (void)danaldRemoved:(CCNode *)Danald {
CCParticleSystem *explosion = (CCParticleSystem *)[CCBReader load:#"Explosion"];
explosion.autoRemoveOnFinish = TRUE;
explosion.position = Danald.position;
[Danald.parent addChild:explosion];
[Danald removeFromParent];
}
Thanks in an advanced, sorry if this question has been asked before but I cannot find it
Well I would suggest this method:
Create a variable where you store the number of sprites left. For example:
int spritesLeft;
And then initialize it to 0:
-(void) didLoadFromCCB{
//REST OF CODE
spritesLeft=3; //3 because you said there are only 3.
}
Now when you call danaldRemoved: method, just subtract 1 to spritesLeft, and check if spritesLeft is equal to 0. If it's true, just call your method to make a button appear:
- (void)danaldRemoved:(CCNode *)Danald {
spritesLeft--; //substract 1
CCParticleSystem *explosion = (CCParticleSystem *)[CCBReader load:#"Explosion"];
explosion.autoRemoveOnFinish = TRUE;
explosion.position = Danald.position;
[Danald.parent addChild:explosion];
[Danald removeFromParent];
//check if game is over.
if (spritesLeft == 0){
[self printButton];
}
}
Now create the method printButton, but before go to SpriteBuilder, create the button and place it where you want. Now uncheck 'Visible' value, and then go to code connections, and select 'Doc root var' (under custom class) and write a name for the button, for example: nextButton. At the selector value write: changeLevel and target: document root
Now declare it at the top of your .m file as you did with any other objects:
CCButton *nextButton;
Method for button (just set visibility ON)
-(void) printButton{
nextButton.visible = YES;
}
And now your method to change level:
-(void) changeLevel{
CCScene *nextLevel = [CCBReader loadAsScene:#"YOUR LEVEL"];
[[CCDirector sharedDirector] replaceScene:nextLevel];
}
Hope this helps!
EDIT: HOW TO DETECT WHEN A SPRITE GOES OFF THE SCREEN
As I said, create any kind of physic object in spritebuilder. For example, I use CCNodeColor. Then make it a rectangle and place it at left of the screen. Now go to physics, enable physics, polygon type and static. Now in connections, select doc root var and call it _leftNode. Now repeat with top,right and bottom and call them _topNode, etc.
Now go to code, declare your new nodes: CCNode *_leftNode; and so...
Now let's make a collision type:
_bottomNode.physicsBody.collisionType = #"_bound";
_leftNode.physicsBody.collisionType = #"_bound";
_rightNode.physicsBody.collisionType = #"_bound";
_topNode.physicsBody.collisionType = #"_bound";
And do the same with your sprite, but I think you have done that before. Let's make an example:
spritename.physicsBody.collisionType = #"_sprite";
So now implement the method:
-(void)ccPhysicsCollisionPostSolve:(CCPhysicsCollisionPair *)pair _sprite:(CCNode *)nodeA _bound:(CCNode *)nodeB {
[_physicsNode removeChild:nodeA cleanup:YES];
}
And that's all.
This question is too primitive, but I have been trying for the last 8 hours, and it is eating away my energy ( and confidence levels too :))
In my class, I have registered for Targeted touches.
[[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:-1 swallowsTouches:YES];
I would like to check if the user is performing single tap or double tap. In ccTouchBegan method, first gets a touch with singleTap, then gets a touch with doubleTap. I found a very interesting solution for this one, in one of the Cocos2d Forums. ( I could not locate it now.. )
The solution goes like this.
switch (touch.tapCount) {
case 2:
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:#selector(handleSingleTouch:) object:singleTouchLocation];
// Handle Double Touch here
break;
case 1:
self.singleTapLocation = ccp(location.x,location.y);
self.singleTouchLocation = touch;
[self performSelector:#selector(handleSingleTouch:) withObject:touch afterDelay:0.3
];
break;
}
Everything looks to be working fine. Essentially, you schedule a single touch handler with a delay and see if it is actually a double tap. If it is a double tap, then cancel singletap handler and perform logic for double tap.
But my problem is, In the single touch handler (handleSingleTouch), I am adding a CCSprite to the UI. This action is not working. No sprite gets added. (Although the method is called.). In fact this works, If I call the selector with no delay, but with delay, the sprite is not added.
I am not a Objective C expert, So, I apologize if the question is too primitive.
Edit 1: The original thread.
Edit 2: Posting handleSingleTouch.. only relevant code.
-(void) handleSingleTouch:(UITouch * ) touch {
CGPoint location = [touch locationInView: [touch view]];
CGPoint glLocation = [MainSceneLayer locationFromTouch:touch];
//Single tap
CCLOG(#"Single tap: Adding marker image");
if(zoomedOut) {
CGPoint globalCoordinates = [quadConvertor convertLocalToGlobal:location
inActiveQuadrant:activeQuadrant];
if( [self isTouchValidForSelectedItem:globalCoordinates] == Matched) {
[self addMarkerImages:glLocation];
} else if([self isTouchValidForSelectedItem:globalCoordinates] == NotMatched) {
[missedLabel stopAllActions];
for (ImageQuadrants* quad in quadrants) {
if(quad.quadrantNumber == activeQuadrant) {
missedLabel.position = ccp((quad.center.x * -1)+glLocation.x , (quad.center.y * -1)+glLocation.y);
//markers.position = ccp((quad.center.x * -1)+touchPosition.x , 320);
}
}
id blinkAction = [CCBlink actionWithDuration:1 blinks:3];
id makeInvible = [CCCallFunc actionWithTarget:self selector:#selector(makeInvisible:)];
id seq = [CCSequence actions:blinkAction, makeInvible, nil];
[missedLabel runAction:seq];
} else {
[alreadyAccountedLabel stopAllActions];
for (ImageQuadrants* quad in quadrants) {
if(quad.quadrantNumber == activeQuadrant) {
alreadyAccountedLabel.position = ccp((quad.center.x * -1)+glLocation.x , (quad.center.y * -1)+glLocation.y);
//markers.position = ccp((quad.center.x * -1)+touchPosition.x , 320);
}
}
id blinkAction = [CCBlink actionWithDuration:1 blinks:3];
id makeInvible = [CCCallFunc actionWithTarget:self selector:#selector(makeInvisible1:)];
id seq = [CCSequence actions:blinkAction, makeInvible, nil];
[alreadyAccountedLabel runAction:seq];
}
}
swipeStartPoint = [touch locationInView:touch.view];
}
i dont know if thats a typo in your question only but your delay method is all wrong. There is no withDelay: argument. it should look like this:
[self performSelector:#selector(handleSingleTouch:) withObject:touch afterDelay:0.1];
EDIT:
Since your problem is most probably with the touch getting lost. Try [touch retain] before calling the delayed method. Another way is changing the handleSingleTouch: method to take two floats x and y or a CCPoint as arguments instead of a UITouch. Then you create the floats before the delayed method and pass them in the delayed method. This way you will avoid a memory leak from retaining a touch as well since most probably you cant release it after calling the delayed method.
hope this helps
Hi All
Im just having an issue with particle effects not appearing all the time. Im coding using objective c and cocos2d for the iphone.
Below is the code in question.
CCParticleExplosion *emitter;
emitter = [[CCParticleExplosion alloc] initWithTotalParticles:30];
emitter.texture = [[CCTextureCache sharedTextureCache] addImage:#"particle_bubble.png"];
emitter.position = ccp(MidX,MidY);
emitter.life =0.5;
emitter.duration = 0.5;
emitter.speed = 60;
[self addChild:emitter];
emitter.autoRemoveOnFinish = YES;
////////////////////////////////////////////////////
CCParticleMeteor *emitter2;
emitter2 = [[CCParticleMeteor alloc] initWithTotalParticles:150];
emitter2.texture = [[CCTextureCache sharedTextureCache] addImage:#"fire_particle.png"];
emitter2.position = ccp(MidX,MidY);
emitter2.life = 0.5;
emitter2.duration = 2;
emitter2.speed = 60;
id emitMove = [CCMoveTo actionWithDuration:0.5 position:HUD.moonSprite.position ];
[self addChild:emitter2 z:1];
[emitter2 runAction:[CCSequence actions:emitMove, nil]];
emitter2.autoRemoveOnFinish = YES;
This code is within the same function right after each other as shown.
but sometimes the 2nd particle effect is not created and i cant figure out why. the first particle effect is always created no problems so im sure it is getting into the function correctly but sometimes (almost 50%) the 2nd meteor emitter is not displayed. i have tried messing around with z values to make sure it is not hidden behind an other object and it doesnt appear to be the problem. Anyone have any ideas on why this would be happening?
Thanks
G
I suggest using the 71 squared particle designer. http://particledesigner.71squared.com/
Did the trick for me.
Try this:
Define the emitters in a local variable (.h)
Call this before the code above:
if (emitter.parent == self) {
NSLog(#"em1 released");
[emitter release];
}
if (emitter2.parent == self) {
NSLog(#"em2 released");
[emitter2 release];
}
This checks if the emitter is a child and removes it, so you can remove the emitter.autoRemoveOnFinish so your emitter will show every time