A fast, easy to use, free, and community supported 2D game engine
Hi, Good Men!
Can I use SimpleAudioEngine to play "mp3" background audio, and use PASoundmgr to play positional sound effects at the sample Layer or Class? For PASoundmgr can only play "ogg" songs, and the "ogg" format songs is 2 times bigger than "mp3" format.
Thank You!
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Steve Oldmeadow
Administrator
No because SimpleAudioEngine uses CDSoundEngine which is an OpenAL sound engine that can not be used with PASoundMgr. Just use AVAudioPlayer directly to play mp3 sounds. It is a very easy to use API and what is used by SimpleAudioEngine and CDAudioManager for playing background music.
@Steve Oldmeadow,
I have put AVPlayer and PASoundMgr together, it work very well. Thank you very much!
I should mention here, if somebody hope to use PASoundMgr or PASoundSource, he should copy folder"sound-engine" &"Tremor" to the project himself, it is not in the project template of 0.8.1-beta. and the "ivorbisfile_example.c" should be removed.
Here is the Codes base on 0.8.1-beta template, for the Thanks to the kindness from Steve Oldmeadow.
//HelloWorldScene.h
// When you import this file, you import all the cocos2d classes
#import <Foundation/Foundation.h>
#import "cocos2d.h"
#import <AVFoundation/AVAudioPlayer.h>
#import "PASoundMgr.h"
#import "PASoundSource.h"
// HelloWorld Layer
@interface HelloWorld : Layer <AVAudioPlayerDelegate>
{
AVAudioPlayer *player;
PASoundSource *source1;
Sprite *source1Sprite;
}
// returns a Scene that contains the HelloWorld as the only child
+(id) scene;
@end
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#import "HelloWorldScene.h"
// HelloWorld implementation
@implementation HelloWorld
+(id) scene
{
// 'scene' is an autorelease object.
Scene *scene = [Scene node];
// 'layer' is an autorelease object.
HelloWorld *layer = [HelloWorld node];
// add layer as a child to scene
[scene addChild: layer];
// return the scene
return scene;
}
// on "init" you need to initialize your instance
-(id) init
{
// always call "super" init
// Apple recommends to re-assign "self" with the "super" return value
if( (self=[super init] )) {
// create and initialize a Label
Label* label = [Label labelWithString:@"Hello World" fontName:@"Marker Felt" fontSize:64];
// ask director the the window size
CGSize size = [[Director sharedDirector] winSize];
// position the label on the center of the screen
label.position = ccp( size.width /2 , size.height/2 );
// add the label as a child to this Layer
[self addChild: label];
NSString *mySoundClip = [[NSBundle mainBundle] pathForResource:@"BackGroundShort" ofType:@"mp3"];
player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:mySoundClip] error:NULL];
[player setDelegate:self];
[player prepareToPlay];
[player play];
player.numberOfLoops=-1;
[PASoundMgr sharedSoundManager];
source1 = [[PASoundSource alloc] initWithFile:@"cowbell" looped:YES];
[[[PASoundMgr sharedSoundManager] listener] setPosition:ccp(240,160)];
source1Sprite = [Sprite spriteWithFile:@"Gift.png"];
[self addChild:source1Sprite z:0];
source1Sprite.position = ccp(10,60);
[source1 setGain:0.5f];
[source1 setRolloff:0.3f];
//[source1 setPitch:0.1f];
id move = [MoveBy actionWithDuration:4 position:ccp(460,0)];
id sequence = [Sequence actions:move,[move reverse],nil];
[source1Sprite runAction:[RepeatForever actionWithAction:sequence]];
[source1 playAtPosition:ccp(240,160)];
[self schedule:@selector(updateSoundPosition:)];
}
return self;
}
-(void)updateSoundPosition: (id)theSender
{
[[[PASoundMgr sharedSoundManager] listener] setPosition:source1Sprite.position];
//[source1 playAtPosition:source1Sprite.position];
}
- (void)audioPlayerBeginInterruption:(AVAudioPlayer *)aPlayer{
//[aPlayer pause];
}
- (void)audioPlayerEndInterruption:(AVAudioPlayer *)aPlayer{
[aPlayer play];
}
// on "dealloc" you need to release all your retained objects
- (void) dealloc
{
// in case you have something to dealloc, do it in this method
// in this particular example nothing needs to be released.
// cocos2d will automatically release all the children (Label)
// don't forget to call "super dealloc"
[super dealloc];
}
@end
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