CUSound.h

//
//  CUSound.h
//  Cornell Extensions to Cocos2D
//
//  This method provides a platform-independent way of refering to a (potentially)
//  loaded sound asset. Technically, sounds are just referred to be file name, so
//  this class seems unnecessary.  However there is a lot of hidden functionality
//  in the experimental AudioEngine for querying information like play duration or
//  file format.  We have made changes to the AudioEngine to expose this information.
//  As AudioEngine is marked as experimental anyway, we felt this was okay.
//
//  Author: Walker White
//  Version: 12/10/15
//
#ifndef __CU_SOUND_H__
#define __CU_SOUND_H__

#include <cocos2d.h>
#include <audio/include/AudioEngine.h>

NS_CC_BEGIN

#define AENG experimental::AudioEngine

#pragma mark -
#pragma mark Sound Class

class SoundLoader;

class CC_DLL Sound : public Ref {
private:
    CC_DISALLOW_COPY_AND_ASSIGN(Sound);
    
protected:
    std::string _source;
    float _duration;
    
public:
#pragma mark Attributes

    const std::string& getSource() const { return _source; }
    
    std::string getSuffix() const {
        size_t pos = _source.rfind(".");
        return (pos == std::string::npos ? "" : _source.substr(pos));
    }
    
    float getDuration() const { return _duration; }
    
    bool  isPreloaded() const { return _duration != AENG::TIME_UNKNOWN; }
    
    
CC_CONSTRUCTOR_ACCESS:
#pragma mark Initializers

    Sound() : Ref(), _source(""), _duration(0.0f) {}
    
    ~Sound() { CCASSERT(_source.empty(), "Sound asset was not unloaded"); }
    
    static Sound* create(std::string source);
    
    static Sound* create(std::string source, float duration);
    
    bool init(std::string source) {
        _source = source; _duration = experimental::AudioEngine::TIME_UNKNOWN;
        return true;
    }
    
    bool init(std::string source, float duration) {
        _source = source; _duration = duration;
        return true;
    }
    
    friend class SoundLoader;
};

NS_CC_END

#endif /* defined(__CU_SOUND_H__) */