axmol/cocos2dx/platform/android/CCAccelerometer.cpp

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#include "CCAccelerometer.h"
#include "jni/Java_org_cocos2dx_lib_Cocos2dxHelper.h"
#include <stdio.h>
#include <android/log.h>

#define TG3_GRAVITY_EARTH                    (9.80665f)
#define  LOG_TAG    "CCAccelerometer_android"
#define  LOGD(...)  __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)

namespace cocos2d
{
    CCAccelerometer::CCAccelerometer() : _accelDelegate(NULL)
    {
    }

    CCAccelerometer::~CCAccelerometer() 
    {

    }

    void CCAccelerometer::setDelegate(CCAccelerometerDelegate* pDelegate) 
    {
        _accelDelegate = pDelegate;

        if (pDelegate)
        {        
            enableAccelerometerJNI();
        }
        else
        {
            disableAccelerometerJNI();
        }
    }

    void CCAccelerometer::setAccelerometerInterval(float interval) 
    {
        setAccelerometerIntervalJNI(interval);
    }


    void CCAccelerometer::update(float x, float y, float z, long sensorTimeStamp) 
    {
        if (_accelDelegate)
        {
            _accelerationValue.x = -((double)x / TG3_GRAVITY_EARTH);
            _accelerationValue.y = -((double)y / TG3_GRAVITY_EARTH);
            _accelerationValue.z = -((double)z / TG3_GRAVITY_EARTH);
            _accelerationValue.timestamp = (double)sensorTimeStamp;

            _accelDelegate->didAccelerate(&_accelerationValue);
        }    
    }
} // end of namespace cococs2d