C++ DeviceRef::isConnected方法代码示例

void LeapPalmDirectionApp::update()
{
	if ( mLeap && mLeap->isConnected() )
	{
		mLeap->update();
	}
}

// Runs update logic
void LeapApp::update()
{
	// Update frame rate
	mFrameRate = getAverageFps();

	// Toggle fullscreen
	if ( mFullScreen != isFullScreen() ) {
		setFullScreen( mFullScreen );
	}

	// Update device
	if ( mLeap && mLeap->isConnected() ) {		
		mLeap->update();
	}
}

void BrainbowApp::update()
{
    //LEAP
    if ( mLeap && mLeap->isConnected() ) {
		mLeap->update();
	}
    //GET HAND
    for ( LeapSdk::HandMap::const_iterator handIter = mHands.begin(); handIter != mHands.end(); ++handIter ) {
		const LeapSdk::Hand& hand = handIter->second;
        //        cout << hand.getPosition().x << endl;
        //        cout << hand.getDirection();
        
        scaledX = (hand.getPosition().x *(getWindowWidth()/400))+(getWindowWidth()/2);
        scaledY = (-hand.getPosition().y*(getWindowHeight()/400) + getWindowHeight())*2.5 - 400;
        scaledZ = hand.getPosition().z*2+300;
        handPos = Vec3f(scaledX, scaledY, scaledZ);
    }
    
    //AUDIO
    //    mAudio.update();
    
    
    //SCENES
    if (sceneOne)
        scene1();
    if (sceneTwo)
        scene2();
    
    
    //LIGHT
    
    mLight->lookAt( handPos, Vec3f::zero() );
    
    //ROTATE DIAMOND
    if (gong)
        mDiamond.getModelMatrix().rotate( Vec3f( 0.0f, 0.5f, 0), 0.01f );

    
}

void ChargesApp::update()
{
	mFps = getAverageFps();

	// Update device
	if ( mLeap && mLeap->isConnected() )
	{
		mLeap->update();
	}

	vector< int32_t > currentFingersIds;

	for ( const std::pair< int32_t, LeapSdk::Hand > hand : mHands )
	{
		const LeapSdk::FingerMap &fingers = hand.second.getFingers();
		for ( const auto &fkv : fingers )
		{
			int32_t id = fkv.first;
			const LeapSdk::Finger &finger = fkv.second;

			currentFingersIds.push_back( id );

			// new finger?
			if ( mActiveFingers.find( id ) == mActiveFingers.end() )
			{
				mActiveFingers[ id ] = mTimestamp;
				mEffectCharge.addCursor( id, 0.f, 0.f, 1.f ); // init with (0, 0), will be updated below
			}

			// update finger
			const LeapSdk::ScreenMap &screens = mLeap->getScreens();
			if ( screens.begin() != screens.end() )
			{
				mActiveFingers[ id ] = mTimestamp;

				const LeapSdk::Screen &screen = screens.begin()->second;
				Vec3f normPos;
				screen.intersects( finger, normPos, true, 1.5f ); // normalized screen coordinates with 1.5 clamp ratio
				Vec2f fingertip = normPos.xy() * Vec2f( mFbo.getSize() );

				Vec3f screenPos;
				screen.intersects( finger, screenPos, false, 1.5f ); // screen coordinates with 1.5 clamp ratio
				float d = screenPos.distance( finger.getPosition() );
				const float dMin = 50.f;
				const float dMax = 500.f;
				const float sMin = 1.f;
				const float sMax = 100.f;
				d = math< float >::clamp( d, dMin, dMax );
				float strength = lmap( d, dMin, dMax, sMax, sMin );

				mEffectCharge.updateCursor( id, fingertip.x, fingertip.y, strength );
			}
		}
	}

	// erase disappeared fingers
	int64_t disappearThr = mFingerDisapperanceThreshold * 1000000;
	for ( auto it = mActiveFingers.begin(); it != mActiveFingers.end(); )
	{
		int32_t id = it->first;
		if ( find( currentFingersIds.begin(), currentFingersIds.end(), id ) == currentFingersIds.end() )
		{
			// seen earlier than the threshold?
			if ( mTimestamp - it->second > disappearThr )
			{
				mEffectCharge.removeCursor( id );
				it = mActiveFingers.erase( it );
			}
			else
			{
				it++;
			}
		}
		else
		{
			it++;
		}
	}
}

// Runs update logic
void UiApp::update()
{
	// Update frame rate
	mFrameRate = getAverageFps();

	// Toggle fullscreen
	if ( mFullScreen != isFullScreen() ) {
		setFullScreen( mFullScreen );
	}

	// Update device
	if ( mLeap && mLeap->isConnected() ) {		
		mLeap->update();
	}
	
	// Interact with first hand
	if ( mHands.empty() ) {
		mCursorType		= CursorType::NONE;
	} else {
		const Hand& hand = mHands.begin()->second;
		
		// Update cursor position
		mCursorPositionTarget	= warp( hand.getPosition() );
		if ( mCursorType == CursorType::NONE ) {
			mCursorPosition = mCursorPositionTarget;
		}
		
		// Choose cursor type based on number of exposed fingers
		switch ( hand.getFingers().size() ) {
			case 0:
				mCursorType	= CursorType::GRAB;
				break;
			case 1:
				mCursorType	= CursorType::TOUCH;
				break;
			default:
				mCursorType	= CursorType::HAND;
				break;
		}
	}
	
	// Smooth cursor animation
	mCursorPosition = mCursorPosition.lerp( 0.21f, mCursorPositionTarget );
	mCursorPosition.z = 0.0f;
	
	// Hit buttons
	for ( size_t i = 0; i < 3; ++i ) {
		mButtonState[ i ] = false;
		if ( mCursorType == CursorType::TOUCH &&
			mCursorPosition.distance( mButtonPosition[ i ] ) < (float)mButton[ 0 ].getSize().length() * 0.5f ) {
			mButtonState[ i ] = true;
		}
	}
	
	// Slider
	if ( mCursorType == CursorType::GRAB &&
		math<float>::abs( mCursorPosition.x - mSliderPosition.x ) < (float)mSlider.getWidth() * 0.5f &&
		math<float>::abs( mCursorPosition.y - mSliderPosition.y ) < (float)mSlider.getHeight() * 0.5f ) {
		float x1			= mTrackPosition.x;
		float x2			= mTrackPosition.x + (float)( mTrack.getWidth() - mSlider.getWidth() );
		mSliderPosition.x	= math<float>::clamp( mCursorPosition.x, x1, x2 );
	}
}

void _TBOX_PREFIX_App::update()
{	 
	if ( mLeap && mLeap->isConnected() ) {		
		mLeap->update();
	}
}

// Runs update logic
void GestureApp::update()
{
	// Update frame rate
	mFrameRate = getAverageFps();

	// Toggle fullscreen
	if ( mFullScreen != isFullScreen() ) {
		setFullScreen( mFullScreen );
	}

	// Update device
	if ( mLeap && mLeap->isConnected() ) {		
		mLeap->update();
	}
	
	const vector<Leap::Gesture>& gestures = mFrame.getGestures();
	for ( vector<Leap::Gesture>::const_iterator iter = gestures.begin(); iter != gestures.end(); ++iter ) {
		Gesture::Type type = iter->type();
		if ( type == Gesture::Type::TYPE_CIRCLE ) {
			
			// Cast to circle gesture
			const Leap::CircleGesture& gesture = (Leap::CircleGesture)*iter;
			
			// Control dial
			mDialBrightness	= 1.0f;
			mDialValueDest	= gesture.progress();
			
		} else if ( type == Gesture::Type::TYPE_KEY_TAP ) {
			
			// Cast to circle gesture and read data
			const Leap::KeyTapGesture& gesture = (Leap::KeyTapGesture)*iter;
			Vec2f center	= warpVector( fromLeapVector( gesture.position() ) );
			center			-= mOffset;
			
			// Press key
			for ( vector<Key>::iterator iter = mKeys.begin(); iter != mKeys.end(); ++iter ) {
				if ( iter->mBounds.contains( center ) ) {
					iter->mBrightness = 1.0f;
					break;
				}
			}
			
		} else if ( type == Gesture::Type::TYPE_SCREEN_TAP ) {
			
			// Turn background white for screen tap
			mBackgroundBrightness = 1.0f;
			
		} else if ( type == Gesture::Type::TYPE_SWIPE ) {
			
			// Cast to swipe gesture and read data
			const Leap::SwipeGesture& gesture = (Leap::SwipeGesture)*iter;
			ci::Vec2f a	= warpVector( fromLeapVector( gesture.startPosition() ) );
			ci::Vec2f b	= warpVector( fromLeapVector( gesture.position() ) );
			
			// Update swipe position
			mSwipeBrightness	= 1.0f;
			if ( gesture.state() == Gesture::State::STATE_STOP ) {
				mSwipePosDest	= b.x < a.x ? 0.0f : 1.0f;
			} else {
				float step		= mSwipeStep;
				mSwipePosDest	+= b.x < a.x ? -step : step;
			}
			mSwipePosDest		= math<float>::clamp( mSwipePosDest, 0.0f, 1.0f );
		}
	}
	
	// UI animation
	mDialValue				= lerp( mDialValue, mDialValueDest, mDialSpeed );
	mSwipePos				= lerp( mSwipePos, mSwipePosDest, mSwipePosSpeed );
	mBackgroundBrightness	*= mFadeSpeed;
	mDialBrightness			*= mFadeSpeed;
	mSwipeBrightness		*= mFadeSpeed;
	for ( vector<Key>::iterator iter = mKeys.begin(); iter != mKeys.end(); ++iter ) {
		iter->mBrightness *= mFadeSpeed;
	}
}