import SimpleOpenNI.*;

SimpleOpenNI kinect;

void setup() {
	kinect = new SimpleOpenNI(this);
	kinect.enableDepth();
	kinect.enableUser();
	kinect.enableRGB();
	kinect.alternativeViewPointDepthToImage();
	background(255,0,0);
	size(kinect.depthWidth(),kinect.depthHeight());
}

void draw() {
	background(255, 1);
	kinect.update();
	//image(kinect.userImage(),0,0);
	int[] userList = kinect.getUsers();
	for(int i=0;i<userList.length;i++)
	{
		if(kinect.isTrackingSkeleton(userList[i]))
		{
			drawSkeleton(userList[i]);
		}
	}
}
void drawSkeleton(int id)
{
	PVector headPosition = new PVector();
	float confidence=kinect.getJointPositionSkeleton(id,SimpleOpenNI.SKEL_HEAD,headPosition);
	strokeWeight(5);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_HEAD,SimpleOpenNI.SKEL_NECK);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_NECK,SimpleOpenNI.SKEL_RIGHT_SHOULDER);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_NECK,SimpleOpenNI.SKEL_LEFT_SHOULDER);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_NECK,SimpleOpenNI.SKEL_LEFT_HIP);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_NECK,SimpleOpenNI.SKEL_RIGHT_HIP);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_LEFT_HIP,SimpleOpenNI.SKEL_LEFT_KNEE);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_RIGHT_HIP,SimpleOpenNI.SKEL_RIGHT_KNEE);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_LEFT_SHOULDER,SimpleOpenNI.SKEL_LEFT_ELBOW);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_LEFT_ELBOW,SimpleOpenNI.SKEL_LEFT_HAND);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_RIGHT_SHOULDER,SimpleOpenNI.SKEL_RIGHT_ELBOW);
	kinect.drawLimb(id,SimpleOpenNI.SKEL_RIGHT_ELBOW,SimpleOpenNI.SKEL_RIGHT_HAND);
	//ellipse(headPosition.x, headPosition.y, 50, 50);
	PVector projKopPosition= new PVector();

	kinect.convertRealWorldToProjective(headPosition,projKopPosition);
	ellipse(projKopPosition.x,projKopPosition.y, 50, 50);

	float ellipseSize = map(projKopPosition.z,600,4000,100,10);
	ellipse(projKopPosition.x, projKopPosition.y, ellipseSize, ellipseSize);
}
void onNewUser(SimpleOpenNI context, int userId)
{
	context.startTrackingSkeleton(userId);
}