투명디스플레이 연구사업

using UnityEngine;

using System.Collections;

//using Windows.Kinect;

public class BallController : MonoBehaviour 

{

	[Tooltip("Index of the player, tracked by this component. 0 means the 1st player, 1 - the 2nd one, 2 - the 3rd one, etc.")]

	public int playerIndex = 0;

	[Tooltip("The ball game object.")]

	public Transform ballObject;

	[Tooltip("Minimum distance used to consider the ball being thrown.")]

	public float minThrowDistance = 0.3f;

	[Tooltip("Maximum time in seconds, used to consider the ball being thrown.")]

	public float timeThrowLimit = 0.3f;

	[Tooltip("Velocity scale.")]

	public float velocityScale = 5f;

	[Tooltip("GUI-Text to display information messages.")]

	public GUIText infoText;

	public enum BallState : int { Hidden, HandRaise, BallThrow, BallWait }

	[Tooltip("Current state of the ball.")]

	public BallState currentState = BallState.Hidden;

//	public Transform ballP1;

//	public Transform ballP2;

	//public GUIText debugText;

	private KinectManager manager;

	private Quaternion initialRotation = Quaternion.identity;

	private long userId = 0;

    private int jointIndex = -1;

	// variables used for throwing

	private Vector3 lowestPos;

	private Vector3 handPos1, handPos2;

	private float handTime1, handTime2;

	// number of hits

	private int hitPoints = 0;

    void Start()

	{

        if (ballObject)

		{

			initialRotation = ballObject.rotation;

		}

		if (infoText) 

		{

			infoText.text = "Raise hand, throw the ball and try to hit the barrel.";

		}

	}

	void Update () 

	{

		manager = KinectManager.Instance;

		if(manager && manager.IsInitialized())

		{

			userId = manager.GetUserIdByIndex(playerIndex);

			switch (currentState) 

			{

			case BallState.Hidden:

				UpdateBallHide();

				// try to catch

				currentState = BallState.HandRaise;

				break;

			case BallState.HandRaise:

				UpdateHandRaise();

				break;

			case BallState.BallThrow:

				UpdateBallThrow();

               	break;

			case BallState.BallWait:

				break;

			}

		}

		if (infoText) 

		{

			//infoText.text = currentState.ToString();

		}

	}

	private void UpdateBallHide()

	{

		if (ballObject) 

		{

			ballObject.position = new Vector3 (0, 0, -10);

			ballObject.rotation = initialRotation;

			ballObject.GetComponent<Rigidbody>().isKinematic = true;

		}

	}

    private void UpdateHandRaise()

    {

        jointIndex = -1;

		Vector3 vLowestPos = Vector3.zero;

		Vector3 vHandPos = Vector3.zero;

        // check for left hand raise

		if (manager.IsJointTracked(userId, (int)KinectInterop.JointType.ShoulderRight) && manager.IsJointTracked(userId, (int)KinectInterop.JointType.HandLeft))

        {

			vLowestPos = GetJointPositionInv(userId, (int)KinectInterop.JointType.ShoulderRight);

			vHandPos = GetJointPositionInv(userId, (int)KinectInterop.JointType.HandLeft);

			if (vHandPos.y > vLowestPos.y) 

			{

				jointIndex = (int)KinectInterop.JointType.HandLeft;

				lowestPos = vLowestPos;

				handPos1 = vHandPos;

				handTime1 = Time.realtimeSinceStartup;

			}

        }

        // check for right hand raise

		if (manager.IsJointTracked(userId, (int)KinectInterop.JointType.ShoulderLeft) && manager.IsJointTracked(userId, (int)KinectInterop.JointType.HandRight))

        {

			vLowestPos = GetJointPositionInv(userId, (int)KinectInterop.JointType.ShoulderLeft);

			vHandPos = GetJointPositionInv(userId, (int)KinectInterop.JointType.HandRight);

			if (vHandPos.y > vLowestPos.y) 

			{

				jointIndex = (int)KinectInterop.JointType.HandRight;

				lowestPos = vLowestPos;

				handPos1 = vHandPos;

				handTime1 = Time.realtimeSinceStartup;

			}

        }

		if (jointIndex >= 0 && ballObject)

        {

			ballObject.position = vHandPos;

			currentState = BallState.BallThrow;

        }

    }

	private void UpdateBallThrow()

	{

		// check for push

		if (jointIndex >= 0 && manager.IsJointTracked (userId, jointIndex) && GetJointPositionInv(userId, jointIndex).y >= lowestPos.y) 

		{

			handPos2 = GetJointPositionInv(userId, jointIndex);

			handTime2 = Time.realtimeSinceStartup;

			ballObject.position = handPos2;

			Vector3 throwDir = handPos2 - handPos1;

			float throwDist = throwDir.magnitude;

			float throwTime = handTime2 - handTime1;

			if ((throwTime <= timeThrowLimit) && (throwDist >= minThrowDistance) && (handPos2.z > handPos1.z)) 

			{

				// test succeeded - ball was thrown

				float velocity = throwDist / throwTime;

				Debug.Log(string.Format("Dist: {0:F3}; Time: {1:F3}; Velocity: {2:F3}", throwDist, throwTime, velocity));

//				if (ballP1)

//					ballP1.position = handPos1;

//				if (ballP2) 

//				{

//					ballP2.position = handPos2;

//					ballP2.forward = throwDir.normalized;

//				}

				if (ballObject) 

				{

					ballObject.forward = throwDir.normalized;

					Rigidbody rb = ballObject.GetComponent<Rigidbody>();

					if (rb) 

					{

						rb.velocity = throwDir * velocity * velocityScale;

						rb.isKinematic = false;

					}

					currentState = BallState.BallWait;

					StartCoroutine (WaitForBall());

				}

			}

			else if ((handTime2 - handTime1) > timeThrowLimit) 

			{

				// too slow, start new test

				handPos1 = handPos2;

				handTime1 = handTime2;

			}

		} 

		else 

		{

			// throw was cancelled

			currentState = BallState.Hidden;

		}

	}

	private Vector3 GetJointPositionInv(long userId, int jointIndex)

	{

		if (manager)

		{

			Vector3 userPos = manager.GetUserPosition(userId);

			Vector3 jointPos = manager.GetJointPosition(userId, jointIndex);

			Vector3 jointDiff = jointPos - userPos;

			jointDiff.z = -jointDiff.z;

			jointPos = userPos + jointDiff;

			return jointPos;

		}

		return Vector3.zero;

	}

	private IEnumerator WaitForBall()

	{

		// wait 3 seconds

		yield return new WaitForSeconds(3f);

//		if (ballP1)

//			ballP1.position = new Vector3(0, 0, -10);

//		if (ballP2)

//			ballP2.position = new Vector3(0, 0, -10);

		// start over

		currentState = BallState.Hidden;

	}

	// invoked by BarrelTrigger-script, when the barrel was hit by the ball

	public void BarrelWasHit()

	{

		hitPoints++;

		if (infoText) 

		{

			infoText.text = "Barrel hits: " + hitPoints;

		}

	}

}