투명디스플레이 연구사업

using UnityEngine;

using System.Collections;

using System.Collections.Generic;

public class LinePainter : MonoBehaviour 

{

	[Tooltip("Line renderer used for the line drawing.")]

	public LineRenderer linePrefab;

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

	public GUIText infoText;

	private HandOverlayer handOverlayer = null;

	private List<GameObject> linesDrawn = new List<GameObject>();

	private LineRenderer currentLine;

	private int lineVertexIndex = 2;

	void Start()

	{

		handOverlayer = GetComponent<HandOverlayer>();

	}

	void Update()

	{

		if(Input.GetKeyDown(KeyCode.U))

		{

			// U-key means Undo

			DeleteLastLine();

		}

		// display info message when a user is detected

		KinectManager manager = KinectManager.Instance;

		if(manager && manager.IsInitialized() && manager.IsUserDetected())

		{

			if(infoText)

			{

				infoText.text = "Grip hand to start drawing. Press [U] to undo the last line.";

			}

		}

		if(currentLine == null &&

		   (handOverlayer && (handOverlayer.GetLastHandEvent() == InteractionManager.HandEventType.Grip)))

		{

			// start drawing lines

			currentLine = Instantiate(linePrefab).GetComponent<LineRenderer>();

			currentLine.name = "Line" + linesDrawn.Count;

			currentLine.transform.parent = transform;

			Vector3 cursorPos = handOverlayer.GetCursorPos();

			cursorPos.z = Camera.main.nearClipPlane;

			Vector3 cursorSpacePos = Camera.main.ViewportToWorldPoint(cursorPos);

			currentLine.SetPosition(0, cursorSpacePos);

			currentLine.SetPosition(1, cursorSpacePos);

			lineVertexIndex = 2;

			linesDrawn.Add(currentLine.gameObject);

			StartCoroutine(DrawLine());

		}

		if (currentLine != null &&

		    (handOverlayer != null && (handOverlayer.GetLastHandEvent() == InteractionManager.HandEventType.Release)))

		{

			// end drawing lines

			currentLine = null;

		}

	}

	// undo the last drawn line

	public void DeleteLastLine()

	{

		if (linesDrawn.Count > 0)

		{

			GameObject goLastLine = linesDrawn[linesDrawn.Count-1];

			linesDrawn.RemoveAt(linesDrawn.Count-1);

			Destroy(goLastLine);

		}

	}

	// continue drawing line

	IEnumerator DrawLine()

	{

		while(handOverlayer && (handOverlayer.GetLastHandEvent() == InteractionManager.HandEventType.Grip))

		{

			yield return new WaitForEndOfFrame();

			if (currentLine != null)

			{

				lineVertexIndex++;

				currentLine.SetVertexCount(lineVertexIndex);

				Vector3 cursorPos = handOverlayer.GetCursorPos();

				cursorPos.z = Camera.main.nearClipPlane;

				Vector3 cursorSpacePos = Camera.main.ViewportToWorldPoint(cursorPos);

				currentLine.SetPosition(lineVertexIndex - 1, cursorSpacePos);

			}

		}

	}

}