투명디스플레이 연구사업

using UnityEngine;

using System.Collections;

using System.Collections.Generic;

public class CubePresentationScript : MonoBehaviour

{

	[Tooltip("Camera used for screen-to-world calculations. This is usually the main camera.")]

	public Camera screenCamera;

	[Tooltip("Whether the presentation slides can be changed with gestures (SwipeLeft & SwipeRight).")]

	public bool slideChangeWithGestures = true;

	[Tooltip("Whether the presentation slides can be changed with keys (PgDown & PgUp).")]

	public bool slideChangeWithKeys = true;

	[Tooltip("Speed of spinning, when presentation slides change.")]

	public int spinSpeed = 5;

	[Tooltip("List of the presentation slides.")]

	public List<Texture> slideTextures;

	[Tooltip("List of the side planes, comprising the presentation cube.")]

	public List<GameObject> cubeSides;

	//private int maxSides = 0;

	private int maxTextures = 0;

	private int side = 0;

	private int tex = 0;

	private bool isSpinning = false;

	private int[] hsides = { 0, 1, 2, 3 };  // left, front, right, back

	private int[] vsides = { 4, 1, 5, 3};  // up, front, down, back

	private CubeGestureListener gestureListener;

	private Quaternion initialRotation;

	private int stepsToGo = 0;

	private float rotationStep;

	private Vector3 rotationAxis;

	void Start()

	{

		// hide mouse cursor

		//Cursor.visible = false;

		// by default set the main-camera to be screen-camera

		if (screenCamera == null)

		{

			screenCamera = Camera.main;

		}

		// calculate max slides and textures

		//maxSides = cubeSides.Count;

		maxTextures = slideTextures.Count;

		initialRotation = screenCamera ? Quaternion.Inverse(screenCamera.transform.rotation) * transform.rotation : transform.rotation;

		isSpinning = false;

		tex = 0;

		side = hsides[1];

		if(side < cubeSides.Count && cubeSides[side] && cubeSides[side].GetComponent<Renderer>())

		{

			cubeSides[side].GetComponent<Renderer>().material.mainTexture = slideTextures[tex];

		}

		// get the gestures listener

		gestureListener = CubeGestureListener.Instance;

	}

	void Update()

	{

		// dont run Update() if there is no gesture listener

		if(!gestureListener)

			return;

		if(!isSpinning)

		{

			if(slideChangeWithKeys)

			{

				if(Input.GetKeyDown(KeyCode.PageDown))

					RotateLeft();

				else if(Input.GetKeyDown(KeyCode.PageUp))

					RotateRight();

			}

			if(slideChangeWithGestures && gestureListener)

			{

				if(gestureListener.IsSwipeLeft())

					RotateLeft();

				else if(gestureListener.IsSwipeRight())

					RotateRight();

				else if(gestureListener.IsSwipeUp())

					RotateUp();

			}

		}

		else

		{

			// spin the presentation

			if(stepsToGo > 0)

			{

				//if(Time.realtimeSinceStartup >= nextStepTime)

				{

					if(screenCamera)

						transform.RotateAround(transform.position, screenCamera.transform.TransformDirection(rotationAxis), rotationStep);

					else

						transform.Rotate(rotationAxis * rotationStep, Space.World);

					stepsToGo--;

					//nextStepTime = Time.realtimeSinceStartup + Time.deltaTime;

				}

			}

			else

			{

				Quaternion cubeRotation = Quaternion.Euler(rotationAxis * rotationStep * 90f / spinSpeed) * initialRotation;

				transform.rotation = screenCamera ? screenCamera.transform.rotation * cubeRotation : cubeRotation;

				isSpinning = false;

			}

		}

	}

	// rotates cube left

	private void RotateLeft()

	{

		// set the next texture slide

		tex = (tex + 1) % maxTextures;

		// rotate hsides left

		SetSides(ref hsides, hsides[1], hsides[2], hsides[3], hsides[0]);

		SetSides(ref vsides, -1, hsides[1], -1, hsides[3]);

		side = hsides[1];

		// set the slide on the selected side

		if(side < cubeSides.Count && cubeSides[side] && cubeSides[side].GetComponent<Renderer>())

		{

			cubeSides[side].GetComponent<Renderer>().material.mainTexture = slideTextures[tex];

		}

		// rotate the presentation

		isSpinning = true;

		initialRotation = screenCamera ? Quaternion.Inverse(screenCamera.transform.rotation) * transform.rotation : transform.rotation;

		rotationStep = spinSpeed; // new Vector3(0, spinSpeed, 0);

		rotationAxis = Vector3.up;

		stepsToGo = 90 / spinSpeed;

		//nextStepTime = 0f;

	}

	// rotates cube right

	private void RotateRight()

	{

		// set the previous texture slide

		if(tex <= 0)

			tex = maxTextures - 1;

		else

			tex -= 1;

		// rotate hsides right

		SetSides(ref hsides, hsides[3], hsides[0], hsides[1], hsides[2]);

		SetSides(ref vsides, -1, hsides[1], -1, hsides[3]);

		side = hsides[1];

		// set the slide on the selected side

		if(side < cubeSides.Count && cubeSides[side] && cubeSides[side].GetComponent<Renderer>())

		{

			cubeSides[side].GetComponent<Renderer>().material.mainTexture = slideTextures[tex];

		}

		// rotate the presentation

		isSpinning = true;

		initialRotation = screenCamera ? Quaternion.Inverse(screenCamera.transform.rotation) * transform.rotation : transform.rotation;

		rotationStep = -spinSpeed; // new Vector3(0, -spinSpeed, 0);

		rotationAxis = Vector3.up;

		stepsToGo = 90 / spinSpeed;

		//nextStepTime = 0f;

	}

	// rotates cube up

	private void RotateUp()

	{

		// set the next texture slide

		tex = (tex + 1) % maxTextures;

		// rotate vsides up

		SetSides(ref vsides, vsides[1], vsides[2], vsides[3], vsides[0]);

		SetSides(ref hsides, -1, vsides[1], -1, vsides[3]);

		side = hsides[1];

		// set the slide on the selected side

		if(side < cubeSides.Count && cubeSides[side] && cubeSides[side].GetComponent<Renderer>())

		{

			cubeSides[side].GetComponent<Renderer>().material.mainTexture = slideTextures[tex];

		}

		// rotate the presentation

		isSpinning = true;

		initialRotation = screenCamera ? Quaternion.Inverse(screenCamera.transform.rotation) * transform.rotation : transform.rotation;

		rotationStep = spinSpeed; // new Vector3(spinSpeed, 0, 0);

		rotationAxis = Vector3.right;

		stepsToGo = 90 / spinSpeed;

		//nextStepTime = 0f;

	}

	// sets values of sides' array

	private void SetSides(ref int[] sides, int v0, int v1, int v2, int v3)

	{

		if(v0 >= 0)

		{

			sides[0] = v0;

		}

		if(v1 >= 0)

		{

			sides[1] = v1;

		}

		if(v2 >= 0)

		{

			sides[2] = v2;

		}

		if(v3 >= 0)

		{

			sides[3] = v3;

		}

	}

}