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99 lines
2.7 KiB
99 lines
2.7 KiB
namespace Oculus.Platform.Samples.VrBoardGame
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{
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using UnityEngine;
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using UnityEngine.UI;
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using UnityEngine.EventSystems;
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// This is a helper class for selecting objects that the user is looking at.
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// It will select UI objects that have an attach 3d collision volume and helps
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// the GameController locate GamePieces and GamePositions.
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public class EyeCamera : MonoBehaviour
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{
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// the EventSystem used by the UI elements
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[SerializeField] private EventSystem m_eventSystem = null;
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// the GameController to notify
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[SerializeField] private GameController m_gameController = null;
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// a tine ball in the distance to debug where the user is looking
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[SerializeField] private SphereCollider m_gazeTracker = null;
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// the current Button, if any, being looked at
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private Button m_currentButton;
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// the current GamePiece, if any, being looked at
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private GamePiece m_currentPiece;
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// the current BoardPosition, if any, being looked at
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private BoardPosition m_boardPosition;
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void Update()
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{
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RaycastHit hit;
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Button button = null;
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GamePiece piece = null;
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BoardPosition pos = null;
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// do a forward raycast to see if we hit a selectable object
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bool hitSomething = Physics.Raycast(transform.position, transform.forward, out hit, 50f);
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if (hitSomething) {
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button = hit.collider.GetComponent<Button>();
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piece = hit.collider.GetComponent<GamePiece>();
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pos = hit.collider.GetComponent<BoardPosition>();
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}
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if (m_currentButton != button)
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{
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if (m_eventSystem != null)
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{
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m_eventSystem.SetSelectedGameObject(null);
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}
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m_currentButton = button;
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if (m_currentButton != null)
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{
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m_currentButton.Select();
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}
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}
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if (m_currentPiece != piece)
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{
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if (m_currentPiece != null)
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{
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m_gameController.StoppedLookingAtPiece();
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}
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m_currentPiece = piece;
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if (m_currentPiece != null)
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{
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m_gameController.StartedLookingAtPiece(m_currentPiece);
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}
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}
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if (m_boardPosition != pos)
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{
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m_boardPosition = pos;
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if (m_boardPosition != null)
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{
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m_gameController.StartedLookingAtPosition(m_boardPosition);
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}
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}
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// clear the potential move if they gaze off the board
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if (hit.collider == m_gazeTracker)
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{
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m_gameController.ClearProposedMove();
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}
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// moves the camera with the mouse - very useful for debugging in to 2D mode.
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if (Input.GetButton("Fire2"))
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{
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var v = Input.GetAxis("Mouse Y");
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var h = Input.GetAxis("Mouse X");
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transform.rotation *= Quaternion.AngleAxis(h, Vector3.up);
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transform.rotation *= Quaternion.AngleAxis(-v, Vector3.right);
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Vector3 eulers = transform.eulerAngles;
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eulers.z = 0;
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transform.eulerAngles = eulers;
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}
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}
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}
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}
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