Hololense tutorial herehololens 101第3章: "=>"とは何ですか?第3章GazeGestureManager.csで
:
using UnityEngine;
using UnityEngine.VR.WSA.Input;
public class GazeGestureManager : MonoBehaviour
{
public static GazeGestureManager Instance { get; private set; }
// Represents the hologram that is currently being gazed at.
public GameObject FocusedObject { get; private set; }
GestureRecognizer recognizer;
// Use this for initialization
void Start()
{
Instance = this;
// Set up a GestureRecognizer to detect Select gestures.
recognizer = new GestureRecognizer();
recognizer.TappedEvent += (source, tapCount, ray) =>
{
// Send an OnSelect message to the focused object and its ancestors.
if (FocusedObject != null)
{
FocusedObject.SendMessageUpwards("OnSelect");
}
};
recognizer.StartCapturingGestures();
}
// Update is called once per frame
void Update()
{
// Figure out which hologram is focused this frame.
GameObject oldFocusObject = FocusedObject;
// Do a raycast into the world based on the user's
// head position and orientation.
var headPosition = Camera.main.transform.position;
var gazeDirection = Camera.main.transform.forward;
RaycastHit hitInfo;
if (Physics.Raycast(headPosition, gazeDirection, out hitInfo))
{
// If the raycast hit a hologram, use that as the focused object.
FocusedObject = hitInfo.collider.gameObject;
}
else
{
// If the raycast did not hit a hologram, clear the focused object.
FocusedObject = null;
}
// If the focused object changed this frame,
// start detecting fresh gestures again.
if (FocusedObject != oldFocusObject)
{
recognizer.CancelGestures();
recognizer.StartCapturingGestures();
}
}
}
私は本当にこの行を理解していない:
recognizer.TappedEvent += (source, tapCount, ray) =>
=>
オペレータと何がある理由は、内部()
は何ですかのためですか?