Thorbjoern
118 lines
4.2 KiB
C#
118 lines
4.2 KiB
C#
using System;
|
|
using UnityEngine;
|
|
using UnityEngine.Events;
|
|
|
|
namespace XRMultiplayer
|
|
{
|
|
/// <summary>
|
|
/// Fires events when this object is is within the field of view of the gaze transform. This is currently used to
|
|
/// hide and show tooltip callouts on the controllers when the controllers are within the field of view.
|
|
/// </summary>
|
|
public class CalloutGazeController : MonoBehaviour
|
|
{
|
|
[SerializeField, Tooltip("The transform which the forward direction will be used to evaluate as the gaze direction.")]
|
|
protected Transform m_GazeTransform;
|
|
|
|
[SerializeField, Tooltip("Threshold for the dot product when determining if the Gaze Transform is facing this object. The lower the threshold, the wider the field of view."), Range(0.0f, 1.0f)]
|
|
protected float m_FacingThreshold = 0.85f;
|
|
|
|
[SerializeField, Tooltip("Events fired when the Gaze Transform begins facing this game object")]
|
|
protected UnityEvent m_FacingEntered;
|
|
|
|
[SerializeField, Tooltip("Events fired when the Gaze Transform stops facing this game object")]
|
|
protected UnityEvent m_FacingExited;
|
|
|
|
[SerializeField, Tooltip("Distance threshold for movement in a single frame that determines a large movement that will trigger Facing Exited events.")]
|
|
float m_LargeMovementDistanceThreshold = 0.05f;
|
|
|
|
[SerializeField, Tooltip("Cool down time after a large movement for Facing Entered events to fire again.")]
|
|
float m_LargeMovementCoolDownTime = 0.25f;
|
|
|
|
[SerializeField, Tooltip("Use Distance Threshold")]
|
|
bool m_UseDistanceThreshold = false;
|
|
[SerializeField, Tooltip("Distance threshold to stop applying Facing Events")]
|
|
float m_MaxDistanceThreshold = 10.0f;
|
|
|
|
bool m_IsFacing;
|
|
float m_LargeMovementCoolDown;
|
|
Vector3 m_LastPosition;
|
|
|
|
void Start()
|
|
{
|
|
if (!m_GazeTransform)
|
|
m_GazeTransform = Camera.main.transform;
|
|
}
|
|
|
|
protected virtual void Update()
|
|
{
|
|
CheckLargeMovement();
|
|
|
|
if (m_LargeMovementCoolDown < m_LargeMovementCoolDownTime)
|
|
return;
|
|
|
|
CheckFacing();
|
|
}
|
|
|
|
void CheckFacing()
|
|
{
|
|
if (!m_GazeTransform)
|
|
return;
|
|
|
|
if (m_UseDistanceThreshold)
|
|
{
|
|
float currentDistance = Vector3.Distance(m_GazeTransform.position, transform.position);
|
|
if (currentDistance > m_MaxDistanceThreshold)
|
|
{
|
|
if (m_IsFacing)
|
|
{
|
|
FacingExited();
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
var dotProduct = Vector3.Dot(m_GazeTransform.forward, (transform.position - m_GazeTransform.position).normalized);
|
|
if (dotProduct > m_FacingThreshold && !m_IsFacing)
|
|
FacingEntered();
|
|
else if (dotProduct < m_FacingThreshold && m_IsFacing)
|
|
FacingExited();
|
|
}
|
|
|
|
void CheckLargeMovement()
|
|
{
|
|
// Check if there is large movement
|
|
var currentPosition = transform.position;
|
|
var positionDelta = Mathf.Abs(Vector3.Distance(m_LastPosition, currentPosition));
|
|
if (positionDelta > m_LargeMovementDistanceThreshold)
|
|
{
|
|
m_LargeMovementCoolDown = 0.0f;
|
|
FacingExited();
|
|
}
|
|
m_LargeMovementCoolDown += Time.deltaTime;
|
|
m_LastPosition = currentPosition;
|
|
}
|
|
|
|
void FacingEntered()
|
|
{
|
|
m_IsFacing = true;
|
|
m_FacingEntered.Invoke();
|
|
}
|
|
|
|
void FacingExited()
|
|
{
|
|
m_IsFacing = false;
|
|
m_FacingExited.Invoke();
|
|
}
|
|
|
|
public void CheckPointerExit()
|
|
{
|
|
var dotProduct = Vector3.Dot(m_GazeTransform.forward, (transform.position - m_GazeTransform.position).normalized);
|
|
float currentDistance = Vector3.Distance(m_GazeTransform.position, transform.position);
|
|
if (dotProduct < m_FacingThreshold || (m_UseDistanceThreshold && currentDistance > m_MaxDistanceThreshold))
|
|
{
|
|
FacingExited();
|
|
}
|
|
}
|
|
}
|
|
}
|