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using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
namespace NGS.MeshFusionPro;
[DisallowMultipleComponent]
[RequireComponent(typeof(MeshFusionSource))]
public class SourceTracker : MonoBehaviour
{
[SerializeField]
private MeshFusionSource _source;
[SerializeField]
private bool _isDynamicObject;
[SerializeField]
private Rigidbody _rigidbody;
private IEnumerable<ICombinedObjectPart> _parts;
private ISourceTrackingStrategy _trackingStrategy;
private float _idleTime;
private Action _updateFunc;
public bool IsDynamicObject => _isDynamicObject;
[field: SerializeField]
public TrackingTarget TrackingTarget { get; set; }
[field: SerializeField]
public bool DisableWhenIdle { get; set; } = true;
[field: SerializeField]
[field: Min(0.01f)]
public float MaxIdleTime { get; set; } = 5f;
[field: SerializeField]
public bool WakeUpWhenCollision { get; set; } = true;
[field: SerializeField]
public bool TrackingDestroy { get; set; } = true;
public void WakeUp()
{
base.enabled = true;
_idleTime = 0f;
}
private void Reset()
{
_source = GetComponent<MeshFusionSource>();
_isDynamicObject = _source is DynamicMeshFusionSource;
if (TryGetComponent<Rigidbody>(out _rigidbody))
{
TrackingTarget = TrackingTarget.Rigidbody;
}
}
private void Awake()
{
if (_source == null)
{
_source = GetComponent<MeshFusionSource>();
_isDynamicObject = _source is DynamicMeshFusionSource;
}
_source.onCombineFinished += OnCombineFinished;
base.enabled = false;
}
private void Update()
{
try
{
_updateFunc?.Invoke();
}
catch
{
if (!_isDynamicObject)
{
base.enabled = false;
return;
}
throw;
}
}
private void OnCollisionEnter(Collision collision)
{
if (_isDynamicObject && WakeUpWhenCollision && _parts != null)
{
WakeUp();
}
}
private void OnDestroy()
{
if (!base.gameObject.scene.isLoaded || !TrackingDestroy || _parts == null)
{
return;
}
foreach (ICombinedObjectPart part in _parts)
{
if (part != null && part.Root != null)
{
part.Destroy();
}
}
}
private void OnCombineFinished(MeshFusionSource source, IEnumerable<ICombinedObjectPart> parts)
{
_parts = parts;
_source.onCombineFinished -= OnCombineFinished;
if (!_isDynamicObject)
{
return;
}
_updateFunc = UpdateMoveTracker;
if (TrackingTarget == TrackingTarget.Rigidbody && _rigidbody != null)
{
_trackingStrategy = new RigidbodyTrackingStrategy(_rigidbody, parts.Select((ICombinedObjectPart p) => (DynamicCombinedObjectPart)p).ToArray());
if (DisableWhenIdle)
{
_updateFunc = UpdateMoveTrackerAndCheckIdle;
}
}
else
{
_trackingStrategy = new TransformTrackingStrategy(base.transform, parts.Select((ICombinedObjectPart p) => (DynamicCombinedObjectPart)p).ToArray());
}
base.enabled = true;
}
private void UpdateMoveTracker()
{
_trackingStrategy.OnUpdate();
}
private void UpdateMoveTrackerAndCheckIdle()
{
if (_trackingStrategy.OnUpdate())
{
_idleTime = 0f;
return;
}
_idleTime += Time.deltaTime;
if (_idleTime > MaxIdleTime)
{
_idleTime = 0f;
base.enabled = false;
}
}
}
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