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using System.Collections.Generic;
using UnityEngine;
namespace NGS.MeshFusionPro;
public class LODMeshFusionSource : MeshFusionSource
{
[SerializeField]
[HideInInspector]
private LODGroup _group;
private LODGroupCombineSource _source;
private CombinedLODGroupPart _part;
private Bounds? _savedBounds;
public override bool TryGetBounds(ref Bounds bounds)
{
if (_source != null)
{
bounds = _source.Bounds;
return true;
}
if (_part != null)
{
bounds = _part.Bounds;
return true;
}
if (_savedBounds.HasValue)
{
bounds = _savedBounds.Value;
return true;
}
if (base.IsIncompatible)
{
return false;
}
LOD[] lODs = _group.GetLODs();
bounds = new Bounds(base.transform.position, Vector3.zero);
for (int i = 0; i < lODs.Length; i++)
{
Renderer[] renderers = lODs[i].renderers;
for (int j = 0; j < renderers.Length; j++)
{
if (!(renderers[j] == null))
{
bounds.Encapsulate(renderers[j].bounds);
}
}
}
_savedBounds = bounds;
return true;
}
protected override void OnSourceCombinedInternal(ICombinedObject root, ICombinedObjectPart part)
{
_part = (CombinedLODGroupPart)part;
}
protected override bool CheckCompatibilityAndGetComponents(out string incompatibilityReason)
{
if (_group == null)
{
_group = GetComponent<LODGroup>();
}
if (_group == null)
{
incompatibilityReason = "LODGroup not found";
return false;
}
incompatibilityReason = "";
MeshFilter filter = null;
Mesh mesh = null;
LOD[] lODs = _group.GetLODs();
for (int i = 0; i < lODs.Length; i++)
{
Renderer[] renderers = lODs[i].renderers;
for (int j = 0; j < renderers.Length; j++)
{
MeshRenderer renderer = renderers[j] as MeshRenderer;
if (!(renderer == null) && !CanCreateCombineSource(renderer.gameObject, ref incompatibilityReason, ref renderer, ref filter, ref mesh))
{
return false;
}
}
}
return true;
}
protected override void CreateSources()
{
_source = new LODGroupCombineSource(_group);
}
protected override IEnumerable<ICombineSource> GetCombineSources()
{
if (_source != null)
{
yield return _source;
}
}
protected override IEnumerable<ICombinedObjectPart> GetCombinedParts()
{
if (_part != null)
{
yield return _part;
}
}
protected override void ClearSources()
{
if (_source != null)
{
_source = null;
}
}
protected override void ClearParts()
{
if (_part != null)
{
_part = null;
}
}
protected override void ToggleComponents(bool enabled)
{
LOD[] lODs = _group.GetLODs();
for (int i = 0; i < lODs.Length; i++)
{
Renderer[] renderers = lODs[i].renderers;
for (int j = 0; j < renderers.Length; j++)
{
renderers[j].enabled = enabled;
}
}
_group.enabled = enabled;
}
}
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