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using System;
using UnityEngine;
namespace NGS.MeshFusionPro;
public class LODGroupCombineSource : ICombineSource<CombinedLODGroup, CombinedLODGroupPart>, ICombineSource
{
private Bounds _bounds;
private LODGroupSettings _settings;
private CombineSource[][] _sources;
public Vector3 Position { get; private set; }
public Bounds Bounds => _bounds;
public LODGroup LODGroup { get; private set; }
public LODGroupSettings Settings => _settings;
public CombineSource[][] BaseSources => _sources;
public event Action<ICombinedObject, ICombinedObjectPart> onCombined;
public event Action<ICombinedObject, string> onCombineError;
public event Action<ICombinedObject> onCombineFailed;
public event Action<CombinedLODGroup, CombinedLODGroupPart> onCombinedTyped;
public event Action<CombinedLODGroup, string> onCombineErrorTyped;
public event Action<CombinedLODGroup> onCombineFailedTyped;
public LODGroupCombineSource(LODGroup group)
{
LODGroup = group;
Position = group.transform.position;
LOD[] lODs = group.GetLODs();
_settings = new LODGroupSettings(group);
_sources = new CombineSource[_settings.lodCount][];
_bounds = new Bounds(group.localReferencePoint + Position, Vector3.zero);
for (int i = 0; i < lODs.Length; i++)
{
Renderer[] renderers = lODs[i].renderers;
CreateSourcesArray(i, renderers);
FillSources(i, renderers);
}
}
public void Combined(CombinedLODGroup root, CombinedLODGroupPart part)
{
this.onCombined?.Invoke(root, part);
this.onCombinedTyped?.Invoke(root, part);
}
public void CombineError(CombinedLODGroup root, string errorMessage)
{
if (this.onCombineError == null && this.onCombineErrorTyped == null)
{
Debug.Log("Combine error occured : " + root.name + ", reason : " + errorMessage);
return;
}
this.onCombineError?.Invoke(root, errorMessage);
this.onCombineErrorTyped?.Invoke(root, errorMessage);
}
public void CombineFailed(CombinedLODGroup root)
{
this.onCombineFailed?.Invoke(root);
this.onCombineFailedTyped?.Invoke(root);
}
private void CreateSourcesArray(int level, Renderer[] renderers)
{
int num = 0;
for (int i = 0; i < renderers.Length; i++)
{
if (!(renderers[i] == null))
{
num += renderers[i].sharedMaterials.Length;
}
}
_sources[level] = new CombineSource[num];
}
private void FillSources(int level, Renderer[] renderers)
{
int num = 0;
for (int i = 0; i < renderers.Length; i++)
{
MeshRenderer meshRenderer = (MeshRenderer)renderers[i];
if (!(meshRenderer == null))
{
Mesh sharedMesh = meshRenderer.GetComponent<MeshFilter>().sharedMesh;
for (int j = 0; j < sharedMesh.subMeshCount; j++)
{
_sources[level][num] = new CombineSource(sharedMesh, meshRenderer, j);
num++;
}
_bounds.Encapsulate(meshRenderer.bounds);
}
}
}
}
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