public void UpdateTerrainChunk()
{
if (_hasReceivedMapData)
{
float _distanceFromNearEdge = Mathf.Sqrt(_bounds.SqrDistance(viewerPosition));
bool _isVisible = _distanceFromNearEdge <= maxViewDistance;
if (_isVisible)
{
int _lodIndex = 0;
for (int i = 0; i < _detailLevels.Length - 1; i++)
{
if (_distanceFromNearEdge > _detailLevels[i].distanceThreashold)
{
_lodIndex = i + 1;
}
else
{
break;
}
}
if (_lodIndex != _previousLodIndex)
{
LODetail _lodMesh = _meshLod[_lodIndex];
if (_lodMesh.hasMesh)
{
_meshFilter.mesh = _lodMesh.mesh;
_previousLodIndex = _lodIndex;
}
else if (!_lodMesh.hasRequestedMesh)
{
_lodMesh.RequestMesh(_mapData);
}
}
}
SetVisible(_isVisible);
}
}
public MapChunk(Vector2 _coordinates, int _size, LODInfo[] _lodLevels, Transform _parent, Material _material)
{
_positionV2 = _coordinates * _size;
_bounds = new Bounds(_positionV2, Vector2.one * _size);
Vector3 _positionV3 = new Vector3(_positionV2.x, 0, _positionV2.y);
_detailLevels = _lodLevels;
_go = new GameObject("Terrain Chunk");
_meshRenderer = _go.AddComponent <MeshRenderer>();
_meshFilter = _go.AddComponent <MeshFilter>();
_meshRenderer.material = _material;
_go.transform.position = _positionV3;
_go.transform.parent = _parent;
SetVisible(false);
_meshLod = new LODetail[_detailLevels.Length];
for (int i = 0; i < _detailLevels.Length; i++)
{
_meshLod[i] = new LODetail(_detailLevels[i].lod, UpdateTerrainChunk);
}
_generator.RequestMapData(_positionV2, OnMapDataReceived);
}
