/// <summary>
/// Creates a new Buffermesh with only polygon data
/// </summary>
/// <param name="corners">Triangle corner data</param>
/// <param name="triangleList">Triangle index list</param>
/// <param name="material">Material</param>
public BufferMesh(BufferCorner[] corners, uint[] triangleList, BufferMaterial material, ushort vertexReadOffset = 0)
{
Corners = corners == null || corners.Length == 0 ? throw new ArgumentNullException(nameof(corners), "Corners can't be null or empty") : corners;
TriangleList = triangleList != null && triangleList.Length == 0 ? throw new ArgumentNullException(nameof(triangleList), "Triangle list cant be empty") : triangleList;
Material = material ?? throw new ArgumentNullException(nameof(material), "Material can't be null");
VertexReadOffset = vertexReadOffset;
}
/// <summary>
/// Reads a buffer mesh from a byte array
/// </summary>
/// <param name="source">Byte source</param>
/// <param name="address">Address at which the buffermesh is located</param>
public static BufferMesh Read(byte[] source, uint address, uint imageBase)
{
BufferVertex[] vertices = new BufferVertex[source.ToUInt16(address)];
bool continueWeight = source.ToUInt16(address + 2) != 0;
BufferCorner[] corners = new BufferCorner[source.ToUInt32(address + 4)];
uint[] triangles = new uint[source.ToUInt32(address + 8)];
address += 12;
BufferMaterial material = BufferMaterial.Read(source, ref address);
uint tmpAddr = source.ToUInt32(address) - imageBase;
for (int i = 0; i < vertices.Length; i++)
{
vertices[i] = BufferVertex.Read(source, ref tmpAddr);
}
tmpAddr = source.ToUInt32(address += 4) - imageBase;
for (int i = 0; i < corners.Length; i++)
{
corners[i] = BufferCorner.Read(source, ref tmpAddr);
}
tmpAddr = source.ToUInt32(address += 4) - imageBase;
for (int i = 0; i < triangles.Length; i++)
{
triangles[i] = source.ToUInt32(tmpAddr);
tmpAddr += 4;
}
if (vertices.Length == 0)
{
return(new BufferMesh(corners, triangles, material));
}
else if (corners.Length == 0)
{
return(new BufferMesh(vertices, continueWeight));
}
else
{
return(new BufferMesh(vertices, continueWeight, corners, triangles, material));
}
}