/// <summary>
/// Returns an array of <see cref="Vertex"/> based on the <see cref="Point"/>s contained by the <see cref="IEnumerable{T}"/>
/// </summary>
/// <param name="extended">The extended <see cref="IEnumerable{T}"/> of <see cref="Point"/></param>
/// <returns>An array of <see cref="Vertex"/> based on the <see cref="Point"/>s contained by the <see cref="IEnumerable{T}"/></returns>
public static Vertex[] ToVertexArray(this IEnumerable<Point> extended)
{
Vertex[] vertices;
vertices = new Vertex[extended.Count()];
for(int index = 0; index < vertices.Length; index++)
{
vertices[index] = extended.ElementAt(index);
}
return vertices;
}
/// <summary>
/// Replaces the <see cref="Vertex"/> at the specified index by the specified <see cref="Vertex"/>
/// </summary>
/// <param name="vertexIndex">The index of the vertex to replace</param>
/// <param name="vertex">The <see cref="Vertex"/> used to replace the <see cref="Vertex"/> at the specified index</param>
public void SetVertex(int vertexIndex, Vertex vertex)
{
//Updates the local vertex buffer
this.Vertices[vertexIndex] = vertex;
//Binds the VertexBufferObject
GL.BindBuffer(BufferTarget.ArrayBuffer, this.VertexBufferObjectId);
//Updates the VertexBufferObject
GL.BufferSubData(BufferTarget.ArrayBuffer, new IntPtr(vertexIndex * Vertex.Stride), new IntPtr(Vertex.Stride), new Vertex[] { vertex });
//Unbinds the VertexBufferObject
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
/// <summary>
/// Sets the array of <see cref="Vertex"/> associated with the <see cref="VertexBufferObject"/>
/// </summary>
/// <param name="vertices">The array of <see cref="Vertex"/> to upload to the <see cref="VertexBufferObject"/></param>
public void SetVertices(Vertex[] vertices)
{
//Updates the local vertex buffer
this.Vertices = vertices;
//Binds the VertexBufferObject
GL.BindBuffer(BufferTarget.ArrayBuffer, this.VertexBufferObjectId);
//Updates the VertexBufferObject
GL.BufferSubData(BufferTarget.ArrayBuffer, (IntPtr)0, new IntPtr(vertices.Length * Vertex.Stride), vertices);
//Unbinds the VertexBufferObject
GL.BindBuffer(BufferTarget.ArrayBuffer, 0);
}
