namespace Engine.Asset.Mesh.Loader;

public interface IMeshLoader
{
    public Mesh LoadMesh(string path, MeshLoaderParameters parameters = MeshLoaderParameters.Default);

    public static Mesh Optimize(Mesh mesh)
    {
        var optimizedMesh = new Mesh();
        var vertexMap = new Dictionary<Mesh.Vertex, uint>();
        uint index = 0;

        foreach (var vertex in mesh.Vertices)
        {
            if (vertexMap.TryGetValue(vertex, out var existingIndex))
                optimizedMesh.IndicesInternal.Add(existingIndex);
            else
            {
                vertexMap.Add(vertex, index);
                optimizedMesh.VerticesInternal.Add(vertex);
                optimizedMesh.IndicesInternal.Add(index);

                index++;
            }
        }

        return optimizedMesh;
    }
}