//'class Model' - loads a mesh from file and stores it
public Model(Device device, string folderPath, string fileName)
{
	GraphicsBuffer outputAdjacency = new GraphicsBuffer();
	MaterialList ml = new MaterialList();
	EffectInstanceList el = new EffectInstanceList();
	mesh = new Mesh(device, folderPath + fileName, MeshFlags.Managed, outputAdjacency, ml, el);

	textures = new Texture[mesh.AttributeCount];
	materials = new Material[mesh.AttributeCount];

	for (int i = 0; i < mesh.AttributeCount; i++)
	{
		materials = ml.Material;
		materials.AmbientColor = materials.DiffuseColor;

		// Create the texture.
		if (ml.TextureFileName != null && ml.TextureFileName.Length > 0)
		{
			string textureFile = System.IO.Path.GetFileName(ml.TextureFileName);
			textures = new Texture(device, folderPath + textureFile);
		}
		else
		{
			textures = null;
		}
	}
}

//'class Unit' - contains a model and represents a movable entity
Model model;

public void Draw(Device device)
{
	device.Transform.World = Transform;
	device.VertexFormat = model.Mesh.VertexFormat;

	for (int i = 0; i < model.Materials.Length; i++)
	{
		// Set the material and texture for this subset.
		device.Material = model.Materials;
		device.SetTexture(0, model.Textures);

		// Draw the mesh subset.
		model.Mesh.DrawSubset(i);
	}
}