using System;
using System.Collections.Generic;

using OpenTK;
using org.niclasundharald.engine.graphics;


namespace org.niclasundharald.engine
{
	public class Actor : WorldObject
	{
		public static List<Actor> activeActors = new List<Actor>();
		public static List<Actor> finishedActors = new List<Actor>();

		public static void updateAll(float timespan){
			foreach (Actor a in activeActors){
				a.update(timespan);
			}

			foreach (Actor a in finishedActors){
				activeActors.Remove(a);
			}
			finishedActors.Clear();

		}

		private int id;

		public Actor(int id)
		{
			Console.WriteLine("New Actor: {0} / {1}",id,this);
			this.id = id;
			activeActors.Add(this);
		}

		public void destroy(){
			finishedActors.Add(this);
		}

		public Vector3	Heading { get; set; }
		public Vector3	Velocity { get; set; }
		public float	Weight { get; set; }

		public virtual void update(float timespan){
		}

		public void setHeading(Vector3 heading,Vector3 top){
				Vector3 x,y,z;

				z = heading.Normalized();
				x = Vector3.Cross( top.Normalized(), z ).Normalized();
				y = Vector3.Cross( x, z );

				Matrix4 mRotation = new Matrix4(
					new Vector4(x,0),
					new Vector4(y,0),
					new Vector4(z,0),
					new Vector4(0,0,0,1)
				);

			Rotation = Matrix4.CreateRotationX(MathHelper.PiOver2) * mRotation;
		}

		public Model3D Model3D { get; set; }

		public override Model3D getModel3D()
		{
			return Model3D;
		}

	}
}