using System;
using org.budnhead.graphics.primitives;
using org.budnhead.graphics;
using org.budnhead.exceptions;
using org.budnhead.tools;

using OpenTK;



namespace org.budnhead.core
{
	public class BallisticActor : Actor
	{
		BallisticActorStates actorState;
		
		public BallisticActor(int id)
		:base(id)
		{
			this.actorState = BallisticActorStates.FLYING;
			this.Model3D = ResourceLibrary.getResource<LoadedModel>("ballistisch");

			for (int n=0;n < this.Model3D.vertexes.Length;n++){
				this.Model3D.colors[n] = new Vector4(1.0f,0.2f + (0.5f * this.Model3D.vertexes[n].Z / -4.0f),0,1.0f);
			}

			this.Model3D.rebind();
			
			setBuffers("HowFire", "HowHit");
			setDistanceAttenuation(2, 200, 800);
		}

		public override void update(float timespan)
		{
			base.update(timespan);

			switch (actorState){
				case BallisticActorStates.FLYING:
					Velocity.Value += (Physics.Gravitation * timespan);
					Position.Value += Velocity.Value * timespan;
									
					setHeading( Velocity.Value, Physics.Gravitation);
			
						try
						{
						Vector3 ground = SquaredMap.activeMap.ground(Position.Value.Xy);

							if (Position.Value.Z <= ground.Z){
									Console.WriteLine("BallisticActor hit ground!");
									actorState = BallisticActorStates.HIT;
		                            playSound("HowHit");
							}
						} catch (OutOfWorldException owe){
							Console.WriteLine("BallisticActor disappeared at {0} [{1}]",Position,Velocity);
							actorState = BallisticActorStates.DISAPPEARED;
						}
					break;

				case BallisticActorStates.HIT:
				case BallisticActorStates.DISAPPEARED:
					Model3D = null;

					if (!soundPlaying()){
						destroy();
					}
					break;
			}

		}



		public void fire()
		{
			//playSound("HowFire");

		}


	}
}