using System.Collections.Generic;



namespace Delta.Engine.Game

{

	/// <summary>

	/// Basic world class containing a list of actors which can be spawned and

	/// despawned into the world.

	/// </summary>

	public class World

	{

		#region AllActors (Public)

		/// <summary>

		/// Array of all actors in this world.

		/// </summary>

		public Actor[] AllActors

		{

			get

			{

				return actors.ToArray();

			}

		}

		#endregion



		#region Private



		#region actors (Private)

		/// <summary>

		/// List of all actors in this world.

		/// </summary>

		private readonly List<Actor> actors;

		#endregion



		#endregion



		#region Constructors

		/// <summary>

		/// Create a new world.

		/// </summary>

		public World()

		{

			actors = new List<Actor>();

		}

		#endregion



		#region SpawnActor (Public)

		/// <summary>

		/// Spawn an actor in the world.

		/// </summary>

		/// <param name="newActor">The new actor to spawn.</param>

		public void SpawnActor(Actor newActor)

		{

			// Call the "Spawned" function to let the actor do logic after being

			// spawned.

			newActor.Spawned();



			// Add actor to our list of actors

			actors.Add(newActor);

		}

		#endregion



		#region DespawnActor (Public)

		/// <summary>

		/// Calls the despawned method of the actor and then removes the actor

		/// from the list of known actors.

		/// </summary>

		/// <param name="actor">The actor to despawn.</param>

		public void DespawnActor(Actor actor)

		{

			actor.Despawned();



			actors.Remove(actor);

		}

		#endregion

	}

}