MoonWorksECSTest/src/PositionSystem.cs

using System;
using MoonTools.ECS;

namespace MoonWorksECSTest
{
	public class PositionSystem : MoonTools.ECS.System
	{
		Filter PositionFilter;

		public PositionSystem(World world) : base(world)
		{
			PositionFilter =
				FilterBuilder.Include<PositionComponent>()
							 .Exclude<StaticPositionComponent>()
							 .Build();
		}

		public override void Update(TimeSpan delta)
		{
			foreach (var entity in PositionFilter.Entities)
			{
				foreach (var inputMessage in ReadMessages<InputMessage>())
				{
					if (inputMessage.DpadUp.IsPressed)
					{
						var positionComponent = Get<PositionComponent>(entity);
						Set(entity, new PositionComponent { Position = new MoonWorks.Math.Vector2(positionComponent.Position.X + 10, positionComponent.Position.Y)});
						Console.WriteLine("Entity: " + entity.ID + ", Position: " + Get<PositionComponent>(entity).Position);
					}
				}
			}
		}
	}
}