Artemis Entity Component System (#360)

* artemis ecs * Working on StarWarrior * Refactor for bugs * demo works :) * Fix pool bug * Fix string typo * ObjectPool garbage optimization * Aspect attribute * Remove BigInteger * Fix demo * Refactor for events * wip on platformer demo * Fix typo
2026-07-24 12:06:37 +00:00 · 2017-04-02 18:16:39 +10:00
parent 4585f9a5c3
commit 2725d02715
113 changed files with 5972 additions and 1498 deletions
@@ -1,149 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using Microsoft.Xna.Framework;
-using MonoGame.Extended.Entities.Components;
-using MonoGame.Extended.Entities.Systems;
-
-namespace MonoGame.Extended.Entities
-{
-    public class EntityComponentSystem
-    {
-        private readonly List<EntityComponent> _components;
-        private readonly List<DyingEntity> _dyingEntities;
-        private readonly List<Entity> _entities;
-        private readonly Dictionary<string, Entity> _entitiesByName;
-
-        private readonly List<ComponentSystem> _systems;
-        private long _nextEntityId;
-
-        public EntityComponentSystem()
-        {
-            _entities = new List<Entity>();
-            _entitiesByName = new Dictionary<string, Entity>();
-            _dyingEntities = new List<DyingEntity>();
-            _components = new List<EntityComponent>();
-            _systems = new List<ComponentSystem>();
-            _nextEntityId = 1;
-        }
-
-        internal event EventHandler<EntityComponent> ComponentAttached;
-        internal event EventHandler<EntityComponent> ComponentDetached;
-        internal event EventHandler<Entity> EntityCreated;
-        internal event EventHandler<Entity> EntityDestroyed;
-
-        public void RegisterSystem(ComponentSystem system)
-        {
-            if (system.Parent != null)
-                throw new InvalidOperationException("Component system already registered");
-
-            system.Parent = this;
-            _systems.Add(system);
-        }
-
-        public Entity CreateEntity()
-        {
-            return CreateEntity(null);
-        }
-
-        public Entity CreateEntity(Vector2 position, float rotation = 0)
-        {
-            return CreateEntity(null, position, rotation);
-        }
-
-        public Entity CreateEntity(string name, Vector2 position, float rotation = 0)
-        {
-            var entity = CreateEntity(name);
-            entity.Position = position;
-            entity.Rotation = rotation;
-            return entity;
-        }
-
-        public Entity CreateEntity(string name)
-        {
-            var entity = new Entity(this, _nextEntityId, name);
-
-            _entities.Add(entity);
-
-            if (name != null)
-                _entitiesByName.Add(name, entity);
-
-            EntityCreated?.Invoke(this, entity);
-            _nextEntityId++;
-            return entity;
-        }
-
-        public void DestroyEntity(Entity entity, float delaySeconds)
-        {
-            if (delaySeconds.Equals(0f))
-                DestroyEntity(entity);
-            else
-                _dyingEntities.Add(new DyingEntity {Entity = entity, SecondsUntilDeath = delaySeconds});
-        }
-
-        public void DestroyEntity(Entity entity)
-        {
-            foreach (var component in _components.Where(c => c.Entity == entity).ToArray())
-                DetachComponent(component);
-
-            if (entity.Name != null)
-                _entitiesByName.Remove(entity.Name);
-
-            _entities.Remove(entity);
-            EntityDestroyed?.Invoke(this, entity);
-        }
-
-        public Entity GetEntity(string name)
-        {
-            Entity entity;
-            return _entitiesByName.TryGetValue(name, out entity) ? entity : null;
-        }
-
-        internal void AttachComponent(EntityComponent component)
-        {
-            _components.Add(component);
-            ComponentAttached?.Invoke(this, component);
-        }
-
-        internal void DetachComponent(EntityComponent component)
-        {
-            _components.Remove(component);
-            (component as IDisposable)?.Dispose();
-            ComponentDetached?.Invoke(this, component);
-        }
-
-        internal IEnumerable<T> GetComponents<T>() where T : EntityComponent
-        {
-            return _components.OfType<T>();
-        }
-
-        public void Update(GameTime gameTime)
-        {
-            foreach (var componentSystem in _systems)
-                componentSystem.Update(gameTime);
-
-            for (var i = 0; i < _dyingEntities.Count; i++)
-            {
-                _dyingEntities[i].SecondsUntilDeath -= gameTime.GetElapsedSeconds();
-
-                if (_dyingEntities[i].SecondsUntilDeath <= 0)
-                {
-                    DestroyEntity(_dyingEntities[i].Entity);
-                    _dyingEntities.Remove(_dyingEntities[i]);
-                }
-            }
-        }
-
-        public void Draw(GameTime gameTime)
-        {
-            foreach (var componentSystem in _systems)
-                componentSystem.Draw(gameTime);
-        }
-
-        public class DyingEntity
-        {
-            public Entity Entity;
-            public float SecondsUntilDeath;
-        }
-    }
-}