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funrep/ECS.cs

Created Dec 14, 2015
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Barebones Entity Component System in C#
using System.Collections.Generic;
using System.Linq;
namespace ProjectCC
{
class World
{
private List<Entity> Entities;
private List<System> Systems;
public World()
{
this.Entities = new List<Entity>();
this.Systems = new List<System>();
}
public void AddSystem(System sys)
{
this.Systems.Add(sys);
}
public void Step()
{
List<Component> entComps, comps;
foreach (var ent in this.Entities)
{
entComps = ent.Components;
foreach (var sys in this.Systems)
{
comps = entComps.Where(
comp => sys.ComponentNames.Contains(comp.Name)).ToList();
sys.Run(comps);
}
}
}
}
class Entity
{
private int id;
public List<Component> Components { get; }
public Entity(List<Component> comps)
{
this.id = IdGenerator.New();
this.Components = comps;
}
public void AddComponent(Component comp)
{
this.Components.Add(comp);
}
public void RemoveComponent(string name)
{
foreach (var comp in this.Components)
{
if (comp.Name == name)
{
this.Components.Remove(comp);
}
}
}
}
abstract class Component
{
// user-defined, contains data
abstract public string Name { get; }
}
abstract class System
{
// user-defined, contains logic
abstract public List<string> ComponentNames { get; }
abstract public void Run(List<Component> comps);
}
}
@joleeee

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@joleeee joleeee commented Jul 26, 2018

Thanks for posting.

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