MoonTools.ECS/src/System.cs

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namespace MoonTools.ECS;
public abstract class System : EntityComponentReader
{
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internal MessageDepot MessageDepot;
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public FilterBuilder FilterBuilder => new FilterBuilder(ComponentDepot);
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internal void RegisterMessageDepot(MessageDepot messageDepot)
{
MessageDepot = messageDepot;
}
public abstract void Update(TimeSpan delta);
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protected Entity CreateEntity()
{
return EntityStorage.Create();
}
protected void Set<TComponent>(in Entity entity, in TComponent component) where TComponent : struct
{
ComponentDepot.Set<TComponent>(entity.ID, component);
}
protected void Remove<TComponent>(in Entity entity) where TComponent : struct
{
ComponentDepot.Remove<TComponent>(entity.ID);
}
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protected ReadOnlySpan<TMessage> ReadMessages<TMessage>() where TMessage : struct
{
return MessageDepot.Read<TMessage>();
}
protected bool SomeMessage<TMessage>() where TMessage : struct
{
return MessageDepot.Some<TMessage>();
}
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protected void Send<TMessage>(in TMessage message) where TMessage : struct
{
MessageDepot.Add(message);
}
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protected void Destroy(in Entity entity)
{
ComponentDepot.OnEntityDestroy(entity.ID);
EntityStorage.Destroy(entity);
}
}