public IEntity CreateEntity(BaseSystem system)
{
Entity entity = new Entity();
Entities.Add(entity);
InitEntity(entity, system);
return(entity);
}
public int GetEntityCount(BaseSystem system)
{
SystemWrapper wrapper;
wrappers.TryGetValue(system.GetType(), out wrapper);
if (wrapper != null)
{
return(wrapper.EntityCount);
}
return(0);
}
public void InitEntity(Entity entity, BaseSystem system)
{
if (entity == null || system == null)
{
return;
}
if (entity.ComponentCount == 0)
{
system.KeyComponents.ForEach(type => AddComponent(entity, Activator.CreateInstance(type) as IComponent));
}
else
{
system.KeyComponents.Where(c => !entity.Contains(c)).ForEach(type => AddComponent(entity, Activator.CreateInstance(type) as IComponent));
}
}
public bool Add(BaseSystem system, IEnumerable <IEntity> existingEntities)
{
if (wrappers.ContainsKey(system.GetType()))
{
return(false);
}
SystemWrapper wrapper = new SystemWrapper(system);
wrappers.Add(system.GetType(), wrapper);
foreach (Entity enitity in existingEntities)
{
wrapper.AddEntity(enitity);
}
return(true);
}
public int EntityCount(BaseSystem system)
{
return(systems.GetEntityCount(system));
}
public void InitEntity(IEntity entity, BaseSystem system)
{
Components.InitEntity(entity as Entity, system);
}
public IWorld AddSystem(BaseSystem system)
{
system.Finder = this.EntityFinder;
Systems.Add(system, Entities.EntityFinder.Find(system.KeyComponents));
return(this);
}
/**** ***/
public bool BelongsTo(BaseSystem sys)
{
return(this.ContainsAll(sys.KeyComponents));
}
public SystemWrapper(BaseSystem system)
{
System = system;
entities = new HashSet <Entity>();
}