public void AddComponent <TComponent>(Entity entity, TComponent component) where TComponent : struct, IComponent
{
Type componentType = typeof(TComponent);
HashSet <Type> entityComponents = entityComponentTypes[entity];
if (entityComponents.Contains(componentType))
{
return;
}
entityComponents.Add(componentType);
IComponentsList componentsList;
if (!componentLists.TryGetValue(componentType, out componentsList))
{
componentsList = new ComponentsList <TComponent>();
componentLists.Add(componentType, componentsList);
}
componentsList.SetComponent(entity, component);
foreach (var group in componentGroups)
{
if (IsComponentTypesMatchGroup(entityComponents, group.Key))
{
group.Value.AddEntity(entity);
}
}
}
public ComponentsList <TComponent> GetComponentsList <TComponent>() where TComponent : struct, IComponent
{
Type componentType = typeof(TComponent);
IComponentsList components;
if (componentLists.TryGetValue(componentType, out components))
{
return((ComponentsList <TComponent>)components);
}
var componentsList = new ComponentsList <TComponent>();
componentLists.Add(componentType, componentsList);
return(componentsList);
}
public ComponentGroup(EntityManager entityManager)
{
components = entityManager.GetComponentsList <T>();
}