public ComponentKey CreateComponentKey(params Type[] componentTypes)
{
var key = ComponentKey.Empty;
foreach (var type in componentTypes)
{
if (!m_manager.m_componentTypeToId.TryGetValue(type, out int id))
{
throw new InvalidOperationException($"Specified type has not been registered: {type.Name}");
}
key |= ComponentKey.CreateFromComponentId(id);
}
return(key);
}
public void CloneFrom(Entity that)
{
var thisComponentTypes = m_components.Keys.ToHashSet();
var thatComponentTypes = that.m_components.Keys.ToHashSet();
HashSet <Type> componentTypesInBoth = new HashSet <Type>();
foreach (var type in thisComponentTypes.ToList())
{
if (thisComponentTypes.Contains(type))
{
thisComponentTypes.Remove(type);
thatComponentTypes.Remove(type);
componentTypesInBoth.Add(type);
}
}
foreach (var typeToDelete in thisComponentTypes)
{
m_components.Remove(typeToDelete);
}
foreach (var typeToAdd in thatComponentTypes)
{
m_components[typeToAdd] = that.m_components[typeToAdd].Clone();
}
foreach (var typeToUpdate in componentTypesInBoth)
{
if (that.m_components[typeToUpdate].Version > m_components[typeToUpdate].Version)
{
m_components[typeToUpdate] = that.m_components[typeToUpdate].Clone();
}
}
ComponentKey = that.ComponentKey;
}
public void AddComponent(ComponentBase component)
{
m_components.Add(component.GetType(), component);
ComponentKey = m_entityLookup.CreateComponentKey(m_components.Values);
}
public IReadOnlyList <Entity> GetEntitiesMatchingKey(ComponentKey componentKey)
{
return(m_entities.Values.Where(x => (x.ComponentKey & componentKey) == componentKey).ToList());
}