public static EntitiesIndexedByNavigationNodes build(NavigationEngine p_navigationEngine)
{
EntitiesIndexedByNavigationNodes l_instance = new EntitiesIndexedByNavigationNodes();
l_instance.Entities = new Dictionary <NavigationNode, List <Entity> >();
return(l_instance);
}
/// <summary>
/// Returns true if <paramref name="p_entitiesIndexedByNavigationNodes"/> has any <see cref="Entity"/> that has a component of type COMPONENT
/// and is satisfying the <paramref name="p_filterCondition"/> condition.
/// </summary>
public static bool isThereAtLeastOfComponentOfType <COMPONENT>(
ref EntitiesIndexedByNavigationNodes p_entitiesIndexedByNavigationNodes,
NavigationNode p_requestedNode,
Func <COMPONENT, bool> p_filterCondition = null)
where COMPONENT : AEntityComponent
{
if (p_entitiesIndexedByNavigationNodes.Entities.ContainsKey(p_requestedNode))
{
List <Entity> l_entities = p_entitiesIndexedByNavigationNodes.Entities[p_requestedNode];
for (int i = 0; i < l_entities.Count; i++)
{
COMPONENT l_component = EntityComponent.get_component <COMPONENT>(l_entities[i]);
if (l_component != null)
{
if (p_filterCondition != null)
{
if (p_filterCondition.Invoke(l_component))
{
return(true);
}
}
else
{
return(true);
}
}
}
}
return(false);
}
private static void removeEntityToNavigationNode(ref EntitiesIndexedByNavigationNodes p_entitiesIndexedByNavigationNodes, Entity p_entity, NavigationNode p_navigationNode)
{
if (p_entitiesIndexedByNavigationNodes.Entities.ContainsKey(p_navigationNode))
{
p_entitiesIndexedByNavigationNodes.Entities[p_navigationNode].Remove(p_entity);
}
}
private static void addEntityToNavigationNode(ref EntitiesIndexedByNavigationNodes p_entitiesIndexedByNavigationNodes, Entity p_entity, NavigationNode p_navigationNode)
{
if (!p_entitiesIndexedByNavigationNodes.Entities.ContainsKey(p_navigationNode))
{
p_entitiesIndexedByNavigationNodes.Entities.Add(p_navigationNode, new List <Entity>());
}
List <Entity> l_navigationNodeEntities = p_entitiesIndexedByNavigationNodes.Entities[p_navigationNode];
if (!l_navigationNodeEntities.Contains(p_entity))
{
l_navigationNodeEntities.Add(p_entity);
}
}
public static void onNavigationNodeChange(ref EntitiesIndexedByNavigationNodes p_entitiesIndexedByNavigationNodes,
Entity p_entity, NavigationNode p_oldNavigationNode, NavigationNode p_newNavigationNode)
{
if (p_entity != null)
{
if (p_newNavigationNode != null)
{
addEntityToNavigationNode(ref p_entitiesIndexedByNavigationNodes, p_entity, p_newNavigationNode);
}
if (p_oldNavigationNode != null)
{
removeEntityToNavigationNode(ref p_entitiesIndexedByNavigationNodes, p_entity, p_oldNavigationNode);
}
}
}
public static void free(ref EntitiesIndexedByNavigationNodes p_entitiesIndexedByNavigationNodes)
{
p_entitiesIndexedByNavigationNodes.Entities.Clear();
}
