public static EntitiesIndexedByNavigationNodes build(NavigationEngine p_navigationEngine)
{
EntitiesIndexedByNavigationNodes l_instance = new EntitiesIndexedByNavigationNodes();
l_instance.Entities = new Dictionary <NavigationNode, List <Entity> >();
return(l_instance);
}
/// <summary>
/// If the <paramref name="p_entity"/> has a <see cref="NavigationModifier"/> component, then the fact that he has moved involves that the
/// <see cref="NavigationGraph"/> layout is no more valid. <see cref="NavigationLink"/> must be recomputed to take into account the change.
/// </summary>
///
/// <param name="p_newNavigationNode">
/// The next <see cref="NavigationNode"/> where the <paramref name="p_entity"/> will be.
/// This value can be null, meaning that the <paramref name="p_entity"/>"s <see cref="NavigationModifier"/> component has been detached.
/// </param>
public static void resolveNavigationObstacleAlterations(NavigationEngine p_navigationEngine, Entity p_entity, NavigationNode p_oldNavigationNode, NavigationNode p_newNavigationNode)
{
if (p_oldNavigationNode != p_newNavigationNode)
{
NavigationModifier l_entityNavigationModifier = EntityComponent.get_component <NavigationModifier>(p_entity);
if (l_entityNavigationModifier != null && l_entityNavigationModifier.NavigationModifierData.IsObstacle)
{
if (p_newNavigationNode != null)
{
if (p_oldNavigationNode != null)
{
// We restore p_oldNavigationNode NavigationLinks only if there is no more NavigationModifier.Obstacle
if (!EntityQuery.isThereAtLeastOfComponentOfType <NavigationModifier>(ref p_navigationEngine.EntitiesIndexedByNavigationNodes, p_oldNavigationNode, NavigationModifier.IsObstacle))
{
NavigationLinkAlteration.restoreNavigationLinksFromSnapshot(NavigationGraphContainer.UniqueNavigationGraph, NavigationLinkAlteration.ENavigationLinkAlterationMethod.TO,
p_oldNavigationNode);
}
}
NavigationLinkAlteration.removeNavigationLinks(NavigationGraphContainer.UniqueNavigationGraph, NavigationLinkAlteration.ENavigationLinkAlterationMethod.TO,
p_newNavigationNode);
}
else
{
// We restore p_oldNavigationNode NavigationLinks only if there is no more NavigationModifier.Obstacle
if (!EntityQuery.isThereAtLeastOfComponentOfType <NavigationModifier>(ref p_navigationEngine.EntitiesIndexedByNavigationNodes, p_oldNavigationNode, NavigationModifier.IsObstacle))
{
NavigationLinkAlteration.restoreNavigationLinksFromSnapshot(NavigationGraphContainer.UniqueNavigationGraph, NavigationLinkAlteration.ENavigationLinkAlterationMethod.TO,
p_oldNavigationNode);
}
}
}
}
}
/// <summary>
/// Calls trigger event <see cref="INavigationTriggerComponent.OnTriggerEnter(Entity, List{_EventQueue.AEvent})"/> if the <paramref name="p_movingEntity"/>
/// moves to a <see cref="NavigationNode"/> that contains any <see cref="INavigationTriggerComponent"/>.
/// <see cref="INavigationTriggerComponent.OnTriggerEnter"/> event call are ordered by order defined by <see cref="TriggerResolutionOrder.TriggerComponentResolutionOrder"/>.
/// </summary>
public static void resolveTrigger(NavigationEngine p_navigationEngine, Entity p_movingEntity,
NavigationNode p_oldNavigationNode, NavigationNode p_newNavigationNode)
{
if (p_newNavigationNode != null)
{
if (p_navigationEngine.EntitiesIndexedByNavigationNodes.Entities.ContainsKey(p_newNavigationNode))
{
List <Entity> l_entitiesOnTheNewNavigationNode = p_navigationEngine.EntitiesIndexedByNavigationNodes.Entities[p_newNavigationNode];
List <INavigationTriggerComponent> l_currentEntityTriggerComponents = new List <INavigationTriggerComponent>();
for (int i = 0; i < l_entitiesOnTheNewNavigationNode.Count; i++)
{
Entity l_entity = l_entitiesOnTheNewNavigationNode[i];
if (l_entity != p_movingEntity)
{
TriggerResolutionOrder.extractTriggerComponentSortedByExecutionOrder(l_currentEntityTriggerComponents, l_entity);
for (int j = 0; j < l_currentEntityTriggerComponents.Count; j++)
{
INavigationTriggerComponent l_resolvedComponent = l_currentEntityTriggerComponents[j];
l_resolvedComponent.OnTriggerEnter(p_movingEntity, p_navigationEngine.CachedProducedEventsStackByTriggers);
}
}
}
}
}
}
/// <summary>
/// Tick the <see cref="NavigationEngine"/> :
/// - Updates the position of the <paramref name="p_entity"/> on the <see cref="NavigationNode"/> indexed containers.
/// (see <see cref="EntitiesIndexedByNavigationNodes.onNavigationNodeChange(ref EntitiesIndexedByNavigationNodes, Entity, NavigationNode, NavigationNode)"/>).
/// - If the <paramref name="p_entity"/> is defined as an obstacle <see cref="_Navigation._Modifier.NavigationModifier"/>, then obstacles representation
/// of the <see cref="NavigationGraph"/> is updated (see <see cref="ObstacleStep.resolveNavigationObstacleAlterations(NavigationEngine, Entity, NavigationNode, NavigationNode)"/>).
/// - Calls the trigger events if elligible (see <see cref="TriggerResolutionStep.resolveTrigger(NavigationEngine, Entity, NavigationNode, NavigationNode)"/>).
/// </summary>
/// <param name="p_oldNavigationNode"> Thr old <see cref="NavigationNode"/> can be null. Meaning that the <paramref name="p_entity"/> wasn't positioned inside the <see cref="NavigationGraph"/> before. </param>
/// <param name="p_newNavigationNode"> The target <see cref="NavigationNode"/> can be null. Meaning that the <paramref name="p_entity"/> have been destroyed. </param>
public static List <AEvent> resolveEntityNavigationNodeChange(NavigationEngine p_navigationEngine,
Entity p_entity, NavigationNode p_oldNavigationNode, NavigationNode p_newNavigationNode)
{
p_navigationEngine.CachedProducedEventsStackByTriggers.Clear();
EntitiesIndexedByNavigationNodes.onNavigationNodeChange(ref p_navigationEngine.EntitiesIndexedByNavigationNodes, p_entity, p_oldNavigationNode, p_newNavigationNode);
ObstacleStep.resolveNavigationObstacleAlterations(p_navigationEngine, p_entity, p_oldNavigationNode, p_newNavigationNode);
TriggerResolutionStep.resolveTrigger(p_navigationEngine, p_entity, p_oldNavigationNode, p_newNavigationNode);
return(p_navigationEngine.CachedProducedEventsStackByTriggers);
}
public static void free(NavigationEngine p_navigationEngine)
{
EntitiesIndexedByNavigationNodes.free(ref p_navigationEngine.EntitiesIndexedByNavigationNodes);
if (NavigationEngineContainer.UniqueNavigationEngine == p_navigationEngine)
{
NavigationEngineContainer.UniqueNavigationEngine = null;
}
;
}
public static NavigationEngine alloc()
{
NavigationEngine l_instance = new NavigationEngine();
l_instance.EntitiesIndexedByNavigationNodes = EntitiesIndexedByNavigationNodes.build(l_instance);
l_instance.CachedProducedEventsStackByTriggers = new List <AEvent>();
NavigationEngineContainer.UniqueNavigationEngine = l_instance;
return(l_instance);
}
