BlackboardSystems

Package: com.hypixel.hytale.server.npc.systems

public class BlackboardSystems

Container class for four ECS systems that manage the shared Blackboard resource. The Blackboard provides structured world-state views (block types, events, attitudes, resources, interactions) to NPC sensors.

Inner Systems

BlackboardSystems.InitSystem

public static class InitSystem extends StoreSystem<EntityStore>

Initializes and tears down the Blackboard resource when the system is added to or removed from the store.

@Override
public void onSystemAddedToStore(@Nonnull Store<EntityStore> store)

Calls Blackboard.init(world) to set up all blackboard views for the world.

@Override
public void onSystemRemovedFromStore(@Nonnull Store<EntityStore> store)

Calls Blackboard.onWorldRemoved() to clean up all views.

BlackboardSystems.TickingSystem

public static class TickingSystem extends DelayedSystem<EntityStore>

Periodically cleans up stale blackboard view data. Runs every 5 seconds (SYSTEM_INTERVAL = 5.0F).

@Override
public void delayedTick(float dt, int systemIndex, @Nonnull Store<EntityStore> store)

Calls Blackboard.cleanupViews().

BlackboardSystems.BreakBlockEventSystem

public static class BreakBlockEventSystem extends EntityEventSystem<EntityStore, BreakBlockEvent>

Forwards BreakBlockEvent ECS events to the blackboard. Calls Blackboard.onEntityBreakBlock(ref, event).

BlackboardSystems.DamageBlockEventSystem

public static class DamageBlockEventSystem extends EntityEventSystem<EntityStore, DamageBlockEvent>

Forwards DamageBlockEvent ECS events to the blackboard. Calls Blackboard.onEntityDamageBlock(ref, event).

Related Types

• RoleSystems — uses blackboard data during behavior ticks
• PositionCacheSystems — spatial queries that complement blackboard views