PredictedProjectileSystems.java

package com.hypixel.hytale.server.core.modules.projectile.system;

import com.hypixel.hytale.component.ArchetypeChunk;
import com.hypixel.hytale.component.CommandBuffer;
import com.hypixel.hytale.component.ComponentType;
import com.hypixel.hytale.component.Ref;
import com.hypixel.hytale.component.Store;
import com.hypixel.hytale.component.SystemGroup;
import com.hypixel.hytale.component.query.Query;
import com.hypixel.hytale.component.system.tick.EntityTickingSystem;
import com.hypixel.hytale.protocol.ComponentUpdate;
import com.hypixel.hytale.protocol.ComponentUpdateType;
import com.hypixel.hytale.server.core.modules.entity.tracker.EntityTrackerSystems;
import com.hypixel.hytale.server.core.modules.projectile.component.PredictedProjectile;
import com.hypixel.hytale.server.core.universe.world.storage.EntityStore;
import java.util.Map;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;

public class PredictedProjectileSystems {
   public PredictedProjectileSystems() {
   }

   public static class EntityTrackerUpdate extends EntityTickingSystem<EntityStore> {
      @Nonnull
      private final ComponentType<EntityStore, EntityTrackerSystems.Visible> visibleComponentType = EntityTrackerSystems.Visible.getComponentType();
      @Nonnull
      private final ComponentType<EntityStore, PredictedProjectile> predictedProjectileComponentType = PredictedProjectile.getComponentType();
      @Nonnull
      private final Query<EntityStore> query;

      public EntityTrackerUpdate() {
         this.query = Query.<EntityStore>and(this.visibleComponentType, this.predictedProjectileComponentType);
      }

      @Nullable
      public SystemGroup<EntityStore> getGroup() {
         return EntityTrackerSystems.QUEUE_UPDATE_GROUP;
      }

      @Nonnull
      public Query<EntityStore> getQuery() {
         return this.query;
      }

      public boolean isParallel(int archetypeChunkSize, int taskCount) {
         return EntityTickingSystem.maybeUseParallel(archetypeChunkSize, taskCount);
      }

      public void tick(float dt, int index, @Nonnull ArchetypeChunk<EntityStore> archetypeChunk, @Nonnull Store<EntityStore> store, @Nonnull CommandBuffer<EntityStore> commandBuffer) {
         EntityTrackerSystems.Visible visibleComponent = (EntityTrackerSystems.Visible)archetypeChunk.getComponent(index, this.visibleComponentType);

         assert visibleComponent != null;

         PredictedProjectile predictedProjectileComponent = (PredictedProjectile)archetypeChunk.getComponent(index, this.predictedProjectileComponentType);

         assert predictedProjectileComponent != null;

         if (!visibleComponent.newlyVisibleTo.isEmpty()) {
            queueUpdatesFor(archetypeChunk.getReferenceTo(index), predictedProjectileComponent, visibleComponent.newlyVisibleTo);
         }

      }

      private static void queueUpdatesFor(@Nonnull Ref<EntityStore> ref, @Nonnull PredictedProjectile predictedProjectile, @Nonnull Map<Ref<EntityStore>, EntityTrackerSystems.EntityViewer> visibleTo) {
         ComponentUpdate update = new ComponentUpdate();
         update.type = ComponentUpdateType.Prediction;
         update.predictionId = predictedProjectile.getUuid();

         for(Map.Entry<Ref<EntityStore>, EntityTrackerSystems.EntityViewer> entry : visibleTo.entrySet()) {
            ((EntityTrackerSystems.EntityViewer)entry.getValue()).queueUpdate(ref, update);
         }

      }
   }
}