BuilderActionDropItem.java

package com.hypixel.hytale.server.npc.corecomponents.items.builders;

import com.google.gson.JsonElement;
import com.hypixel.hytale.server.core.asset.type.model.config.Model;
import com.hypixel.hytale.server.npc.asset.builder.BuilderDescriptorState;
import com.hypixel.hytale.server.npc.asset.builder.BuilderSupport;
import com.hypixel.hytale.server.npc.asset.builder.holder.AssetHolder;
import com.hypixel.hytale.server.npc.asset.builder.validators.AssetValidator;
import com.hypixel.hytale.server.npc.asset.builder.validators.DoubleRangeValidator;
import com.hypixel.hytale.server.npc.asset.builder.validators.DoubleSequenceValidator;
import com.hypixel.hytale.server.npc.asset.builder.validators.asset.ItemDropListExistsValidator;
import com.hypixel.hytale.server.npc.asset.builder.validators.asset.ItemExistsValidator;
import com.hypixel.hytale.server.npc.corecomponents.builders.BuilderActionWithDelay;
import com.hypixel.hytale.server.npc.corecomponents.items.ActionDropItem;
import com.hypixel.hytale.server.npc.instructions.Action;
import com.hypixel.hytale.server.npc.util.AimingHelper;
import com.hypixel.hytale.server.npc.util.expression.ExecutionContext;
import com.hypixel.hytale.server.npc.util.expression.Scope;
import com.hypixel.hytale.server.npc.validators.NPCLoadTimeValidationHelper;
import java.util.List;
import javax.annotation.Nonnull;

public class BuilderActionDropItem extends BuilderActionWithDelay {
   public static final double[] DEFAULT_THROW_DISTANCE = new double[]{1.0, 1.0};
   public static final double[] DEFAULT_DROP_SECTOR = new double[]{0.0, 0.0};
   protected final AssetHolder item = new AssetHolder();
   protected final AssetHolder dropList = new AssetHolder();
   protected float throwSpeed;
   protected double[] distance;
   protected double[] dropSector;
   protected boolean highPitch;

   public BuilderActionDropItem() {
   }

   @Nonnull
   public String getShortDescription() {
      return "Drop an item";
   }

   @Nonnull
   public String getLongDescription() {
      return "Drop an item. Can be a specific item, or from a drop table";
   }

   @Nonnull
   public Action build(@Nonnull BuilderSupport builderSupport) {
      return new ActionDropItem(this, builderSupport);
   }

   @Nonnull
   public BuilderActionDropItem readConfig(@Nonnull JsonElement data) {
      this.getAsset(data, "Item", this.item, (String)null, ItemExistsValidator.withConfig(AssetValidator.CanBeEmpty), BuilderDescriptorState.Stable, "A specific item to drop", (String)null);
      this.getAsset(data, "DropList", this.dropList, (String)null, ItemDropListExistsValidator.withConfig(AssetValidator.CanBeEmpty), BuilderDescriptorState.Stable, "A reference to an item drop list", (String)null);
      this.getFloat(data, "ThrowSpeed", (s) -> this.throwSpeed = s, 1.0F, DoubleRangeValidator.fromExclToIncl(0.0, 3.4028234663852886E38), BuilderDescriptorState.Stable, "The throw speed to use", (String)null);
      this.getDoubleRange(data, "Distance", (s) -> this.distance = s, DEFAULT_THROW_DISTANCE, DoubleSequenceValidator.betweenWeaklyMonotonic(0.0, 1.7976931348623157E308), BuilderDescriptorState.Stable, "The range from which to pick a distance to throw the item", (String)null);
      this.getDoubleRange(data, "DropSector", (s) -> this.dropSector = s, DEFAULT_DROP_SECTOR, DoubleSequenceValidator.betweenWeaklyMonotonic(-360.0, 360.0), BuilderDescriptorState.Stable, "The sector to spread drops in relative to view direction of NPC", "The sector to spread drops in relative to view direction of NPC in degrees.");
      this.getBoolean(data, "PitchHigh", (v) -> this.highPitch = v, false, BuilderDescriptorState.Stable, "Whether to pitch high or pitch low instead", (String)null);
      this.validateOneSetAsset(this.item, this.dropList);
      return this;
   }

   @Nonnull
   public BuilderDescriptorState getBuilderDescriptorState() {
      return BuilderDescriptorState.Stable;
   }

   public boolean validate(String configName, @Nonnull NPCLoadTimeValidationHelper validationHelper, ExecutionContext context, Scope globalScope, @Nonnull List<String> errors) {
      boolean result = super.validate(configName, validationHelper, context, globalScope, errors);
      Model model = validationHelper.getSpawnModel();
      float height = model.getEyeHeight();
      double newThrowSpeed = AimingHelper.ensurePossibleThrowSpeed(this.distance[1], (double)height, 32.0, (double)this.throwSpeed);
      if (newThrowSpeed > (double)this.throwSpeed) {
         errors.add(String.format("%s: Throw speed %.2f is too low to achieve distance of %.2f in DropItem action. Needs to be at least %.2f", configName, this.throwSpeed, this.distance[1], Math.ceil(newThrowSpeed * 100.0) / 100.0));
         result = false;
      }

      return result;
   }

   public String getItem(@Nonnull BuilderSupport support) {
      return this.item.get(support.getExecutionContext());
   }

   public String getDropList(@Nonnull BuilderSupport support) {
      return this.dropList.get(support.getExecutionContext());
   }

   public float getThrowSpeed() {
      return this.throwSpeed;
   }

   public double[] getDropSectorRadians() {
      return this.dropSector;
   }

   public double[] getDistance() {
      return this.distance;
   }

   public boolean isHighPitch() {
      return this.highPitch;
   }
}