class="kw">package com.hypixel.hytale.server.npc.instructions.builders;

class="kw">import com.google.gson.JsonElement;
class="kw">import com.hypixel.hytale.server.npc.asset.builder.Builder;
class="kw">import com.hypixel.hytale.server.npc.asset.builder.BuilderDescriptorState;
class="kw">import com.hypixel.hytale.server.npc.asset.builder.BuilderSupport;
class="kw">import com.hypixel.hytale.server.npc.instructions.Instruction;
class="kw">import com.hypixel.hytale.server.npc.instructions.Sensor;
class="kw">import it.unimi.dsi.fastutil.ints.IntSet;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class BuilderInstructionReference class="kw">extends BuilderInstruction {
   @Nullable
   class="kw">protected IntSet internalDependencies;

   class="kw">public BuilderInstructionReference() {
   }

   @Nonnull
   @Override
   class="kw">public String getShortDescription() {
      class="kw">return "Prioritized instruction list that can be referenced from elsewhere in the file";
   }

   @Nonnull
   @Override
   class="kw">public String getLongDescription() {
      class="kw">return "Prioritized instruction list that can be referenced from elsewhere in the file. Otherwise works like the class="kw">default";
   }

   @Nonnull
   @Override
   class="kw">public BuilderDescriptorState getBuilderDescriptorState() {
      class="kw">return BuilderDescriptorState.Stable;
   }

   @Nullable
   @Override
   class="kw">public Instruction build(@Nonnull BuilderSupport var1) {
      if (!this.enabled.get(var1.getExecutionContext())) {
         class="kw">return null;
      }

      Sensor var2;
      if (this.sensorBuilderObjectReferenceHelper.isPresent()) {
         var2 = this.getSensor(var1);
         if (var2 == null) {
            class="kw">return null;
         }
      } else {
         var2 = Sensor.NULL;
      }

      if (this.currentStateName != null) {
         var1.pushCurrentStateName(this.currentStateName);
      }

      Instruction[] var3 = this.hasNestedInstructions() ? this.getSteps(var1) : null;
      if (var3 == null && !this.hasActions() && !this.hasBodyMotion() && !this.hasHeadMotion()) {
         if (this.currentStateName != null) {
            var1.popCurrentStateName();
         }

         class="kw">return null;
      } else {
         if (this.currentStateName != null) {
            var1.popCurrentStateName();
         }

         class="kw">return new Instruction(this, var2, var3, var1);
      }
   }

   @Override
   class="kw">public boolean excludeFromRegularBuilding() {
      class="kw">return true;
   }

   @Override
   class="kw">protected boolean requiresName() {
      class="kw">return true;
   }

   @Nullable
   @Override
   class="kw">public String getName() {
      class="kw">return null;
   }

   @Nonnull
   @Override
   class="kw">public Builder<Instruction> readConfig(@Nonnull JsonElement var1) {
      if (!this.isCreatingDescriptor()) {
         this.internalReferenceResolver.setRecordDependencies();
      }

      this.getParameterBlock(var1, BuilderDescriptorState.Stable, "The parameter block for defining variables", null);
      super.readConfig(var1);
      this.cleanupParameters();
      if (!this.isCreatingDescriptor()) {
         this.internalDependencies = this.internalReferenceResolver.getRecordedDependenices();
         this.internalReferenceResolver.stopRecordingDependencies();
         int var2 = this.internalReferenceResolver.getOrCreateIndex(this.name);
         this.internalReferenceResolver.addBuilder(var2, this);
      }

      class="kw">return this;
   }

   @Nullable
   class="kw">public IntSet getInternalDependencies() {
      class="kw">return this.internalDependencies;
   }
}