Registry.java

package com.hypixel.hytale.registry;

import com.hypixel.hytale.function.consumer.BooleanConsumer;
import java.util.Collections;
import java.util.List;
import java.util.function.BooleanSupplier;
import javax.annotation.Nonnull;

public abstract class Registry<T extends Registration> {
   @Nonnull
   private final BooleanSupplier precondition;
   private final String preconditionMessage;
   private final RegistrationWrapFunction<T> wrappingFunction;
   @Nonnull
   private final List<BooleanConsumer> registrations;
   @Nonnull
   private final List<BooleanConsumer> unmodifiableRegistrations;
   private boolean enabled = true;

   protected Registry(@Nonnull List<BooleanConsumer> registrations, @Nonnull BooleanSupplier precondition, String preconditionMessage, @Nonnull RegistrationWrapFunction<T> wrappingFunction) {
      this.registrations = registrations;
      this.unmodifiableRegistrations = Collections.unmodifiableList(registrations);
      .precondition = precondition;
      .preconditionMessage = preconditionMessage;
      .wrappingFunction = wrappingFunction;
   }

      {
       (!.precondition.getAsBoolean()) {
           (.preconditionMessage);
      }
   }

      {
       .enabled;
   }

      {
      .enabled = ;
   }

      {
      .enabled = ;
   }

    T  {
       (!.enabled) {
         registration.unregister();
           ();
      }  {
            (v) -> registration.unregister();
         .registrations.add(reg);
          .wrappingFunction.wrap(registration, () -> .enabled || registration.isRegistered(), () -> {
            .registrations.remove(reg);
            registration.unregister();
         });
      }
   }

   
    List<BooleanConsumer>  {
       .unmodifiableRegistrations;
   }

   
    String  {
        + .registrations.size() + ;
   }

     <T  > {
      T ;
   }
}