ZoneRequirementJsonLoader

package com.hypixel.hytale.server.worldgen.loader.zone;

import com.google.gson.JsonElement;
import com.hypixel.hytale.procedurallib.json.JsonLoader;
import com.hypixel.hytale.procedurallib.json.SeedString;
import com.hypixel.hytale.server.worldgen.SeedStringResource;
import java.nio.file.Path;
import java.util.HashSet;
import java.util.Set;
import javax.annotation.Nonnull;

public class ZoneRequirementJsonLoader extends JsonLoader<SeedStringResource, Set<String>> {
   public ZoneRequirementJsonLoader(SeedString<SeedStringResource> seed, Path dataFolder, JsonElement json) {
      super(seed, dataFolder, json);
   }

   @Nonnull
   public Set<String> load() {
      if (!this.has("MaskMapping")) {
         throw new IllegalArgumentException("Could not find mappings for colors in mask file. Keyword: MaskMapping");
      } else {
         Set<String> zoneSet = new HashSet<>();
         ZoneColorMappingJsonLoader.collectZones(zoneSet, this.get("MaskMapping"));
         UniqueZoneEntryJsonLoader.collectZones(zoneSet, this.get("UniqueZones"));
         return zoneSet;
      }
   }
}