events.listen('worldgen.add', (event) => {
  var data = {
      stones: [
          {
              block: 'create:natural_scoria',
              clusterMinSize: 128,
              clusterMaxSize: 128,
              minHeight: 0,
              maxHeight: 8,
              clusterCount: 1
          },
          {
              block: 'quark:jasper',
              clusterMinSize: 128,
              clusterMaxSize: 128,

              minHeight: 8,
              maxHeight: 16,
              clusterCount: 1
          },
          {
              block: 'create:gabbro',
              clusterMinSize: 128,
              clusterMaxSize: 128,
              minHeight: 16,
              maxHeight: 24,
              clusterCount: 1
          },
          {
              block: 'quark:slate',
              clusterMinSize: 128,
              clusterMaxSize: 128,
              minHeight: 24,
              maxHeight: 32,
              clusterCount: 1
          },
          {
              block: 'quark:marble',
              clusterMinSize: 128,
              clusterMaxSize: 128,
              minHeight: 32,
              maxHeight: 40,
              clusterCount: 1
          },
          {
              block: 'minecraft:andesite',
              clusterMinSize: 128,
              clusterMaxSize: 128,
              minHeight: 40,
              maxHeight: 48,
              clusterCount: 1
          },
          {
              block: 'create:limestone',
              clusterMinSize: 128,
              clusterMaxSize: 128,
              minHeight: 48,
              maxHeight: 56,
              clusterCount: 1
          },
          {
              block: 'create:weather_limestone',
              clusterMinSize: 128,
              clusterMaxSize: 128,
              minHeight: 56,
              maxHeight: 64,
              clusterCount: 1
          }
      ]
  };
  let i = 1;
  data.stones.forEach((stone) => {
      let minHeight = i * 8 - 4;
      let maxHeight = i * 8 + 4;
      event.addOre((ore) => {
          ore.block = stone.block;
          ore.clusterMinSize = stone.clusterMinSize;
          ore.clusterMaxSize = stone.clusterMaxSize;
          ore.minHeight = minHeight;
          ore.maxHeight = maxHeight;
          ore.clusterCount = stone.clusterCount;

          // WorldgenLayer is specified to ensure Emendatus Enigmatica can spawn ores in the stones we generate
          ore.worldgenLayer = 'local_modifications';
      });
      i++;
  });
});