FeaturesFileFormat

Any "Features File" (that is, any file in the "sysconf" directory that fits the pattern "features-.json") is simply an array of objects, each object having a "name" and a "class" field. The "name" field is the string that the feature will be referred to by in any spawn entry that uses said feature while the "class" must be the fully qualified class name of the class that provides the feature.

What follows is an example and the contents of the "features-default.json" that defines the built-in features of MMD OreSpawn 3.

[
  {
    "name": "default",
    "class": "com.mcmoddev.orespawn.impl.features.DefaultFeatureGenerator"
  },
  {
    "name": "vein",
    "class": "com.mcmoddev.orespawn.impl.features.VeinGenerator"
  },
  {
    "name": "normal-cloud",
    "class": "com.mcmoddev.orespawn.impl.features.NormalCloudGenerator"
  },
  {
    "name": "precision",
    "class": "com.mcmoddev.orespawn.impl.features.PrecisionGenerator"
  },
  {
    "name": "clusters",
    "class": "com.mcmoddev.orespawn.impl.features.ClusterGenerator"
  }
]

That's it - simple as.