Extend the API to allow mods to register their feature-generators at run-time. The feature will be added to _features.json if it is written out after this point.

Author: dshadowwolf

src/main/java/com/mcmoddev/orespawn/api/OreSpawnAPI.java

@@ -19,4 +19,6 @@ public interface OreSpawnAPI {
     OreSpawnWorldGen getWorldGenerator();
 
     void registerSpawns();
+    
+    void addFeatureGenerator(String name, String className);
 }

src/main/java/com/mcmoddev/orespawn/data/FeatureRegistry.java

@@ -73,6 +73,14 @@ public void addFeature(JsonObject entry) {
 		}
 	}
 
+	public void addFeature(String name, String className) {
+		IFeature feature = getInstance(className);
+		if( feature != null ) {
+			features.put(name, feature);
+			featuresInverse.put(feature, name);
+		}		
+	}
+	
 	private IFeature getInstance(String className) {
 		Class<?> featureClazz;
 		Constructor<?> featureCons;

src/main/java/com/mcmoddev/orespawn/impl/OreSpawnImpl.java

@@ -61,4 +61,9 @@ public void registerSpawns() {
     public OreSpawnWorldGen getWorldGenerator() {
         return worldGenerator;
     }
+
+	@Override
+	public void addFeatureGenerator(String name, String className) {
+		OreSpawn.FEATURES.addFeature(name, className);
+	}
 }