Added Feature: #0654 - API support for disabling AE2 world gen in specific dimensions

core/features/registries/WorldGenRegistry.java

@@ -0,0 +1,71 @@
+package appeng.core.features.registries;
+
+import java.util.HashSet;
+
+import net.minecraft.world.World;
+import net.minecraft.world.WorldProvider;
+import appeng.api.features.IWorldGen;
+
+public class WorldGenRegistry implements IWorldGen
+{
+
+	private class TypeSet
+	{
+
+		HashSet<Class<? extends WorldProvider>> badProviders = new HashSet();
+		HashSet<Integer> badDimentions = new HashSet();
+
+	};
+
+	TypeSet[] types;
+
+	static final public WorldGenRegistry instance = new WorldGenRegistry();
+
+	private WorldGenRegistry() {
+
+		types = new TypeSet[WorldGenType.values().length];
+
+		for (WorldGenType type : WorldGenType.values())
+		{
+			types[type.ordinal()] = new TypeSet();
+		}
+
+	}
+
+	@Override
+	public boolean isWorldGenEnabled(WorldGenType type, World w)
+	{
+		if ( type == null )
+			throw new IllegalArgumentException( "Bad Type Passed" );
+
+		if ( w == null )
+			throw new IllegalArgumentException( "Bad Provider Passed" );
+
+		if ( types[type.ordinal()].badProviders.contains( w.provider.getClass() ) || types[type.ordinal()].badDimentions.contains( w.provider.dimensionId ) )
+			return false;
+
+		return true;
+	}
+
+	@Override
+	public void disableWorldGenForProviderID(WorldGenType type, Class<? extends WorldProvider> provider)
+	{
+		if ( type == null )
+			throw new IllegalArgumentException( "Bad Type Passed" );
+
+		if ( provider == null )
+			throw new IllegalArgumentException( "Bad Provider Passed" );
+
+		types[type.ordinal()].badProviders.add( provider );
+	}
+
+	@Override
+	public void disableWorldGenForDimension(WorldGenType type, int dimid)
+	{
+		if ( type == null )
+			throw new IllegalArgumentException( "Bad Type Passed" );
+
+		types[type.ordinal()].badDimentions.add( dimid );
+	}
+
+}