Enhancements, fixes, new texture

src/main/java/ru/betterend/world/features/CharniaFeature.java

@@ -0,0 +1,14 @@
+package ru.betterend.world.features;
+
+import net.minecraft.block.Block;
+
+public class CharniaFeature extends UnderwaterPlantFeature {
+	public CharniaFeature(Block plant) {
+		super(plant, 6);
+	}
+	
+	@Override
+	protected int getChance() {
+		return 3;
+	}
+}

src/main/java/ru/betterend/world/features/MengerSpongeFeature.java

@@ -0,0 +1,41 @@
+package ru.betterend.world.features;
+
+import java.util.Random;
+import java.util.function.Function;
+
+import net.minecraft.block.BlockState;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.Direction;
+import net.minecraft.world.StructureWorldAccess;
+import ru.betterend.registry.EndBlocks;
+import ru.betterend.util.BlocksHelper;
+
+public class MengerSpongeFeature extends UnderwaterPlantScatter {
+	private static final Function<BlockState, Boolean> REPLACE;
+	
+	public MengerSpongeFeature(int radius) {
+		super(radius);
+	}
+
+	@Override
+	public void generate(StructureWorldAccess world, Random random, BlockPos blockPos) {
+		BlocksHelper.setWithoutUpdate(world, blockPos, EndBlocks.MENGER_SPONGE_WET);
+		if (random.nextBoolean()) {
+			for (Direction dir: BlocksHelper.DIRECTIONS) {
+				BlockPos pos = blockPos.offset(dir);
+				if (REPLACE.apply(world.getBlockState(pos))) {
+					BlocksHelper.setWithoutUpdate(world, pos, EndBlocks.MENGER_SPONGE_WET);
+				}
+			}
+		}
+	}
+	
+	static {
+		REPLACE = (state) -> {
+			if (state.isOf(EndBlocks.END_LOTUS_STEM)) {
+				return false;
+			}
+			return !state.getFluidState().isEmpty() || state.getMaterial().isReplaceable();
+		};
+	}
+}