World util fix

src/main/java/ru/betterend/util/SplineHelper.java

@@ -33,6 +33,29 @@ public class SplineHelper {
 		return spline;
 	}
 	
+	public static List<Vector3f> smoothSpline(List<Vector3f> spline, int segmentPoints) {
+		List<Vector3f> result = Lists.newArrayList();
+		Vector3f start = spline.get(0);
+		for (int i = 1; i < spline.size(); i++) {
+			Vector3f end = spline.get(i);
+			for (int j = 0; j < segmentPoints; j++) {
+				float delta = (float) j / segmentPoints;
+				delta = 0.5F - 0.5F * MathHelper.cos(delta * 3.14159F);
+				result.add(lerp(start, end, delta));
+			}
+			start = end;
+		}
+		result.add(start);
+		return result;
+	}
+	
+	private static Vector3f lerp(Vector3f start, Vector3f end, float delta) {
+		float x = MathHelper.lerp(delta, start.getX(), end.getX());
+		float y = MathHelper.lerp(delta, start.getY(), end.getY());
+		float z = MathHelper.lerp(delta, start.getZ(), end.getZ());
+		return new Vector3f(x, y, z);
+	}
+	
 	public static void offsetParts(List<Vector3f> spline, Random random, float dx, float dy, float dz) {
 		int count = spline.size();
 		for (int i = 1; i < count; i++) {

src/main/java/ru/betterend/util/WorldDataUtil.java

@@ -15,7 +15,7 @@ public class WorldDataUtil {
 		saveFile = file;
 		if (file.exists()) {
 			try {
-				root = NbtIo.read(file);
+				root = NbtIo.readCompressed(file);
 			}
 			catch (IOException e) {
 				BetterEnd.LOGGER.error("World data loading failed", e);
@@ -48,7 +48,7 @@ public class WorldDataUtil {
 	
 	public static void saveFile() {
 		try {
-			NbtIo.write(root, saveFile);
+			NbtIo.writeCompressed(root, saveFile);
 		}
 		catch (IOException e) {
 			BetterEnd.LOGGER.error("World data saving failed", e);

src/main/java/ru/betterend/util/sdf/SDF.java

@@ -273,4 +273,38 @@ public abstract class SDF {
 			world.setBlock(info.getPos(), info.getState());
 		});
 	}
+	
+	public Set<BlockPos> getPositions(ServerWorldAccess world, BlockPos start) {
+		Set<BlockPos> blocks = Sets.newHashSet();
+		Set<BlockPos> ends = Sets.newHashSet();
+		Set<BlockPos> add = Sets.newHashSet();
+		ends.add(new BlockPos(0, 0, 0));
+		boolean run = true;
+		
+		Mutable bPos = new Mutable();
+		
+		while (run) {
+			for (BlockPos center: ends) {
+				for (Direction dir: Direction.values()) {
+					bPos.set(center).move(dir);
+					BlockPos wpos = bPos.add(start);
+					BlockState state = world.getBlockState(wpos);
+					if (!blocks.contains(wpos) && canReplace.apply(state)) {
+						if (this.getDistance(bPos.getX(), bPos.getY(), bPos.getZ()) < 0) {
+							add.add(bPos.toImmutable());
+						}
+					}
+				}
+			}
+			
+			ends.forEach((end) -> blocks.add(end.add(start)));
+			ends.clear();
+			ends.addAll(add);
+			add.clear();
+			
+			run &= !ends.isEmpty();
+		}
+		
+		return blocks;
+	}
 }