reupload

src/main/java/com/loohp/limbo/utils/ChunkDataUtils.java

@@ -0,0 +1,26 @@
+package com.loohp.limbo.utils;
+
+import net.querz.mca.Section;
+
+public class ChunkDataUtils {
+	
+	public static void adjustBlockStateBits(int newBits, Section section, int dataVersion) {
+		//increases or decreases the amount of bits used per BlockState
+		//based on the size of the palette.
+
+		long[] blockStates = section.getBlockStates();
+		long[] newBlockStates;
+
+		if (dataVersion < 2527) {
+			newBlockStates = newBits == blockStates.length / 64 ? blockStates : new long[newBits * 64];
+		} else {
+			int newLength = (int) Math.ceil(4096D / (64D / newBits));
+			newBlockStates = newBits == blockStates.length / 64 ? blockStates : new long[newLength];
+		}
+		for (int i = 0; i < 4096; i++) {
+			section.setPaletteIndex(i, section.getPaletteIndex(i), newBlockStates);
+		}
+		section.setBlockStates(newBlockStates);
+	}
+
+}