Examples of net.glowstone.util.NibbleArray

net.glowstone.util.NibbleArray
An array of nibbles (4-bit values) stored efficiently as a byte array of half the size. The even indices are stored in the least significant nibble and the odd indices in the most significant bits. For example, [1 5 8 15] is stored as [0x51 0xf8].

        /**
         * Create a new, empty ChunkSection.
         */
        public ChunkSection() {
            types = new char[ARRAY_SIZE];
            skyLight = new NibbleArray(ARRAY_SIZE);
            blockLight = new NibbleArray(ARRAY_SIZE);
            skyLight.fill((byte) 0xf);
        }

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        List<CompoundTag> sectionList = levelTag.getCompoundList("Sections");
        ChunkSection[] sections = new ChunkSection[16];
        for (CompoundTag sectionTag : sectionList) {
            int y = sectionTag.getByte("Y");
            byte[] rawTypes = sectionTag.getByteArray("Blocks");
            NibbleArray extTypes = sectionTag.containsKey("Add") ? new NibbleArray(sectionTag.getByteArray("Add")) : null;
            NibbleArray data = new NibbleArray(sectionTag.getByteArray("Data"));
            NibbleArray blockLight = new NibbleArray(sectionTag.getByteArray("BlockLight"));
            NibbleArray skyLight = new NibbleArray(sectionTag.getByteArray("SkyLight"));


            char[] types = new char[rawTypes.length];
            for (int i = 0; i < rawTypes.length; i++) {
                types[i] = (char) (((extTypes == null ? 0 : extTypes.get(i)) << 12) | ((rawTypes[i] & 0xff) << 4) | data.get(i));
            }

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            CompoundTag sectionTag = new CompoundTag();
            sectionTag.putByte("Y", i);


            byte[] rawTypes = new byte[sec.types.length];
            NibbleArray extTypes = null;
            NibbleArray data = new NibbleArray(sec.types.length);
            for (int j = 0; j < sec.types.length; j++) {
                rawTypes[j] = (byte) ((sec.types[j] >> 4) & 0xFF);
                byte extType = (byte) (sec.types[j] >> 12);
                if (extType > 0) {
                    if (extTypes == null) {
                        extTypes = new NibbleArray(sec.types.length);
                    }
                    extTypes.set(j, extType);
                }
                data.set(j, (byte) (sec.types[j] & 0xF));
            }
            sectionTag.putByteArray("Blocks", rawTypes);
            if (extTypes != null) {
                sectionTag.putByteArray("Add", extTypes.getRawData());
            }
            sectionTag.putByteArray("Data", data.getRawData());
            sectionTag.putByteArray("BlockLight", sec.blockLight.getRawData());
            sectionTag.putByteArray("SkyLight", sec.skyLight.getRawData());


            sectionTags.add(sectionTag);
        }

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Related Classes of net.glowstone.util.NibbleArray

net.glowstone.GlowChunk$ChunkSection

net.glowstone.io.anvil.AnvilChunkIoService

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