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Chunk parse

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shsa 2015-01-29 09:11:31 +07:00
parent 746be15e86
commit bdce41d9a6
2 changed files with 182 additions and 76 deletions
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179
java/Orebfuscator/ChunkInfo.java Normal file
View file

@ -0,0 +1,179 @@
package Orebfuscator;
import net.minecraft.network.play.server.S26PacketMapChunkBulk;
import net.minecraft.world.World;
public class ChunkInfo
{
// èíôîðìàöèÿ î íàëè÷èè ñåêöèè. Ñåêöèè - ýòî áëîêè ðàçìåðîì 16õ16õ16, ñåêöèè ðàñïîëàãàþòñÿ äðóã íàä äðóãîì
// Chunk ñîñòîèò èç 16 ñåêöèé, ðàçìåð ÷àíêà 16x16x256
//public boolean[] listLSB = new boolean[16];
//public boolean[] listMSB = new boolean[16];
// offsetsLSB[] - ñîäåðæèò ñïèñîê ïîçèöèé, ñ êîòîðûõ íà÷èíàþòñÿ áëîêè ðàçìåðîì 16x16x16 ñîäåðæàùèå ïåðâûå 8 áèò BlockID
// ðàçìåð ñåêöèè 16*16*16 = 4096 áàéò
public int[] offsetsLSB = new int[16];
// íà÷àëî NibbleArrays ñîäåðæàùèõ ExtendedBlockStorage.blockMetadataArray
// ðàçìåð ìàññèâà (16*16*16)/2 = 2048 (äåëèì ïîïàëàì, ò.ê. â îäíîì áàéòå ñîäåðæèòñÿ äâà çíà÷åíèÿ ïî 4 áèòà)
public int[] offsetsMetadata = new int[16];
// íà÷àëî NibbleArray ñîäåðæàùåãî ExtendedBlockStorage.blocklightArray
public int[] offsetsBlocklight = new int[16];
// NibbleArray ExtendedBlockStorage.blockMSBArray
public int[] offsetsMSB = new int[16];
public int len;
public byte[] data;
public void parse(World world, byte[] data, int sectionLSB, int sectionMSB)
{
this.data = data;
int countLSB = 0;
len = 0;
int l;
int pos = 0;
int i;
for (i = 0; i < 16; ++i)
{
l = sectionLSB >> i & 1;
if (l == 1)
{
offsetsLSB[i] = pos;
pos += 4096;
countLSB++;
len = i + 1;
}
else
{
offsetsLSB[i] = -1;
}
}
for (i = 0; i < len; i++)
{
if (offsetsLSB[i] > -1)
{
offsetsMetadata[i] = pos;
pos += 2048;
}
}
for (i = 0; i < len; i++)
{
if (offsetsLSB[i] > -1)
{
offsetsMetadata[i] = pos;
pos += 2048;
}
}
for (i = 0; i < len; i++)
{
if (offsetsLSB[i] > -1)
{
offsetsBlocklight[i] = pos;
pos += 2048;
}
}
if (!world.provider.hasNoSky)
{
// åñëè åñòü íåáî, òî â áóôåðå áóäåò ìàññèâ ExtendedBlockStorage.skylightArray
pos += countLSB * 2048;
}
for (i = 0; i < len; i++)
{
l = sectionMSB >> i & 1;
if (l == 1)
{
offsetsMSB[i] = pos;
pos += 2048;
}
else
{
offsetsMSB[i] = -1;
}
}
for (i = 0; i < len; i++)
{
if (offsetsLSB[i] > -1)
{
for (int x = 0; x < 16; x++)
{
for (int y = 0; y < 16; y++)
{
for (int z = 0; z < 16; z++)
{
if ((x > 0 && x < 16) && (y == 0 || y == 15) && (z == 0 || z == 15))
setBlockID(x, y, z, 1);
if ((x == 0 || x == 15) && (y > 0 || y < 16) && (z == 0 || z == 15))
setBlockID(x, y, z, 1);
if ((x == 0 || x == 15) && (y == 0 || y == 15) && (z > 0 || z < 16))
setBlockID(x, y, z, 1);
if (!Orebfuscator.isBlockTransparent(getBlockID(x, y, z)))
{
//data[pos + n] = 1;
}
}
}
}
}
}
}
/**
* Returns the block corresponding to the given coordinates inside a chunk.
*/
public int getBlockID(int x, int y, int z)
{
int section = y >> 4;
if (this.offsetsLSB[section] > -1)
{
y = y & 15;
int id = this.data[this.offsetsLSB[section] + y << 8 | z << 4 | x] & 255;
if (this.offsetsMSB[section] > -1)
{
int l = y << 4 | z << 4 | x;
int i1 = l >> 1;
int j1 = l & 1;
id |= j1 == 0 ? this.data[this.offsetsMSB[section] + i1] & 15 : this.data[this.offsetsMSB[section] + i1] >> 4 & 15;
}
}
return 0;
}
public void setBlockID(int x, int y, int z, int blockID)
{
int section = y >> 4;
if (this.offsetsLSB[section] > -1)
{
y = y & 15;
this.data[this.offsetsLSB[section] + y << 8 | z << 4 | x] = (byte) (blockID & 255);
if (this.offsetsMSB[section] > -1)
{
int l = y << 4 | z << 4 | x;
int i1 = l >> 1;
int j1 = l & 1;
int pos = this.offsetsMSB[section] + i1;
if (j1 == 0)
{
this.data[pos] = (byte)(this.data[pos] & 240 | blockID & 15);
}
else
{
this.data[pos] = (byte)(this.data[pos] & 15 | (blockID & 15) << 4);
}
}
}
}
}

79
java/Orebfuscator/MapChunkBulk.java
View file

@ -27,6 +27,8 @@ public class MapChunkBulk
bufMSB = (int[]) Fields.getValue(packet, "field_149262_d"); // 0001110 - íàáîð áëîêîâ (ExtendedBlockStorage.blockMSBArray) ïî âûñîòå (1 - åñòü áëîê, 0 - íåò áëîêà)
dataArray = (byte[][]) Fields.getValue(packet, "field_149260_f"); // -- ìàññèâ äàííûõ
ChunkInfo info = new ChunkInfo();
int lsb;
int msb;
int pos;
@ -34,82 +36,7 @@ public class MapChunkBulk
for (int i = 0; i < bufLSB.length; i++)
{
lenLSB = 0;
lenMSB = 0;
len = 0;
for (int j = 0; j < 16; ++j)
{
l = bufLSB[i] >> j & 1;
if (l == 1)
{
lenLSB++;
len = j + 1;
l = bufMSB[i] >> j & 1;
lenMSB++;
}
}
offsetLSB = 0; // ñ ýòîé ïîçèöèè íà÷èíàþòñÿ áëîêè ðàçìåðîì 16x16x16 ñîäåðæàùèå ïåðâûå 8 áèò BlockID
// ðàçìåð áëîêà 16*16*16 = 4096 áàéò
offsetMetadata = offsetLSB + lenLSB * 4096; // íà÷àëî NibbleArrays ñîäåðæàùèõ ExtendedBlockStorage.blockMetadataArray
// ðàçìåð ìàññèâà (16*16*16)/2 = 2048 (äåëèì ïîïàëàì, ò.ê. â îäíîì áàéòå ñîäåðæèòñÿ äâà çíà÷åíèÿ ïî 4 áèòà)
offsetBlocklight = offsetMetadata + lenLSB * 2048; // íà÷àëî NibbleArray ñîäåðæàùåãî ExtendedBlockStorage.blocklightArray
// NibbleArray ExtendedBlockStorage.blockMSBArray
if (world.provider.hasNoSky)
{
offsetMSB = offsetBlocklight + lenLSB * 2048;
}
else
{
offsetMSB = offsetBlocklight + 2 * lenLSB * 2048; // åñëè åñòü íåáî, òî â áóôåðå áóäåò ìàññèâ ExtendedBlockStorage.skylightArray
}
pos = 0;
data = dataArray[i];
for (int j = 0; j < 16; ++j)
{
l = bufLSB[i] >> j & 1;
if (l == 1)
{
for (int x = 0; x < 16; x++)
{
for (int y = 0; y < 16; y++)
{
for (int z = 0; z < 16; z++)
{
if (!Orebfuscator.isBlockTransparent(getBlockID(x, y, z)))
{
//data[pos + n] = 1;
}
}
}
}
pos += 4096;
}
}
info.parse(world, dataArray[i], bufLSB[i], bufMSB[i]);
}
}
public int getBlockID(int x, int y, int z)
{
if (y >> 4 < this.lenLSB)
{
y = y & 15;
/*
int l = this.blockLSBArray[y << 8 | z << 4 | x] & 255;
if (this.blockMSBArray != null)
{
l |= this.blockMSBArray.get(p_150819_1_, p_150819_2_, p_150819_3_) << 8;
}
return Block.getBlockById(l);
*/
}
return 0;
}
}