#include <iostream>
#include <bitset>
#include "World.hpp"
Block &World::GetBlock(PositionI pos) {
//unsigned long long pos = (unsigned long long) x << 32;
//pos |= y;
return m_blocks[pos];
}
void World::SetBlock(PositionI pos, Block block) {
//unsigned long long pos = (unsigned long long) x << 32;
//pos |= y;
m_blocks[pos] = block;
}
void World::ParseChunkData(Packet packet) {
int chunkX = packet.GetField(0).GetInt();
int chunkZ = packet.GetField(1).GetInt();
bool isGroundContinuous = packet.GetField(2).GetBool();
std::bitset<16> bitmask(packet.GetField(3).GetVarInt());
int entities = packet.GetField(5).GetVarInt();
size_t dataLen = packet.GetField(5).GetLength();
byte *content = new byte[dataLen];
packet.GetField(5).CopyToBuff(content);
std::cout << "Chunk " << chunkX << "x" << chunkZ << std::endl;
std::cout << "\tGround continuous: " << (isGroundContinuous ? "true" : "false") << std::endl;
std::cout << "\tPrimary bitmask: " << bitmask << std::endl;
std::cout << "\tDataLen: " << dataLen << std::endl;
std::cout << "\tEntities: " << entities << std::endl;
if (isGroundContinuous)
dataLen -= 256;
byte *biomes = content + packet.GetField(5).GetLength() - 256;
for (int i = 0; i < 1; i++) {
if (bitmask[i]) {
size_t len = ParseSectionData(chunkX, chunkZ, isGroundContinuous, i, content);
//content += len;
//std::cout << "\t Size of section is " << len << std::endl;
}
}
std::cout << std::dec << std::endl;
fflush(stdout);
}
size_t World::ParseSectionData(int chunkX, int chunkZ, bool isGroundContinous, int section, byte *data) {
Field fBitsPerBlock = FieldParser::Parse(UnsignedByte, data);
byte bitsPerBlock = fBitsPerBlock.GetUByte();
data += fBitsPerBlock.GetLength();
bool usePalette = bitsPerBlock <= 8;
Field fPaletteLength = FieldParser::Parse(VarInt, data);
int paletteLength = fPaletteLength.GetVarInt();
data += fPaletteLength.GetLength();
std::cout << "Section: " << chunkX << "x" << chunkZ << "x" << section << std::endl;
std::cout << "\tBits per block: " << (int) bitsPerBlock << std::endl;
std::cout << "\tPalette length: " << paletteLength << std::endl;
std::vector<int> palette;
std::map<unsigned char, unsigned short> pal;
if (paletteLength > 0) {
for (unsigned char i = 0; i < paletteLength; i++) {
endswap(&i);
Field f = FieldParser::Parse(VarInt, data);
data += f.GetLength();
palette.push_back(f.GetVarInt());
std::cout << "\t\tPalette[" << std::bitset<8>(i) << "]: " << std::bitset<13>(palette[i]) << std::endl;
pal[i] = f.GetVarInt();
endswap(&i);
}
}
Field fDataLength = FieldParser::Parse(VarInt, data);
data += fDataLength.GetLength();
int dataLength = fDataLength.GetVarInt();
size_t dataSize = dataLength * 8;
std::cout << "\tData length: " << dataLength << " (" << dataSize << ")" << std::endl;
std::vector<unsigned short> blocks = ParseBlocks(data, dataLength, palette, bitsPerBlock);
std::cout << "\tChunk content: ";
int i = 0;
for (int y = 0; y < SECTION_LENGTH; y++) {
for (int z = 0; z < SECTION_HEIGHT; z++) {
for (int x = 0; x < SECTION_WIDTH; x++) {
int X = chunkX * SECTION_WIDTH + x;
int Y = section * SECTION_HEIGHT + y;
int Z = chunkZ * SECTION_LENGTH + z;
//std::cerr<<"Block at "<<X<<" "<<Y<<" "<<Z<<std::endl;
Block block(usePalette ? pal[blocks[i]] : blocks[i],15);
SetBlock(PositionI(X, Z, Y), block);
std::cout << (PositionI(X, Z, Y).GetY()) << ": "
<< block.GetId() << "\t";
//<< (usePalette ? pal[blocks[i]] : blocks[i]) << "\t";
//<< std::bitset<13>(usePalette ? pal[blocks[i]] : blocks[i]) << "\t";
i++;
}
}
}
std::cout << std::endl;
/*for (auto it:blocks) {
//auto m = std::bitset<4>(it).to_string();
//std::cout<<m<<" ";
std::cout<<std::bitset<13>(pal[it])<<" ";
//std::cout << (m=="1000" || m =="0100" || m=="0010"?"":m+" ");
}*/
return (dataSize + (m_dimension == 0 ? dataSize : 0) / 2 + dataSize / 2);
}
std::vector<unsigned short>
World::ParseBlocks(byte *bytes, int dataLength, std::vector<int> palette, byte bitsPerBlock) {
std::vector<unsigned short> blocks;
for (int i = 0; i < blocks.size(); i++) {
blocks[i] = 0;
}
byte *data = new byte[dataLength * 8];
size_t arrLength = dataLength * 8;
byte *ptr = data;
for (int i = 0; i < dataLength; i++) {
Field fData = FieldParser::Parse(Long, bytes);
bytes += fData.GetLength();
*reinterpret_cast<long long *>(ptr) = fData.GetLong();
ptr += 8;
}
int bitPos = 0;
unsigned short t = 0;
for (int i = 0; i < arrLength; i++) {
//endswap(&data[i]);
//std::bitset<8> bitset1 = std::bitset<8>(data[i]);
//std::cout << bitset1 << ": ";
for (int j = 0; j < 8; j++) {
//std::bitset<8> bitset2 = std::bitset<8>(t);
/*std::cout << bitset2 << "_";
std::cout << bitset1 << "\t";
fflush(stdout);*/
t |= (data[i] & 0x01) ? 0x80 : 0x00;
t >>= 1;
data[i] >>= 1;
bitPos++;
if (bitPos >= bitsPerBlock) {
bitPos = 0;
//endswap(&t);
t >>= bitsPerBlock - 1;
blocks.push_back(t);
//std::cout << bitset2 << "\t";
t = 0;
}
/*bitset1 = std::bitset<8>(data[i]);
bitset2 = std::bitset<8>(t);*/
}
}
//std::cout << std::endl;
/*int bitPos = 0, bytePos = 0, pushedBlocks = 0, bits = 0;
unsigned short t = 0;
while (bytePos < arrLength) {
//std::cout << std::bitset<8>(data[bytePos]) << " ";
//int bit = data[bytePos] & 1;
t|=(data[bytePos] & 1)<<bitPos;
data[bytePos] = data[bytePos]>>1;
//t = t | ((data[bytePos]<<bitPos) & 1);
std::cout<<std::bitset<8>(t)<<"\t";
if (bitPos >= 7) {
bitPos = 0;
bytePos++;
blocks[pushedBlocks] = t;
std::cout<<std::bitset<13>(t)<<"\t";
t = 0;
} else {
bitPos++;
}
bits++;
if (bits>=bitsPerBlock){
bits=0;
bitPos=0;
bytePos++;
blocks[pushedBlocks] = t;
std::cout<<std::bitset<13>(t)<<"+\t";
t = 0;
} else {
t <<= 1;
}
fflush(stdout);
}*/
//
/*int shift = 0;
int bx = 0;
for (int bytmass = 0; bytmass < arrLength; bytmass++) {
unsigned char bitinbyte = 7;
int block = 0;
for (int posbit = 7; posbit > 0; posbit--) {
int b = (data[bytmass] >> posbit);
blocks[block + shift] = blocks[block + shift] | (b << bx);
bx++;
if (bx > bitsPerBlock) {
bx = 0;
if (shift == 0) shift = 1;
if (shift == 1) {
shift = 0;
block++;
if ((block * 2) > blocks.size()) {
std::cout<<block*2<<">"<<blocks.size()<<std::endl;
throw 124;
}
}
}
}
}*/
//
delete[] data;
return blocks;
}
