void Chunk::fillTiles(const ChunkData &packet)
{
unsigned int index = 0;
unsigned int chunkLength = Chunk::height * Chunk::width;
const google::protobuf::RepeatedField<uint32> &fgTile = packet.fgtilecode();
const google::protobuf::RepeatedField<uint32> &bgTile = packet.bgtilecode();
const google::protobuf::RepeatedField<uint32> &fgNumber = packet.fgnumber();
const google::protobuf::RepeatedField<uint32> &bgNumber = packet.bgnumber();
unsigned int fgCounter = 0;
unsigned int bgCounter = 0;
uint32 fgTileCounter = 0;
uint32 bgTileCounter = 0;
std::cout << "Filling chunk at pos " << _pos.x << " " << _pos.y << std::endl;
for (index = 0; index < chunkLength; ++index)
{
if (fgTileCounter >= fgNumber.Get(fgCounter))
{
fgTileCounter = 0;
++fgCounter;
}
if (bgTileCounter >= bgNumber.Get(bgCounter))
{
bgTileCounter = 0;
++bgCounter;
}
_bgTiles[index] = tile(static_cast<TileType>(bgTile.Get(bgCounter)));
_tiles[index] = tile(static_cast<TileType>(fgTile.Get(fgCounter)));
++fgTileCounter;
++bgTileCounter;
}
_generated = true;
}
void Renderer::draw()
{
//int dw = al_get_display_width(dpy_);
//int dh = al_get_display_height(dpy_);
ALLEGRO_TRANSFORM trans;
al_identity_transform(&trans);
al_compose_transform(&trans, &camera_transform_);
al_rotate_transform_3d(&trans, 1.0, 0.0, 0.0, rx_look);
setupProjection(&trans);
al_identity_transform(&trans);
al_use_transform(&trans);
getWorldPos(camera_pos_);
al_copy_transform(&cur3d_transform_, al_get_current_transform());
glEnable(GL_DEPTH_TEST);
// Accept fragment if it closer to the camera than the former one
glDepthFunc(GL_LEQUAL);
glEnable(GL_CULL_FACE);
glFrontFace(GL_CCW);
glEnable(GL_ALPHA_TEST);
if(!setShader(SHADER_DEFAULT))
{
NBT_Debug("failed to set default shader");
}
glBindVertexArray(vao_);
resManager_->setAtlasUniforms();
for(auto &it: chunkData_)
{
ChunkData *cd = it.second;
ALLEGRO_TRANSFORM ctrans;
al_identity_transform(&ctrans);
al_translate_transform_3d(&ctrans, cd->x()*15.0, 0.0, cd->z()*15.0);
al_use_transform(&ctrans);
cd->draw(&ctrans);
}
glBindVertexArray(0);
glDisable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
//drawSelection();
resManager_->unsetAtlasUniforms();
}
/**
* @brief Loads the next chunk.
*
* If the current chunk was the last chunk in the array a new chunk is created.
* Otherwise the old chunk is reset and loaded as current chunk.
*
* Always the position of the nested chunk vector is stored.
*/
inline void nextChunk() {
curChunk->store();
curChunkIndex += 1;
if(chunks.size() == curChunkIndex) {
curChunk = new ChunkData(chunkSize);
chunks.push_back(curChunk);
positions.push_back(nested.getPosition());
} else {
curChunk = chunks[curChunkIndex];
curChunk->reset();
positions[curChunkIndex] = nested.getPosition();
}
}
/**
* @brief Resets the chunk vector to the given position.
*
* This method will call reset on all chunks which are behind the
* given position.
*
* It calls also reset on the nested chunk vector.
*
* @param pos The position to reset to.
*/
void reset(const Position& pos) {
assert(pos.chunk < chunks.size());
assert(pos.data < chunkSize);
for(size_t i = curChunkIndex; i > pos.chunk; --i) {
chunks[i]->reset();
}
curChunk = chunks[pos.chunk];
curChunk->load();
curChunk->setUsedSize(pos.data);
curChunkIndex = pos.chunk;
nested.reset(pos.inner);
}
/**
* @brief Release all the memory, that the chunk vector has acquired.
*
* Reverts the chunk vector into its initial state after the construction.
* Only the memory of one chunk stays allocated.
*/
void resetHard() {
for(size_t i = 1; i < chunks.size(); ++i) {
delete chunks[i];
}
chunks.resize(1);
positions.resize(1);
curChunk = chunks[0];
curChunk->load();
curChunk->setUsedSize(0);
curChunkIndex = 0;
nested->resetHard();
}
/**
* @brief Checks if the current chunk has enough items left.
*
* If the chunk has not enough items left, the next chunk is
* loaded.
*
* @param items The maximum number of items to store.
*/
inline void reserveItems(const size_t items) {
assert(items <= chunkSize);
if(chunkSize < curChunk->getUsedSize() + items) {
nextChunk();
}
}
/**
* @brief Checks if the current chunk has enough items left.
*
* If the chunk has not enough items left, the next chunk is
* loaded.
*
* @param items The maximum number of items to store.
*/
CODI_INLINE void reserveItems(const size_t items) {
codiAssert(items <= chunkSize);
if(chunkSize < curChunk->getUsedSize() + items) {
nextChunk();
}
}
/**
* @brief Get the total number of data items used.
* @return The number of data items used in all chunks.
*/
inline size_t getDataSize() {
size_t size = curChunk->getUsedSize();
if(getNumChunks() != 0) {
size += (getNumChunks() - 1) * chunkSize;
}
return size;
}
ChunkData* Region::getChunkData(Int2 pos)
{
if(mChunks.find(pos)==mChunks.end())
{
int offset = getOffset(pos);
//cout << offset << endl;
if(offset==-1)
{
mChunks[pos] = new ChunkData(pos);
cout << "Missing Chunk " << pos.first <<" " << pos.second << endl;
return mChunks[pos];
}
mRegionFile.seekg(offset,mRegionFile.beg);
int length = NBT::ReadSwap<int32_t>(mRegionFile);
uint8_t format = NBT::Read<uint8_t>(mRegionFile);
NBT::TagCompound* tag = NBT::ReadNBTFromZlibStream(mRegionFile);
ChunkData* chunk = new ChunkData(pos);
chunk->loadFromNBT(tag);
mChunks[pos] = chunk;
delete tag;
}
return mChunks[pos];
}
bool ChunkMesh::isAirNearBlockFace(const ChunkData & chunkData, int blockX, int blockY, int blockZ, BlockFace face)
{
switch(face)
{
case BlockFace::North:
return blockZ == 0 || chunkData.getBlock(blockX, blockY, blockZ - 1) == 0;
case BlockFace::South:
return blockZ == chunkData.getZSize() - 1 || chunkData.getBlock(blockX, blockY, blockZ + 1) == 0;
case BlockFace::West:
return blockX == 0 || chunkData.getBlock(blockX - 1, blockY, blockZ) == 0;
case BlockFace::East:
return blockX == chunkData.getXSize() - 1 || chunkData.getBlock(blockX + 1, blockY, blockZ) == 0;
case BlockFace::Bottom:
return blockY == 0 || chunkData.getBlock(blockX, blockY - 1, blockZ) == 0;
case BlockFace::Top:
return blockY == chunkData.getYSize() - 1 || chunkData.getBlock(blockX, blockY + 1, blockZ) == 0;
default:
return false;
}
}
CODI_INLINE void setDataAndMove(const Data& ... data) {
// this method should only be called if reserveItems has been called
curChunk->setDataAndMove(data...);
}
ChunkMesh ChunkMesh::createFromChunkData(const ChunkData & chunkData)
{
ChunkMesh mesh;
mesh.m_isValid = true;
unsigned int indicesOffset = 0;
for(int y = 0; y < chunkData.getYSize(); ++y)
{
for(int z = 0; z < chunkData.getZSize(); ++z)
{
for(int x = 0; x < chunkData.getXSize(); ++x)
{
const int blockCode = chunkData.getBlock(x, y, z);
if(blockCode != 0)
{
if(isAirNearBlockFace(chunkData, x, y, z, BlockFace::North))
{
mesh.m_vertices.insert(
mesh.m_vertices.end(),
{
1.0f + x, 0.0f + y, 0.0f + z, 0.0f, 0.0f,
0.0f + x, 0.0f + y, 0.0f + z, 0.0f, 1.0f,
0.0f + x, 1.0f + y, 0.0f + z, 1.0f, 1.0f,
1.0f + x, 1.0f + y, 0.0f + z, 1.0f, 0.0f
}
);
mesh.m_indices.insert(
mesh.m_indices.end(),
{
0 + indicesOffset, 1 + indicesOffset, 2 + indicesOffset,
0 + indicesOffset, 2 + indicesOffset, 3 + indicesOffset
}
);
indicesOffset += 4;
}
if(isAirNearBlockFace(chunkData, x, y, z, BlockFace::South))
{
mesh.m_vertices.insert(
mesh.m_vertices.end(),
{
0.0f + x, 0.0f + y, 1.0f + z, 0.0f, 0.0f,
0.0f + x, 1.0f + y, 1.0f + z, 0.0f, 1.0f,
1.0f + x, 1.0f + y, 1.0f + z, 1.0f, 1.0f,
1.0f + x, 0.0f + y, 1.0f + z, 1.0f, 0.0f
}
);
mesh.m_indices.insert(
mesh.m_indices.end(),
{
0 + indicesOffset, 1 + indicesOffset, 2 + indicesOffset,
0 + indicesOffset, 2 + indicesOffset, 3 + indicesOffset
}
);
indicesOffset += 4;
}
if(isAirNearBlockFace(chunkData, x, y, z, BlockFace::West))
{
mesh.m_vertices.insert(
mesh.m_vertices.end(),
{
0.0f + x, 0.0f + y, 0.0f + z, 0.0f, 0.0f,
0.0f + x, 1.0f + y, 0.0f + z, 0.0f, 1.0f,
0.0f + x, 1.0f + y, 1.0f + z, 1.0f, 1.0f,
0.0f + x, 0.0f + y, 1.0f + z, 1.0f, 0.0f
}
);
mesh.m_indices.insert(
mesh.m_indices.end(),
{
0 + indicesOffset, 1 + indicesOffset, 2 + indicesOffset,
0 + indicesOffset, 2 + indicesOffset, 3 + indicesOffset
}
);
indicesOffset += 4;
}
if(isAirNearBlockFace(chunkData, x, y, z, BlockFace::East))
{
mesh.m_vertices.insert(
mesh.m_vertices.end(),
{
1.0f + x, 0.0f + y, 1.0f + z, 0.0f, 0.0f,
1.0f + x, 1.0f + y, 1.0f + z, 0.0f, 1.0f,
1.0f + x, 1.0f + y, 0.0f + z, 1.0f, 1.0f,
1.0f + x, 0.0f + y, 0.0f + z, 1.0f, 0.0f
}
);
mesh.m_indices.insert(
mesh.m_indices.end(),
{
0 + indicesOffset, 1 + indicesOffset, 2 + indicesOffset,
0 + indicesOffset, 2 + indicesOffset, 3 + indicesOffset
}
);
indicesOffset += 4;
}
if(isAirNearBlockFace(chunkData, x, y, z, BlockFace::Bottom))
{
mesh.m_vertices.insert(
mesh.m_vertices.end(),
{
0.0f + x, 0.0f + y, 0.0f + z, 0.0f, 0.0f,
0.0f + x, 0.0f + y, 1.0f + z, 0.0f, 1.0f,
1.0f + x, 0.0f + y, 1.0f + z, 1.0f, 1.0f,
1.0f + x, 0.0f + y, 0.0f + z, 1.0f, 0.0f
}
);
mesh.m_indices.insert(
mesh.m_indices.end(),
{
0 + indicesOffset, 1 + indicesOffset, 2 + indicesOffset,
0 + indicesOffset, 2 + indicesOffset, 3 + indicesOffset
}
);
indicesOffset += 4;
}
if(isAirNearBlockFace(chunkData, x, y, z, BlockFace::Top))
{
mesh.m_vertices.insert(
mesh.m_vertices.end(),
{
0.0f + x, 1.0f + y, 1.0f + z, 0.0f, 0.0f,
0.0f + x, 1.0f + y, 0.0f + z, 0.0f, 1.0f,
1.0f + x, 1.0f + y, 0.0f + z, 1.0f, 1.0f,
1.0f + x, 1.0f + y, 1.0f + z, 1.0f, 0.0f
}
);
mesh.m_indices.insert(
mesh.m_indices.end(),
{
0 + indicesOffset, 1 + indicesOffset, 2 + indicesOffset,
0 + indicesOffset, 2 + indicesOffset, 3 + indicesOffset
}
);
indicesOffset += 4;
}
}
}
}
}
return mesh;
}
/**
* @brief Get the position of the chunk vector and the nested vectors.
* @return The position of the chunk vector.
*/
inline Position getPosition() {
return Position(curChunkIndex, curChunk->getUsedSize(), nested.getPosition());
}
/**
* @brief The position inside the data of the current chunk.
* @return The current position in the current chunk.
*/
inline size_t getChunkPosition() {
return curChunk->getUsedSize();
}
ChunkData *ChunkData::Create(Chunk *chunk, ResourceManager *resourceManager)
{
const uint32_t DATA_VTX_COUNT = MAX_VERTS / MAX_SLICES;
CustomVertex *data = (CustomVertex*)malloc(sizeof(CustomVertex) * DATA_VTX_COUNT);
if(!data)
return nullptr;
memset(data, 0, DATA_VTX_COUNT * sizeof(CustomVertex));
uint32_t total_size = 0;
// TODO: maybe allow putting more than one section per slice if we end up with more than 16 sections.
// currently minecraft only uses 16 sections per chunk.
//assert(num_sections <= MAX_SLICES);
int32_t x_off = chunk->x() * 16;
int32_t z_off = chunk->z() * 16;
ChunkData *cdata = new ChunkData(chunk->x(), chunk->z());
CustomVertex *dptr = data; // reset dptr, reuse data memory.
for(uint32_t i = 0; i < chunk->sectionCount(); i++)
{
ChunkSection *section = chunk->getSection(i);
if(!section)
continue;
//NBT_Debug("new section[%i]: %p", i, section);
int32_t y = section->y() * 16;
//int32_t y = section_y * 16;
#ifdef VIEWER_USE_MORE_VBOS
dptr = data;
total_size = 0;
#endif
for(int dy = 0; dy < 16; dy++)
{
for(int dz = 0; dz < 16; dz++)
{
for(int dx = 0; dx < 16; dx++)
{
BlockAddress baddr;
if(!chunk->getBlockAddress(x_off + dx, y + dy, z_off + dz, &baddr))
{
NBT_Debug("failed to find block %i, %i, %i", x_off + dx, y + dy, z_off + dz);
assert(nullptr);
continue;
}
//NBT_Debug("block %i,%i,%i: %s", x_off+dx, y+dy, z_off+dz, baddr.toString().c_str());
BlockInfo bi;
chunk->getBlockInfo(baddr, &bi);
//NBT_Debug("blockInfo: %i:%i:%s", bi.id, bi.data, bi.state_name);
Resource::ID rid = resourceManager->getModelVariant(bi);
if(rid == Resource::INVALID_ID)
{
//NBT_Debug("failed to get model %i:%i:%s", bi.id, bi.data, bi.state_name);
continue;
}
//if(bi.id != BLOCK_AIR && bi.id != BLOCK_BARRIER)
// NBT_Debug("block:%i:%i %s", bi.id, bi.data, bi.state_name);
ResourceModelVariant *var = resourceManager->getModelVariantResource(rid);
uint32_t vertex_count = var->getVertexCount();
CustomVertex *verticies = var->getVertexData();
for(uint32_t i = 0; i < vertex_count; i++)
{
CustomVertex &v = verticies[i], &cv = dptr[i];
float xoff = cdata->x() + dx, yoff = y + dy, zoff = cdata->z() + dz;
cv.pos = { v.pos.f1 + xoff, v.pos.f2 + yoff, v.pos.f3 + zoff };
//cv.txcoord = { (v.txcoord.f1 * tx_xfact + tx_x), 1-(v.txcoord.f2 * tx_yfact + tx_y) };
cv.txcoord = { v.txcoord.f1 , 1-v.txcoord.f2 };
// { 0.25 + 0.25 * v.txcoord.f1, 0.25 + 0.25 * v.txcoord.f2 };
//NBT_Debug("tex: %f, %f", cv.txcoord.f1, cv.txcoord.f2);
cv.tx_page = v.tx_page;
cv.color = v.color;
}
dptr += vertex_count;
total_size += vertex_count;
}
}
}
#ifdef VIEWER_USE_MORE_VBOS
if(total_size > 0)
if(!cdata->fillSlice(section->y(), data, total_size))
NBT_Warn("failed to fill slice %i???", y);
#endif
}
#ifndef VIEWER_USE_MORE_VBOS
if(total_size)
if(!cdata->fillSlice(0, data, total_size))
NBT_Warn("failed to fill chunk data");
#endif
free(data);
return cdata;
}
CODI_INLINE void getDataPointer(Pointers* &... pointers) {
curChunk->dataPointer(curChunk->usedSize, pointers...);
}
/**
* @brief The position inside the data of the current chunk.
* @return The current position in the current chunk.
*/
CODI_INLINE size_t getChunkPosition() const {
return curChunk->getUsedSize();
}
/**
* @brief Get the position of the chunk vector and the nested vectors.
* @return The position of the chunk vector.
*/
CODI_INLINE Position getPosition() const {
return Position(curChunkIndex, curChunk->getUsedSize(), nested->getPosition());
}
std::string World::serialize(const Vector2i &chunkId)
{
ProtocolMessage msg;
ChunkData *chunkData = new ChunkData;
VectorInt *vecInt;
std::string serialized;
Chunk *chunk;
unsigned int fgcont = 0;
unsigned int bgcont = 0;
TileType fgtile;
TileType bgtile;
TileType oldfgtile;
TileType oldbgtile;
if ((chunk = getChunk(chunkId)) != nullptr)
{
for (unsigned int y = 0; y < Chunk::height; ++y)
{
for (unsigned int x = 0; x < Chunk::width; ++x)
{
fgtile = chunk->getTile(x, y);
bgtile = chunk->getBgTile(x, y);
if (x == 0 && y == 0)
{
oldfgtile = fgtile;
oldbgtile = bgtile;
}
else
{
if (fgtile != oldfgtile)
{
chunkData->add_fgnumber(fgcont);
chunkData->add_fgtilecode(static_cast<unsigned int>(oldfgtile));
fgcont = 0;
oldfgtile = fgtile;
}
if (bgtile != oldbgtile)
{
chunkData->add_bgnumber(bgcont);
chunkData->add_bgtilecode(static_cast<unsigned int>(oldbgtile));
bgcont = 0;
oldbgtile = bgtile;
}
}
++fgcont;
++bgcont;
}
}
}
chunkData->add_bgnumber(bgcont);
chunkData->add_bgtilecode(static_cast<unsigned int>(oldbgtile));
chunkData->add_fgnumber(fgcont);
chunkData->add_fgtilecode(static_cast<unsigned int>(oldfgtile));
vecInt = new VectorInt;
vecInt->set_x(chunkId.x);
vecInt->set_y(chunkId.y);
chunkData->set_allocated_id(vecInt);
msg.set_content(ProtocolMessage::CHUNK);
msg.set_allocated_chunkdata(chunkData);
msg.SerializeToString(&serialized);
return serialized;
}
/**
* @brief Sets the data and increases the used chunk data by one.
*
* This method should only be called if 'reserveItems' was called
* beforehand with enough items to accommodate to all calls to this
* method.
*
* @param data The data set to the current position in the chunk.
*/
inline void setDataAndMove(const typename ChunkData::DataValues& data) {
// this method should only be called if reserveItems has been called
curChunk->setDataAndMove(data);
}
