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Chunk: allow generating unlighted maps for chunks without light data

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This commit is contained in:
Matthias Schiffer 2015-09-19 23:01:41 +09:00
parent d677440f6d
commit c80f54cba7
1 changed files with 13 additions and 8 deletions
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21
src/World/Chunk.cpp
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@ -99,8 +99,7 @@ void Chunk::parseChunk() {
void Chunk::analyzeChunk() {
std::shared_ptr<const NBT::ByteTag> lightPopulatedTag = level->get<NBT::ByteTag>("LightPopulated");
if (!(lightPopulatedTag && lightPopulatedTag->getValue()))
throw std::invalid_argument("light data missing");
bool lightPopulated = lightPopulatedTag && lightPopulatedTag->getValue();
sections = assertValue(level->get<NBT::ListTag<NBT::CompoundTag>>("Sections"));
maxY = (assertValue(sections->back()->get<NBT::ByteTag>("Y"))->getValue() + 1) * SIZE;
@ -126,18 +125,24 @@ void Chunk::analyzeChunk() {
for (auto &section : *sections) {
std::shared_ptr<const NBT::ByteArrayTag> blocks = assertValue(section->get<NBT::ByteArrayTag>("Blocks"));
std::shared_ptr<const NBT::ByteArrayTag> data = assertValue(section->get<NBT::ByteArrayTag>("Data"));
std::shared_ptr<const NBT::ByteArrayTag> blockLight = assertValue(section->get<NBT::ByteArrayTag>("BlockLight"));
std::shared_ptr<const NBT::ByteArrayTag> skyLight = assertValue(section->get<NBT::ByteArrayTag>("SkyLight"));
size_t Y = assertValue(section->get<NBT::ByteTag>("Y"))->getValue();
if (blocks->getLength() != SIZE*SIZE*SIZE || data->getLength() != SIZE*SIZE*SIZE/2
|| blockLight->getLength() != SIZE*SIZE*SIZE/2 || skyLight->getLength() != SIZE*SIZE*SIZE/2)
if (blocks->getLength() != SIZE*SIZE*SIZE || data->getLength() != SIZE*SIZE*SIZE/2)
throw std::invalid_argument("corrupt chunk data");
if (lightPopulated) {
std::shared_ptr<const NBT::ByteArrayTag> blockLight = assertValue(section->get<NBT::ByteArrayTag>("BlockLight"));
std::shared_ptr<const NBT::ByteArrayTag> skyLight = assertValue(section->get<NBT::ByteArrayTag>("SkyLight"));
if (blockLight->getLength() != SIZE*SIZE*SIZE/2 || skyLight->getLength() != SIZE*SIZE*SIZE/2)
throw std::invalid_argument("corrupt chunk data");
std::memcpy(blockBlockLight.get() + Y*SIZE*SIZE*SIZE/2, blockLight->getValue(), SIZE*SIZE*SIZE/2);
std::memcpy(blockSkyLight.get() + Y*SIZE*SIZE*SIZE/2, skyLight->getValue(), SIZE*SIZE*SIZE/2);
}
std::memcpy(blockIDs.get() + Y*SIZE*SIZE*SIZE, blocks->getValue(), SIZE*SIZE*SIZE);
std::memcpy(blockData.get() + Y*SIZE*SIZE*SIZE/2, data->getValue(), SIZE*SIZE*SIZE/2);
std::memcpy(blockBlockLight.get() + Y*SIZE*SIZE*SIZE/2, blockLight->getValue(), SIZE*SIZE*SIZE/2);
std::memcpy(blockSkyLight.get() + Y*SIZE*SIZE*SIZE/2, skyLight->getValue(), SIZE*SIZE*SIZE/2);
}
}