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authorLaG1924 <12997935+LaG1924@users.noreply.github.com>2017-09-15 17:46:56 +0200
committerLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-01-13 03:39:31 +0100
commitdcd030c6ed41e080846d1d50cf82e1055ae48edd (patch)
tree791bf81717a40273fcd6f72b06d3eb24c0c94b1a /src/Section.cpp
parent2017-09-03 (diff)
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Diffstat (limited to 'src/Section.cpp')
-rw-r--r--src/Section.cpp46
1 files changed, 32 insertions, 14 deletions
diff --git a/src/Section.cpp b/src/Section.cpp
index 554cdbf..67dde70 100644
--- a/src/Section.cpp
+++ b/src/Section.cpp
@@ -2,14 +2,26 @@
#include <bitset>
-void Section::CalculateHash() {
- std::vector<unsigned char> rawData;
- rawData.reserve(block.size() * sizeof(long long) + light.size() + sky.size());
- std::copy(block.begin(), block.end(), std::back_inserter(rawData));
- std::copy(light.begin(), light.end(), std::back_inserter(rawData));
+void Section::CalculateHash() const {
+ size_t offset = 0;
+
+ std::vector<unsigned char> rawData;
+ rawData.resize(block.size() * sizeof(long long) + light.size() + sky.size());
+
+ std::memcpy(rawData.data() + offset, block.data(), block.size() * sizeof(BlockId));
+ offset += block.size() * sizeof(BlockId);
+
+ std::memcpy(rawData.data() + offset, light.data(), light.size() * sizeof(unsigned char));
+ offset += light.size() * sizeof(unsigned char);
+
if (!sky.empty())
- std::copy(sky.begin(), sky.end(), std::back_inserter(rawData));
+ std::memcpy(rawData.data() + offset, sky.data(), sky.size() * sizeof(unsigned char));
+ for (auto& it : overrideList) {
+ rawData.push_back(*reinterpret_cast<const unsigned short*> (&it.second) & 0xF);
+ rawData.push_back(*reinterpret_cast<const unsigned short*> (&it.second) >> 0xF);
+ }
+
const unsigned char *from = reinterpret_cast<const unsigned char *>(rawData.data());
size_t length = rawData.size();
@@ -30,12 +42,10 @@ Section::Section(Vector pos, unsigned char bitsPerBlock, std::vector<unsigned sh
this->light = std::move(lightData);
this->sky = std::move(skyData);
- CalculateHash();
+ hash = -1;
}
-Section::Section() {
-
- CalculateHash();
+Section::Section():hash(-1),bitsPerBlock(0) {
}
Section::~Section() {
@@ -45,19 +55,24 @@ Section::~Section() {
Section::Section(Section && other) noexcept {
using std::swap;
swap(*this, other);
- CalculateHash();
+ hash = -1;
}
Section &Section::operator=(Section other) noexcept {
using std::swap;
swap(*this, other);
- CalculateHash();
+ hash = -1;
return *this;
}
BlockId Section::GetBlockId(Vector pos) const {
if (block.empty())
return BlockId{ 0,0 };
+
+ auto iter = overrideList.find(pos);
+ if (iter != overrideList.end())
+ return iter->second;
+
int value;
unsigned char individualValueMask = ((1 << bitsPerBlock) - 1);
@@ -67,7 +82,7 @@ BlockId Section::GetBlockId(Vector pos) const {
int startOffset = (blockNumber * bitsPerBlock) % 64;
int endLong = ((blockNumber + 1) * bitsPerBlock - 1) / 64;
- unsigned short t;
+ unsigned char t;
if (startLong == endLong) {
t = (block[startLong] >> startOffset);
@@ -108,7 +123,8 @@ unsigned char Section::GetBlockSkyLight(Vector pos) const
}
void Section::SetBlockId(Vector pos, BlockId value) {
- LOG(WARNING) << "Block changing not implemented!";
+ overrideList[pos] = value;
+ hash = -1;
}
void swap(Section& lhs, Section& rhs) noexcept {
@@ -137,5 +153,7 @@ Vector Section::GetPosition() const {
}
size_t Section::GetHash() const {
+ if (hash == -1)
+ CalculateHash();
return hash;
} \ No newline at end of file