, neighbor{0}
, blocks{}
, light{0}
+, generated(false)
+, lighted(false)
, position(0, 0, 0)
, ref_count(0)
, dirty_model(false)
blocks[index] = block;
Invalidate();
- if (&old_type == &new_type) return;
+ if (!lighted || &old_type == &new_type) return;
if (new_type.luminosity > old_type.luminosity) {
// light added
}
}
-namespace {
-
-// propagate light from a's edge to b
-void edge_light(
- Chunk &a, const Chunk::Pos &a_pos,
- Chunk &b, const Chunk::Pos &b_pos
-) noexcept {
- if (a.GetLight(a_pos) > 1) {
- const BlockType &b_type = b.Type(Chunk::ToIndex(b_pos));
- if (!b_type.block_light) {
- light_queue.emplace(&a, a_pos);
- }
- if (b_type.visible) {
- b.Invalidate();
+void Chunk::ScanLights() {
+ int idx = 0;
+ Pos pos(0, 0, 0);
+ for (; pos.z < depth; ++pos.z) {
+ for (pos.y = 0; pos.y < height; ++pos.y) {
+ for (pos.x = 0; pos.x < width; ++pos.x, ++idx) {
+ const BlockType &type = Type(blocks[idx]);
+ if (type.luminosity) {
+ SetLight(idx, type.luminosity);
+ light_queue.emplace(this, pos);
+ }
+ }
}
}
-}
-
+ work_light();
+ lighted = true;
}
void Chunk::SetNeighbor(Block::Face face, Chunk &other) noexcept {
neighbor[face] = &other;
other.neighbor[Block::Opposite(face)] = this;
-
- switch (face) {
-
- default:
- // error
- break;
-
- case Block::FACE_LEFT:
- for (int z = 0; z < depth; ++z) {
- for (int y = 0; y < height; ++y) {
- Pos my_pos(0, y, z);
- Pos other_pos(width - 1, y, z);
- edge_light(*this, my_pos, other, other_pos);
- edge_light(other, other_pos, *this, my_pos);
- }
- }
- break;
-
- case Block::FACE_RIGHT:
- for (int z = 0; z < depth; ++z) {
- for (int y = 0; y < height; ++y) {
- Pos my_pos(width - 1, y, z);
- Pos other_pos(0, y, z);
- edge_light(*this, my_pos, other, other_pos);
- edge_light(other, other_pos, *this, my_pos);
- }
- }
- break;
-
- case Block::FACE_DOWN:
- for (int z = 0; z < depth; ++z) {
- for (int x = 0; x < width; ++x) {
- Pos my_pos(x, 0, z);
- Pos other_pos(x, height - 1, z);
- edge_light(*this, my_pos, other, other_pos);
- edge_light(other, other_pos, *this, my_pos);
- }
- }
- break;
-
- case Block::FACE_UP:
- for (int z = 0; z < depth; ++z) {
- for (int x = 0; x < width; ++x) {
- Pos my_pos(x, height - 1, z);
- Pos other_pos(x, 0, z);
- edge_light(*this, my_pos, other, other_pos);
- edge_light(other, other_pos, *this, my_pos);
- }
- }
- break;
-
- case Block::FACE_BACK:
- for (int y = 0; y < height; ++y) {
- for (int x = 0; x < width; ++x) {
- Pos my_pos(x, y, 0);
- Pos other_pos(x, y, depth - 1);
- edge_light(*this, my_pos, other, other_pos);
- edge_light(other, other_pos, *this, my_pos);
- }
- }
- break;
-
- case Block::FACE_FRONT:
- for (int y = 0; y < height; ++y) {
- for (int x = 0; x < width; ++x) {
- Pos my_pos(x, y, depth - 1);
- Pos other_pos(x, y, 0);
- edge_light(*this, my_pos, other, other_pos);
- edge_light(other, other_pos, *this, my_pos);
- }
- }
- break;
-
- }
- work_light();
}
void Chunk::Unlink() noexcept {
return false;
}
+ bool generated = false;
if (save.Exists(pos)) {
save.Read(*chunk);
- return false;
} else {
gen(*chunk);
- return true;
+ generated = true;
}
+
+ ChunkIndex *index = store.ClosestIndex(pos);
+ if (!index) {
+ return generated;
+ }
+
+ Chunk::Pos begin(pos - Chunk::Pos(1));
+ Chunk::Pos end(pos + Chunk::Pos(2));
+ for (Chunk::Pos iter(begin); iter.z < end.z; ++iter.z) {
+ for (iter.y = begin.y; iter.y < end.y; ++iter.y) {
+ for (iter.x = begin.x; iter.x < end.x; ++iter.x) {
+ if (index->IsBorder(iter)) continue;
+ Chunk *light_chunk = index->Get(iter);
+ if (!light_chunk || light_chunk->Lighted()) continue;
+ if (index->HasAllSurrounding(iter)) {
+ light_chunk->ScanLights();
+ }
+ }
+ }
+ }
+
+ return generated;
}
void ChunkLoader::LoadN(std::size_t n) {
}
bool ChunkIndex::InRange(const Chunk::Pos &pos) const noexcept {
- return manhattan_radius(pos - base) <= extent;
+ return Distance(pos) <= extent;
+}
+
+bool ChunkIndex::IsBorder(const Chunk::Pos &pos) const noexcept {
+ return Distance(pos) == extent;
+}
+
+int ChunkIndex::Distance(const Chunk::Pos &pos) const noexcept {
+ return manhattan_radius(pos - base);
+}
+
+bool ChunkIndex::HasAllSurrounding(const Chunk::Pos &pos) const noexcept {
+ Chunk::Pos begin(pos - Chunk::Pos(1));
+ Chunk::Pos end(pos + Chunk::Pos(2));
+ for (Chunk::Pos iter(begin); iter.z < end.z; ++iter.z) {
+ for (iter.y = begin.y; iter.y < end.y; ++iter.y) {
+ for (iter.x = begin.x; iter.x < end.x; ++iter.x) {
+ if (!Get(iter)) return false;
+ }
+ }
+ }
+ return true;
}
int ChunkIndex::IndexOf(const Chunk::Pos &pos) const noexcept {
}
}
+ChunkIndex *ChunkStore::ClosestIndex(const Chunk::Pos &pos) {
+ ChunkIndex *closest_index = nullptr;
+ int closest_distance = std::numeric_limits<int>::max();
+
+ for (ChunkIndex &index : indices) {
+ int distance = index.Distance(pos);
+ if (distance < closest_distance) {
+ closest_index = &index;
+ closest_distance = distance;
+ }
+ }
+
+ return closest_index;
+}
+
Chunk *ChunkStore::Get(const Chunk::Pos &pos) {
for (ChunkIndex &index : indices) {
Chunk *chunk = index.Get(pos);
void ChunkStore::Clean() {
for (auto i = loaded.begin(), end = loaded.end(); i != end;) {
- if (i->Referenced()) {
+ if (i->Referenced() || i->ShouldUpdateSave()) {
++i;
} else {
auto chunk = i;
projects / blank.git / blobdiff