Chunk::Chunk(const BlockTypeRegistry &types) noexcept
: types(&types)
, neighbor{0}
+, gravity()
, blocks{}
, light{0}
, generated(false)
Chunk::Chunk(Chunk &&other) noexcept
: types(other.types)
+, gravity(std::move(other.gravity))
, generated(other.generated)
, lighted(other.lighted)
, position(other.position)
Chunk &Chunk::operator =(Chunk &&other) noexcept {
types = other.types;
std::copy(other.neighbor, other.neighbor + sizeof(neighbor), neighbor);
+ gravity = std::move(other.gravity);
std::copy(other.blocks, other.blocks + sizeof(blocks), blocks);
std::copy(other.light, other.light + sizeof(light), light);
generated = other.generated;
blocks[index] = block;
Invalidate();
+ if (old_type.gravity && !new_type.gravity) {
+ gravity.erase(index);
+ } else if (new_type.gravity && !old_type.gravity) {
+ gravity.insert(index);
+ }
+
if (!lighted || &old_type == &new_type) return;
if (new_type.luminosity > old_type.luminosity) {
lighted = true;
}
+void Chunk::ScanActive() {
+ gravity.clear();
+ for (int index = 0; index < size; ++index) {
+ if (Type(index).gravity) {
+ gravity.insert(gravity.end(), index);
+ }
+ }
+}
+
void Chunk::SetNeighbor(Block::Face face, Chunk &other) noexcept {
neighbor[face] = &other;
other.neighbor[Block::Opposite(face)] = this;
}
+glm::vec3 Chunk::GravityAt(const ExactLocation &coords) const noexcept {
+ glm::vec3 grav;
+ for (int index : gravity) {
+ RoughLocation::Fine block_pos(ToPos(index));
+ ExactLocation block_coords(position, ToCoords(block_pos));
+ // trust that block type hasn't changed
+ grav += Type(index).gravity->GetGravity(
+ coords.Difference(block_coords).Absolute(),
+ ToTransform(block_pos, index));
+ }
+ return grav;
+}
+
+
bool Chunk::IsSurface(const RoughLocation::Fine &pos) const noexcept {
const Block &block = BlockAt(pos);
if (!Type(block).visible) {
for (int i = 0; i < index.TotalChunks(); ++i) {
if (!index[i]) continue;
+ // TODO: optimize chunk culling, shoudn't be that hard
glm::mat4 m(index[i]->Transform(index.Base()));
glm::mat4 mvp(chunk_prog.GetVP() * m);
if (!CullTest(Chunk::Bounds(), mvp)) {