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Some ActiveBlockList improvements

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Lars 2025-05-04 22:26:06 -07:00 • committed by lhofhansl
parent 34e73da424
commit 05513467b6
1 changed files with 22 additions and 32 deletions
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54
src/serverenvironment.cpp
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@ -55,15 +55,14 @@ static void fillRadiusBlock(v3s16 p0, s16 r, std::set<v3s16> &list)
{
v3s16 p;
for(p.X=p0.X-r; p.X<=p0.X+r; p.X++)
for(p.Y=p0.Y-r; p.Y<=p0.Y+r; p.Y++)
for(p.Z=p0.Z-r; p.Z<=p0.Z+r; p.Z++)
{
// limit to a sphere
if (p.getDistanceFrom(p0) <= r) {
// Set in list
list.insert(p);
}
}
for(p.Y=p0.Y-r; p.Y<=p0.Y+r; p.Y++)
for(p.Z=p0.Z-r; p.Z<=p0.Z+r; p.Z++) {
// limit to a sphere
if (p.getDistanceFrom(p0) <= r) {
// Set in list
list.insert(p);
}
}
}
static void fillViewConeBlock(v3s16 p0,
@ -119,30 +118,23 @@ void ActiveBlockList::update(std::vector<PlayerSAO*> &active_players,
m_abm_list = newlist;
/*
Find out which blocks on the new list are not on the old list
*/
// 1. Find out which blocks on the new list are not on the old list
std::set_difference(newlist.begin(), newlist.end(), m_list.begin(), m_list.end(),
std::inserter(blocks_added, blocks_added.end()));
// 2. remove duplicate blocks from the extra list
for (v3s16 p : newlist) {
// also remove duplicate blocks from the extra list
extralist.erase(p);
// If not on old list, it's been added
if (m_list.find(p) == m_list.end())
blocks_added.insert(p);
}
/*
Find out which blocks on the extra list are not on the old list
*/
for (v3s16 p : extralist) {
// also make sure newlist has all blocks
newlist.insert(p);
// If not on old list, it's been added
if (m_list.find(p) == m_list.end())
extra_blocks_added.insert(p);
}
/*
Find out which blocks on the old list are not on the new + extra list
*/
// 3. Find out which blocks on the extra list are not on the old list
std::set_difference(extralist.begin(), extralist.end(), m_list.begin(), m_list.end(),
std::inserter(extra_blocks_added, extra_blocks_added.end()));
// 4. make sure newlist has all new block
newlist.insert(extralist.begin(), extralist.end());
// 5. Find out which blocks on the old list are not on the new + extra list
std::set_difference(m_list.begin(), m_list.end(), newlist.begin(), newlist.end(),
std::inserter(blocks_removed, blocks_removed.end()));
@ -167,9 +159,7 @@ void ActiveBlockList::update(std::vector<PlayerSAO*> &active_players,
assert(m_list.count(*blocks_removed.begin()) > 0);
}
/*
Update m_list
*/
// Update m_list
m_list = std::move(newlist);
}