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Enhance ABM performance a little bit by removing two std::set copy (#5815)

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* Enhance ABM performance a little bit by removing two std::set copy

* ActiveBlockModifier::getTriggerContents now returns a const ref
* ActiveBlockModifier::getRequiredNeighbors now returns a const ref
* ActiveBlockModifier::getRequiredNeighbors is now purely virtual

* Little code style fix
This commit is contained in:
Loïc Blot 2017-05-25 16:43:55 +02:00 • committed by GitHub
parent 5b338638e0
commit 4d5ce8478c
3 changed files with 18 additions and 21 deletions
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30
src/serverenvironment.cpp
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@ -721,7 +721,7 @@ public:
chance = 1;
ActiveABM aabm;
aabm.abm = abm;
if(abm->getSimpleCatchUp()) {
if (abm->getSimpleCatchUp()) {
float intervals = actual_interval / trigger_interval;
if(intervals == 0)
continue;
@ -731,25 +731,23 @@ public:
} else {
aabm.chance = chance;
}
// Trigger neighbors
std::set<std::string> required_neighbors_s
= abm->getRequiredNeighbors();
for(std::set<std::string>::iterator
i = required_neighbors_s.begin();
i != required_neighbors_s.end(); ++i)
{
ndef->getIds(*i, aabm.required_neighbors);
const std::set<std::string> &required_neighbors_s =
abm->getRequiredNeighbors();
for (std::set<std::string>::iterator rn = required_neighbors_s.begin();
rn != required_neighbors_s.end(); ++rn) {
ndef->getIds(*rn, aabm.required_neighbors);
}
// Trigger contents
std::set<std::string> contents_s = abm->getTriggerContents();
for(std::set<std::string>::iterator
i = contents_s.begin(); i != contents_s.end(); ++i)
{
const std::set<std::string> &contents_s = abm->getTriggerContents();
for (std::set<std::string>::iterator cs = contents_s.begin();
cs != contents_s.end(); ++cs) {
std::set<content_t> ids;
ndef->getIds(*i, ids);
for(std::set<content_t>::const_iterator k = ids.begin();
k != ids.end(); ++k)
{
ndef->getIds(*cs, ids);
for (std::set<content_t>::const_iterator k = ids.begin();
k != ids.end(); ++k) {
content_t c = *k;
if (c >= m_aabms.size())
m_aabms.resize(c + 256, NULL);