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#include "StarNetElementGroup.hpp"
namespace Star {
void NetElementGroup::addNetElement(NetElement* element, bool propagateInterpolation) {
starAssert(!m_elements.any([element](auto p) { return p.first == element; }));
element->initNetVersion(m_version);
if (m_interpolationEnabled && propagateInterpolation)
element->enableNetInterpolation(m_extrapolationHint);
m_elements.append(pair<NetElement*, bool>(element, propagateInterpolation));
}
void NetElementGroup::clearNetElements() {
m_elements.clear();
m_filteredForRules.reset();
m_filteredElementsCache.clear();
}
void NetElementGroup::initNetVersion(NetElementVersion const* version) {
m_version = version;
for (auto& p : m_elements)
p.first->initNetVersion(m_version);
}
void NetElementGroup::netStore(DataStream& ds, NetCompatibilityRules rules) const {
if (!checkWithRules(rules)) return;
for (auto& p : m_elements)
if (p.first->checkWithRules(rules))
p.first->netStore(ds, rules);
}
void NetElementGroup::netLoad(DataStream& ds, NetCompatibilityRules rules) {
if (!checkWithRules(rules)) return;
for (auto& p : m_elements)
if (p.first->checkWithRules(rules))
p.first->netLoad(ds, rules);
}
void NetElementGroup::enableNetInterpolation(float extrapolationHint) {
m_interpolationEnabled = true;
m_extrapolationHint = extrapolationHint;
for (auto& p : m_elements) {
if (p.second)
p.first->enableNetInterpolation(extrapolationHint);
}
}
void NetElementGroup::disableNetInterpolation() {
m_interpolationEnabled = false;
m_extrapolationHint = 0;
for (auto& p : m_elements) {
if (p.second)
p.first->disableNetInterpolation();
}
}
void NetElementGroup::tickNetInterpolation(float dt) {
if (m_interpolationEnabled) {
for (auto& p : m_elements)
p.first->tickNetInterpolation(dt);
}
}
bool NetElementGroup::writeNetDelta(DataStream& ds, uint64_t fromVersion, NetCompatibilityRules rules) const {
if (!checkWithRules(rules)) return false;
if (m_elements.size() == 0) {
return false;
} else if (m_elements.size() == 1) {
return m_elements[0].first->writeNetDelta(ds, fromVersion, rules);
} else {
bool deltaWritten = false;
uint64_t i = 0;
m_buffer.setStreamCompatibilityVersion(rules);
for (auto& element : m_elements) {
if (!element.first->checkWithRules(rules))
continue;
++i;
if (element.first->writeNetDelta(m_buffer, fromVersion, rules)) {
deltaWritten = true;
ds.writeVlqU(i);
ds.writeBytes(m_buffer.data());
m_buffer.clear();
}
}
if (deltaWritten)
ds.writeVlqU(0);
return deltaWritten;
}
}
void NetElementGroup::readNetDelta(DataStream& ds, float interpolationTime, NetCompatibilityRules rules) {
if (!checkWithRules(rules)) return;
auto& elements = filterElementsForRules(rules);
if (elements.size() == 0) {
if (m_elements.size() == 0)
throw IOException("readNetDelta called on empty NetElementGroup");
} else if (elements.size() == 1) {
elements[0]->readNetDelta(ds, interpolationTime, rules);
} else {
uint64_t readIndex = ds.readVlqU();
for (uint64_t i = 0; i != elements.size(); ++i) {
if (readIndex == 0 || readIndex - 1 > i) {
if (m_interpolationEnabled)
elements[i]->blankNetDelta(interpolationTime);
} else if (readIndex - 1 == i) {
elements[i]->readNetDelta(ds, interpolationTime);
readIndex = ds.readVlqU();
} else {
throw IOException("group indexes out of order in NetElementGroup::readNetDelta");
}
}
}
}
void NetElementGroup::blankNetDelta(float interpolationTime) {
if (m_interpolationEnabled) {
for (auto& p : m_elements)
p.first->blankNetDelta(interpolationTime);
}
}
List<NetElement*>& NetElementGroup::filterElementsForRules(NetCompatibilityRules rules) {
if (!m_filteredForRules || m_filteredForRules != rules) {
m_filteredForRules = rules;
m_filteredElementsCache.clear();
m_filteredElementsCache.reserve(m_elements.size());
for (auto& element : m_elements) {
if (element.first->checkWithRules(rules))
m_filteredElementsCache.push_back(element.first);
}
}
return m_filteredElementsCache;
}
}
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