1 files changed, 88 insertions, 0 deletions
diff --git a/source/core/StarNetElementSyncGroup.cpp b/source/core/StarNetElementSyncGroup.cpp
new file mode 100644
index 0000000..4ead00f
--- /dev/null
+++ b/source/core/StarNetElementSyncGroup.cpp
@@ -0,0 +1,88 @@
+#include "StarNetElementSyncGroup.hpp"
+
+namespace Star {
+
+void NetElementSyncGroup::enableNetInterpolation(float extrapolationHint) {
+  NetElementGroup::enableNetInterpolation(extrapolationHint);
+  if (m_hasRecentChanges)
+    netElementsNeedLoad(false);
+}
+
+void NetElementSyncGroup::disableNetInterpolation() {
+  NetElementGroup::disableNetInterpolation();
+  if (m_hasRecentChanges)
+    netElementsNeedLoad(false);
+}
+
+void NetElementSyncGroup::tickNetInterpolation(float dt) {
+  NetElementGroup::tickNetInterpolation(dt);
+  if (m_hasRecentChanges) {
+    m_recentDeltaTime -= dt;
+    if (netInterpolationEnabled())
+      netElementsNeedLoad(false);
+
+    if (m_recentDeltaTime < 0.0f && m_recentDeltaWasBlank)
+      m_hasRecentChanges = false;
+  }
+}
+
+void NetElementSyncGroup::netStore(DataStream& ds) const {
+  const_cast<NetElementSyncGroup*>(this)->netElementsNeedStore();
+  return NetElementGroup::netStore(ds);
+}
+
+void NetElementSyncGroup::netLoad(DataStream& ds) {
+  NetElementGroup::netLoad(ds);
+  netElementsNeedLoad(true);
+}
+
+bool NetElementSyncGroup::writeNetDelta(DataStream& ds, uint64_t fromVersion) const {
+  const_cast<NetElementSyncGroup*>(this)->netElementsNeedStore();
+  return NetElementGroup::writeNetDelta(ds, fromVersion);
+}
+
+void NetElementSyncGroup::readNetDelta(DataStream& ds, float interpolationTime) {
+  NetElementGroup::readNetDelta(ds, interpolationTime);
+
+  m_hasRecentChanges = true;
+  m_recentDeltaTime = interpolationTime;
+  m_recentDeltaWasBlank = false;
+
+  netElementsNeedLoad(false);
+}
+
+void NetElementSyncGroup::blankNetDelta(float interpolationTime) {
+  NetElementGroup::blankNetDelta(interpolationTime);
+
+  if (!m_recentDeltaWasBlank) {
+    m_recentDeltaTime = interpolationTime;
+    m_recentDeltaWasBlank = true;
+  }
+
+  if (m_hasRecentChanges && netInterpolationEnabled())
+    netElementsNeedLoad(false);
+}
+
+void NetElementSyncGroup::netElementsNeedLoad(bool) {}
+
+void NetElementSyncGroup::netElementsNeedStore() {}
+
+void NetElementCallbackGroup::setNeedsLoadCallback(function<void(bool)> needsLoadCallback) {
+  m_netElementsNeedLoad = move(needsLoadCallback);
+}
+
+void NetElementCallbackGroup::setNeedsStoreCallback(function<void()> needsStoreCallback) {
+  m_netElementsNeedStore = move(needsStoreCallback);
+}
+
+void NetElementCallbackGroup::netElementsNeedLoad(bool load) {
+  if (m_netElementsNeedLoad)
+    m_netElementsNeedLoad(load);
+}
+
+void NetElementCallbackGroup::netElementsNeedStore() {
+  if (m_netElementsNeedStore)
+    m_netElementsNeedStore();
+}
+
+}