Add server side accounting for blend factor

Signed-off-by: puvvadar <puvvadar@amazon.com>
2021-07-20 14:12:06 -07:00
parent 7950c2b549
commit ebe326f6e9
6 changed files with 30 additions and 2 deletions
@@ -154,9 +154,12 @@ namespace Multiplayer
            // Discard move input events, client may be speed hacking
            if (m_clientBankedTime < sv_MaxBankTimeWindowSec)
            {
+                // Client blends from previous frame to target so here we subtract blend factor to get to that state
+                const float adjustedBlendFactor = std::pow(0.2f, input.GetHostBlendFactor());
+                const AZ::TimeMs blendMs = AZ::TimeMs(static_cast<float>(static_cast<AZ::TimeMs>(cl_InputRateMs)) * adjustedBlendFactor);
                m_clientBankedTime = AZStd::min(m_clientBankedTime + clientInputRateSec, (double)sv_MaxBankTimeWindowSec); // clamp to boundary
                {
-                    ScopedAlterTime scopedTime(input.GetHostFrameId(), input.GetHostTimeMs(), invokingConnection->GetConnectionId());
+                    ScopedAlterTime scopedTime(input.GetHostFrameId(), input.GetHostTimeMs() - blendMs, invokingConnection->GetConnectionId());
                    GetNetBindComponent()->ProcessInput(input, static_cast<float>(clientInputRateSec));
                }

@@ -498,6 +501,7 @@ namespace Multiplayer
            input.SetClientInputId(m_clientInputId);
            input.SetHostFrameId(networkTime->GetHostFrameId());
            input.SetHostTimeMs(multiplayer->GetCurrentHostTimeMs());
+            input.SetHostBlendFactor(multiplayer->GetCurrentBlendFactor());

            // Allow components to form the input for this frame
            GetNetBindComponent()->CreateInput(input, inputRate);