kberg-amzn
108 lines
4.4 KiB
C++
108 lines
4.4 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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#include <Source/AutoGen/LocalPredictionPlayerInputComponent.AutoComponent.h>
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#include <Multiplayer/Components/NetBindComponent.h>
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#include <AzNetworking/Serialization/StringifySerializer.h>
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namespace Multiplayer
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{
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using CorrectionEvent = AZ::Event<>;
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class LocalPredictionPlayerInputComponent
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: public LocalPredictionPlayerInputComponentBase
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{
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public:
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AZ_MULTIPLAYER_COMPONENT(Multiplayer::LocalPredictionPlayerInputComponent, s_localPredictionPlayerInputComponentConcreteUuid, Multiplayer::LocalPredictionPlayerInputComponentBase);
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static void Reflect([[maybe_unused]] AZ::ReflectContext* context);
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void OnInit() override;
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void OnActivate([[maybe_unused]] Multiplayer::EntityIsMigrating entityIsMigrating) override;
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void OnDeactivate([[maybe_unused]] Multiplayer::EntityIsMigrating entityIsMigrating) override;
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};
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class LocalPredictionPlayerInputComponentController
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: public LocalPredictionPlayerInputComponentControllerBase
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{
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public:
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LocalPredictionPlayerInputComponentController(LocalPredictionPlayerInputComponent& parent);
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void OnActivate([[maybe_unused]] Multiplayer::EntityIsMigrating entityIsMigrating) override;
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void OnDeactivate([[maybe_unused]] Multiplayer::EntityIsMigrating entityIsMigrating) override;
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void HandleSendClientInput
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(
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AzNetworking::IConnection* invokingConnection,
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const Multiplayer::NetworkInputArray& inputArray,
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const AZ::HashValue32& stateHash
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) override;
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void HandleSendMigrateClientInput
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(
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AzNetworking::IConnection* invokingConnection,
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const Multiplayer::NetworkInputMigrationVector& inputArray
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) override;
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void HandleSendClientInputCorrection
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(
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AzNetworking::IConnection* invokingConnection,
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const Multiplayer::ClientInputId& inputId,
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const AzNetworking::PacketEncodingBuffer& correction
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) override;
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//! Return true if we're currently migrating from one host to another.
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//! @return boolean true if we're currently migrating from one host to another
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bool IsMigrating() const;
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ClientInputId GetLastInputId() const;
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HostFrameId GetInputFrameId(const NetworkInput& input) const;
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void CorrectionEventAddHandle(CorrectionEvent::Handler& handler);
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private:
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void OnMigrateStart(ClientInputId migratedInputId);
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void OnMigrateEnd();
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void UpdateAutonomous(AZ::TimeMs deltaTimeMs);
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void UpdateBankedTime(AZ::TimeMs deltaTimeMs);
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using StateHistoryItem = AZStd::unique_ptr<AzNetworking::StringifySerializer>;
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AZStd::map<ClientInputId, StateHistoryItem> m_predictiveStateHistory;
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// Implicitly sorted player input history, back() is the input that corresponds to the latest client input Id
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NetworkInputHistory m_inputHistory;
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// Anti-cheat accumulator for clients who purposely mess with their clock rate
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NetworkInputArray m_lastInputReceived;
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AZ::ScheduledEvent m_autonomousUpdateEvent; // Drives autonomous input collection
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AZ::ScheduledEvent m_updateBankedTimeEvent; // Drives authority bank time updates
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CorrectionEvent m_correctionEvent;
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EntityMigrationStartEvent::Handler m_migrateStartHandler;
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EntityMigrationEndEvent::Handler m_migrateEndHandler;
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double m_moveAccumulator = 0.0;
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double m_clientBankedTime = 0.0;
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AZ::TimeMs m_lastInputReceivedTimeMs = AZ::TimeMs{ 0 };
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AZ::TimeMs m_lastCorrectionSentTimeMs = AZ::TimeMs{ 0 };
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ClientInputId m_clientInputId = ClientInputId{ 0 }; // Clients incrementing inputId
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ClientInputId m_lastClientInputId = ClientInputId{ 0 }; // Last inputId processed by the server
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ClientInputId m_lastCorrectionInputId = ClientInputId{ 0 };
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ClientInputId m_lastMigratedInputId = ClientInputId{ 0 }; // Used to resend inputs that were queued during a migration event
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HostFrameId m_serverMigrateFrameId = InvalidHostFrameId;
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bool m_allowMigrateClientInput = false; // True if this component was migrated, we will allow the client to send us migrated inputs (one time only)
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};
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}
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