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101 lines
3.5 KiB
C++
101 lines
3.5 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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#include <Include/Multiplayer/Physics/PhysicsUtils.h>
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#include <AzCore/Interface/Interface.h>
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#include <AzFramework/Physics/PhysicsScene.h>
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#include <AzFramework/Physics/Shape.h>
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#include <Multiplayer/NetworkTime/INetworkTime.h>
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namespace
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{
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template<typename RequestT>
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AzPhysics::SceneQueryHits SceneQueryInternal(const RequestT& request)
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{
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auto* sceneInterface = AZ::Interface<AzPhysics::SceneInterface>::Get();
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if (!sceneInterface)
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{
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return {};
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}
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AzPhysics::SceneHandle sceneHandle = sceneInterface->GetSceneHandle(AzPhysics::DefaultPhysicsSceneName);
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if (sceneHandle == AzPhysics::InvalidSceneHandle)
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{
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return {};
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}
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Multiplayer::INetworkTime* currentNetTime = Multiplayer::GetNetworkTime();
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if(!currentNetTime->IsTimeRewound())
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{
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// If the time is not rewound, we simply execute the scene query as is.
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AzPhysics::SceneQueryHits result = sceneInterface->QueryScene(sceneHandle, &request);
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return result;
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}
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// If the time is rewound, we want to query against rigid bodies present at the same frame ID: the same as the current rewound time is.
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RequestT netSceneQueryRequest = request;
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netSceneQueryRequest.m_filterCallback = [&request, currentFrameId = (uint32_t)currentNetTime->GetHostFrameId()](
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const AzPhysics::SimulatedBody* body, const ::Physics::Shape* shape)
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{
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if (body->GetFrameId() == AzPhysics::SimulatedBody::UndefinedFrameId || body->GetFrameId() == currentFrameId)
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{
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if (request.m_filterCallback)
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{
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return request.m_filterCallback(body, shape);
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}
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// Overlap filter callbacks return true/false rather than Touch/Block/None
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if constexpr (AZStd::is_same_v<RequestT, AzPhysics::OverlapRequest>)
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{
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return true;
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}
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else
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{
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return AzPhysics::SceneQuery::QueryHitType::Touch;
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}
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}
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if constexpr (AZStd::is_same_v<RequestT, AzPhysics::OverlapRequest>)
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{
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return false;
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}
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else
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{
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return AzPhysics::SceneQuery::QueryHitType::None;
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}
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};
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// Execute the scene query modified for the time rewind.
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AzPhysics::SceneQueryHits result = sceneInterface->QueryScene(sceneHandle, &netSceneQueryRequest);
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return result;
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}
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}
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namespace Multiplayer
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{
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namespace Physics
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{
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AzPhysics::SceneQueryHits RayCast(const AzPhysics::RayCastRequest& request)
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{
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return SceneQueryInternal<AzPhysics::RayCastRequest>(request);
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}
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AzPhysics::SceneQueryHits ShapeCast(const AzPhysics::ShapeCastRequest& request)
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{
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return SceneQueryInternal<AzPhysics::ShapeCastRequest>(request);
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}
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AzPhysics::SceneQueryHits Overlap(const AzPhysics::OverlapRequest& request)
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{
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return SceneQueryInternal<AzPhysics::OverlapRequest>(request);
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}
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} // namespace Physics
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} // namespace Multiplayer
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