Steve Pham
38261d0800
* Updated all copyright headers to split the longer original copyright line into 2 shorter lines Signed-off-by: Steve Pham <spham@amazon.com>
51 lines
1.9 KiB
C++
51 lines
1.9 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 "StartingPointCamera_precompiled.h"
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#include "FaceTarget.h"
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#include <AzCore/Math/Transform.h>
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#include <AzCore/Serialization/SerializeContext.h>
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#include <AzCore/Math/Crc.h>
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#include <AzCore/Serialization/EditContext.h>
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#include "StartingPointCamera/StartingPointCameraConstants.h"
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#include <AzCore/Math/Quaternion.h>
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#include <MathConversion.h>
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#include <StartingPointCamera/StartingPointCameraUtilities.h>
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namespace Camera
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{
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void FaceTarget::Reflect(AZ::ReflectContext* reflection)
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{
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AZ::SerializeContext* serializeContext = azrtti_cast<AZ::SerializeContext*>(reflection);
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if (serializeContext)
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{
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serializeContext->Class<FaceTarget>()
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->Version(1)
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;
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AZ::EditContext* editContext = serializeContext->GetEditContext();
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if (editContext)
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{
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editContext->Class<FaceTarget>("FaceTarget", "Causes the camera to face the target")
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->ClassElement(AZ::Edit::ClassElements::EditorData, "");
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}
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}
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}
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void FaceTarget::AdjustCameraTransform(float /*deltaTime*/, [[maybe_unused]] const AZ::Transform& initialCameraTransform, const AZ::Transform& targetTransform, AZ::Transform& inOutCameraTransform)
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{
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AZ::Vector3 newLookVector = (targetTransform.GetTranslation() - inOutCameraTransform.GetTranslation()).GetNormalized();
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if (newLookVector.GetLengthSq() < AZ::Constants::FloatEpsilon)
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{
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newLookVector = targetTransform.GetBasis(ForwardBackward);
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}
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inOutCameraTransform.SetRotation(CreateQuaternionFromViewVector(newLookVector.GetNormalized()));
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}
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} // namespace Camera
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