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Gems/StartingPointCamera/Code/Source/CameraTransformBehaviors/OffsetCameraPosition.h

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+/*
+* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
+* its licensors.
+*
+* For complete copyright and license terms please see the LICENSE at the root of this
+* distribution (the "License"). All use of this software is governed by the License,
+* or, if provided, by the license below or the license accompanying this file. Do not
+* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+*/
+#pragma once
+#include <CameraFramework/ICameraTransformBehavior.h>
+#include <AzCore/Math/Transform.h>
+#include <AzCore/RTTI/ReflectContext.h>
+#include <AzCore/Memory/SystemAllocator.h>
+
+namespace Camera
+{
+    //////////////////////////////////////////////////////////////////////////
+    /// Use this behavior to offset the camera's position by a fixed amount
+    //////////////////////////////////////////////////////////////////////////
+    class OffsetCameraPosition
+        : public ICameraTransformBehavior
+    {
+    public:
+        ~OffsetCameraPosition() override = default;
+        AZ_RTTI(OffsetCameraPosition, "{DB64D5DA-84B7-45B7-B221-B5A07BDA2F69}", ICameraTransformBehavior)
+        AZ_CLASS_ALLOCATOR(OffsetCameraPosition, AZ::SystemAllocator, 0); ///< Use AZ::SystemAllocator, otherwise a CryEngine allocator will be used. This will cause the Asset Processor to crash when this object is deleted, because of the wrong uninitialisation order
+        static void Reflect(AZ::ReflectContext* reflection);
+
+        //////////////////////////////////////////////////////////////////////////
+        // ICameraTransformBehavior
+        void AdjustCameraTransform(float deltaTime, const AZ::Transform& initialCameraTransform, const AZ::Transform& targetTransform, AZ::Transform& inOutCameraTransform) override;
+        void Activate(AZ::EntityId) override {}
+        void Deactivate() override {}
+
+    private:
+        //////////////////////////////////////////////////////////////////////////
+        // Reflected Data
+        AZ::Vector3 m_offset = AZ::Vector3::CreateZero();
+        bool m_isRelativeOffset = false;
+    };
+} // namespace Camera