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68 lines
3.0 KiB
C++
68 lines
3.0 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <CameraFramework/ICameraTransformBehavior.h>
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#include <AzCore/RTTI/RTTI.h>
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#include <AzCore/Math/Transform.h>
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#include <LmbrCentral/Scripting/GameplayNotificationBus.h>
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#include <AzCore/Memory/SystemAllocator.h>
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namespace AZ
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{
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class ReflectContext;
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}
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namespace Camera
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{
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//////////////////////////////////////////////////////////////////////////
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/// This behavior will cause the camera to follow the target by "Follow Distance"
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/// meters. Zoom using action events. Use a distance of 0 for FPS style games
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/// and a distance greater than 0 for a Third Person style camera
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//////////////////////////////////////////////////////////////////////////
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class FollowTargetFromDistance
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: public ICameraTransformBehavior
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, public AZ::GameplayNotificationBus::MultiHandler
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{
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public:
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~FollowTargetFromDistance() override = default;
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AZ_RTTI(FollowTargetFromDistance, "{E6BEDB2C-6812-4369-8C0F-C1E72F380E50}", ICameraTransformBehavior)
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AZ_CLASS_ALLOCATOR(FollowTargetFromDistance, 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
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static void Reflect(AZ::ReflectContext* reflection);
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//////////////////////////////////////////////////////////////////////////
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// ICameraTransformBehavior
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void AdjustCameraTransform(float deltaTime, const AZ::Transform& initialCameraTransform, const AZ::Transform& targetTransform, AZ::Transform& inOutCameraTransform) override;
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void Activate(AZ::EntityId) override;
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void Deactivate() override;
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//////////////////////////////////////////////////////////////////////////
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// AZ::GameplayNotificationBus
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void OnEventBegin(const AZStd::any&) override;
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private:
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//////////////////////////////////////////////////////////////////////////
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// Editor helpers
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float GetMinimumFollowDistance() { return m_minFollowDistance; }
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float GetMaximumFollowDistance() { return m_maxFollowDistance; }
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//////////////////////////////////////////////////////////////////////////
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// Reflected Data
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float m_minFollowDistance = 0.f;
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float m_followDistance = 0.f;
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float m_maxFollowDistance = 0.f;
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AZStd::string m_zoomInEventName = "";
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AZStd::string m_zoomOutEventName = "";
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AZ::EntityId m_channelId;
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float m_zoomSpeedScale = 1.f;
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};
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}
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