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83 lines
3.1 KiB
C++
83 lines
3.1 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 <AzCore/Component/ComponentBus.h>
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#include <AzCore/Math/Color.h>
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class UiFaderInterface
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: public AZ::ComponentBus
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{
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public: // member functions
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virtual ~UiFaderInterface() {}
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//! Get the fade value. This is a float between 0 and 1. 1 means no fade. 0 means complete fade to invisible.
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virtual float GetFadeValue() = 0;
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//! Set the fade value
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virtual void SetFadeValue(float fade) = 0;
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//! Trigger a fade animation.
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//! \param targetValue The value to end the fade at [0,1]
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//! \param speed Speed measured in full fade amount per second; 0 means instant
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//! \param listener The listener to notify when the fade is completed or interrupted
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virtual void Fade(float targetValue, float speed) = 0;
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//! Get whether a fade animation is taking place
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virtual bool IsFading() = 0;
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//! Get the flag that indicates whether the fader should use render to texture
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virtual bool GetUseRenderToTexture() = 0;
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//! Set the flag that indicates whether the fader should use render to texture
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virtual void SetUseRenderToTexture(bool useRenderToTexture) = 0;
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public: // static member data
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//! Only one component on a entity can implement the events
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static const AZ::EBusHandlerPolicy HandlerPolicy = AZ::EBusHandlerPolicy::Single;
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};
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typedef AZ::EBus<UiFaderInterface> UiFaderBus;
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////////////////////////////////////////////////////////////////////////////////////////////////////
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//! Interface class that listeners need to implement
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class UiFaderNotifications
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: public AZ::ComponentBus
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{
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public:
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//////////////////////////////////////////////////////////////////////////
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// EBusTraits overrides
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static const bool EnableEventQueue = true;
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//////////////////////////////////////////////////////////////////////////
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public: // member functions
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virtual ~UiFaderNotifications(){}
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//! Called when the animation triggered by UiFaderInterface::Fade() is done.
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//! The listener is automatically removed from the fader component after this is called.
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virtual void OnFadeComplete() = 0;
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//! Called when the animation triggered by UiFaderInterface::Fade() is interrupted.
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//! The listener is automatically removed from the fader component after this is called.
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virtual void OnFadeInterrupted() = 0;
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//! Called when the fader component is destroyed
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virtual void OnFaderDestroyed() = 0;
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};
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typedef AZ::EBus<UiFaderNotifications> UiFaderNotificationBus;
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