TransitionStage.h

//
//  TransitionStage.h
 
//  Created by Olivier Prat on 07/07/2017.
//  Copyright 2017 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
 
#ifndef hifi_render_TransitionStage_h
#define hifi_render_TransitionStage_h
 
#include "Stage.h"
#include "IndexedContainer.h"
#include "Engine.h"
#include "Transition.h"
 
namespace render {
 
    // Transition stage to set up Transition-related effects
    class TransitionStage : public render::Stage {
    public:
 
        static const std::string& getName() { return _name; }
 
        using Index = indexed_container::Index;
        static const Index INVALID_INDEX;
        using TransitionIdList = indexed_container::Indices;
 
        static bool isIndexInvalid(Index index) { return index == INVALID_INDEX; }
 
        bool isTransitionUsed(Index index) const { return _transitions.checkIndex(index) && !_transitions.isElementFreed(index); }
 
        const Transition& getTransition(Index TransitionId) const { return _transitions.get(TransitionId); }
 
        Transition& editTransition(Index TransitionId) { return _transitions.edit(TransitionId); }
 
        Index addTransition(ItemID itemId, Transition::Type type, ItemID boundId);
        void removeTransition(Index index);
 
        TransitionIdList::iterator begin() { return _activeTransitionIds.begin(); }
        TransitionIdList::iterator end() { return _activeTransitionIds.end(); }
 
    private:
 
        using Transitions = indexed_container::IndexedVector<Transition>;
 
        static std::string _name;
 
        Transitions _transitions;
        TransitionIdList _activeTransitionIds;
    };
    using TransitionStagePointer = std::shared_ptr<TransitionStage>;
 
    class TransitionStageSetup {
    public:
        using JobModel = render::Job::Model<TransitionStageSetup>;
 
        TransitionStageSetup();
        void run(const RenderContextPointer& renderContext);
 
    protected:
    };
 
}
 
#endif // hifi_render_TransitionStage_h