PosComponent.hpp

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/*
SagaEngine library
Copyright (c) 2002-2006 Skalden Studio AS

This software is provided 'as-is', without any express or implied 
warranty. In no event will the authors be held liable for any 
damages arising from the use of this software.

Permission is granted to distribute the library under the terms of the 
Q Public License version 1.0. Be sure to read and understand the license
before using the library. It should be included here, or you may read it
at http://www.trolltech.com/products/qt/licenses/licensing/qpl

The original version of this library can be located at:
http://www.sagaengine.com/

Rune Myrland
rune@skalden.com
*/


#ifndef sim_PosComponent_hpp
#define sim_PosComponent_hpp

#include "comp/Component.hpp"
#include "comp/Composite.hpp"
#include "../sim.hpp"
#include "Pos.hpp"
#include "../config/sim_config.hpp"
#include "util/type/util_type.hpp"
#include "util/type/String.hpp"


namespace se_core {
    class _SeCoreExport PosComponent : public Component {
    public:
        typedef ComponentPtr<PosComponent, sct_POS> Ptr;

        PosComponent(Composite* owner);
        virtual ~PosComponent();

        static PosComponent* get(Composite* composite) {
            if(!composite)
                return 0;
            PosComponent* c = static_cast<PosComponent*>(composite->component(se_core::sct_POS));
            return c;
        }

        static PosComponent* get(Composite& composite) {
            PosComponent* c = static_cast<PosComponent*>(composite.component(se_core::sct_POS));
            return c;
        }

        static const PosComponent* get(const Composite& composite) {
            const PosComponent* c = static_cast<const PosComponent*>(composite.component(se_core::sct_POS));
            return c;
        }

        static PosComponent* get(Component& component) {
            PosComponent* c = static_cast<PosComponent*>(component.owner()->component(se_core::sct_POS));
            return c;
        }

        static const PosComponent* get(const Component& component) {
            const PosComponent* c = static_cast<const PosComponent*>(component.owner()->component(se_core::sct_POS));
            return c;
        }

        inline const Pos& pos() const {
            return position_;
        }

        bool didMove() const {
            return didMove_;
        }

        inline void resetFutureCoor() { didMove_ = false; nextPos().setPos(position_); }

        inline void resetFutureXZCoor() {
            // Revert back to original area if necessary
            nextPosition_.setXZ(position_);
        }


        inline Pos& nextPos() {
            return nextPosition_;
        }

        inline const Pos& nextPos() const {
            return nextPosition_;
        }

        void flip();

        virtual void leaveCurrentParent();

        virtual bool changeParent();



        void updateWorldViewPoint();

        void worldCoor(scale_t alpha, Point3& dest) const;

        void worldViewPoint(scale_t alpha, ViewPoint& dest) const;


    protected:
        virtual void cleanup();


        Pos position_;

        Pos nextPosition_;

        bool didMove_;

        bool isCollideable_;
    };

}

#endif

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