/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2024, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.

    AUTHOR:       John DiCamillo


    OVERVIEW
    ========
    Fighter undercarriage (landing gear) system class
*/

#ifndef LandingGear_h
#define LandingGear_h

#include "Types.h"
#include "System.h"
#include "Solid.h"

// +--------------------------------------------------------------------+

class Ship;

// +--------------------------------------------------------------------+

class LandingGear : public System
{
public:
    enum CONSTANTS  { MAX_GEAR = 4 };
    enum GEAR_STATE { GEAR_UP, GEAR_LOWER, GEAR_DOWN, GEAR_RAISE };

    LandingGear();
    LandingGear(const LandingGear& rhs);
    virtual ~LandingGear();

    virtual int       AddGear(Model* m, const Point& s, const Point& e);
    virtual void      ExecFrame(double seconds);
    virtual void      Orient(const Physical* rep);

    GEAR_STATE        GetState()        const { return state; }
    void              SetState(GEAR_STATE s);
    int               NumGear()         const { return ngear; }
    Solid*            GetGear(int i);
    Point             GetGearStop(int i);
    double            GetTouchDown();
    double            GetClearance()    const { return clearance; }

    static void       Initialize();
    static void       Close();

protected:
    GEAR_STATE        state;
    double            transit;
    double            clearance;

    int               ngear;
    Model*            models[MAX_GEAR];
    Solid*            gear[MAX_GEAR];
    Point             start[MAX_GEAR];
    Point             end[MAX_GEAR];
};

#endif  // LandingGear_h