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#ifndef ROPE_HH

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#define ROPE_HH

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// Pre-declarations since rope wants to know the Player

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// and the Player wants to know the rope.

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class Rope;

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#include "Player.hh"

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#include "PhysicsObject.hh"

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#include "GraphicsPointer.hh"

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/**

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 * The rope can be in one of three states...

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 *

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 * @see Rope

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 */

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enum RopeState {

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    ROPE_FOLDED,    //<<< The rope is folded, out of sight, and not in use

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    ROPE_FLYING,    //<<< The rope is flying through the air as a projectile

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    ROPE_FIXED      //<<< The rope is attached to something

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};

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/**

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 * A rope is a PhysicsObject that can be thrown, whereupon it then flies until it hits something, whereupon

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 * it attaches to that, and sets itself as the player's pivot.

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 */

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class Rope : public PhysicsObject {

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private:

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    // the owner

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    Player &player;

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    // possible pivot point (rope is stuck on a player)

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    PhysicsObject *pivotObject;

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    // How long is the rope in its unstrected state

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    float length;

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    // basic state

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    RopeState state;

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protected:

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    /**

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     * Attach the rope, so disable the PhysicsObject and change state

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     * @param collisionPoint Where the rope has hit the ground.

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     */

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    virtual void onCollision (Vector collisionPoint, PhysicsObject *other);

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    /*

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     * If the rope is currently longer than length, this returns ROPE_FORCE, else 0

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     */

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    virtual float getPivotForce (PhysicsObject *bob);

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public:

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    Rope(Player &player);

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    /*

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     * Throw the rope, so it flies up and away: o._-*

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     */

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    void throwRope (void);

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    /*

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     * Release the rope, so if it's currently fixed or flying, then fold it 

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     */

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    void release (void);

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    /*

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     * Climb up/down the rope

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     */

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    void changeLength (float delta);

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    /*

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     * Current state

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     */

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    RopeState getState (void);

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    /*

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     * Current length

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     */

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    float getLength (void);

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    /*

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     * For use by NetworkClient

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     */

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    void updateState (RopeState state, Vector position, Vector velocity, float length);

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    void updateLength (float length);

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    virtual void tick (TimeMS dt);

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    /*

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     * Just draws it

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     */ 

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    virtual void draw (Graphics *c, PixelCoordinate camera);

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};

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#endif