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#include "Player.hh"

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#include "Rope.hh"      

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#include "Engine.hh"

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#include <math.h>

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Rope::Rope(Player &climber) : PhysicsObject(climber.state.world, PLAYER_MASS, Vector(0,0), Vector(0,0), false), pl(climber), rs(FOLDED) {

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    std::vector<Vector> shape(4);

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    shape[0] = Vector(-1, -1);

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    shape[1] = Vector(-1, 1);

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    shape[2] = Vector(1, 1);

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    shape[3] = Vector(1, -1);

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    setShape(shape);

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}

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void Rope::shoot(void) {

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    this->rs = FLYING;

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    this->length = 100;

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    this->position = pl.getPosition();

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    Vector direction = pl.getFacing() ? Vector( cos(pl.getAim()), -sin(pl.getAim()) ) 

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                                      : Vector( -cos(pl.getAim()), -sin(pl.getAim()) );

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    this->velocity = pl.getVelocity() + direction*500;

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    this->inAir = true;

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    enable();

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    pl.state.addRope(this);

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}

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void Rope::onCollision() {

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    this->rs = FIXED;

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    // stop movement

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    disable();

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    // set player's pivot

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    pl.setPivot(this);

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}

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void Rope::release (void) {

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    // TODO make it fly first and fold only 

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    // after it's close to the player

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    this->rs = FOLDED;

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    // player doesn't have a pivot anymore

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    pl.setPivot(NULL);

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}

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RopeState Rope::getState (void) {

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    return this->rs;

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}

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float Rope::getPivotForce (PhysicsObject *bob) {

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    if ( (this->position - pl.getPosition()).length() >= this->length)

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    else

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        return 0;

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}

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void Rope::draw (CL_GraphicContext *gc) const {

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    gc->draw_line((int)(this->pl.getPosition().x), (int)(this->pl.getPosition().y)

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        , (int)(this->position.x), (int)(this->position.y), CL_Color::black);

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}

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