/**********************************************************
* SHIP :: interact()
***********************************************************/
void Ship :: interact(const Interface & pUI, void * asteroids)
{
orientation += pUI.isLeft() * TURN_RADIUS;
orientation -= pUI.isRight() * TURN_RADIUS;
if (pUI.isUp())
{
thrustOn = true;
Velocity thrust;
thrust.setDx(THRUST *std::cos(deg2rad(orientation + 90)));
thrust.setDy(THRUST * std::sin(deg2rad(orientation + 90)));
v += thrust;
}
else
thrustOn = false;
if (pUI.isSpace())
{
Asteroids * pAsteroids = (Asteroids *)asteroids;
pAsteroids->addItem(new Bullet(v, orientation));
}
}
Velocity operator+(const Velocity & lhs, const Velocity & rhs)
{
// not a member or friend, so we need to use getters and setters
Velocity sum;
sum.setDx(lhs.getDx() + rhs.getDx());
sum.setDy(lhs.getDy() + rhs.getDy());
return sum;
}