/**
* \brief Calculate the new acceleration of the item.
*/
void bear::universe::physical_item::adjust_cinetic()
{
speed_type s( get_speed() );
if ( has_owner() )
{
const speed_type eps(get_owner().get_speed_epsilon());
if ( (s.x < eps.x) && (s.x > -eps.x) )
s.x = 0;
if ( (s.y < eps.y) && (s.y > -eps.y) )
s.y = 0;
set_speed(s);
if ( (get_angular_speed() < get_owner().get_angular_speed_epsilon()) &&
(get_angular_speed() > -get_owner().get_angular_speed_epsilon()) )
set_angular_speed(0);
}
} // physical_item::adjust_cinetic()
/**
* \brief Call collision_check_and_bounce().
* \param that The other item of the collision.
* \param info Some informations about the collision.
*/
void rp::bonus::collision
( bear::engine::base_item& that, bear::universe::collision_info& info )
{
if ( m_bonus_is_given )
return;
cart* c = dynamic_cast<cart*>(&that);
if ( c != NULL )
if ( c->get_current_action_name() != "dead" &&
c->get_current_action_name() != "takeoff" )
{
m_bonus_is_given = true;
give_bonus(c);
set_angular_speed(-20);
set_mass(1);
m_cart = c;
m_tweener_y_position.insert
( claw::tween::single_tweener
( 0.0, 300.0, 0.5,
boost::bind( &rp::bonus::on_y_position_change, this, _1 ),
&claw::tween::easing_quad::ease_out ) );
m_tweener_y_position.insert
( claw::tween::single_tweener
( 300.0, 50.0, 0.5,
boost::bind( &rp::bonus::on_y_position_change, this, _1 ),
&claw::tween::easing_quad::ease_in ) );
m_tweener_y_position.on_finished
(boost::bind( &rp::bonus::kill, this ));
m_tweener_x_position.insert
( claw::tween::single_tweener
( get_horizontal_middle() - m_cart->get_horizontal_middle(),
0.0, 1.0,
boost::bind( &rp::bonus::on_x_position_change, this, _1 ),
&claw::tween::easing_quad::ease_out ) );
}
} // bonus::collision()
