void Model::add_ball(float x, float y)
{
// Get logical coordinates
float logical_x = get_logical_x(x);
float logical_y = get_logical_y(y);
// set radius w.r.t nearby walls
float max_radius = std::min(BASE_RADIUS,
std::min(std::min(std::abs(1 - logical_x), std::abs(1 + logical_x)),
std::min(std::abs(1 - logical_y), std::abs(1 + logical_y))));
// Randomize dominant color and color mix
int strong_color = rand() % 3;
float red = get_random(0.0, 0.3);
float green = get_random(0.0, 0.3);
float blue = get_random(0.0, 0.3);
switch(strong_color % 3)
{
case 0:
red = 0.8;
break;
case 1:
green = 0.8;
break;
case 2:
blue = 0.8;
break;
}
// Prevent new balls inside existing ones
for (std::vector<Ball>::iterator ball = _balls.begin(); ball != _balls.end(); ++ball)
{
glm::vec4 new_center(logical_x, logical_y, 0, 1);
if (glm::distance(new_center, ball->_position) < ball->_cur_radius)
{
return;
}
}
// Create new ball object
Ball ball(_balls.size(),
logical_x,
logical_y,
get_random(0, 2*M_PI),
max_radius,
red,
green,
blue);
// Set size according to surrounding balls. No need to skip existing balls
std::set<size_t> skip;
ball._max_radius = get_new_radius(ball, skip);
_balls.push_back(ball);
}
void flitr::adjustCameraManipulatorHomeForYUp(osgGA::CameraManipulator* m)
{
m->home(0);
osg::Vec3d home_eye, home_center, home_up;
m->getHomePosition(home_eye, home_center, home_up);
// rotate the center to eye vector
osg::Quat q(osg::DegreesToRadians(90.0),osg::Vec3d(1,0,0));
osg::Vec3d new_eye = home_center + (q*(home_center-home_eye));
osg::Vec3d new_center(home_center);
osg::Vec3d new_up(0,1,0);
m->setHomePosition(new_eye, new_center, new_up);
m->home(0);
}
