// This task gets the position of mouse each frame, and rotates the neck based
// on it.
void World::turn_head()
{
// Check to make sure the mouse is readable
PT(MouseWatcher) mouseWatcherPtr = DCAST(MouseWatcher, m_windowFrameworkPtr->get_mouse().node());
if(mouseWatcherPtr->has_mouse())
{
// get the mouse position as a Vec2. The values for each axis are from -1 to
// 1. The top-left is (-1,-1), the bottom right is (1,1)
const LPoint2f& mpos = mouseWatcherPtr->get_mouse();
// Here we multiply the values to get the amount of degrees to turn
// Restrain is used to make sure the values returned by getMouse are in the
// valid range. If this particular model were to turn more than this,
// significant tearing would be visible
m_eveNeckNp.set_p(restrain(mpos.get_x()) * 50);
m_eveNeckNp.set_h(restrain(mpos.get_y()) * 20);
}
}
char getHexChar(int n)
{
restrain(n, 0, 15);
if (n < 10) return static_cast<char>('0' + n);
else return static_cast<char>('a' + n - 10);
}
