static inline bool
is_inside_right_area(struct touchpad *tp, struct touch *t)
{
return is_inside_area(t, tp->buttons.config.top,
tp->buttons.config.bottom,
tp->buttons.config.right[0],
tp->buttons.config.right[1]);
}
void MySimulation::update() {
double xstep=2*(random()-0.5)*stepsize_;
double ystep=2*(random()-0.5)*stepsize_;
double x1=x_+xstep;
double y1=y_+ystep;
// Simple (not very efficient) way to make sure we are inside the area:
if (!is_inside_area(x_,y_)) { // if we are now outside...
x_=x1;
y_=y1;
return; // ...make a step and return without updating step count
}
// Simple-case Metropolis: always accept if we are within the area, always reject otherwise
if (is_inside_area(x1,y1)) {
x_=x1;
y_=y1;
}
++istep_;
}