void meteor_launcher::launch() {
auto side = next_int(0, 3);
int x = 0, y = 0;
int x1 = 0, y1 = 0;
if (side == 0) {
x = -500;
y = next_int(0, height);
x1 = width;
y1 = next_int(0, height);
}
if (side == 1) {
x = next_int(0, width);
y = height + 500;
x1 = next_int(0, width);
y1 = 0;
}
if (side == 2) {
x = width + 500;
y = next_int(0, height);
x1 = 0;
y1 = next_int(0, height);
}
if (side == 3) {
x = next_int(0, width);
y = -500;
x1 = next_int(0, width);
y1 = height;
}
ent_asteroid *a;
a = &w->add_entity<ent_asteroid>();
a->C(com_box).pos = vec2(x, y);
a->C(com_movement).vel = normalize(vec2(x1, y1) - vec2(x, y)) * next_int(7, 12);
a->C(com_texture).filename = "asteroid.png";
a->C(com_spin).rotation = next_float(0.01, 0.1);
cout << "METEOR!!!!!!" << endl;
last_launch = t.get_ticks();
launch_period = launch_period - 50 > SEC / 2 ? launch_period - 50 : SEC / 2;
}
std::pair<Interval,Interval> Interval::bisect(double ratio) const {
assert(is_bisectable());
assert(ratio>0 && ratio<1);
Interval left,right;
if (lb()==NEG_INFINITY) {
if (ub()==POS_INFINITY) {
left = Interval(NEG_INFINITY,0);
right = Interval(0,POS_INFINITY);
}
else {
left = Interval(NEG_INFINITY,-DBL_MAX);
right = Interval(-DBL_MAX,ub());
}
}
else if (ub()==POS_INFINITY) {
left = Interval(lb(),DBL_MAX);
right = Interval(DBL_MAX,POS_INFINITY);
}
else {
double point;
if (ratio==0.5)
point = mid();
else {
point = lb()+ratio*diam();
// watch dog. note that since *this is
// bisectable, we have next_float(left.lb()) < ub()
if (point >= ub()) point=next_float(lb());
assert(point<ub());
}
left = Interval(lb(), point);
right = Interval(point, ub());
}
return std::pair<Interval,Interval>(left,right);
}
void setup_table() {
for( int i = 0; i < 4096; i++ ) {
seeded[i] = next_float();
}
seeded[4096] = seeded[0];
}
IntervalVector Set::inflate_one_float(const IntervalVector& box) {
IntervalVector inflated=box;
for (int i=0;i<box.size();i++) {
double lb=box[i].lb();
double ub=box[i].ub();
inflated[i]=Interval(lb==NEG_INFINITY? lb : previous_float(lb), ub==POS_INFINITY? ub : next_float(ub));
}
return inflated;
}
