Space_Noop class
class Space_Noop implements Space{
void reset() {}
bool addParticles(Particles ps) => true;
bool addSegment(Segment seg) => true;
void handleCollision() {}
}
class Space_Noop implements Space{
void reset() {}
bool addParticles(Particles ps) => true;
bool addSegment(Segment seg) => true;
void handleCollision() {}
}