// Informatik - Serie 11 - Skript-Aufgabe 127
// Program: HynekPaul.cpp
// Author: Hynek Paul
// Draw a "spiky ball"
#include
#include
// POST: the word w_i^F is drawn
void f (const unsigned int i) {
if (i == 0)
ifm::forward(); // F
else {
f(i-1);
ifm::forward();
f(i-1);
ifm::save();
ifm::right(30);
f(i-1);
ifm::forward();
f(i-1);
ifm::forward();
ifm::restore();
ifm::left(30);
ifm::forward();
ifm::right(30);
f(i-1);
ifm::forward();
ifm::left(30);
}
}
int main () {
std::cout << "Please enter the number of iterations " << "(Why not 7?):\n";
unsigned int n;
std::cin >> n;
// draw w_n = w_n(F)
f(n);
ifm::right(30);
ifm::forward();
f(n);
ifm::left(30);
ifm::forward();
f(n);
ifm::right(30);
ifm::forward();
f(n);
ifm::left(30);
ifm::forward();
f(n);
return 0;
}
