//Informatik - Serie 11 - Aufgabe 127
//Autor: Karim el Haqyawan
//Prog: ElHqayawanKarim1.cpp
//Draw turtle graphics for the Lindenmayer system with
//production F -> [+][+F][-F]F
#include
#include
// POST: the word w_i^F is drawn
void f (const unsigned int i) {
if (i == 0)
ifm::forward(); // F
else {
ifm::forward(1);
ifm::save(); //[
ifm::right(150); //+
ifm::forward(1);
ifm::restore(); //]
ifm::save(); //[
ifm::right(30); //+
ifm::forward(1);
f(i-1); //w_{i-1}^F
ifm::restore(); //]
ifm::save(); //[
ifm::left(30); //-
ifm::forward(1);
f(i-1); //w_{i-1}^F
ifm::restore(); //]
ifm::forward(1);
f(i-1); //w_{i-1}^F
}
}
int main () {
std::cout << "Number of iterations =? ";
unsigned int n;
std::cin >> n;
// draw w_n = w_n(F)
f(n);
return 0;
}
