// Prog: DeBardeciFranco.cpp
// Draw turtle graphics for the Lindenmayer system with
// production F -> F+F+ and initial word 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(i*i*i);
f(i-1);
ifm :: save ();
ifm :: left (60);
f(i-1);
ifm :: restore ();
ifm :: save ();
ifm :: left (10*(10-i));
f(i-1);
ifm :: restore ();
}
}
void g (const unsigned int i) {
if (i == 0)
ifm::forward(); // F
else {
ifm::forward(i*i*i);
g(i-1);
ifm :: save ();
ifm :: right (60);
g(i-1);
ifm :: restore ();
ifm :: save ();
ifm :: right (10*(10-i));
g(i-1);
ifm :: restore ();
}
}
int main () {
unsigned int n = 10;
ifm::right (90);
ifm::save();
// draw w_n = w_n(F)
f(n);
ifm::restore();
g(n);
return 0;
}
