save("name.tif"); is non working in this code, any suggestions?
//////////////////////////
import net.nexttext.*;
import net.nexttext.behaviour.*;
import net.nexttext.behaviour.control.*;
import net.nexttext.behaviour.dform.*;
import net.nexttext.behaviour.physics.*;
import net.nexttext.behaviour.standard.*;

Book book;
PFont font;

void setup() {
 size(1200, 1500);
 background(42);
 smooth();
 make(width/2, height/2, 6, 1425, 1360, color(253,10,10), 45,
 color(15,155,255), SQUARE, ROUND);
 make(width/2, height/2, 12, 137, 203, color(3,210,10), 45,
 color(15,0,0, 93), SQUARE, MITER);
 
   book = new Book(this);

 // load and set the font
 font = createFont("GeometricBlack.ttf", 288);
 textFont(font);
 textAlign(CENTER);
 fill(255);
 stroke(96);
 strokeWeight(15);

 // build the text
 book.addText("biri biri", width/2, height/2);

}
void draw() {

 book.stepAndDraw();
}




void make(float x, float y, float s, float rad1, float rad2, color c1,
float init,  color c2, int endCap, int endJoin) {
 float px=0;
 float py=0;
 float angle = init;
 float ang=(360/s)/2.0;
 float ang2=(360/s)/4.0;
 strokeWeight(s*5);
 stroke(c2);
 strokeCap(endCap);
 strokeJoin(endJoin);
 fill(c1);
 beginShape();
 for(int i=0;i<s; i++){
   px=x+cos(radians(angle))*rad1;
   py=y+sin(radians(angle))*rad1;
   vertex(px,py);
   angle+=ang;
   px=x+cos(radians(angle))*rad1; //nice x/cos...
   py=y+sin(radians(angle))*rad1;
   vertex(px,py);
   angle+=ang2;
   px=x+cos(radians(angle))*rad2;
   py=y+sin(radians(angle))*rad2;
   vertex(px,py);

   px = x;
   py = y;
   vertex(px,py);
/*
   float foo = px;
   px = py;
   py = foo;
   vertex(px,py);
*/
   angle+=ang2;
 }
 endShape(CLOSE);
}

//save("biri.tif");

thanks a lot, that really helps!