import processing.opengl.*;
import anar.*;





/*
 * Example for Anar library by Guillaume LaBelle + Julien Nembrini
 * http://anar.ch
 */

boolean  penDown      = true;
boolean  cameraFollow = false;

//  Obj      traces       = new Obj();
Turtle[] turtle;

Param    f;
Param    XY;
Param    XZ;

void setup(){

    size(screen.width,screen.height-100,OPENGL);
  Anar.chy(this);
  Anar.drawAxis(true);
  
  ParamCycle.clock = new ClockFCms();    

  f = new ParamCycle(1/4f,5/2f,1/4f,new Param(20,0,200));
  XY = new ParamCycle(0.01f, -.1f,.1f,new Param(70,0,200));
  XZ = new ParamCycle(0.01f, -.1f,.1f,new Param(100,0,200));

  Anar.sliders.add(f);
  Anar.sliders.add(XY);
  Anar.sliders.add(XZ);

  turtle = new Turtle[10];

  int n = turtle.length;
  int d = 20;

  for (int i = 0; i<turtle.length; i++){
    turtle[i] = new Turtle(Anar.Pt(d*sin(2*PI*i/n),d*cos(2*PI*i/n),0),Anar.Pt(0,0,1),Anar.Pt(sin(2*PI*i/n),cos(2*PI*i/n),0));
//      Pts t = new Pts();
//      traces.add(t);
  }
}


void draw(){
  background(200);
  Anar.draw();
//    traces.draw();
  

  for (int i = 0; i<turtle.length; i++){
    turtle[i].ROTATEXZ(XZ);
    turtle[i].ROTATEXY(XY);
    turtle[i].FORWARD(f);
    turtle[i].draw();
  }
  
  if(cameraFollow)
    turtle[0].setCameraOnTurtle();
}


void keyPressed(){
  if(key==' ')
    for (int i = 0; i<turtle.length; i++)
      if(turtle[i].penState)
        turtle[i].PENUP();
      else
        turtle[i].PENDOWN();

  if(key=='q')
    cameraFollow = cameraFollow ? false:true;

  if(key=='c')
    for (int i = 0; i<turtle.length; i++)
      turtle[i].CLEAN();
  
  if(key=='t')
    for (int i = 0; i<turtle.length; i++)
      turtle[i].drawingFromTail();
  
  if(key=='h')
    for (int i = 0; i<turtle.length; i++)
      turtle[i].drawingFromHead();
  
  
}