import processing.opengl.*;
import anar.*;
 
 
 
 
 
/*
 * Example for Anar library by Guillaume LaBelle + Julien Nembrini
 * http://anar.ch
 */
 
 
CSpline   bsp;
Param pv;
Param pn;
 
Pts   baseLine = new Pts();
 
void setup(){
    size(800,400,OPENGL);
  frameRate(200);
 
  Anar.init(this);
  Anar.drawAxis(true);
  Anar.drawReferenceFrame(true);
  initShape();
 
  Pts.globalRender = new RenderPtsAll();
  Pt.globalRender = new RenderPtShapeOriented(new AColor(100),new AColor(255,0,0,150),Anar.scene);
}
 
 
void initShape(){
 
 
  baseLine.add(Anar.Pt( -50,0,0));
  baseLine.add(Anar.Pt(0,50,50));
  baseLine.add(Anar.Pt(10,10,0));
  baseLine.add(Anar.Pt(0,10,100));
  baseLine.add(Anar.Pt(50,0,0));
 
  pv = new Param(3f);
  bsp = new CSpline(baseLine,pv);
 
  Anar.camTarget(baseLine);
}
 
 
void draw(){
  background(190);
  stroke(0);
  baseLine.draw();
 
  if(drawConstruction)
    bsp.draw();
  else
    bsp.drawConstructionLines();
 
  if(key=='k'){
    pv.set(mouseX/(float)width/2f);
    pn.set(mouseY/(float)height*60+1);
  }
}
 
 
private boolean drawConstruction = true;
 
void keyPressed(){
  switch(key){
    case ' ':
      if(drawConstruction)
        drawConstruction = false;
      else
        drawConstruction = true;
    break;
  }
}
 
 
void prnt(Object s){
  super.println(s);
  super.println("-----------------------------");
}