/* :: a city is not a tree, according to Christopher Alexander, meaning that its structure is more complex than the diagrammatic branching distribution of a tree :
 : however a city is a tree in its morphology, following the fractal distribution of its networked space :: 
    :: this application is a first expression of a system which follows the fractal design of a tree, importing one element in order to augment the complexity of the tree structure
    this element is the live input of sound : i used as a starting point two examples in Processing :  Liveinput and Tree
  : artemis papageorgiou
*/


// counter on, redraws every 10 seconds the background
// without the semi-transparent rectangle.
// and with large liveSpectrum trunk

import pitaru.sonia_v2_9.*; 

float theta;

void setup(){
   size(720,450);
   Sonia.start(this); // Start Sonia engine.
   LiveInput.start(256); // Start LiveInput and return 256 FFT frequency bands.
  frameRate(30);
  smooth();
  fill(255,5);
}
int counter;
void draw(){
if(counter++%600 == 0) background(250);
rect(0,0,width,height);
//background(255);
  
   stroke(255);
 
 // getMeterLevel(); // Show meter-level reading for Left/Right channels.
  getSpectrum(); // Show FFT reading
 
  float a = (LiveInput.spectrum[1] / (float) width) * 90f; // Let's pick an angle 0 to 90 degrees based on the mouse position
  theta = radians(a); // Convert it to radians
    
}


void getSpectrum(){
   strokeWeight(0);
  // stroke(0,230,0);
  
   LiveInput.getSpectrum();
   float trunk;
   for ( int i = 0; i < LiveInput.spectrum.length; i+=2){
     // line(i*6, height, i*6, height - LiveInput.spectrum[i]/10);
      pushMatrix();  
        translate(i*6, height);  //GLEN'S INPUT
        trunk = LiveInput.spectrum[i]/10;  //GLEN //if i divide this value by 10 i go back to the normal trunk
         line(0,0,0,-trunk); // trunk
         stroke(0,LiveInput.spectrum[i]/5,0);
         translate(0,-trunk); // move first branch
        branch(LiveInput.spectrum[i]/10);  //GLEN'S INPUT
      popMatrix();
   }
}

void getMeterLevel(){  //shows volume
   // get Peak level for each channel (0 -> Left , 1 -> Right)
   // Value Range: float from 0.0 to 1.0
   // Note: use inputMeter.getLevel() to combine both channels (L+R) into one value.
   float meterDataLeft = LiveInput.getLevel();
   float meterDataRight = LiveInput.getLevel();

   fill(0,100,0);
   float left = meterDataLeft*height;
   float right = meterDataRight*height; 
   rect(width/2 - 100, height, 100 , left*-1);
   rect(width/2 , height, 100, right*-1);
}

// Safely close the sound engine upon Browser shutdown.
public void stop(){
    Sonia.stop();
    super.stop();
}


void branch(float h) {
  // Each branch will be 2/3rds the size of the previous one
  h *= 0.66f;
  
  // All recursive functions must have an exit condition!!!! 
  if (h > 2) {
    pushMatrix();    
    rotate(theta);   
    line(0,0,0,-h);  
    translate(0,-h); 
    branch(h);       //recursion
    popMatrix();     
    
    // Repeat the same thing, only branch off to the "left" this time!
   pushMatrix();
  rotate(-theta);
  line(0,0,0,-h);
   translate(0,-h);
   branch(h);
    popMatrix();
  }
}