import pitaru.sonia_v2_9.*;

Sample mySample; 
 
float[] data; 
void setup() { 
  size(512, 512); 
  Sonia.start(this);
  LiveInput.start(256);
//  LiveInput.useEqualizer(true);
  mySample = new Sample(1024); // Create an empty sample with 1024 frames. 
  data = new float[1024]; // create an array with as many frames as as sample. 

  //populate the array with sample data, a sine wave in this case 
  fillData();
    
//  LiveInput.useEnvelope(true, 1);
  
  mySample.write(data); // write the data from the 'data' array into the sample 
  mySample.repeat(); // loop the sample 
  mySample.connectLiveInput(true);
  
  framerate(1);
}

int freq = 10;

void draw() {

  background(255);
  float level = LiveInput.getLevel();
  LiveInput.getSpectrum();
  
  float maxSpec = Float.NEGATIVE_INFINITY;
  int maxBin = -1;
  for (int i=0; i < LiveInput.spectrum.length; i++) {
    if (LiveInput.spectrum[i] > maxSpec) {
	maxBin = i;
	maxSpec = LiveInput.spectrum[i];
    }
  }
  println(maxBin);

  float scale = (height - 20) / maxSpec;
  for (int i=0; i < LiveInput.spectrum.length; i++) {
    line(i*2, height, i*2, height - LiveInput.spectrum[i] * scale);
  }

  freq *= 2;
  fillData(); 
  
//  LiveInput.useEnvelope(true, 1);
  
  mySample.write(data); // write the data from the 'data' array into the sample 
  mySample.repeat(); // loop the sample 
  mySample.connectLiveInput(true);
}

//populate the array with sample data, a sine wave in this case 
private void fillData() {
  float oneCycle = TWO_PI/1024; 
  for(int i = 0; i < 1024; i++){ 
    data[i] = sin(i*oneCycle*freq);
  } 
}
 
public void stop(){ 
  Sonia.stop(); 
  super.stop(); 
}