// camera obscura by andres burbano
// code based on "Listening to Images" workshop by Daniel Sauter - AUDO2008, Purdue.

// import video library
import processing.video.*;

//import supercollider lybrary
  import supercollider.*; 

// scanner is a line to scann the video
int scanner = 0; 
//  stroke color
color strokeCol = color(10);
// camera variable
Capture cam;

// Synthetizer
Synth synth; 

void setup() { 
  
  size(800, 500); 
  background(0); 
  stroke(255);
  // New Camera Capture
  cam = new Capture(this,width, height);
  // New Synth and first parameters
  synth = new Synth("sine"); 
  synth.set("amp", 0.5); 
  synth.set("freq", 40); 
  synth.create(); 
} 
void draw() {
  // line 
  stroke(100); 
  line(scanner-1, 0, scanner-1, height); 
  stroke(255); 
  line(scanner, 0, scanner, height); 
  stroke(strokeCol); 
  // run the camera and load it
  if (cam.available() == true){
  cam.read();
  set(0,0,cam);
  }
  // scanner increment
  scanner = scanner + 10; 
  // loadpixels to check the values
  loadPixels(); 
  for (int i=height-1; i>0; i--) { 
    
  // Condition t create a loop
    
      if (scanner >= width) {
      scanner = 0;
      synth.set("val1", ((height/2)-i)/6); 
      synth.set("val2", ((height/2)-i)/20);
      synth.set("val3", 0); 
  }
    
    float var = pixels[(scanner)+i*(width)];
    if (var == color(30)) {
      // checking pixels grey 30
      synth.set("val1", ((height/2)-i)*2); 
    } 
    if (var == color(70)) {  
      // checking pixels grey 70
      synth.set("val2", ((height/2)-i)/20);
      synth.set("val1", ((height/2)-i)); 

    } 
    if (var == color(250)) {  
      // // checking pixels white
      synth.set("val3", ((height/2)-i));

    } 
  } 
}