import beads.*;

AudioContext ac;

void setup() {
  size(300,300);
  ac = new AudioContext();
  Envelope freqEnv = new Envelope(ac, 500);
  WavePlayer wp = new WavePlayer(ac, freqEnv, Buffer.SINE);
  freqEnv.addSegment(1000, 1000);
  Gain g = new Gain(ac, 1, 0.1);
  g.addInput(wp);
  ac.out.addInput(g);
  ac.start();
}


void draw() {
  int[] p1 = {height/2,width/2}; // Set 1st point p1.
  int[] p2 = {mouseX,mouseY};    // Set 2nd point p2.
  
  int amp = 500;  // Set the amplitube of the wave, in pixels.
  
  // Factors for the placement of the waveform ("polar" placement):
  float fi = atan2(p2[1]-p1[1],p2[0]-p1[0]);                      // fi sets the rotation angle.
  int yp = (int) sqrt(pow((p2[0]-p1[0]),2)+pow((p2[1]-p1[1]),2)); // yp sets the lenght.
  
  // Set the colors
  background(0); 
  stroke(255);
  
// Set points so can see the points...
ellipse(p1[0],p1[1],10,10);
ellipse(p2[0],p2[1],10,10);

// Apply the transformation 
  translate(p1[0],p1[1]);
  rotate(fi);
  
  for(int i = 0 ; i < yp; i++) {   // In case it "throws exception out of bounds for sth" for this line, set yp-1 instead of yp.
    
    int buffIndex = i * ac.getBufferSize() / width;
    int buffIndex2= (i+1) * ac.getBufferSize() / width;

    int vOffset = (int)((1+ ac.out.getValue(0, buffIndex)) * amp);
    int vOffset2 = (int)((1+ ac.out.getValue(0, buffIndex2)) * amp);

  line(i,vOffset-amp,i+1,vOffset2-amp);
  // or point(i,vOffset-amp);
  
 /* Just for fun, try play by changing the prices at fact1 and fact2, see what happens.
 Sths are not good, thers are usefool...
 float fact1 = 1.1;    // or float fact1 = 1.1;
 float fact2 = 0.9;    //    float fact2 = 1.1;
 
line(i,vOffset-amp*fact1,i+1,vOffset2-amp*fact2);
*/
  }
}