import ddf.minim.*; // for minim audio
import rita.*;      // for rita

/*
 * @desc Use mouse-click position to control audio sample
 */ 

RiText rt;

void setup() 
{
  size(300, 300);    
  rt = new RiText(this,"click to scrub");
  rt.loadSample("beat.mp3").loop();
  
  fill(255);
  stroke(255);
  strokeWeight(5);
}

void draw() 
{
  background(80);
  float pos = getSamplePosition();
  line(pos*width,0,pos*width,height);                        
}

float getSamplePosition()
{
  int current = rt.sample.getCurrentFrame();
  int total = rt.sample.getNumFrames();  
  return current/(float)total; 
}

void mouseClicked()
{
  float frame = mouseX / (float)width;
  frame *= rt.sample.getNumFrames();
  rt.sample.setCurrentFrame((int)frame);
}