/** 
 * RippleFX v1.0.0 by cdmb architects (cc) 2008<br />
 * The sketch let's you generate concetric ripples based<br />
 * on wave frequencies. Lower frequecies produce larger ripples.<br />
 * <br />
 * Use the scroll bars to adjust the variables.<br />
 * Use your mouse to draw:<br>
 
 * Press the left mous button to generate a ripple.
 * Hold the mouse button down to intensifiy it.
 * Move you mouse whil holding the button down to paint ripples.
 * Release the mouse button to stop sketching.
 * <br />
 * For further information and questions about RippleFX please<br />
 * take a look at the documentation, the examples, or the <br />
 * website at http://barlieb.com/index.php?option=com_content&amp;task=view&amp;id=75&amp;Itemid=88<br />
 * <br />
 * key combinations:<br />
 * ALT+h hide and show controllers<br />
 * ALT+k bring the key menu to the front. use the arrow keys.<br />
 * Hold the ALT key and move controllers by dragging them.<br />
 */
import controlP5.*;

ControlP5 controlP5;

float f = 31.5;                                       // Wave Frequency
float n = 1500;                                       // Number of ripples

void setup() {
  size(500,500);
  background(255);
  frameRate(25);
  controlP5 = new ControlP5(this);
  controlP5.addSlider("wave frequency",0,400,f,1,50,400,12).setId(1);
  controlP5.addSlider("number of ripples",0,2000,n,1,65,400,12).setId(2);
  controlP5.setColorBackground(255);
  controlP5.setColorForeground(0);
  controlP5.setColorActive(0xffff0000);
  controlP5.setColorLabel(0);
}
void controlEvent(ControlEvent theEvent) {            // Controls the scrollbar and variables
  println("got a control event from controller with id "+theEvent.controller().id());
  switch(theEvent.controller().id()) {
    case(1):
    f = (float)(theEvent.controller().value());
    break;
    case(2):
    n = (float)(theEvent.controller().value());
    break;
  }
}
void draw() {
  noStroke();                                         // White Blockout Top Area
  fill(255);
  rect(0,0,500,77);
  float c = 340.29;                                   // Speed of sound at sea level
  float w = c/f;                                      // Wavelength
  for (float i = w; i < n; i+=w) {                    // For Loop controls concetric ripples based on wavelengths
    if(mousePressed) {                                // If mouse pressed the draw the concentric ripple
      smooth();
      noFill();
      strokeWeight(0);
      stroke(random(i),0,0,random(0,50));
      ellipse(mouseX,mouseY,i,i);
    } 
    else {  
    }
  }
  PFont font;                                         // Prints all the info to the window.
  font=loadFont("CourierNewPSMT-12.vlw");
  textFont(font);
  fill(0);
  text("RippleFX v1.0.0 ",0,12);
  text("cdmb architects (cc) 2008 ",0,24);
  text("press/hold/move/release the mouse to sketch",0,40);
}