/* built with Studio Sketchpad: 
 *   https://sketchpad.cc
 * 
 * observe the evolution of this sketch: 
 *   https://studio.sketchpad.cc/sp/pad/view/ro.keV5EdcvWTV/rev.823
 * 
 * authors: 
 *   
 *   
 *   
 *   
 *   
 *   
 *   
 *   
 *   Casey
 *   
 *   
 *   
 *   
 *   
 *   
 *   Darby Rathbone
 *   
 *   
 *   

 * license (unless otherwise specified): 
 *   creative commons attribution-share alike 3.0 license.
 *   https://creativecommons.org/licenses/by-sa/3.0/ 
 */ 



PGraphics colorchooser;
color current= new color();
boolean touched = false;
var touches[];
var ptouches[];
 
boolean colorchoosermouse() {
  if (5<=mouseX && mouseX<=110 && 5<=mouseY && mouseY<=110)
  {
    current = colorchooser.get(mouseX, 100-mouseY);
    return true;
  }else {return false;}
}
void colorchoosersetup() {
  colorchooser = createGraphics(110, 110, P3D);
 
  colorchooser.beginDraw();
  colorchooser.noStroke();
  colorchooser.background(100);
 
  colorchooser.colorMode(HSB, 100);
 
  for (int i=0; i<=100; i++) {
 
    for (int j=0; j<=100; j++) {
      colorchooser.saturation(j);
      colorchooser.stroke(i, j*2, (100-j)*2);
 
      colorchooser.point(i+5, j+5);
    }
  }
 
  colorchooser.endDraw();
}
int count;
 
int num = 60;
float[] mx = new float[0];
float[] my = new float[0];
int value;
//// Setup ////
void setup() {
  colorchoosersetup();
  size(500, 500);
  count = 0;
  frameRate(30);
  smooth();
  value = 0;
  strokeJoin(BEVEL);
  strokeCap(SQUARE);
  stroke(255, 1);
  strokeWeight(2);
  background(255);
}
 
//// mouseReleased ////
void mouseReleased() {
  if (value == 255) {
    value = 0;
  }
}
//// mousePressed ////
void mousePressed() {
 
  if (!colorchoosermouse())
  {
    if (value == 0) {
      mx = new float[0];
      my = new float[0];
      value = 255;
    }
  }
}
//// mouseDragged ////
void mouseDragged() {
  float dy, dx, db;
  db =  dist(pmouseX, pmouseY, mouseX, mouseY);
  for (int j = 0;j<=db;j+=5) {
    mx = append(mx, lerp(pmouseX, mouseX, j/db));
    my = append(my, lerp(pmouseY, mouseY, j/db));
  }
  //mx = append(mx, mouseX);
  //my = append(my, mouseY);
 
  //println(mx+"|"+my+"  |  "+mx.length+"|"+count);
  //println(my);
  for (int k = 1;k<=db;k+=5)
  {
 
    for (int i = mx.length-1; i >= 1; i--) {
 
      float dg = dist(mx[mx.length-k], my[mx.length-k], mx[i], my[i]); 
      //println(mx[mx.length-1]);
      if (dg > 35 || dg < 5) {
        continue;
      } 
      else {
        stroke(current, dg/15);
        line(mx[mx.length-k], my[mx.length-k], mx[i], my[i]);
        //image(colorchooser,0,0)
      }
    }
    //println(lerp(pmouseX,mouseX,k/db));
  }
  image(colorchooser, 0, 0);
}