int Y_AXIS = 1;
int X_AXIS = 2;
color b1, b2;
float angle;
/*int weight1=30;
int weight2=40;
int distance1=144;
int distance2=140;*/

Block block1;
Block block2;

void setup()
{
  window.Processing.data.weight1=30;
  window.Processing.data.weight2=40;
  window.Processing.data.distance1=144;
  window.Processing.data.distance2=140;
  size(620,350);
  b1 = color(76,117,117);
  b2 = color(100,171,222); 
  rectMode(CENTER);
  smooth(4);
}

void draw()
{
  background(200,226,250);
  pushMatrix();
  block1= new Block(color(78,121,135),-window.Processing.data.distance1,window.Processing.data.weight1,"left");
  block2= new Block(color(78,92,135),window.Processing.data.distance2,window.Processing.data.weight2,"right");
  translate(width/2, (height-120));
  rotateMe();
  noStroke();
  rect(0,22, 26, 65);
  setGradient(-13,-10, 26/2, 65, b1, b2, X_AXIS);
  setGradient(0,-10, 26/2, 65, b2, b1, X_AXIS);
  fill(150,102,101);
  ellipse(0, 0, 10, 10);
  fill(204,148,147);
  ellipse(0, 0, 6, 6);
  popMatrix();
}

void rotateMe(){
  int chk1=round(window.Processing.data.distance1*window.Processing.data.weight1*9.8/100);
  int chk2=round(window.Processing.data.distance2*window.Processing.data.weight2*9.8/100);       
  if (chk1 != chk2) {

     if (chk1 < chk2 && angle<23) {
       angle=angle+1;
        }
     if (chk1 > chk2 && angle>-23) {
       angle=angle-1;
        }
     }
   if(chk1==chk2){
     if(angle<0){
       angle=angle+1;
     }
     if(angle>0){
       angle=angle-1;
     }
   }
  rotate(radians(angle)); 
  fill(74,108,138);
  stroke(88);
  strokeWeight(1.7);
  rect(0,0, 400, 7,10,10,0,0);
  
  stroke(255,0,0);
  strokeWeight(.5);
  line(-200,-110,200,-110);
  
  line(-175,-120,-175,-100);
  line(-70,-120,-70,-100);
  line(175,-120,175,-100);
  line(70,-120,70,-100);
  
  line(-170,-115,-170,-105);
  line(-165,-115,-165,-105);
  line(-160,-115,-160,-105);
  line(-155,-115,-155,-105);
  line(-150,-115,-150,-105);
  line(-145,-115,-145,-105);
  line(-140,-115,-140,-105);
  line(-135,-115,-135,-105);
  line(-130,-115,-130,-105);
  line(-125,-115,-125,-105);
  line(-120,-115,-120,-105);
  line(-115,-115,-115,-105);
  line(-110,-115,-110,-105);
  line(-105,-115,-105,-105);
  line(-100,-115,-100,-105);
  line(-95,-115,-95,-105);
  line(-90,-115,-90,-105);
  line(-85,-115,-85,-105);
  line(-80,-115,-80,-105);
  line(-75,-115,-75,-105);
  
  line(0,-120,0,-100);
  
  line(170,-115,170,-105);
  line(165,-115,165,-105);
  line(160,-115,160,-105);
  line(155,-115,155,-105);
  line(150,-115,150,-105);
  line(145,-115,145,-105);
  line(140,-115,140,-105);
  line(135,-115,135,-105);
  line(130,-115,130,-105);
  line(125,-115,125,-105);
  line(120,-115,120,-105);
  line(115,-115,115,-105);
  line(110,-115,110,-105);
  line(105,-115,105,-105);
  line(100,-115,100,-105);
  line(95,-115,95,-105);
  line(90,-115,90,-105);
  line(85,-115,85,-105);
  line(80,-115,80,-105);
  line(75,-115,75,-105); 
  
  textSize(14);
  fill(0, 102, 153);
  text("175 cm", -185, -127);
  text("70 cm", -80, -127);
  text("175 cm", 165, -127);
  text("70 cm", 60, -127);
  text("0", -4, -127); 
  
  strokeWeight(1);
  fill(150,102,101);
  ellipse(0, 0, 10, 10);
  fill(204,148,147);
  ellipse(0, 0, 6, 6);
  block1.display();
  block2.display();  
  rotate(-radians(angle));
   
}

void setGradient(int x, int y, float w, float h, color c1, color c2, int axis ) {

  noFill();

  if (axis == Y_AXIS) {  // Top to bottom gradient
    for (int i = y; i <= y+h; i++) {
      float inter = map(i, y, y+h, 0, 1);
      color c = lerpColor(c1, c2, inter);
      stroke(c);
      line(x, i, x+w, i);
    }
  }  
  else if (axis == X_AXIS) {  // Left to right gradient
    for (int i = x; i <= x+w; i++) {
      float inter = map(i, x, x+w, 0, 1);
      color c = lerpColor(c1, c2, inter);
      stroke(c);
      line(i, y, i, y+h);
    }
  }
}

class Block { 
  color c;
  float xpos;
  float ypos;
  float boxWeight;
  String side;

  Block(color tempC, float tempXpos, float tempBoxWeight, String tempSide) {
    side = tempSide; 
    c = tempC;
    boxWeight = tempBoxWeight;
    ypos = -3.5-(boxWeight*.6)/2; 
    xpos=tempXpos;
    /*if(side=="left"){
    xpos = -150+boxWeight/3;}else{
      xpos = 150-boxWeight/3;}*/
  }
  
  void display() {
    stroke(0);
    fill(c);
    rectMode(CENTER);
    rect(xpos,ypos,boxWeight/1.5,boxWeight*.6);
    stroke(46,242,141);
    strokeWeight(.9);
    line(block1.xpos,-120,block1.xpos,10);
    
    line(block2.xpos,-120,block2.xpos,10);
    strokeWeight(1);
  }
}