Dilation - OpenProcessing

mySketch.js
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// DILATION BY WAJEEH KHAN - AUGUST 19th, 2024
Eye playerEye;
​
// BUTTON SIZE
float a = 325;
float b = 0;
float c = 100;
float d = 40;
​
// EYE VALUES
float dilationFactor = 1;
float maxpSize = 200/2.2;
float minpSize = 25; /// 200 / 8
​
// BACKGROUND VALUES
int bgcolor = 255;
int antibg;
​
void setup() {
  size(750, 750);
  frameRate(30);
  playerEye = new Eye(width/2, height/2, 200); // Player eye
}
​
void draw() {
  background(bgcolor);
  playerEye.update(mouseX, mouseY);
  playerEye.display();
  
  if (bgcolor == 255){
    antibg = 0;
  } else {
    antibg = 255;
  }
  
  // Hover over light source
  if(mouseX > a && mouseX < a+c && mouseY > b && mouseY < b+d){
     cursor(HAND);
  } else {
    cursor(ARROW);
  }
  
  // LIGHT BULB
  fill(255,215,0);
  noStroke();
  arc(375, 0, 80, 60, 0, PI, OPEN);
  noFill();
  rect(a,b,c,d);
  fill(antibg);  
}
​
class Eye {
  int x, y;
  float size;
  float angle = 0.0;
  
  Eye(int tx, int ty, int ts) {
    x = tx;
    y = ty;
    size = ts;
 }
​
 // Eye angle 
  void update(int mx, int my) {
    angle = atan2(my-y, mx-x);
  }
  
  void display() {
    stroke(0);
    // BLACK => Dilate pupil
    if(bgcolor == 0){
      if(minpSize * dilationFactor == maxpSize){
        dilationFactor = 8/2.2;
      } else if(minpSize * dilationFactor < maxpSize){
        dilationFactor += 0.23;
      }
    }
    
    // WHITE Dilate pupil
    if(bgcolor == 255){
      if(minpSize * dilationFactor == minpSize){
        dilationFactor = 1;
      } else if(minpSize * dilationFactor > minpSize){
        dilationFactor -= 0.01;
      }
    }
    pushMatrix();
    strokeWeight(16);
    translate(x, y);
    
    // Eye white
    fill(255);
    ellipse(0, 0, size, size);
    
    rotate(angle);
   
    fill(0); // Black pupil
    // Pupil
    ellipse((minpSize/2) * dilationFactor, 0, dilationFactor * minpSize, dilationFactor * minpSize);
    popMatrix();
  }
}
​
void mousePressed(){
   if(mouseX > a && mouseX < a+c && mouseY > b && mouseY < b+d){
     if(bgcolor == 255){
        bgcolor = 0;         
     } else {
       bgcolor = 255;
     }
   }
}