Modify elements in a for loop separately using PGraphics

Processing Coding Questions
1

Hello!! I have made a figure with a for loop inside a class, and I want to make each element made in the loop have different colors. Here is my code. Any help would be great…


float x;
float y;
Madre c;
//MadreLider d;
PGraphics lider, trazo;
String estado = "";
//paleta p;
color aColor = color( random(255),random(255),random(255) );

void setup() {
  //size (1000,600);

  fullScreen();
  //background(200, 50, 255);

  trazo = createGraphics(width, height);
  lider = createGraphics(width, height);
//d = new MadreLider();
  c = new Madre();
  estado = "recto";
  
}

void draw() {
  noStroke();


  //rect(0, 0, width, height);



  //translate(500,700);
  //lider.beginDraw();

  //d.actualizar();
  //d.dibujar();

  c.dibujar(trazo, color(aColor));
  lider.beginDraw();
  lider.clear();
  lider.endDraw();
  c.dibujar(lider, color(0,255,0));

  image(trazo, 0, 0);
  image(lider, 0, 0);
  
  
  
    
    
  c.mover();
  
  
  c.dibujar(trazo, color(aColor));
  lider.beginDraw();
  lider.clear();
  lider.endDraw();
  c.dibujar(lider, color(255, 0, 0));

  }
  

class Madre {
  //atributos
  float x, y;
  float diametro;
  color colorRelleno;
  float velocidad;
  float rotacion;
  float r;
 
  int b = int( random(0,4) );
  int a = int( random(1,4) );
  String[] colores = {};
  
  color aColor = (int) random(#000000);



  //constructor
  Madre() {
    x = width / 2;
    y = height + 200;
    diametro =  70;
    colorRelleno = (50);
    r = random (0,5);
   
    velocidad = 1;
   
    //int(random(a, b));
    

     //int a = (int) random(80, 420), b = (int) random(20, 495);
   ;
  }
  
  void mover()
  {
    y -= velocidad;
    rotacion = 0.03*(frameCount);
  }



  //métodos
  void dibujar(PGraphics capa, color miColor) {
    capa.beginDraw();
    float modulo = 40+20*cos(frameCount/14.0);
    
    capa.pushStyle();
    capa.noStroke();
    capa.fill(miColor);
    
    capa.pushMatrix();
    capa.translate(x, y);
    //se mueve para arriba
    //translate(x,y--);
    capa.rotate(rotacion);
    //rotate(radians(frameCount));

    
    for (int i = -b; i <= b; i++) {
      for (int j = -a; j <= a; j++) {  
        
        //capa[i].dibujar;
        capa.ellipse(i*modulo, j*modulo, 20, 20);
        
      }
    }
    capa.popMatrix();
    capa.popStyle();
    capa.endDraw();
  }
}
2

you need to repeat this line aColor = color( random(255), random(255), random(255) );

so aColor is set to a new random color when needed

Example:



float x;
float y;
Madre madreObject;
//MadreLider d;
PGraphics lider, trazo;
String estado = "";
//paleta p;
color aColor = color( random(255), random(255), random(255) );

void setup() {
  //size (1000,600);

  fullScreen();
  //background(200, 50, 255);

  trazo = createGraphics(width, height);
  lider = createGraphics(width, height);
  //d = new MadreLider();
  madreObject = new Madre();
  estado = "recto";
}

void draw() {
  noStroke();

  //rect(0, 0, width, height);
  //translate(500,700);
  //lider.beginDraw();

  //d.actualizar();
  //d.dibujar();

  aColor = color( random(255), random(255), random(255) );
  madreObject.dibujar(trazo, color(aColor));
  lider.beginDraw();
  lider.clear();
  lider.endDraw();
  madreObject.dibujar(lider, color(0, 255, 0));

  image(trazo, 0, 0);
  image(lider, 0, 0);

  madreObject.mover();

  aColor = color( random(255), random(255), random(255) );
  madreObject.dibujar(trazo, color(aColor));
  lider.beginDraw();
  lider.clear();
  lider.endDraw();
  madreObject.dibujar(lider, color(255, 0, 0));
}

// ====================================================

class Madre {
  //atributos
  float x, y;
  float diametro;
  color colorRelleno;
  float velocidad;
  float rotacion;
  float r;

  int b = int( random(0, 4) );
  int a = int( random(1, 4) );
  String[] colores = {};

  color aColor = (int) random(#000000);

  //constructor
  Madre() {
    x = width / 2;
    y = height + 200;
    diametro =  70;
    colorRelleno = (50);
    r = random (0, 5);

    velocidad = 1;
    //int(random(a, b));
    //int a = (int) random(80, 420), b = (int) random(20, 495);
  }

  //métodos
  void mover() {
    y -= velocidad;
    rotacion = 0.03*(frameCount);
  }

  void dibujar(PGraphics capa, color miColor) {
    capa.beginDraw();
    float modulo = 40+20*cos(frameCount/14.0);

    capa.pushStyle();
    capa.noStroke();
    capa.fill(miColor);

    capa.pushMatrix();
    capa.translate(x, y);
    //se mueve para arriba
    //translate(x,y--);
    capa.rotate(rotacion);
    //rotate(radians(frameCount));


    for (int i = -b; i <= b; i++) {
      for (int j = -a; j <= a; j++) {  

        //capa[i].dibujar;
        capa.ellipse(i*modulo, j*modulo, 20, 20);
      }
    }
    capa.popMatrix();
    capa.popStyle();
    capa.endDraw();
  }
}