Hello , Im having problems witch my sketch . I have used that class definition in eclipse :

package misketch2;

import processing.opengl.*;
import processing.core.*;

public  class Ficha {
   
    PApplet parent;
    final int ancho_casilla = 200/8;
   
    public Ficha(PApplet p){
        parent=p;
    }
   
    public void mover2d( int posx , int posy){
        parent.pushMatrix();
        Cilindro((ancho_casilla-4), 40, 20);
        parent.translate(posx,posy);
        parent.popMatrix();
    }
   
    public void mover3d (int posx, int posy, int posz){
        parent.pushMatrix();         
        parent.translate(posx,posy,posz);
        parent.popMatrix();
    }
    public void dibujar(){
        Cilindro((ancho_casilla-4), 40, 20);       
    }
    public void rotar(){
        parent.pushMatrix();
        parent.rotateX(4.7F);
        parent.popMatrix();
    }


And then I do something like that in my draw() function on the main class:

      Ficha ficha1 = new Ficha(this);
      ficha1.dibujar();
      ficha1.rotar();
      rotateX(rotX + distY);
      ficha1.mover2d(width/2,height/2);

The thing that I want to know is why all works fine except all the callings to the pushMatrix(), translate senteces from inside the class methods,etc.
Does anyone know why it happens that?