public void drawShip() {
    resetMatrix();    //apparently OpenGL sets a default trans matrix which has to be reset everytime
    
    translate(pos.x, pos.y, pos.z);  //we move the ship to previously saved position
    rotateZ(radians(rot.z));        //rotating it as needed
    rotateX(radians(rot.x));
    translate(0, 0, delta);          //moving forward by delta (local Z-axis)
    delta = 0;  //reseting delta so that we don't move if there's no button push
    
    //the magic
    PMatrix p = getMatrix();  //apparently you can get the transform matrix
                              //functionality which is NOT documented in reference!
    float[] arr = {2,3};      // you need to supply a float array in order to get the matrix value (dunno why)
    pos.x = p.get(arr)[3];    //getting the right row of the matrix (which is translation) and put it in pos
    pos.y = p.get(arr)[7];
    pos.z = p.get(arr)[11];
    //end of magic
    
    fill(c);                  //building the ship model
    box(70, 8, 20);
    box(20, 10, 50);
    translate(0, -10, 20);
    box(10, 30, 10);
  }
  
  //this function is called every time forward/backward button is pressed
  public void move(int f) {    
    delta += f*speed;
  }