class Material {
  int x, y, density;
  float sungas;
  color matType;
  Material(int X, int Y, int dEnsity) {
    x = X;
    y = Y;
    density = dEnsity;
    println(density);
    rect(x, y, density, density);
  }

  void update(color type, float suNGas) {
    matType = type;
    sungas = suNGas;
    noStroke();
    fill(matType, suNGas);
    rect(x, y, density, density);
  }
}