public UniverseDrawable(GravityPowerDelegate gravityPowerFormula) : base(gravityPowerFormula) { }
public Universe(GravityPowerDelegate gravityPowerFormula) =>
public UniverseDrawable(GravityPowerDelegate gravityPowerFormula) : base(gravityPowerFormula) { }
public Universe(GravityPowerDelegate gravityPowerFormula) =>