  We have developed a specifically tailored relativistic,
radiation-hydrodynamics Lagrangian code, that enables us to simulate the
evolution of the main observables (light curve, evolution of photospheric
velocity and temperature) in core-collapse supernova (CC-SN) events. The code
features, some simulations as well as the implications of our results in
connection with a possible "standardization" of the hydrogen-rich CC-SNe are
briefly discussed. The possible role of this code in the development of a
"CC-SNe Laboratory" for describing the evolution of a CC-SN event in a
"self-consistent" way (from the main sequence up to the post-explosive phases)
from a model/data comparison of light curves and spectra is also addressed.
