Let me announce this that, together with my leading editor, we are finishing work on the second edition of my simulations book:
"Computer Simulations in Physics, edition 2", Maciej Matyka
Helion (polish), [368 pages] 
Topics: numerical methods, spring mass systems, soft bodies, cloth dynamics, wave equation,
fluids, Marker-and-cell mehtod, Lattice Boltzmann model and real-time quantum physics.
Codes in C++/HTML5 are now freely available.
Boook release date December 2020.
