Survival before disaster

This world was created for survival on a local server, a blockman server or realms. The world is optimized for weak devices, in the next version the drawing will be uniform, but a powerful device will be needed. The rules: players survive until the administrator decides to flood the world. The difference between this realization of tsunami and others is that the wave works completely on command blocks without additional things, and also able to flow in different directions, skirting the terrain. In the future I plan to add realistic destruction when game developers upgrade command blocks