Hospital

Hospital is a useful assets in Warzone Idle.

It has a level, initialSave, and fees to upgrade. The number of given "fees to upgrade" decides the maximum level.

When no more than 4 connections away, the save is doubled.

When upgrading, the result save is a fixed multipler of initialSave. The first few are: [1, 1.9, 3.4, 5.5, 8.2, 11.5, 15.4]. Base on those numbers, the function should be multiplier=0.3*Lv^2+0.7.