0.5 is not a valid heart count. It's 1 per health. 2 = 1 full heart

Unless this was changed in the port, we multiply the config value by 2 to only deal with whole hearts. Could totally change that, but we'd have to find a backwards-compatible way. See #56 for some background.

There shouldn't have been changes in the port, I might've been mistaken

Decimals are invalid in the config though since it expects an integer