time component for staying in game

[z0r0z]

adding a feature where 'longer you're in the game' the more of the pot you get would be useful. otherwise, folks might just wait to join until last minute.

[z0r0z]

this could also be simplified, by having a delay after a set of players join, before they can hit/heal, and that prevents further joins.

[z0r0z]

this should do it