app/cards/empires/landmarks/bandit_fort.js
BanditFort = class BanditFort extends Landmark {
victory_points(player_cards) {
return this.point_variable(player_cards) * -2
}
point_variable(player_cards) {
return _.size(_.filter(player_cards, function(card) {
return _.includes(['Silver', 'Gold'], card.name)
}))
}
}