ScoreBoxFactory.java 文件源码

private double redeemItems(MatchPlayer player) {
    if(redeemables.isEmpty()) return 0;

    final PlayerInventory inventory = player.getInventory();
    return Slot.Player.player()
                      .map(slot -> {
                          final ItemStack item = slot.getItem(inventory);
                          final double points = redeemItem(item);
                          if(Double.isNaN(points)) {
                              return 0D;
                          } else {
                              // Note that redeeming a zero-amount stack will remove the item, but give no points
                              slot.putItem(inventory, ItemUtils.something(item).orElse(null));
                              return points;
                          }
                      })
                      .reduce(0D, (a, b) -> a + b);
}