N_GEMVALUE
taxes = N_TAXAMOUNT / 100.0 * (N_GEMVALUE * gems + gold);
dtemp = floor(taxes / N_GEMVALUE + 1.0); /* number of gems to
Player.p_gold += dtemp * N_GEMVALUE;
Player.p_gold += Player.p_gems * N_GEMVALUE;
(double) N_GEMVALUE, Player.p_gems);
Player.p_gold += numitems * N_GEMVALUE;