Only allowing increased bets to override previous ones.

lib/currency.js

@@ -1402,20 +1402,17 @@ Currency.prototype.collect_bets = function (caller, bet, amount) {
                 for (var i = 0; i < __self.bets_viewers.length; i++) {
                     if (__self.bets_viewers[i].viewer === caller) {
                         has_bet = true;
-                        __self.bets_board[__self.bets_viewers[i].bet].num -= 1;
-                        __self.bets_board[__self.bets_viewers[i].bet].total -= __self.bets_viewers[i].amount;
-                        __self.bets_viewers[i].bet = bet.idx;
-                        __self.bets_viewers[i].amount = amount;
-                        if (amount >= 1) {
+                        if (amount > __self.bets_viewers[i].amount) {
+                            __self.bets_board[__self.bets_viewers[i].bet].num -= 1;
+                            __self.bets_board[__self.bets_viewers[i].bet].total -= __self.bets_viewers[i].amount;
+                            __self.bets_viewers[i].bet = bet.idx;
+                            __self.bets_viewers[i].amount = amount;
                             __self.bets_board[bet.idx].num += 1;
                             __self.bets_board[bet.idx].total += amount;
                             // add flood users to array
                             if (__self.bets_flood.indexOf(i) < 0) {
                                 __self.bets_flood.push(i);
                             }
-                        // remove from flood if nullified bet
-                        } else if (__self.bets_flood.indexOf(i) > 0) {
-                            __self.bets_flood.splice(__self.bets_flood.indexOf(i), 1);
                         }
                         break;
                     }