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#! perl |
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|
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# The international bank script. There are five commands one can |
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# give the banker in-game: |
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# - help, will show the usage information |
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# - deposit, can deposit a certain amount of a given currency unit |
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# - withdraw, can give out a certain amount of a given currency unit |
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# provided, the bank account has this amount of money |
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# - exchange, will exchange between royalties and platinum coins |
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# - balance, simply shows how much money one has on his/her account. |
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# |
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# TODO: |
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# - Comment more steps |
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# - Implement exchange() |
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|
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# Subroutine just to calculate exchange rates. |
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sub calc_exchange_rate { |
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my ($value, $from_cur, $to_cur) = @_; |
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|
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$value * $from_cur->value / $to_cur->value |
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} |
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|
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# Calculates and returns how much money someone has starting with the |
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# highest value currency going down. Think of it like having the date |
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# and time in the format of 2006-05-19 03:21:31 UTC instead of 1148001691 |
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# seconds since 1970-01-01 00:00:00 UTC. |
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sub balance { |
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my ($who, $is_wiz) = @_; |
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my $balance = $who->{bank_balance}; |
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|
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unless ($is_wiz) { |
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return "Sorry, you have no balance." |
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unless $balance >= 1; |
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} else { |
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return $who->name." has no balance." |
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unless $balance >= 1; |
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} |
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|
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my $account_info = cf::cost_string_from_value $balance; |
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|
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$is_wiz |
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? $who->name . " has $account_info." |
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: "You have $account_info." |
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} |
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|
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sub transaction { |
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my ($who, $action, $amount, $currency) = @_; |
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|
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my $coin = cf::coin_from_name $currency |
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or return "We don't trade in that currency.\n"; |
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|
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return "You can not $action fractions or weirder numbers." |
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unless $amount =~ /^\d+$/; |
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|
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$currency = $amount > 1 ? $coin->name_pl : $coin->name; |
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|
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my $pay = $amount * $coin->value; |
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|
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# First check for possible overflow and user stupidity |
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if ($pay > 2**30) { |
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return "Sorry, we do not handle that kind of money for one $action."; |
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} elsif ($pay == 0) { |
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return "You can not $action nothing."; |
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} elsif ($pay < 0) { |
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return "You can not $action negative values."; |
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} |
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|
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# Here we handle the transactions |
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if ($action eq "deposit") { |
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if ($who->pay_amount ($pay)) { |
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$who->{bank_balance} += $pay; |
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return "$amount $currency received."; |
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} else { |
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return "You don't have enough money with you."; |
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} |
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} elsif ($action eq "withdraw") { |
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if ($pay <= $who->{bank_balance}) { |
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if ($who->pay_player_arch ($coin->archname, $amount)) { |
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$who->{bank_balance} -= $pay; |
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return "Withdrew $amount $currency"; |
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} else { |
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return "You can't withdraw this many $currency in one go!"; |
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} |
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} else { |
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return "You don't have that much money on your bank account."; |
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} |
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} |
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} |
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|
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sub help { |
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my ($command) = @_; |
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|
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if ($command eq "") { |
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return "You can: |
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|
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deposit <amount> <currency> |
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withdraw <amount> <currency> |
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balance |
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help rates |
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help <deposit|withdraw|balance>"; |
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} elsif ($command eq "deposit") { |
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return "You can deposit some of the money you don't currently use in our bank. To do this, ask me to: |
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deposit <amount> <currency>\nSee help rates for our currencies."; |
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} elsif ($command eq "withdraw") { |
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return "To get the money you stored in our system back, just say: |
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withdraw <amount> <currency>"; |
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} elsif ($command eq "balance") { |
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return "I can tell you how much money you are saving in our bank, just ask me about your balance."; |
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} elsif ($command eq "rates") { |
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my @coins = cf::coin_archetypes; |
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my $exchange_rates = "Here is a list of exchange rates:\n\n"; |
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|
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for my $f (0 .. $#coins) { |
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for my $t ($f + 1 .. $#coins) { |
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$exchange_rates .= |
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sprintf " One %s is %d %s.\n", |
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$coins[$f]->name, |
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(calc_exchange_rate 1, $coins[$f], $coins[$t]), |
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$coins[$t]->name_pl; |
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} |
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} |
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|
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return "$exchange_rates\nThis may change a bit with the stock markets but don't expect it to be much."; |
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} |
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} |
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|
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cf::register_script_function "bank::command" => sub { |
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my ($who, $msg, $npc) = @_; |
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|
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my ($cmd, $arguments) = split /\s+/, $msg, 2; |
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my ($amount, $currency) = split /\s+/, $arguments, 2; |
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my $service_charge = 5; |
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my $fees = - ($service_charge / 100) + 1; |
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|
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if ($cmd eq "balance") { |
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if ($who->flag (cf::FLAG_WIZ) && $arguments =~ /\S/) { |
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cf::async { |
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if (my $player = cf::player::find $arguments) { |
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$who->reply ($npc, |
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"Nancy says: " . balance ($player->ob, 1), |
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cf::NDI_BROWN | cf::NDI_REPLY |
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); |
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} |
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}; |
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} else { |
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$who->reply ($npc, balance ($who, 0)); |
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} |
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|
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} elsif ($cmd eq "balance" and !$arguments) { |
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$who->reply ($npc, "Balance of whom?"); |
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|
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} elsif ($cmd eq "deposit" and $currency) { |
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$who->reply ($npc, transaction $who, "deposit", $amount, $currency); |
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|
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} elsif ($cmd eq "deposit" and $amount and $currency eq "") { |
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$who->reply ($npc, "deposit $amount of what: " . join ", ", cf::coin_names); |
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|
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} elsif ($cmd eq "deposit" and $amount eq "" and $currency eq "") { |
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$who->reply ($npc, "How much do you want to deposit?"); |
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|
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} elsif ($cmd eq "withdraw" and $currency) { |
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$who->reply ($npc, transaction $who, "withdraw", $amount, $currency); |
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|
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} elsif ($cmd eq "withdraw" and $amount and $currency eq "") { |
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$who->reply ($npc, "Withdraw $amount of what: " . join ", ", cf::coin_names); |
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|
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} elsif ($cmd eq "withdraw" and $amount eq "" and $currency eq "") { |
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$who->reply ($npc, "How much do you want to withdraw?"); |
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|
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} elsif ($cmd eq "help" or $cmd eq "yes" and $arguments eq "") { |
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$who->reply ($npc, help $arguments); |
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|
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} elsif ($cmd eq "help" or $cmd eq "yes" and $arguments ne "") { |
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$who->reply ($npc, help); |
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|
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} else { |
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$who->reply ($npc, "Do you need help?"); |
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} |
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} |
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|
