| … | |
… | |
| 8 | # provided, the bank account has this amount of money |
8 | # provided, the bank account has this amount of money |
| 9 | # - exchange, will exchange between imperials and platinum coins |
9 | # - exchange, will exchange between imperials and platinum coins |
| 10 | # - balance, simply shows how much money one has on his/her account. |
10 | # - balance, simply shows how much money one has on his/her account. |
| 11 | # |
11 | # |
| 12 | # TODO: |
12 | # TODO: |
| 13 | # - Continue modularising |
|
|
| 14 | # * transaction() |
|
|
| 15 | # - Comment more steps |
13 | # - Comment more steps |
| 16 | |
14 | |
| 17 | # The units are being used in each sub so they are declared globally. |
15 | # The units are being used in each sub so they are declared globally. |
| 18 | my %unit = ( |
16 | my %unit = ( |
| 19 | silver => 1, |
17 | silver => 1, |
| 20 | gold => 10, |
18 | gold => 10, |
| 21 | platina => 50, |
19 | platina => 50, |
| 22 | imperial => 10000, |
20 | imperial => 10000, |
| 23 | ); |
21 | ); |
| 24 | |
22 | |
| 25 | # Subroutine just to calculate exchange rates, I purposefully left in the |
23 | # Subroutine just to calculate exchange rates. |
| 26 | # exchange rates for imperial => imperial, platina => platina, etc. |
|
|
| 27 | sub calc_exchange_rate { |
24 | sub calc_exchange_rate { |
| 28 | my ($value, $from_cur, $to_cur) = @_; |
25 | my ($value, $from_cur, $to_cur) = @_; |
| 29 | |
26 | |
| 30 | if ($unit{$from_cur} and $unit{$to_cur}) { |
27 | if ($unit{$from_cur} and $unit{$to_cur}) { |
| 31 | return $value * $unit{$from_cur} / $unit{$to_cur}; |
28 | return $value * $unit{$from_cur} / $unit{$to_cur}; |
| … | |
… | |
| 55 | |
52 | |
| 56 | sub transaction { |
53 | sub transaction { |
| 57 | my ($who, $action, $amount, $currency) = @_; |
54 | my ($who, $action, $amount, $currency) = @_; |
| 58 | my $pay = $amount * $unit{$currency}; |
55 | my $pay = $amount * $unit{$currency}; |
| 59 | |
56 | |
|
|
57 | if (!$unit{$currency}) { |
|
|
58 | return "We don't trade in that currency."; |
|
|
59 | } |
|
|
60 | |
| 60 | # First check for possible overflow and user stupidity |
61 | # First check for possible overflow and user stupidity |
| 61 | if ($amount > 10000) { |
62 | if ($amount > 10000) { |
| 62 | return "Sorry, we do not handle more than 10000 units for one ".$action."."; |
63 | return "Sorry, we do not handle more than 10000 units for one ".$action."."; |
| 63 | } elsif ($amount == 0) { |
64 | } elsif ($amount == 0) { |
| 64 | return "You can not ".$action." nothing."; |
65 | return "You can not ".$action." nothing."; |
| 65 | } elsif ($amount < 0) { |
66 | } elsif ($amount < 0) { |
| 66 | return "You can not ".$action." negative values."; |
67 | return "You can not ".$action." negative values."; |
| 67 | } else { |
68 | } |
|
|
69 | |
| 68 | # Here we handle the transactions |
70 | # Here we handle the transactions |
| 69 | if ($action eq "deposit") { |
71 | if ($action eq "deposit") { |
| 70 | if ($who->pay_amount ($pay)) { |
72 | if ($who->pay_amount ($pay)) { |
| 71 | $who->{bank_balance} += $pay; |
73 | $who->{bank_balance} += $pay; |
| 72 | return "$amount $currency received."; |
74 | return "$amount $currency received."; |
|
|
75 | } else { |
|
|
76 | return "You don't have enough money with you."; |
|
|
77 | } |
|
|
78 | } elsif ($action eq "withdraw") { |
|
|
79 | if ($who->{bank_balance} - $pay > 0) { |
|
|
80 | $who->{bank_balance} -= $pay; |
|
|
81 | if ($currency eq "imperial") { |
|
|
82 | my $money = cf::object::new ("imperial"); |
|
|
83 | $money->set_property (1, 24, $amount); |
|
|
84 | $money->insert_in_ob ($who); |
| 73 | } else { |
85 | } else { |
| 74 | return "You don't have enough money with you."; |
86 | my $money = cf::object::new ($currency."coin"); |
|
|
87 | $money->set_property (1, 24, $amount); |
|
|
88 | $money->insert_in_ob ($who); |
| 75 | } |
89 | } |
| 76 | } elsif ($action eq "withdraw") { |
|
|
| 77 | if ($who->{bank_balance} - $pay > 0) { |
|
|
| 78 | $who->{bank_balance} -= $pay; |
|
|
| 79 | if ($currency eq "imperial") { |
|
|
| 80 | my $money = cf::object::new ("imperial"); |
|
|
| 81 | $money->set_property (1, 24, $amount); |
|
|
| 82 | $money->insert_in_ob ($who); |
|
|
| 83 | } else { |
|
|
| 84 | my $money = cf::object::new ($currency."coin"); |
|
|
| 85 | $money->set_property (1, 24, $amount); |
|
|
| 86 | $money->insert_in_ob ($who); |
|
|
| 87 | } |
|
|
| 88 | return "Withdrew $amount $currency"; |
90 | return "Withdrew $amount $currency"; |
| 89 | } |
|
|
| 90 | } |
91 | } |
| 91 | } |
92 | } |
| 92 | } |
93 | } |
| 93 | |
94 | |
| 94 | sub on_say { |
95 | sub on_say { |
| … | |
… | |
| 120 | $who->message ($ob->name." says: Withdraw $amount of what: ".$units.".", cf::NDI_WHITE); |
121 | $who->message ($ob->name." says: Withdraw $amount of what: ".$units.".", cf::NDI_WHITE); |
| 121 | } elsif ($cmd eq "withdraw" and $amount eq "" and $currency eq "") { |
122 | } elsif ($cmd eq "withdraw" and $amount eq "" and $currency eq "") { |
| 122 | $who->message ($ob->name." says: How much do you want to withdraw?", cf::NDI_WHITE); |
123 | $who->message ($ob->name." says: How much do you want to withdraw?", cf::NDI_WHITE); |
| 123 | } |
124 | } |
| 124 | |
125 | |
| 125 | elsif ($cmd eq "help" || "yes") { |
126 | elsif ($cmd eq "help" or $cmd eq "yes") { |
| 126 | $who->message ($ob->name." says: ".help($arguments), cf::NDI_WHITE); |
127 | $who->message ($ob->name." says: ".help($arguments), cf::NDI_WHITE); |
|
|
128 | } |
|
|
129 | |
|
|
130 | else { |
|
|
131 | $who->message ($ob->name." says: Do you need help?", cf::NDI_WHITE); |
| 127 | } |
132 | } |
| 128 | } |
133 | } |
| 129 | |
134 | |
| 130 | sub help { |
135 | sub help { |
| 131 | my ($command) = @_; |
136 | my ($command) = @_; |
| … | |
… | |
| 149 | return "We exchange between imperial notes and platinum coins at a very low price. To change from platinum to imperials, say: |
154 | return "We exchange between imperial notes and platinum coins at a very low price. To change from platinum to imperials, say: |
| 150 | exchange <amount> platina\nTo change from imperials to platinum, say: |
155 | exchange <amount> platina\nTo change from imperials to platinum, say: |
| 151 | exchange <amount> imperial\nWe currently only exchange between these two currencies. If you want to know more about exchange rates, ask me: |
156 | exchange <amount> imperial\nWe currently only exchange between these two currencies. If you want to know more about exchange rates, ask me: |
| 152 | help exchange rates\nThanks for using our bank."; |
157 | help exchange rates\nThanks for using our bank."; |
| 153 | } elsif ($command eq "exchange rates") { |
158 | } elsif ($command eq "exchange rates") { |
| 154 | return "Here is a list of exchange rates:\n" |
159 | my @units = sort { $unit{$b} <=> $unit{$a} } keys %unit; |
| 155 | ."imperial => ".calc_exchange_rate(1, "imperial", "platina")." platina\n" |
160 | my $exchange_rates = "Here is a list of exchange rates:\n"; |
| 156 | ."imperial => ".calc_exchange_rate(1, "imperial", "gold")." gold\n" |
|
|
| 157 | ."imperial => ".calc_exchange_rate(1, "imperial", "silver")." silver\n" |
|
|
| 158 | |
161 | |
| 159 | ."platina => ".calc_exchange_rate(1, "platina", "gold")." gold\n" |
162 | for my $from_cur_nr (0 .. $#units) { |
| 160 | ."platina => ".calc_exchange_rate(1, "platina", "silver")." silver\n" |
163 | for my $to_cur_nr ($from_cur_nr+1 .. $#units) { |
| 161 | |
164 | $exchange_rates = $exchange_rates."One $units[$from_cur_nr] is ".calc_exchange_rate(1, $units[$from_cur_nr], $units[$to_cur_nr])." $units[$to_cur_nr]\n"; |
|
|
165 | } |
|
|
166 | } |
| 162 | ."gold => ".calc_exchange_rate(1, "gold", "silver")." silver\nThis may change a bit with the stock markets but don't expect it to be much."; |
167 | return $exchange_rates."This may change a bit with the stock markets but don't expect it to be much."; |
| 163 | } |
168 | } |
| 164 | } |
169 | } |
