| … | |
… | |
| 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 |
|
|
14 | # - Implement exchange() |
| 16 | |
15 | |
| 17 | # The units are being used in each sub so they are declared globally. |
16 | # The units are being used in each sub so they are declared globally. |
| 18 | my %unit = ( |
17 | my %unit = ( |
| 19 | silver => 1, |
18 | silver => 1, |
| 20 | gold => 10, |
19 | gold => 10, |
| 21 | platina => 50, |
20 | platina => 50, |
| 22 | imperial => 10000, |
21 | imperial => 10000, |
| 23 | ); |
22 | ); |
| 24 | |
23 | |
| 25 | # Subroutine just to calculate exchange rates, I purposefully left in the |
24 | # Subroutine just to calculate exchange rates. |
| 26 | # exchange rates for imperial => imperial, platina => platina, etc. |
|
|
| 27 | sub calc_exchange_rate { |
25 | sub calc_exchange_rate { |
| 28 | my ($value, $from_cur, $to_cur) = @_; |
26 | my ($value, $from_cur, $to_cur) = @_; |
| 29 | |
27 | |
| 30 | if ($unit{$from_cur} and $unit{$to_cur}) { |
28 | if ($unit{$from_cur} and $unit{$to_cur}) { |
| 31 | return $value * $unit{$from_cur} / $unit{$to_cur}; |
29 | return $value * $unit{$from_cur} / $unit{$to_cur}; |
| … | |
… | |
| 55 | |
53 | |
| 56 | sub transaction { |
54 | sub transaction { |
| 57 | my ($who, $action, $amount, $currency) = @_; |
55 | my ($who, $action, $amount, $currency) = @_; |
| 58 | my $pay = $amount * $unit{$currency}; |
56 | my $pay = $amount * $unit{$currency}; |
| 59 | |
57 | |
|
|
58 | if (!$unit{$currency}) { |
|
|
59 | return "We don't trade in that currency."; |
|
|
60 | } |
|
|
61 | |
|
|
62 | if ($amount !=~ /\d+/) { |
|
|
63 | return "You can not $action fractions."; |
|
|
64 | } |
|
|
65 | |
| 60 | # First check for possible overflow and user stupidity |
66 | # First check for possible overflow and user stupidity |
| 61 | if ($amount > 10000) { |
67 | if ($amount > 10000) { |
| 62 | return "Sorry, we do not handle more than 10000 units for one ".$action."."; |
68 | return "Sorry, we do not handle more than 10000 units for one ".$action."."; |
| 63 | } elsif ($amount == 0) { |
69 | } elsif ($amount == 0) { |
| 64 | return "You can not ".$action." nothing."; |
70 | return "You can not ".$action." nothing."; |
| 65 | } elsif ($amount < 0) { |
71 | } elsif ($amount < 0) { |
| 66 | return "You can not ".$action." negative values."; |
72 | return "You can not ".$action." negative values."; |
| 67 | } else { |
73 | } |
|
|
74 | |
| 68 | # Here we handle the transactions |
75 | # Here we handle the transactions |
| 69 | if ($action eq "deposit") { |
76 | if ($action eq "deposit") { |
| 70 | if ($who->pay_amount ($pay)) { |
77 | if ($who->pay_amount ($pay)) { |
| 71 | $who->{bank_balance} += $pay; |
78 | $who->{bank_balance} += $pay; |
| 72 | return "$amount $currency received."; |
79 | return "$amount $currency received."; |
|
|
80 | } else { |
|
|
81 | return "You don't have enough money with you."; |
|
|
82 | } |
|
|
83 | } elsif ($action eq "withdraw") { |
|
|
84 | if ($who->{bank_balance} - $pay > 0) { |
|
|
85 | $who->{bank_balance} -= $pay; |
|
|
86 | if ($currency eq "imperial") { |
|
|
87 | my $money = cf::object::new ("imperial"); |
|
|
88 | $money->set_property (1, 24, $amount); |
|
|
89 | $money->insert_in_ob ($who); |
| 73 | } else { |
90 | } else { |
| 74 | return "You don't have enough money with you."; |
91 | my $money = cf::object::new ($currency."coin"); |
|
|
92 | $money->set_property (1, 24, $amount); |
|
|
93 | $money->insert_in_ob ($who); |
| 75 | } |
94 | } |
| 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"; |
95 | return "Withdrew $amount $currency"; |
| 89 | } |
|
|
| 90 | } |
96 | } |
| 91 | } |
97 | } |
| 92 | } |
98 | } |
| 93 | |
99 | |
| 94 | sub on_say { |
100 | sub on_say { |
| … | |
… | |
| 120 | $who->message ($ob->name." says: Withdraw $amount of what: ".$units.".", cf::NDI_WHITE); |
126 | $who->message ($ob->name." says: Withdraw $amount of what: ".$units.".", cf::NDI_WHITE); |
| 121 | } elsif ($cmd eq "withdraw" and $amount eq "" and $currency eq "") { |
127 | } elsif ($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); |
128 | $who->message ($ob->name." says: How much do you want to withdraw?", cf::NDI_WHITE); |
| 123 | } |
129 | } |
| 124 | |
130 | |
| 125 | elsif ($cmd eq "help" || "yes") { |
131 | elsif ($cmd eq "help" or $cmd eq "yes") { |
| 126 | $who->message ($ob->name." says: ".help($arguments), cf::NDI_WHITE); |
132 | $who->message ($ob->name." says: ".help($arguments), cf::NDI_WHITE); |
|
|
133 | } |
|
|
134 | |
|
|
135 | else { |
|
|
136 | $who->message ($ob->name." says: Do you need help?", cf::NDI_WHITE); |
| 127 | } |
137 | } |
| 128 | } |
138 | } |
| 129 | |
139 | |
| 130 | sub help { |
140 | sub help { |
| 131 | my ($command) = @_; |
141 | my ($command) = @_; |
| … | |
… | |
| 149 | return "We exchange between imperial notes and platinum coins at a very low price. To change from platinum to imperials, say: |
159 | 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: |
160 | 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: |
161 | 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."; |
162 | help exchange rates\nThanks for using our bank."; |
| 153 | } elsif ($command eq "exchange rates") { |
163 | } elsif ($command eq "exchange rates") { |
| 154 | return "Here is a list of exchange rates:\n" |
164 | my @units = sort { $unit{$b} <=> $unit{$a} } keys %unit; |
| 155 | ."imperial => ".calc_exchange_rate(1, "imperial", "platina")." platina\n" |
165 | 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 | |
166 | |
| 159 | ."platina => ".calc_exchange_rate(1, "platina", "gold")." gold\n" |
167 | for my $from_cur_nr (0 .. $#units) { |
| 160 | ."platina => ".calc_exchange_rate(1, "platina", "silver")." silver\n" |
168 | for my $to_cur_nr ($from_cur_nr+1 .. $#units) { |
| 161 | |
169 | $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"; |
|
|
170 | } |
|
|
171 | } |
| 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."; |
172 | return $exchange_rates."This may change a bit with the stock markets but don't expect it to be much."; |
| 163 | } |
173 | } |
| 164 | } |
174 | } |
