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Comparing deliantra/maps/perl/bank.ext (file contents):
Revision 1.3 by pippijn, Sun May 21 22:00:19 2006 UTC vs.
Revision 1.7 by pippijn, Mon May 22 18:52:57 2006 UTC

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()
15# - Add a DM command to view any user's balance.
16 16
17# The units are being used in each sub so they are declared globally. 17# The units are being used in each sub so they are declared globally.
18my %unit = ( 18my %unit = (
19 silver => 1, 19 silver => 1,
20 gold => 10, 20 gold => 10,
21 platina => 50, 21 platina => 50,
22 imperial => 10000, 22 imperial => 10000,
23); 23);
24 24
25# Subroutine just to calculate exchange rates, I purposefully left in the 25# Subroutine just to calculate exchange rates.
26# exchange rates for imperial => imperial, platina => platina, etc.
27sub calc_exchange_rate { 26sub calc_exchange_rate {
28 my ($value, $from_cur, $to_cur) = @_; 27 my ($value, $from_cur, $to_cur) = @_;
29 28
30 if ($unit{$from_cur} and $unit{$to_cur}) {
31 return $value * $unit{$from_cur} / $unit{$to_cur}; 29 $value * $unit{$from_cur} / $unit{$to_cur}
32 }
33} 30}
34 31
35# Calculates and returns how much money someone has starting with the 32# Calculates and returns how much money someone has starting with the
36# highest value currency going down. Think of it like having the date 33# highest value currency going down. Think of it like having the date
37# and time in the format of 2006-05-19 03:21:31 UTC instead of 1148001691 34# and time in the format of 2006-05-19 03:21:31 UTC instead of 1148001691
38# seconds since 1970-01-01 00:00:00 UTC. 35# seconds since 1970-01-01 00:00:00 UTC.
39sub balance { 36sub balance {
40 my ($who) = @_; 37 my ($who) = @_;
41 my $balance = $who->{bank_balance}; 38 my $balance = $who->{bank_balance};
42 39
43 if (!$balance or int($balance) == 0) {
44 return "Sorry, you have no balance."; 40 return "Sorry, you have no balance."
45 } else { 41 unless $balance;
46 42
47 my $imperials = calc_exchange_rate($balance, "silver", "imperial"); 43 my $imperials = calc_exchange_rate $balance, "silver", "imperial";
48 my $platinum = calc_exchange_rate($imperials - int ($imperials), "imperial", "platina"); 44 my $platinum = calc_exchange_rate $imperials - (int $imperials), "imperial", "platina";
49 my $gold = calc_exchange_rate($platinum - int ($platinum), "platina", "gold"); 45 my $gold = calc_exchange_rate $platinum - (int $platinum), "platina", "gold";
50 my $silver = calc_exchange_rate($gold - int ($gold), "gold", "silver"); 46 my $silver = calc_exchange_rate $gold - (int $gold), "gold", "silver";
51 47
52 return "You have ".int($imperials)." imperials, ".int($platinum)." platinum, ".int($gold)." gold and about ".int($silver)." silver coins."; 48 return "You have "
53 } 49 . (int $imperials) . " imperials, "
50 . (int $platinum) . " platinum, "
51 . (int $gold) . " gold and about "
52 . (int $silver) ." silver coins.";
54} 53}
55 54
56sub transaction { 55sub transaction {
57 my ($who, $action, $amount, $currency) = @_; 56 my ($who, $action, $amount, $currency) = @_;
58 my $pay = $amount * $unit{$currency}; 57 my $pay = $amount * $unit{$currency};
58
59 return "We don't trade in that currency."
60 unless exists $unit{$currency};
61
62 return "You can not $action fractions."
63 unless $amount =~ /^\d+$/;
59 64
60 # First check for possible overflow and user stupidity 65 # First check for possible overflow and user stupidity
61 if ($amount > 10000) { 66 if ($amount > 10000) {
62 return "Sorry, we do not handle more than 10000 units for one ".$action."."; 67 return "Sorry, we do not handle more than 10000 units for one ".$action.".";
63 } elsif ($amount == 0) { 68 } elsif ($amount == 0) {
64 return "You can not ".$action." nothing."; 69 return "You can not ".$action." nothing.";
65 } elsif ($amount < 0) { 70 } elsif ($amount < 0) {
66 return "You can not ".$action." negative values."; 71 return "You can not ".$action." negative values.";
67 } else { 72 }
73
68 # Here we handle the transactions 74 # Here we handle the transactions
69 if ($action eq "deposit") { 75 if ($action eq "deposit") {
70 if ($who->pay_amount ($pay)) { 76 if ($who->pay_amount ($pay)) {
71 $who->{bank_balance} += $pay; 77 $who->{bank_balance} += $pay;
72 return "$amount $currency received."; 78 return "$amount $currency received.";
79 } else {
80 return "You don't have enough money with you.";
81 }
82 } elsif ($action eq "withdraw") {
83 if ($who->{bank_balance} - $pay > 0) {
84 $who->{bank_balance} -= $pay;
85 if ($currency eq "imperial") {
86 my $money = cf::object::new "imperial";
87 $money->set_property (1, 24, $amount);
88 $money->insert_in_ob ($who);
73 } else { 89 } else {
74 return "You don't have enough money with you."; 90 my $money = cf::object::new $currency . "coin";
91 $money->set_property (1, 24, $amount);
92 $money->insert_in_ob ($who);
75 } 93 }
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"; 94 return "Withdrew $amount $currency";
89 }
90 } 95 }
91 } 96 }
92} 97}
93 98
94sub on_say { 99sub on_say {
95 my ($event, $ob, $who, $msg) = @_; 100 my ($event, $ob, $who, $msg) = @_;
96 my ($cmd, $arguments) = split /\s+/, $msg, 2; 101 my ($cmd, $arguments) = split /\s+/, $msg, 2;
97 my ($amount, $currency) = split /\s+/, $arguments, 2; 102 my ($amount, $currency) = split /\s+/, $arguments, 2;
103 my $name = $ob->name;
98 my $service_charge = 5; 104 my $service_charge = 5;
99 my @units = sort keys %unit; 105 my @units = sort keys %unit;
100 my $units = join ", ", @units; 106 my $units = join ", ", @units;
101 my $fees = - ($service_charge / 100) + 1; 107 my $fees = - ($service_charge / 100) + 1;
102 108
103 if ($cmd eq "balance") { 109 if ($cmd eq "balance") {
104 $who->message ($ob->name." says: ".balance ($who), cf::NDI_WHITE); 110 $who->message ($ob->name." says: ".balance ($who), cf::NDI_WHITE);
105 }
106 111
107 elsif ($cmd eq "deposit" and $currency) { 112 } elsif ($cmd eq "deposit" and $currency) {
108 $who->message ($ob->name." says: ".transaction($who, "deposit", $amount, $currency), cf::NDI_WHITE); 113 $who->message ("$name says: " . (transaction $who, "deposit", $amount, $currency), cf::NDI_WHITE);
109 $who->message ($ob->name." says: ".balance ($who), cf::NDI_WHITE); 114 $who->message ("$name says: " . (balance $who), cf::NDI_WHITE);
115
110 } elsif ($cmd eq "deposit" and $amount and $currency eq "") { 116 } elsif ($cmd eq "deposit" and $amount and $currency eq "") {
111 $who->message ($ob->name." says: Deposit $amount of what: ".$units.".", cf::NDI_WHITE); 117 $who->message ("$name says: Deposit $amount of what: $units", cf::NDI_WHITE);
118
112 } elsif ($cmd eq "deposit" and $amount eq "" and $currency eq "") { 119 } elsif ($cmd eq "deposit" and $amount eq "" and $currency eq "") {
113 $who->message ($ob->name." says: How much do you want to deposit?", cf::NDI_WHITE); 120 $who->message ("$name says: How much do you want to deposit?", cf::NDI_WHITE);
114 }
115 121
116 elsif ($cmd eq "withdraw" and $currency) { 122 } elsif ($cmd eq "withdraw" and $currency) {
117 $who->message ($ob->name." says: ".transaction($who, "withdraw", $amount, $currency), cf::NDI_WHITE); 123 $who->message ("$name says: " . (transaction $who, "withdraw", $amount, $currency), cf::NDI_WHITE);
118 $who->message ($ob->name." says: ".balance ($who), cf::NDI_WHITE); 124 $who->message ("$name says: " . (balance $who), cf::NDI_WHITE);
125
119 } elsif ($cmd eq "withdraw" and $amount and $currency eq "") { 126 } elsif ($cmd eq "withdraw" and $amount and $currency eq "") {
120 $who->message ($ob->name." says: Withdraw $amount of what: ".$units.".", cf::NDI_WHITE); 127 $who->message ("$name says: Withdraw $amount of what: $units", cf::NDI_WHITE);
128
121 } elsif ($cmd eq "withdraw" and $amount eq "" and $currency eq "") { 129 } elsif ($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); 130 $who->message ("$name says: How much do you want to withdraw?", cf::NDI_WHITE);
123 }
124 131
125 elsif ($cmd eq "help" || "yes") { 132 } elsif ($cmd eq "help" or $cmd eq "yes" and $arguments eq "") {
126 $who->message ($ob->name." says: ".help($arguments), cf::NDI_WHITE); 133 $who->message ("$name says: " . (help $arguments), cf::NDI_WHITE);
134
135 } elsif ($cmd eq "help" or $cmd eq "yes" and $arguments ne "") {
136 $who->message ("$name says: " . (help), cf::NDI_WHITE);
137
138 } else {
139 $who->message ("$name says: Do you need help?", cf::NDI_WHITE);
127 } 140 }
128} 141}
129 142
130sub help { 143sub help {
131 my ($command) = @_; 144 my ($command) = @_;
149 return "We exchange between imperial notes and platinum coins at a very low price. To change from platinum to imperials, say: 162 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: 163 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: 164 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."; 165 help exchange rates\nThanks for using our bank.";
153 } elsif ($command eq "exchange rates") { 166 } elsif ($command eq "exchange rates") {
154 return "Here is a list of exchange rates:\n" 167 my @units = sort { $unit{$b} <=> $unit{$a} } keys %unit;
155 ."imperial => ".calc_exchange_rate(1, "imperial", "platina")." platina\n" 168 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"
158 169
159 ."platina => ".calc_exchange_rate(1, "platina", "gold")." gold\n" 170 for my $from_cur_nr (0 .. $#units) {
160 ."platina => ".calc_exchange_rate(1, "platina", "silver")." silver\n" 171 for my $to_cur_nr ($from_cur_nr+1 .. $#units) {
161 172 $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";
173 }
174 }
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."; 175 return $exchange_rates."This may change a bit with the stock markets but don't expect it to be much.";
163 } 176 }
164} 177}

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