| 1 | #! perl |
1 | #! perl |
| 2 | |
2 | |
| 3 | # this implements the mapscript connectable |
3 | # |
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4 | # This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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5 | # |
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6 | # Copyright (©) 2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
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7 | # |
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8 | # Deliantra is free software: you can redistribute it and/or modify it under |
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9 | # the terms of the Affero GNU General Public License as published by the |
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10 | # Free Software Foundation, either version 3 of the License, or (at your |
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11 | # option) any later version. |
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12 | # |
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13 | # This program is distributed in the hope that it will be useful, |
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14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | # GNU General Public License for more details. |
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17 | # |
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18 | # You should have received a copy of the Affero GNU General Public License |
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19 | # and the GNU General Public License along with this program. If not, see |
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20 | # <http://www.gnu.org/licenses/>. |
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21 | # |
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22 | # The authors can be reached via e-mail to <support@deliantra.net> |
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23 | # |
| 4 | |
24 | |
| 5 | package safe::mapscript; |
25 | =head1 NAME |
| 6 | |
26 | |
| 7 | use strict qw(subs vars); |
27 | cf::mapscript |
| 8 | |
28 | |
| 9 | our ($self, $activator, $state); |
29 | =head1 DESCRIPTION |
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30 | |
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31 | This module implements the mapscript object. |
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32 | |
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33 | Map scripts are perl snippets that get executed whenever any connected |
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34 | element is triggered (e.g. a check inv, a lever etc.) |
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35 | |
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36 | =head1 ENVIRONMENT |
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37 | |
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38 | The map scripts are compiled and executed into a namespace with the |
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39 | following symbols available: |
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40 | |
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41 | =over 4 |
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42 | |
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43 | =cut |
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44 | |
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45 | package cf::mapscript::eval; |
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46 | |
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47 | use common::sense; |
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48 | |
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49 | =item $self |
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50 | |
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51 | The mapscript object itself. |
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52 | |
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53 | =item $state |
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54 | |
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55 | The state value (0 means release, <>0 means push/trigger/enable) that |
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56 | triggered the map script. |
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57 | |
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58 | =item $activator |
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59 | |
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60 | The object that was triggered (the lever, check inv element, npc etc.). |
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61 | |
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62 | =item $originator |
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63 | |
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64 | The object that triggered the activator, usually (but not always) the |
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65 | player who stepped on a check inv, pulled a lever etc. Can be C<undef>. |
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66 | |
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67 | =cut |
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68 | |
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69 | use vars qw($self $state $activator $originator); |
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70 | |
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71 | =item @obs = find $id_or_object |
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72 | |
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73 | Finds all objects with the given I<connected> C<$id>. If an object |
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74 | reference is passed, it will be returned unchanged. |
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75 | |
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76 | =cut |
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77 | |
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78 | sub find($) { |
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79 | ref $_[0] ? $_[0] |
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80 | : $self->map->find_link ($_[0]) |
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81 | } |
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82 | |
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83 | =item trigger $id_or_object[, $state] |
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84 | |
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85 | Triggers the linked chain with the given I<connected> id, or the connected |
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86 | chain associated with the given object (if an objetc reference is passed), |
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87 | and passes the given state (or C<1>, if missing) to it. |
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88 | |
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89 | =cut |
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90 | |
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91 | sub trigger($;$) { |
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92 | $self->map->trigger ($_[0], $#_ ? $_[1] : 1, $self); |
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93 | } |
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94 | |
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95 | =item timer $id_or_object, $seconds |
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96 | |
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97 | Starts the timer on the given mapscript object (usually, $id_or_object is |
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98 | C<$self>). When the timer expires on the mapscript object, it will trigger |
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99 | the script with C<$activator == $self> and C<$originator == undef>. |
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100 | |
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101 | =cut |
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102 | |
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103 | sub timer($$) { |
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104 | my $ob = (&find)[0]; |
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105 | $ob->speed_left (-$_[1] / cf::TICK); |
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106 | $ob->set_speed (1); |
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107 | } |
| 10 | |
108 | |
| 11 | package cf::mapscript; |
109 | package cf::mapscript; |
| 12 | |
110 | |
| 13 | use strict qw(subs vars); |
111 | use common::sense; |
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112 | |
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113 | *{"main::safe::cf::mapscript::eval::"} = \%{"main::cf::mapscript::eval::"}; |
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114 | |
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115 | our %CACHE; |
| 14 | |
116 | |
| 15 | sub activate($$$) { |
117 | sub activate($$$) { |
| 16 | ($self, $activator, $state) = @_; |
118 | package cf::mapscript::eval; |
| 17 | |
119 | |
| 18 | warn "$self->{msg} $self->{on_activate}\n";#d# |
120 | ($self, $state, $activator, $originator) = @_; |
| 19 | |
121 | |
| 20 | ( |
122 | ( |
| 21 | $self->{on_activate} ||= cf::safe_eval |
123 | $CACHE{$self->msg} ||= cf::safe_eval |
| 22 | "package mapscript; sub {\n" |
124 | "package cf::mapscript::eval; sub {\n" |
| 23 | . "#line 1 '" . ($self->debug_desc) . "'\n" |
125 | . "#line 1 '" . ($self->debug_desc) . "'\n" |
| 24 | . $self->msg |
126 | . $self->msg |
| 25 | . "\n}" |
127 | . "\n}" |
| 26 | or sub { } |
128 | or sub { } |
| 27 | )->(); |
129 | )->(); |
| 28 | } |
130 | } |
| 29 | |
131 | |
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132 | =back |
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133 | |
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134 | =head1 EXAMPLE |
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135 | |
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136 | Have a look at F<scorn/anthonty/portgate.map> for a nontrivial example. |
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137 | |
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138 | =cut |
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139 | |
| 30 | 1; |
140 | 1; |
