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11 | =cut |
11 | =cut |
12 | |
12 | |
13 | package NPC_Dialogue; |
13 | package NPC_Dialogue; |
14 | |
14 | |
15 | use strict; |
15 | use strict; |
16 | |
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17 | sub has_dialogue($) { |
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18 | my ($ob) = @_; |
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19 | |
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20 | $ob->msg =~ /^\@match /; |
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21 | } |
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22 | |
16 | |
23 | sub parse_message($) { |
17 | sub parse_message($) { |
24 | map [split /\n/, $_, 2], |
18 | map [split /\n/, $_, 2], |
25 | grep length, |
19 | grep length, |
26 | split /^\@match /m, |
20 | split /^\@match /m, |
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102 | |
96 | |
103 | =item $flag - A hashref that stores flags associated with the player and |
97 | =item $flag - A hashref that stores flags associated with the player and |
104 | can be seen by all NPCs (so better name your flags uniquely). This is |
98 | can be seen by all NPCs (so better name your flags uniquely). This is |
105 | useful for storing e.g. quest information. See C<@setflag> and C<@ifflag>. |
99 | useful for storing e.g. quest information. See C<@setflag> and C<@ifflag>. |
106 | |
100 | |
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101 | =item @find - see @find, below. |
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102 | |
107 | =back |
103 | =back |
108 | |
104 | |
109 | The environment is that standard "map scripting environment", which is |
105 | The environment is that standard "map scripting environment", which is |
110 | limited in the type of constructs allowed (no loops, for example). |
106 | limited in the type of constructs allowed (no loops, for example). |
111 | |
107 | |
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144 | Like C<@cond>, but proceed regardless of the outcome. |
140 | Like C<@cond>, but proceed regardless of the outcome. |
145 | |
141 | |
146 | =item @msg perl |
142 | =item @msg perl |
147 | |
143 | |
148 | Like C<@cond>, but the return value will be stringified and prepended to |
144 | Like C<@cond>, but the return value will be stringified and prepended to |
149 | the message. |
145 | the reply message. |
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146 | |
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147 | =item @check match expression |
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148 | |
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149 | Executes a match expression (see |
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150 | http://pod.tst.eu/http://cvs.schmorp.de/deliantra/server/lib/cf/match.pm) |
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151 | to see if it matches. |
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152 | |
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153 | C<self> is the npc object, C<object>, C<source> and C<originator> are the |
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154 | player communicating with the NPC. |
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155 | |
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156 | If the check fails, the match is skipped. |
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157 | |
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158 | =item @find match expression |
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159 | |
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160 | Like C<@check> in that it executes a match expression, but instead of |
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161 | failing, it gathers all objects matched into the C<@find> array variable. |
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162 | |
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163 | When you want to skip the match when no objects have been found, combine |
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164 | C<@find> with C<@cond>: |
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165 | |
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166 | @match see my spellbook |
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167 | @find type=SPELLBOOK in inv |
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168 | @cond @find |
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169 | It looks dirty. |
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170 | @match see my spellbook |
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171 | I can't see any, where do you have it? |
150 | |
172 | |
151 | =item @setstate state value |
173 | =item @setstate state value |
152 | |
174 | |
153 | Sets the named state C<state> to the given C<value>. State values are |
175 | Sets the named state C<state> to the given C<value>. State values are |
154 | associated with a specific player-NPC pair, so each NPC has its own state |
176 | associated with a specific player-NPC pair, so each NPC has its own state |
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207 | When the state argument is omitted the trigger is stateful and retains an |
229 | When the state argument is omitted the trigger is stateful and retains an |
208 | internal state per connected-id. There is a limitation to the use of this: The |
230 | internal state per connected-id. There is a limitation to the use of this: The |
209 | state won't be changed when the connection is triggered by other triggers. So |
231 | state won't be changed when the connection is triggered by other triggers. So |
210 | be careful when triggering the connection from other objects. |
232 | be careful when triggering the connection from other objects. |
211 | |
233 | |
212 | When a state argument is given it should be either 0 or 1. 1 will 'push' the connection |
234 | When a state argument is given it should be a positive integer. Any value |
213 | and 0 will 'release' the connection. This is useful for example when you want to |
235 | C<!= 0> will 'push' the connection (in general, you should specify C<1> |
214 | let a npc control a door. |
236 | for this) and C<0> will 'release' the connection. This is useful for |
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237 | example when you want to let an NPC control a door. |
215 | |
238 | |
216 | Trigger all objects with the given connected-id by 'releasing' the connection. |
239 | Trigger all objects with the given connected-id by 'releasing' the connection. |
217 | |
240 | |
218 | =item @playersound face-name |
241 | =item @playersound face-name |
219 | |
242 | |
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250 | my @replies; |
273 | my @replies; |
251 | my @match; # @match/@parse command results |
274 | my @match; # @match/@parse command results |
252 | |
275 | |
253 | my $state = $self->{npc}{$self->{ob}->name}{dialog_state} ||= {}; |
276 | my $state = $self->{npc}{$self->{ob}->name}{dialog_state} ||= {}; |
254 | my $flag = $self->{ob}{dialog_flag} ||= {}; |
277 | my $flag = $self->{ob}{dialog_flag} ||= {}; |
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278 | |
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279 | my @find; |
255 | |
280 | |
256 | my %vars = ( |
281 | my %vars = ( |
257 | who => $self->{ob}, |
282 | who => $self->{ob}, |
258 | npc => $self->{npc}, |
283 | npc => $self->{npc}, |
259 | state => $state, |
284 | state => $state, |
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288 | |
313 | |
289 | } elsif ($cmd eq "eval") { |
314 | } elsif ($cmd eq "eval") { |
290 | cf::safe_eval $args, %vars; |
315 | cf::safe_eval $args, %vars; |
291 | warn "\@eval evaluation error: $@\n" if $@; |
316 | warn "\@eval evaluation error: $@\n" if $@; |
292 | |
317 | |
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318 | } elsif ($cmd eq "check") { |
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319 | eval { |
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320 | cf::match::match $args, $self->{ob}, $self->{npc}, $self->{ob} |
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321 | or next topic; |
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322 | }; |
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323 | warn "\@check evaluation error: $@\n" if $@; |
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324 | |
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325 | } elsif ($cmd eq "find") { |
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326 | @find = eval { |
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327 | cf::match::match $args, $self->{ob}, $self->{npc}, $self->{ob} |
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328 | }; |
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329 | warn "\@find evaluation error: $@\n" if $@; |
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330 | |
293 | } elsif ($cmd eq "msg") { |
331 | } elsif ($cmd eq "msg") { |
294 | push @replies, [$self->{npc}, (scalar cf::safe_eval $args, %vars)]; |
332 | push @replies, [$self->{npc}, (scalar cf::safe_eval $args, %vars)]; |
295 | |
333 | |
296 | } elsif ($cmd eq "setflag") { |
334 | } elsif ($cmd eq "setflag") { |
297 | my ($name, $value) = split /\s+/, $args, 2; |
335 | my ($name, $value) = split /\s+/, $args, 2; |
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313 | $state->{$name} eq $value |
351 | $state->{$name} eq $value |
314 | or next topic; |
352 | or next topic; |
315 | |
353 | |
316 | } elsif ($cmd eq "trigger") { |
354 | } elsif ($cmd eq "trigger") { |
317 | my ($con, $state) = split /\s+/, $args, 2; |
355 | my ($con, $state) = split /\s+/, $args, 2; |
318 | $con = $con * 1; |
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319 | |
356 | |
320 | if (defined $state) { |
357 | if (defined $state) { |
321 | $self->{npc}->map->trigger ($args, $state); |
358 | $self->{npc}->map->trigger ($con, $state, $self->{npc}, $self->{ob}); |
322 | } else { |
359 | } else { |
323 | my $rvalue = \$self->{npc}{dialog_trigger}{$con}; |
360 | my $rvalue = \$self->{npc}{dialog_trigger}{$con+0}; |
324 | $self->{npc}->map->trigger ($con, $$rvalue = !$$rvalue); |
361 | $self->{npc}->map->trigger ($con, $$rvalue = !$$rvalue, $self->{npc}, $self->{ob}); |
325 | } |
362 | } |
326 | |
363 | |
327 | } elsif ($cmd eq "addtopic") { |
364 | } elsif ($cmd eq "addtopic") { |
328 | push @kw, split /\|/, $args; |
365 | push @kw, split /\|/, $args; |
329 | $self->{add_topic}->(split /\s*\|\s*/, $args) if $self->{add_topic}; |
366 | $self->{add_topic}->(split /\s*\|\s*/, $args) if $self->{add_topic}; |
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337 | } |
374 | } |
338 | } |
375 | } |
339 | |
376 | |
340 | delete $self->{npc}{$self->{ob}->name}{dialog_state} unless %$state; |
377 | delete $self->{npc}{$self->{ob}->name}{dialog_state} unless %$state; |
341 | delete $self->{ob}{dialog_flag} unless %$flag; |
378 | delete $self->{ob}{dialog_flag} unless %$flag; |
342 | |
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343 | # combine lines into paragraphs |
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344 | $reply =~ s/(?<=\S)\n(?=\w)/ /g; |
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345 | $reply =~ s/\n\n/\n/g; |
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346 | |
379 | |
347 | # ignores flags and npc from replies |
380 | # ignores flags and npc from replies |
348 | $reply = join "\n", (map $_->[1], @replies), $reply; |
381 | $reply = join "\n", (map $_->[1], @replies), $reply; |
349 | |
382 | |
350 | # now mark up all matching keywords |
383 | # now mark up all matching keywords |
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355 | last; |
388 | last; |
356 | } |
389 | } |
357 | } |
390 | } |
358 | } |
391 | } |
359 | |
392 | |
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393 | $self->{npc}->use_trigger ($self->{ob}) |
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394 | if $self->{npc}->type == cf::MAGIC_EAR; |
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395 | |
360 | return wantarray ? ($reply, @kw) : $reply; |
396 | return wantarray ? ($reply, @kw) : $reply; |
361 | } |
397 | } |
362 | } |
398 | } |
363 | } |
399 | } |
364 | |
400 | |