Response System: Difference between revisions
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==Introduction== | ==Introduction== | ||
Response System controls what a NPC talks on a certain situation. e.g. It makes Alyx say "Excuse me" when the player pushes her, Citizens greet when they see the player, Vortigaunts tell stories on USE button, etc. | |||
<code>/scripts/talker/response_rules.txt</code> is the base script file for the global Response System that controls Expressive NPCs. | |||
<code> | Also an [[env_speaker]] entity can specify its own Context rule script. See <code>scripts/talker/terminal_pa.txt</code> for terminal announcement example. | ||
These scripts contain [[Criteria|criterion]]/[[Rules|rule]]/[[Responses|response]] definitions. The Response system checks each rule against the set, give it a numeric score based on the rule's set of criteria. Then the system picks one rule with the highest score, dispatch a response that the rule points. | |||
The Response system checks each rule against the set, give it a numeric score based on the rule's set of criteria. Then the system picks one rule with the highest score, dispatch a response that the rule points. | |||
*[[Concepts]] | *[[Concepts]] | ||
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*[[Rules]] | *[[Rules]] | ||
*[[Reponses]] | *[[Reponses]] | ||
==Add your new custom NPC to the Response System== | ==Add your new custom NPC to the Response System== | ||
Revision as of 08:54, 14 August 2005
Introduction
Response System controls what a NPC talks on a certain situation. e.g. It makes Alyx say "Excuse me" when the player pushes her, Citizens greet when they see the player, Vortigaunts tell stories on USE button, etc.
/scripts/talker/response_rules.txt is the base script file for the global Response System that controls Expressive NPCs.
Also an env_speaker entity can specify its own Context rule script. See scripts/talker/terminal_pa.txt for terminal announcement example.
These scripts contain criterion/rule/response definitions. The Response system checks each rule against the set, give it a numeric score based on the rule's set of criteria. Then the system picks one rule with the highest score, dispatch a response that the rule points.
Add your new custom NPC to the Response System
- Make your NPC derived from NPC_talker
- Write a new rule script for your NPC
- See npc_xxx.txt for examples
- Include the new script in
/scripts/talker/response_rules.txt