NPC Behavior Construction Using Attribute-Driven Style Diversification

Solution Overview

Problem

The construction of non-player characters (NPCs) with diversified styles in games is inefficient due to the reliance on manual design of behavior trees, requiring significant time and energy, and thus hinders the efficient creation of diverse NPC interactions.

Innovation Solution

An automated method for constructing NPCs by determining a target object, adding disturbance to its attribute parameter, running it in a program to determine a behavior parameter, and adding it to the NPC set if its behavior style is unique, thereby diversifying NPC styles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual design of behavior trees is used for NPC construction, then NPC behavior logic can be precisely controlled, but construction time and energy consumption increase significantly

Engineering Contradiction:

ImproveNPC behavior logic precisionVSAvoidNPC construction time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The system enables self-service by allowing the NPC to automatically generate its own behavior tree based on its attributes and the game environment. The behavior tree is constructed autonomously without requiring manual design, thus reducing construction time while maintaining precise behavior logic through automated parameter-based generation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The invention changes the approach from manual behavior tree design to automated parameter-based generation. By using attribute parameters (e.g., personality traits, intelligence levels) as inputs, the system automatically generates behavior trees through parameter transformations, reducing the time and energy required for NPC construction while maintaining behavioral precision.

Inventive Principle:

Principle #35Parameter changes

2Manufacturing precision

If manual design of behavior trees is used for NPC construction, then behavior logic can be precisely controlled, but development energy consumption increases

Engineering Contradiction:

ImproveNPC behavior logic precisionVSAvoidDevelopment energy consumption

Core Design Contradiction:

Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

The system enables self-service by allowing the NPC to automatically generate its own behavior tree based on its attributes and the game environment. The behavior tree is constructed autonomously without requiring manual design, thus reducing construction time while maintaining precise behavior logic through automated parameter-based generation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The invention changes the approach from manual behavior tree design to automated parameter-based generation. By using attribute parameters (e.g., personality traits, intelligence levels) as inputs, the system automatically generates behavior trees through parameter transformations, reducing the time and energy required for NPC construction while maintaining behavioral precision.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If automated NPC construction is implemented, then construction efficiency is improved, but behavior style diversity may be reduced

Engineering Contradiction:

ImproveNPC construction efficiencyVSAvoidNPC behavior style diversity

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The system introduces multiple attribute parameters (personality, intelligence, experience levels) that can be varied to generate different behavior styles. By changing these parameters, the automated system produces diverse NPC behaviors, maintaining versatility while achieving high construction efficiency through automation.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The behavior tree generation process is dynamic, adapting to different input parameters and game situations. The system dynamically adjusts behavior tree structures based on NPC attributes and environmental context, ensuring that automated construction produces diverse and adaptable behavior styles rather than repetitive patterns.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250387712A1Virtual Object Construction Methods and Systems

Publication Date: 2025.12.25 TENCENT TECHNOLOGY (SHENZHEN) CO LTD

AI summary

Virtual character construction methods and systems are described herein. Based on attribute parameters capable of controlling behaviors of non-player characters in a target program and behavior parameters capable of representing behavior styles of the non-player characters in the target program, characters having diversified behavior styles can be efficiently constructed. By changing attribute parameters of generated non-player characters, a to-be-analyzed character who is possibly different from the generated non-player characters in behavior style can be obtained; actual behavior parameters can be obtained by actually operating the to-be-analyzed character in the target program based on the attribute parameters; based on the behavior parameters, the system determines whether a to-be-analyzed character is different from existing characters; and if the behavior style of the character is different from existing non-player characters, the character can be added as a new non-player character. Therefore, automatic non-player character generation and evaluation can be realized based on the attribute parameters and the behavior parameters, so that non-player characters having diversified behavior styles can be efficiently constructed.