The Evolution Of AI In Gaming
Exhibit|August 2024
The Crafting Perfect NPC
Bidisha Mitra
The Evolution Of AI In Gaming

In the ever-evolving realm of video games, the concept of NPCs, or non-playable characters, has transformed significantly. Once mere background elements, NPCs have now become integral to immersive storytelling and gameplay. This evolution is primarily driven by the integration of Artificial Intelligence (AI), a technology that has not only given NPCs a lifelike quality but also enhanced their intelligence, responsiveness, and believability. Let's explore the role of AI in gaming, particularly in shaping NPC behaviour, and examine some games that epitomise this technological advancement.

UNDERSTANDING AI IN NPCS

AI in NPCs is all about creating characters that can think, react, and interact with players and their environment in a way that mirrors real-life interactions. The key elements of AI-driven NPCs include:

PATHFINDING

This allows NPCs to navigate the game world efficiently, avoiding obstacles and finding the shortest routes. Algorithms like A* (A-star) and Dijkstra's algorithm are commonly used for this purpose.

DECISION MAKING

Utilising techniques such as Finite State Machines (FSMs), Behavior Trees, and, more recently, Machine Learning, NPCs can make decisions based on various stimuli and conditions. This allows them to exhibit complex behaviours like hiding, attacking, or seeking help.

EMOTION AND PERSONALITY

Modern games often incorporate AI that simulates emotions and personality traits, leading to more nuanced interactions. These NPCs can have moods that affect their behaviour and dialogue, adding depth to their character.

ADAPTIVE LEARNING

Some advanced NPCs can learn from the player's actions and adapt their strategies. This creates a more dynamic and challenging experience, as NPCs can change their tactics based on what the player has done previously.

This story is from the August 2024 edition of Exhibit.

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This story is from the August 2024 edition of Exhibit.

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