{"id":92,"date":"2026-04-04T11:01:22","date_gmt":"2026-04-04T09:01:22","guid":{"rendered":"https:\/\/www.noocturnalgamesstudio.com\/blog\/2026\/04\/04\/dynamic-and-contextual-ai-in-unity-how-your-npc-will-prioritize-fleeing-chasing-or-investigating-sounds-without-a-giant-if-else\/"},"modified":"2026-04-04T11:01:22","modified_gmt":"2026-04-04T09:01:22","slug":"dynamic-and-contextual-ai-in-unity-how-your-npc-will-prioritize-fleeing-chasing-or-investigating-sounds-without-a-giant-if-else","status":"publish","type":"post","link":"https:\/\/www.noocturnalgamesstudio.com\/blog\/2026\/04\/04\/dynamic-and-contextual-ai-in-unity-how-your-npc-will-prioritize-fleeing-chasing-or-investigating-sounds-without-a-giant-if-else\/","title":{"rendered":"Dynamic and Contextual AI in Unity: How your NPC will prioritize Fleeing, Chasing, or Investigating Sounds (without a giant IF\/ELSE)"},"content":{"rendered":"
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If you are an indie developer, you know this feeling: you open your AI script and find a 500-line monster full of nested conditions. ‘If the player is close, but my health is low, run; but if I hear a sound and see no one, investigate; but if an ally screams…’. <\/p>\n

The result is fragile code, hard to debug, and NPCs that behave erratically. The solution? Stop programming states and start composing behaviors. Today we will break down how the event-driven architecture of the Modular AI Behaviour Kit<\/strong> transforms this chaos into a professional and scalable system. <\/p>\n

Ending the Spaghetti: Event-Driven Architecture <\/h3>\n

Most Unity tutorials teach you to use the Update() method to check distances every frame. It is inefficient. Our kit utilizes UnityEvents<\/strong>. ‘Sensory’ components (like the PlayerDetector) emit events only when something actually changes. <\/p>\n

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Practical Example: <\/h4>\n

The SimpleChase<\/strong> component does not search for the player. It subscribes to the OnTargetDetected<\/em> event from the PlayerDetector<\/strong>. The moment the visual raycast confirms line of sight, the chase begins instantly. No unnecessary checks every frame. <\/p>\n<\/p><\/div>\n

Smart Prioritization: The Coordinator Brain <\/h3>\n

How does an NPC decide what to do when two things happen at once? This is where the AIController<\/strong> comes in. This script acts as an orchestra conductor managing a Finite State Machine (FSM) based on Addon composition. <\/p>\n

The decision hierarchy is built into the controller logic: <\/p>\n