Jan. 23rd, 2024 Research & Tool

Since most of our team member are more familiar with Unity, we decided to use Unity as our engine to test characters. For the asset part, I've found two open-source tool assets which could use AI or Machine Learning control NPCs.

GitHub - Unity-Technologies/ml-agents: The Unity Machine Learning Agents Toolkit (ML-Agents) is an open-source project that enables games and simulations to serve as environments for training intelligent agents using deep reinforcement learning and imitation learning.

This is the first asset I've found might use in our project, and it uses Reinforcement Learning to train the character. The basic logic of NPC training is that Observation-Action-Reward signals. But I have no experience on machine learning and it's a ten week project, it is hard to start from 0.

So we decided to use the second asset as the tool for our project, Convai.

https://www.convai.com/

It could control NPC's behavior and dialog through voice or text.