astro2049/stealthai

Ferŷnier - AI Drones

AI Drones

Drones have vision and hearing.

Vision

Drone sight has a distance and an angle, implemented by ray cast.

States

Using a state machine to switch between behaviors of AI drones:

1. Idle (initial state)
2. Patrol - Pick a random patrol location and auto-path to it
3. Look Around - Stay put and look around
4. Alert - Transition state to Chase, when the player can be seen. Duration - 1s
5. Investigate - Go to where the player is last seen at
6. Chase - Chase the player
7. Deactivated - Shut down & Fall to the ground
8. Stunned - Power down for a few seconds and resume to Look Around. Duration - 5s

Map Set Up

• Player
  • Tag - Player
• Map plane
  • Navigation Static
• Walls
  • Navigation Static
• Drone
  • Tag - Drone

*And, bake the Nav Mesh.

References

• Unity User Manual

  https://docs.unity3d.com/2022.1/Documentation/Manual/UnityManual.html

• State Machine

  https://www.youtube.com/watch?v=nnrOhb5UdRc

• AI Sight

  https://www.youtube.com/watch?v=j1-OyLo77ss

• Field of View Effect

  https://www.youtube.com/watch?v=CSeUMTaNFYk

• Chase

  https://www.youtube.com/watch?v=wp8m6xyIPtE