Help With Artificial Intelligence (AI)

Questions & Answers
1

I have no idea where to start with AI, just wondering if any of you have a source or a forum in which will help me, or give me example scripts of AI.

The AI in my game is basically a cube, that follows 3 waypoints set in a triangle and when I set close to the cube, it 'detects me' and begins to follow me whilst activating a 'kill player' function (which doesn't do anything at the moment).

But, for example how would I tell my AI to avoid obstacles whilst following me ... lets just say that my cube has 'zombie' features:

It moves aimlessly (check).

It sees player, and follows (check).

When zombie is close enough, it will harm player (check, well just activated a kill function).

Zombie to avoid obstacles (to do).

Another thing is that my AI gets confused when I am a higher level than my zombie (cube), it doesn't use stairs. It just gets as close to me as possible on its current ground level. This is obversely the case as I need to write some AI code to tell it to go up stairs when player is on higher level.

Any help, suggestions, or whatever

Sure would appreciate it.

2

You could take a look at unitySteer + Behave. Both are available on the new asset store for free.

3

To avoid obstacles you would have to use pathfinding.

There are three projects on the web for that (that I know of):

Path - A good pathfinding library for use with navmeshes, I don't think it works above 2.6 though.

The A* Pathfinding Project - An advanced pathfinding project which would probably work for your idea, it has some small issues with U3 though, an update will be released in a few days.

Waypoint Master - A quite simple pathfinding library, but might work for you, I don't know if it works with U3, though.

Good Luck!