We are rolling with particle effects still as hand animating everything is going to take a very long time and has the added problem of always looking exactly the same, the chaos of a particle system is much more natural. I’ll make sure to include a lot more pictures tooĬheeky yawn from our hero, not as impressed as I am with the new effects! This value decays whenever the player isn’t in it sight, and the tree structure means the AI gracefully drops back down to the previous behaviour.Ĭoming Soon! Have a bunch of non-Sandfox tasks to get rid of, but I’ll make sure to post up how I get on asap.

Pursue - Move towards the source of the suspicion.

Suspicious - stop and look in the direction of the suspicion.

It’s scaled by distance (it goes up quicker if the player is closer), but doesn’t take into account anything else just yet. Creating this ‘stretched second’ where you’re just about to be spotted is essential.įor now, there’s just one global suspicion value on the character, which ticks up whenever the player is in sight. This is the system that makes the guards go ‘huh?’, investigate things and generally be interesting.

The suspicion system is what turns this from an action game into stealth.

At the moment I’m just using to check if a player can be seen in a very basic manner. It provides pretty much everything we need in a handy module, and plays nice with behaviour trees. This is the most straightforward part! All our tiles project out collision in 3d space, and then we can just place a nav mesh volume over this.Īs you can see, we had to work out a few issues with the nav mesh agent heights and so on, but our Engineer soon wrangled it into shape.Īs said, we’re using the AI perception system here. I’ve broken down my tasks into 3 sections - Navigation, perception, suspicion. It may seem like overkill now, but it should pay off later when things get more complex. The AI will use the AI Perception system and behaviour trees, as I’ve come to really like them while messing around with other projects. Obviously things are a bit easier as we’re only dealing with 2 dimensions!

It’s no secret that we’re all fans of immersive sim and stealth games like thief, and so I’m looking to take a similar approach ourselves. My next job is to get cracking on the AI for the game.

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