Math for Game Programmers: Predictable Projectiles

In this 2017 GDC talk, Robot Entertainment's Chris Stark explains the math and code behind predictive linear and ballistic projectile aiming, how to handle practical variations, and best practices for exposing knobs to designers.

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[limeboat]

Is it just me or does Chris Stark have a strong heartbeat, paired with that positioning of the microphone.

[REXanadu]

Didn't realize for a while this talk was about making projectiles work for enemy (and possibly friendly) AI.

Still extremely useful information, as I never understood how enemies in games seemed to predict where I was regardless of my location.

[Melthedarthmel]

I love to see how math and physics come across everywhere. It doesn’t matter if you were designing a game or dev it. You must know physics and math! This video gives me lot of tips. Thanks!

[BenVlodgi]

I loved Orcs Must Die!
Really interesting to now learn about the math behind it.
Great talk, going to use some of those equations!

[Kokuyouski]

Yea, don't use object location but instead bounding box center - more overlooked than one would think.

[yuichan]

please keep up with these math for programmers set of videos :D they rock!

[AK_]

Very interesting topic and a great talk! Cheers to Robot entertainment, one of my favorites studios out there!

[GunGryphon]

All I can hear is the little click of someone in the audience taking a photo of each slide XD

[deeliciousplum]

Wonderful talk. Chris exposed me to so many ideas which I hope to explore. 🌻

[heyitsthatdude]

6:19 I'm confused on the 'a' term here. How do you subtract a speed from a vector in this instance?

[martyn]

Listening to this on a good pair of studio headphones and wondered what the low end thudding was. Then I realised where the placement of the lav mic is. I feel unsettled haha

[AK_]

Anyone got the links he is referencing ?

[FranciscoTChavez]

I sure would have been nice if his audio didn't drop for just one word so damn often.

[LisandroLorea]

9:49 so it seems two orcs watched this video

[SmartK]

As an old developer this obvious physics math made sad. What's next? Will there be a talk about how going right is plus and going left is minus in another 20 years? Guess I'm just too old.

[yapayzeka]

this is a racist game name. wtf "orcs must die"