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Procedurally Generating A Hexagon Grid in Unity

Game Dev Guide

148,963 views

Hexagons are common in a lot of strategy games, so today let's look at how we can create them from scratch in Unity.

Further Reading - https://www.redblobgames.com/grids/he...
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20 Comments

@NachitenRemix 4 years ago

Hexagon is the bestagon.

@lacata2570 4 years ago

"Hexagons are the bestagons" felt like a CGP Grey easter egg

@jackpaice 3 years ago

Please make your code available on a repo so we don't have to spend 1h trying to figure out where we went wrong by copying manually.

@stonefreak5763 4 years ago

Hint: If u want to stay in 2D, then the Grid Component in Unity has an option for exactly that.

@AliveNotDeadmund 3 years ago (edited)

For anyone with a null error when you go to render the first hex, make sure you update the return on CreateFace() to return new Face(vertices, triangles, uvs); because he initially writes it as 'return Face()' and then later amends it.

Hope that helps!

@DmytroMomotov 4 years ago

Good tutorial, it would be helpful to have visual representation of what code is doing side by side with current piece of code, otherwise it becomes a bit confusing

@bakerfx4968 4 years ago

My face lit up when I saw you had a new video. It was amazing as always! Thanks dude

@Sphealclubbing 4 years ago

I've just started trying to learn how to code for games and this Channel is just so cool. There's not a lot out there to help learn to make strategy games

@mrlucky974 4 years ago (edited)

YES ! Your videos are so great, and this one did not disappoint.
Hexagons are the bestagons...

@RogériodeLeonPereira 4 years ago

Great video, as usual :-)
Calculating Math.sqrt(3) is expensive, and because you are doing that several times, maybe you could create a constant with that value instead.

@PhaygeWoW 2 years ago

I'm on Unity 2022.3.13f1 and cannot get even the base mesh to render... I have no idea what's going wrong. Has anyone else encountered this?

@wholesomedegenerate869 4 months ago

Thanks to this vid, not only could I learn development but I was finally able to find again that one game on steam that I was incredibly interested in but forgot the title. As Far As The Eye, you're as beautiful as the day I lost you!

@Kwevino 3 years ago

How do you use the script? What do you do after you've written it?

@Island54Games 4 years ago

Nice stuff. I just started working on hexagons for my own game literally hours before this video came out.

One thing I strongly suggest is that you consider using axial or cubic coordinates instead of offset coordinates. While the coordinates aren't quite as intuitive at first, the maths gets much simpler. In your coordinate conversions for example, you get rid of all those odd/even conditionals.

@Sebvantiggele 4 years ago

This man deserves more attention, he’s so helpful.

@rutchjohnson 4 years ago

For those getting an error when first rendering your hex it might be related to the OnValidate method. I had to check for not null on m_mesh. Example: if(Application.isPlaying && m_mesh != null)

@nj5374 4 years ago

I'm a massive beginner so most of this went way over my head but this has inspired me to learn to use the mesh renderer by rendering some shapes procedurally - cheers!!

@Tasarran 4 years ago

Instant like for "Hexagons are the bestagons!"

@mementomori7160 4 years ago (edited)

0:22 And in my, hexagons are... bestagons

Edit 1:
0:51 YES my brother!
Also I've already worked on it for a while, there is a simple way to make hexagon based coordinate system, also allows for making layers of hexagon tiled planes, I guess you'll show it on one of other methods soon