Hexagonal Tilemap Coordinates

[olive skiff]

Hello, I have a problem with my coordinate search system on a flat top hexagonal grid. I have tried several methods such as using an offset, using q r s coordinates, if anyone can help me 🙂

[fickle shard]

https://www.redblobgames.com/grids/hexagons/

[olive skiff]

I've already looked at this great documentation, but I can't seem to apply it

[warm eagle]

What exactly is the problem here? Sorry I don’t quite understand what you’re asking

[olive skiff]

As you can see on my first screenshot, instead of detecting all the cells adjacent to my central cell, it returns me wrong coordinates. Many tutorials use the size of the hexagons to make the coordinate system, but I don't know how to integrate it using hexagonal tilemaps.

[grand lagoon]

I did something like this custom recently and i only used vector2int for positions
x being odd/even is used to correct the neighbours retrieved

Here is a snippet of this. The y offset column is different to the unity grid component

int yOffset = (pos.x + 1) % 2;
Span<Vector2Int> neighbourPositions = stackalloc Vector2Int[6]
{
                                new (pos.x, pos.y + 1),
new(pos.x - 1, pos.y + 1 - yOffset),                   new(pos.x + 1, pos.y + 1 - yOffset),
new(pos.x - 1, pos.y + 0 - yOffset),                   new(pos.x + 1, pos.y + 0 - yOffset),
                                new(pos.x, pos.y - 1)
};