Unity currently does not offer a built-in layout group for creating stackings of hexagonal elements, such as those sometimes used for skill grids. This package aims to fill that gap by providing a hexagonal layout group that will page UI elements into a grid.
In Unity, select Window > Package Manager.
Select Add package from git URL... and paste the following URL:
https://github.com/mpewsey/HexagonalUI.git
To lock into a specific version, append #{VERSION_TAG} to the end of the URL. For example:
https://github.com/mpewsey/HexagonalUI.git#v1.3.1
To use, simply attach the HexLayoutGroup component to a Game Object, as you would with Unity's built-in layout group components. The cell orientation component setting is based on the direction of the hexagonal element's long diagonal. In the image above, the hexagons on the top feature a horizontal cell orientation, whereas the hexagons on the bottom feature a vertical orientation.
Due to the staggering of the hexagonal elements, the default Button component input navigation tends to navigate randomly. Therefore, if buttons will serve as the children of the layout group, it is recommended that the HexButton component, which provides more regular navigation behaviour, be used instead.
To match the dimensions assigned by the hexagonal layout group, it is recommended that hexagonal tile art have their long diagonals to short diagonals proportioned to 1 : 0.86602540378. For instance, the example tile images in this package are 100 px by 87 px, including the required rounding to the nearest pixel.