This is a paid asset, but now you can download Grids 2D Free.
Detail this asset from Unity Store: Original Link
Grids 2d v6.4.2 (Latest version)
Grids 2D is an easy to use, highly optimized and flexible grid generator and territory/cell highlighter/fader.
– Configurable, fully interactive and flexible grid generation, including Voronoi tessellation, boxed, rectangular and hexagonal types.
– Produces highly optimized grid mesh with reduced vertex count.
– Two levels of regions: cells and territories.
– Fastest selectable and highlighting system for both cells and territories.
– Coloring and fade out support for both cells and territories.
– Control the visibility of individual cells using API or alpha texture mask.
– Change visibility, color or texture of cells from Unity editor with the integrated grid editor.
– Define territories using the API, the grid editor or assigning a color texture
– A* Path Finding support. Get configurable paths from one cell to another with a single function call. Define blocking cells or specify crossing costs for entire cells or custom costs per hexagon side!
– Range function: get reachable cells within a given distance and a starting cell.
– Extensive API (C#) for controlling and managing the grid, including selectable cells/territories, finding neighbours and merging cells.
– 16 demo scenes included with practical examples (checkers board, texture/mosaic revealing, cell visibility, vertex locating, texturing, cell merging, masking, path finding, …).
– Works with orthographic and perspective cameras!
– Unity 5.5+, 2017, 2018 and 2019 support.
– Compatible with Standard/builtin and LWRP.
– Full source code included (C#).
Product Documentation | Support Forum | Youtube Channel
Check out also Terrain Grid System which supports 2D and also Unity terrain grids!
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