2D Isometric - How do I make a game object snap to a grid?

Unity Engine
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1

Currently making a 2D Isometric tactics like game, I made a selector icon that will be used to select the tile which to send the character to (this will appear after you select the character) , and I managed to get the selector to follow the mouse, but I need help with getting the selector to only move/render when on a walkable tile and snap to the those tiles when I move the mouse around. Anyone know how I would do this?

Additionally I will need the character to snap the grid when they move, but I imagine that will be a little simpler since the character will go to wherever the selector can go. Thanks!

2

always round the coordinates of the cursor, then set the transform of the selector to those rounded coords

this works best if your world coodinates are 1:1 to the grid

if its not 1:1 if its 2:1 for example then round to every even number etc

3

I see so basically instead of trying to convert everything else to the coords of the grid, I just convert the mouse cursor coords for purposes of selecting the grid and things on it. This helps a lot, thanks!