Where would i write a script checking if im in a block for the least lag

[lapis wedge]

Should i put a script in ny torso constantly checking for the part or should i put the script in the part and have it check for the player. Im trying to get the least lag possible an

[static lance]

You should put it in the parts and use a touched event that puts the player in a inPart table and do the rest of ur logic from there and remove them from the table on a touch ended event

Touch isn't very reliable but it should work

[winged birch]

Use touch only if you want to check when you player touches the part, not when they are actively touching the part. If you want something like a zone that always knows when the player is inside it, use heartbeat + spatial query and run it from the part rather than the player.

[lapis wedge]

I want it checking if the player is inside but what is spatial query

Is spatial query the same as GetPartsInPart()

[winged birch]

getpartsinpart is a spatial query