How to tell if Part.Touched is flat

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1

I am making a grenade that only explodes on flat surfaces.

I am using the part.Touched event to tell if the grenade hit something, but I am wondering how I can tell if the part it touched is a flat surface.

2

You could maybe check if the Orientation of the Part it touches is flat?

I think you can add a BoolValue to the Part to determine whether it’s flat or not? I was gonna say my first thing, but just realized that the Orientation cannot be replicated server or client wise

3

Well there are cubes in my game, the grenade should be able to land on top, but not on the side.

4

You can raycast downwards after the grenade touches something. The RaycastResult returns a Normal which you can use to determine where the part under the grenade is looking

5

what would the normal be if it is flat?

6

The Normal is a unit vector that is perpendicular to the surface where the raycast hit. You would have to get the angle between the Normal vector and Vector3.new(0, 1, 0) which is a vector for a normal that faces straight up

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