How do I make a part snap to a wall

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#1

I’m trying to make a building system, and I am using raycast normals to offset the building part. The problem is, when the object is rotated, it gets all messed up.

This is how it looks like unrotated, nothing wrong

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image637×562 48.6 KB

This is how it looks like when it is rotated on multiple axis, it is all messed up. It is going through the wall.

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image760×595 69.1 KB

Someone please help me, I cannot find a way to fix it, I searched everywhere, thanks if you can help.

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#2

Could you show the code, also your trying to rotate on every axis?

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#3

This is the main mover

local mouseray = mouse.UnitRay
			local CastRay = Ray.new(mouseray.Origin, mouseray.Direction * 1000)
			local hit, position, normal = workspace:FindPartOnRayWithIgnoreList(CastRay, ignorelist)
			local offset = Functions.getoffsetbynormal(Yrot, viewbuild.PrimaryPart, normal)

			posX, posY, posZ = Functions.calculatePos(position, posX, posY, posZ, viewbuild)
			local gridpos = Vector3.new(posX,posY,posZ)

			viewbuild:PivotTo(CFrame.new(gridpos + ((offset * .5) * normal))*CFrame.Angles(viewbuild.PrimaryPart.Orientation.X, 0, viewbuild.PrimaryPart.Orientation.Z))
			viewbuild:PivotTo(CFrame.new(gridpos + ((offset * .5) * normal))*CFrame.Angles(viewbuild.PrimaryPart.Orientation.X, math.rad(viewbuild.PrimaryPart.Orientation.Y + Yrot*90), viewbuild.PrimaryPart.Orientation.Z))

and this is the normal calculator offsetter Module

module.calnum = function(num)
	return num % 2 == 0
end

module.getoffsetbynormal = function(rotation, object, normal)
	if module.calnum(rotation) then
		return object.Size
	else
		return Vector3.new(object.Size.Z, object.Size.Y, object.Size.X)
	end
end
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#4

Is it possible for you to help me with this?

#5

and yes it is on every axis. I could not figure it out

1 Like