How to make a script to cycle through decals every click?

So what i want to do is making a script that cycles through a decal every time you press a button, also would like to have a button that goes back a decal every time you press it, so essentially like 2 buttons that can go forward or back a couple decals on a specific part. Thanks!

You can store all the decal textures in a table; cycle through them by getting the current index and incrementing it by 1 or -1.

local Decals = {
	"rbxasset://textures/SpawnLocation.png",
	-- Your decal textures here
}

local Decal = workspace.SpawnLocation.Decal -- Change to where your decal is located
local CurrentIndex = 1

local function NextDecal(increment)
	local newIndex = CurrentIndex + increment

	if newIndex == 0 then newIndex = #Decals end -- If the new index is at the start of the table it will go to the end

	if newIndex > #Decals then newIndex = 1 end -- If the new index is greater than the size of the table (indicating that it has reached the end of the table), it will reset back to the start.
	
	local newDecal = Decals[newIndex]

	CurrentIndex = newIndex
	Decal.Texture = newDecal
end

script.Parent.Forward.MouseButton1Click:Connect(function()
	NextDecal(1)
end)

script.Parent.Backward.MouseButton1Click:Connect(function()
	NextDecal(-1)
end)