How to make mouse color hit?

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#1

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i have this panel on my game (Part > SurfaceGui > Frame > UIGradient) and there are a Click Detector on this part. i want to get the color when player are pressing at this part
already, i have this:

local tweenservice = game:GetService("TweenService")
local event = game.ReplicatedStorage.Event.Color

script.Parent.ClickDetector.MouseClick:Connect(function(plr)
	local color = event:InvokeClient(plr)
	task.wait(1)
	print(color)
end)

local event = game.ReplicatedStorage.Event.Color

event.OnClientInvoke = function()
	local mouse = game.Players.LocalPlayer:GetMouse()
	local target = mouse.Target
	if target and target:IsA("Part") then
		local uiGradient = target:FindFirstChild("SurfaceGui"):FindFirstChild("TextLabel").UIGradient
		if uiGradient then
			local colors = uiGradient.Color
			print(colors)
			if colors then
				return colors
			end
		end
	end
	print("no color")
end

but for sure it’s doesn’t work because this is returning a Color Sequence.
I need to make it return a single color, which the player clicked on

#2

Unfortunately, I believe this is the expected behavior!

I think your best bet is to use a Mouse.Hit the mouse clicks the part, then use some Vector math to map where on the part the player clicked on to a position in the ColorSequence.

This assumes that your gradient is facing the Z axis. (If not, switch any mention of X with Z and Z with X.)

We can retrieve the color by using the percent from the left side the player clicked as “time” in the ColorSequence. The full “time” of the ColorSequence is 1, so if we think of the left side of the part as 0 and the right side as 1, we can find the color!

  1. On player click, check if Mouse.Target is the GUI. If the player is clicking on the GUI, get Mouse.Hit. This will tell you where the player is clicking on the GUI.
  2. Using the position and size of the GUI’s part, you can find the topLeftCorner of where the GUI is in 3D space. You can find how to do this here: How to find corners of part?
  3. Find the difference from the left side by getting the difference between the topLeftCorner.X and the mouse.Hit.Position.X
  4. Convert that to a percentage by dividing that number by the target.Part.Size.X.
  5. Use the evalColorSequence function here to finally get the color: ColorSequence | Documentation - Roblox Creator Hub (given the ColorSequence and the percentage from step 4)

Author’s note: writing instructions for this turned out to be a lot more complicated than I thought it was, so if it helps to have something clarified feel free to reach out. I’ll admit that vector math scrambles my brain.