How to Implement a Wait for Gui Button Press?

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#1

Title is pretty self-explanatory. I’ve tried a few different things but this is the closest I could come up with. There are 5 ImageButtons parented to deck. This function needs to wait for and return the ImageButton the player selects. I seem to lack understanding of how Wait() is used with input objects. I had some luck with UIS and getting the gui button at the position MB1 is clicked, but there’s got to be a way to simply wait for button activation.

local function WaitForInput(buttonPressed)
	print("Waiting for selected slot")
	for i, v in ipairs(deck:GetChildren()) do
		buttonPressed = v.Activated:Wait()	
	end
	return buttonPressed
end
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#2

I think you need to set up a connection to each button, the connection will wait until its clicked/tapped.

v.Activated:Connect(function()
--do  something when button pressed here
end)

look at the example at the bottom of this page:
https://developer.roblox.com/en-us/api-reference/class/ImageButton

#3

So the problem is that the rest of the code already consists of what is essentially that. To simplify, the player presses a button, then it needs to wait for another button to be pressed, and that button needs to be returned.

#4

This section of code is what calls the function in question

for i, button in ipairs(collection:GetChildren()) do
	button.UseRequest.Activated:Connect(function()
		local selectedSlot = WaitForInput()
		print(selectedSlot)
		selectedSlot.Image = button.Image
		selectedSlot.DiceInSlot.Value = button.Name
	end)
end
#5

The MouseButton1Click event which is shared by various Gui button instances is fired whenever the button is clicked.

#6

Here’s an example script which should help set you in the right direction.

local button = script.Parent
local isClicked = false

button.MouseButton1Click:Connect(function()
	isClicked = true
end)

repeat
	task.wait()
until isClicked
--do other code
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#7

:open_mouth: I had no idea that was the case. I thought .Activated was the only way to detect if a button is pressed. But what about other platforms like mobile? Does a tap still register as MouseButton1Click?

#8

I take that back. I see now I should’ve gone back to the basics and looked at the events of ImageButton on the api. ImageButton | Roblox Creator Documentation

#9

TouchTap is the equivalent for touch screen devices.

https://developer.roblox.com/en-us/api-reference/event/GuiObject/TouchTap

#10

I noticed InputBegan would be the universal event for all platforms right?

#11

So after some trial and error this is the only way I could make this work. Works without issue in this case anyways.

Loop that calls function

for i, button in ipairs(collection:GetChildren()) do
	button.UseRequest.Activated:Connect(function()
		local selectedSlot = WaitForInput()
		print(selectedSlot)
		selectedSlot.Image = button.Image
		selectedSlot.DiceInSlot.Value = button.Name
	end)
end

Function

local function WaitForInput(buttonPressed)
	local slot1 = deck:WaitForChild("1")
	local slot2 = deck:WaitForChild("2")
	local slot3 = deck:WaitForChild("3")
	local slot4 = deck:WaitForChild("4")
	local slot5 = deck:WaitForChild("5") 
	local done = false
	
	while not done do
		wait(1)
		slot1.Activated:Connect(function()
			buttonPressed = slot1
		end)
		slot2.Activated:Connect(function()
			buttonPressed = slot2
		end)
		slot3.Activated:Connect(function()
			buttonPressed = slot3
		end)
		slot4.Activated:Connect(function()
			buttonPressed = slot4
		end)
		slot5.Activated:Connect(function()
			buttonPressed = slot5
		end)
		if buttonPressed ~= nil then
			done = true
		end
	end	
	return buttonPressed	
end
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