Name: Password To Open Door | Keypad Unlock System Unreal Engine 5
Uploaded: 2025-12-31 12:00:08
Duration: 19 min 55 s

Question 1

How do I make a keypad password door in Unreal Engine 5?

Accepted Answer

I add a Locked boolean on the door Blueprint and, on interact, I check if it’s locked. If it is, I create a keypad widget, add it to the viewport, show the mouse cursor, and set input mode to Game and UI. When the player enters the correct 4-digit code, I set Locked to false and then open the door.

Question 2

How do I stop my keypad UI from spawning multiple times when interacting?

Accepted Answer

I store the created widget in a variable and use a Validate Get before creating it again. If the reference is already valid, I don’t create another one. When I remove the UI, I invalidate the reference so the next interaction can recreate it cleanly.

Question 3

How do you store and compare the entered passcode in Blueprints?

Accepted Answer

I keep a Final Code variable and append each typed digit by converting to string and using Append (concatenation). Once the player presses Enter, I compare Final Code against the door’s Passcode integer. Based on that boolean, I show “Correct Password” or “Wrong Password” and change the text color.

Question 4

How do I make different doors have different passcodes?

Accepted Answer

I create an integer Passcode variable on the door and mark it Instance Editable. That way, when I select each door in the level, I can set a different code (like 2020 or 2030). The keypad widget reads the passcode from the specific door reference it was spawned with.

Question 5

How do you reset the keypad after a wrong password?

Accepted Answer

I run a Reset Locker custom event that hides all four digit texts using a ForEach loop, resets the message back to “Enter Passcode” with the default darker color, and sets Current Index back to 0. I also reset Final Code back to 0. After that, the player can type again from the first digit.

Question 6

How can I type keypad numbers using the keyboard in UE5 UI?

Accepted Answer

Inside the widget, I bind number key inputs (1, 2, 3…0) and call the same Add Passcode Number event I use for button clicks. For Clear I use the Delete key, and for Enter I use the Enter key. This way both mouse clicks and keyboard inputs work with the same logic.

Question 7

How do I use the same keypad as a phone lock screen in Unreal Engine?

Accepted Answer

I put the Locker UI into a Widget Component on my Phone Blueprint and set the draw size to match the screen. The important part is enabling Receive Hardware Input so the widget can take clicks. After that, it behaves like a 3D phone lock using the same passcode UI.

Password To Open Door | Keypad Unlock System Unreal Engine 5

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