How to Unlock a Door with a Key in UE5: Unreal Engine 5 for Beginners #22
Add a layer of gameplay strategy to your level! In Part 22 of the Unreal Engine 5 Tutorial Series, we take our sliding door to the next level by requiring a keycard to unlock it.
This lesson introduces critical programming concepts used in every game: Variables and Branching Logic. You’ll learn how to create a "Boolean" variable to track if a player has an item, how to build a pickup actor that destroys itself when collected, and how to use a Branch node to check for conditions before allowing the door to open.
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In this logic and keycard tutorial, we cover:
Boolean Variables: Creating a "HasCard?" toggle in the Character Blueprint.
Pickup Actors: Building the Keycard BP with sphere collisions and rotating movement.
Destroy Actor: How to properly remove items from the world once collected.
Branch Nodes: Using "If/True/False" logic to control the flow of your Blueprints.
UI Feedback: Using the "Print String" node to tell players they need a key.
Collision Fixes: How to stop the camera from clipping through your door meshes.
Clean Code: Using Comments to keep your Blueprint graphs organized.
Navigation:
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