In this project, we built two essential gameplay mechanics in Unreal Engine using Blueprints: an automatic door system and a moving platform. The door opens and closes smoothly when the player enters and exits a collision box, using Overlap events, a Timeline, and Lerp (Rotator) to create realistic rotation. Similarly, the platform moves up and down by storing its start location and using a Timeline to interpolate between positions with Set Actor Location. Both systems demonstrate how to create smooth, optimized movement without using Event Tick, forming the foundation for interactive level design in games.
https://dev.epicgames.com/community/learning/tutorials/X7OY/unreal-engine-blueprint-open-close-door-and-platform