The goal of this project is to re‑purpose one C++ interface in all levels of the video game. Gameplay consists of a 3rd person character collecting pickups until she gets them all. Then, the exit gates unlock and she can go meet a counselor who takes her to the next level in the game. The video is showing how the interface lets the placeholders make changes on the geometry, UI, and delegates messaging. You can find more programming samples in the following articles:
Programming Interaction: https://www.3dartviz.com/skills/skills-tech/programming-video-game-interaction-cpp.html
Delegates for UI & Gameplay: https://www.3dartviz.com/skills/skills-tech/delegates-communicate-ui-gameplay.html
Adding Input Action in C++: https://www.3dartviz.com/skills/skills-tech/adding-input-action-cpp-ue.html
Programming Gameplay in C++: https://www.3dartviz.com/skills/skills-tech/programming-gameplay-cpp-ue.html
The proximity to the pickup makes it change color and updates the UI.