The collision system for obstacles in RoboRun is built using two colliders in Unity. This was necessary because the game needed to support the player running on top of most objects. Due to time constraints and limited knowledge, we relied on Unity’s built-in collision system instead of creating our own. This allowed all programmers to focus on other critical areas while our technical designer, Oscar Rosin, could create and fine-tune obstacles, ensuring they were balanced and behaved as intended.

Each object has both a regular collider and a trigger collider—one for allowing the player to run on top of the object and another for detecting damage and making the player pass through it.

The pickups were developed using a single base class, ensuring consistent collision functionality and providing a solid foundation for future expansions. This approach simplified the implementation of new pickup variants, allowing designers to create their own even before the code was fully completed.

All pickups use Unity’s Addressable Asset feature, which improves game performance when spawning objects.