Rotation, Movement, Randomization, Spawning

Unreal Engine 5, C++

Two small C++ Actor classes — a rotating platform and a moving platform — used as a vehicle for the core structure that basically every dynamic puzzle object in Unreal ends up needing: Tick, DeltaTime, and the reflection system.

What was built

• Two distinct Actor classes, each with its own StaticMeshComponent and its own behavior: one spins continuously via AddActorLocalRotation() in Tick(), the other shuttles back and forth between a stored start location and a max range, both driven by DeltaTime so the motion holds up regardless of frame rate.
• Everything that matters is a UPROPERTY(EditAnywhere) — rotation speed, move speed, travel range, starting position. All of it is tunable straight from the Details panel while the level is playing, no recompiling needed to retune a platform's feel.
• Multiple instances placed in a level, each with different speed/range/rotation values, to confirm the same two classes could carry a whole room of platforms, traps, and elevators without turning into one-off scripts per object.

Stretch goals

• Timer-based logic instead of polling every tick — FTimerHandle and GetWorld()->GetTimerManager().SetTimer(...) drive things like a platform disappearing after a delay, which is cheaper than checking an elapsed-time condition every single frame.
• Randomized puzzle generation — platforms get spawned at runtime via SpawnActor at randomized locations, with FMath::RandRange driving their speed, range, and rotation, so the same two Actor classes produce a different puzzle layout on every playthrough instead of a fixed, memorizable one.

Links

GitHub · YouTube