- 01Read slopes and bends
- 02Build speed
- 03Choose a preserving route
- 04Check the next segment
Momentum-preserving routes
Velocity can accumulate, dissipate and change direction. A route matters for the momentum it carries into the next segment, not just its length.
The player's decision
Take a sharp shortcut or preserve speed on a longer curve for the gap ahead?
Original scenario
Original setup: a short route hits a right-angle wall; a longer curve preserves speed needed at the final gap.
Start with this prototype
Build two branches and an exit gap requiring speed. Show a velocity arrow and recent trail. Reach the exit or retry a fall; use simple acceleration and drag, not a full vehicle simulation.
Change one variable
Change turning loss; compare exit velocity as well as completion time.
What to observe in a playtest
Can players deliberately choose the longer fast route? Does exit speed stay stable across frame rates?
Take the full design card
Includes rules, scope, tuning questions and sources for further planning. It does not create a project automatically.
Original analysis · version 1
Common pitfall
Zeroing velocity on key release removes the momentum decision. Handle collision velocity consistently too.
Observations and sources
Cases refer to public documentation. Developers and community wikis are credited separately; document review is not a claim of hands-on testing.
- The King's Bird
The developer explicitly combines momentum-based platforming with physical gliding.
- Boomerang X
Launching toward a thrown boomerang preserves momentum, illustrating velocity carried between actions.
Brief for the studio
Opens the AI studio with the brief below in the input. You can edit it. Nothing starts automatically.
Build two branches and an exit gap requiring speed. Show a velocity arrow and recent trail. Reach the exit or retry a fall; use simple acceleration and drag, not a full vehicle simulation.
Covers are original AI-generated style illustrations. Game names reference publicly visible design choices and remain the property of their owners. This atlas does not supply screenshots or assets from those games. Prompts and combinations are original drafts for new games.