Flight-game physics & deterministic simulationPublic field guide
Wingsuit: deterministic flight physics for a game
Wingsuit is a flight-game project built with Yeho and Dolphin. Its current executable is a small physics testbed, with a six-degree-of-freedom pilot-and-suit model, controlled wind, and repeatable runs. It gives a developer a concrete way to study whether a simulation behaves consistently before judging a finished game's feel.
Start with a practical evaluationThe useful starting point
What Wingsuit gives your team
The team can separate numerical behavior, control response, and the eventual visual experience, making a regression easier to reproduce and explain.
Game-physics developers, simulation engineers, and researchers interested in repeatable interactive systems.
- 01
Fix the conditions
Choose the synthetic pilot, suit, inputs, and seeded wind.
- 02
Advance the model
Run the bounded simulation at its defined fixed timestep.
- 03
Compare the evidence
Inspect state, forces, limits, and agreement between repeat runs.
Model the air relative to the body
A flying body responds to its motion relative to the air, not merely its motion over the ground. Wingsuit's testbed uses SI units, a bounded body-and-suit model, aerodynamic regions, and explicit controls. Wind structure includes deterministic ridge, thermal, and gust components.
A fixed 120 Hz step creates a repeatable time boundary. That helps developers compare two runs with the same inputs and locate a changed equation or state transition. It does not, by itself, prove the realism of a particular suit or pilot.
Use synthetic evidence for the question it can answer
The current coefficients and dimensions are synthetic test inputs. Their job is to expose selected equations, bounds, and lifecycle behavior. The retained twin-run test is an in-process determinism check; persisted replay and real-world suit handling are separate questions.
Ridge Mist is the next intended game experience. Mountains, mist, responsive presentation, and enjoyable controls must earn their own evidence. Treat the present program as a physics and engine experiment, not a completed game or a real-flight training tool.
Current public evidence
Verified engine canary
The executable canary runs nine aerodynamic regions and eight controls at 120 Hz with deterministic atmosphere, ridge lift, lee sink, balanced thermal, seeded gust, SI units, air-relative physics, drag/lift checks, and exact 1,200-tick twin-run evidence. Ridge Mist visuals and final game feel remain under construction.
Explore the project and its evidenceTry one bounded question
Repeat a short flight and explain any difference
A suggested evaluation for your team.
- Record the model version, synthetic coefficients, wind seed, and initial state.
- Run the same bounded input sequence twice at the documented fixed rate.
- Compare the state and force evidence at corresponding ticks.
- Change one wind or control parameter and identify the expected effect.
- Keep the numerical comparison separate from the visual and subjective feel review.
A repeatable simulation result with a clear explanation for controlled changes. It is evidence about the program, not advice for real wingsuit flight.
Before you go further
Common questions about Wingsuit
Is Wingsuit a finished flight game?
No. The executable physics testbed is verified within its bounded scope, while the intended Ridge Mist game experience remains under construction.
Does the model reproduce a real person's wingsuit performance?
The current inputs are explicitly synthetic. They do not qualify a real suit, individual pilot, training program, or operational flight decision.
Does deterministic simulation guarantee realistic physics?
No. Determinism means equivalent inputs reproduce the defined result within the tested conditions. Realism depends on the model, data, and independent validation against the phenomenon of interest.
From an idea to your first evaluation
Build on what you understand.
Start with Wingsuit's public evidence. If it fits your team's problem, compare source memberships or tell us what you would like to evaluate.
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