deterministic-simulation-step-contract

What problem does it solve?

This Skill addresses issues where game outcomes are not reproducible across different runs, replays, or network peers due to mixed fixed-step and render-step logic, leading to simulation drift.

Core Features & Use Cases

• Fixed-Step Processing: Ensures authoritative simulation state is mutated only within explicit fixed-step boundaries.
• Interpolation Separation: Decouples presentation interpolation and smoothing from the core mutation logic.
• Stable Ordering: Defines deterministic execution order for subsystems to prevent non-reproducible results.
• Use Case: Essential for games requiring precise replays, competitive multiplayer synchronization, or robust automated testing where identical inputs must yield identical outputs.

Quick Start

Ensure gameplay outcomes are reproducible by partitioning systems into simulation mutation and presentation interpolation.