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MRCalderon3DMRCalderon3D/everything-game-dev-code/skills/engineering-common/physics-gameplay-patterns/SKILL.md

physics-gameplay-patterns

Skill105 starsChanged 8 months agoMITView on GitHub

Use physics and collision in a way that supports feel, determinism expectations, and performance constraints.

The file

We split this skill into the rules it gives an agent

5 rules. About 0 are common, 5 are distinctive, and 0 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈5

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 0

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Distinctive:

    Use physics and collision in a way that supports feel, determinism expectations, and performance constraints.

    line 11
  2. Distinctive:

    add debug tools for contact, forces, and state transitions

    line 28
  3. Distinctive:

    test extreme cases and stress conditions

    line 29
  4. Distinctive:

    Keep this skill aligned with the relevant rules layer and current project documentation.

    line 58
  5. Distinctive:

    If engine-specific constraints materially change the workflow, hand off to the matching engine skill or engine-specific reviewer.

    line 59

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Physics Gameplay Patterns

Purpose

Use physics and collision in a way that supports feel, determinism expectations, and performance constraints.

Use When

  • movement, projectiles, collisions, or physical interactions are core to the feature
  • simulation is causing instability
  • feel and correctness are fighting each other

Inputs

  • movement goals
  • collision needs
  • determinism expectations
  • platform performance targets

Process

  1. define what is simulated versus authored or faked
  2. establish ownership of collision and response logic
  3. control update order and frame-rate sensitivity where needed
  4. add debug tools for contact, forces, and state transitions
  5. test extreme cases and stress conditions

Outputs

  • physics interaction rules
  • debug plan
  • edge-case list
  • performance notes

Quality Bar

  • makes ownership, state flow, and failure behavior explicit
  • improves maintainability without over-abstracting
  • supports testing, debugging, and safe iteration

Common Failure Modes

  • coupling systems through hidden globals or timing assumptions
  • writing logic that is hard to test or debug
  • optimizing the wrong layer before measuring

Related Agents

  • physics-programmer
  • gameplay-programmer
  • qa-lead

Related Commands

  • tech-design
  • verify
  • perf-budget

Notes

  • Keep this skill aligned with the relevant rules layer and current project documentation.
  • If engine-specific constraints materially change the workflow, hand off to the matching engine skill or engine-specific reviewer.

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