suaveplan/openspec/changes/enterprise-gaming-r3f-water/tasks.md

Tasks: enterprise-gaming-r3f-water

0. Pre-flight (non-negotiable)

• 0.1 Confirm clean working tree (git status reports nothing) and no in-flight worktrees with uncommitted work (git worktree list then git status in each)
• 0.2 If any worktrees exist under .claude/worktrees/, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (git worktree remove) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
• 0.3 Confirm the package set in MANIFEST.md matches find packages -maxdepth 3 -name package.json count. Drift here means a prior change archived without regenerating the manifest.

Phase 1 — Scaffold

• Create gaming/scene/r3f-water/ (@suaveplan/r3f-water, 0.1.0, sideEffects: false)

Phase 2 — Types + Gerstner math

• src/utils/gerstner.ts — wave height sum at (x, z, t)
• Tests + docs

Phase 3 — Shaders

• Ocean vertex/fragment shaders (Fresnel, foam, depth color)

Phase 4 — Components + stories

• WaterPlane — simple flat reflective water
• Ocean — Gerstner-animated mesh + custom shader material

Phase 5 — useWaterHeight hook

• Tests + docs

Phase 6 — Pre-publish gate

• bunx turbo lint typecheck test --filter=@suaveplan/r3f-water green
• 100% coverage
• Publish: bun scripts/publish.ts --package @suaveplan/r3f-water