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Add progressive 3D samples 1602–1604 (navigation, FPS, platformer)<BUILD_PR_LEVEL_17_6_SAMPLES_1602_TO_1604_PROGRESSIVE>
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‎docs/dev/CODEX_COMMANDS.md‎

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REASONING: high
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COMMAND:
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Implement minimal 3D physics + sample:
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- add basic physics update loop
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- integrate with movement system
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- create sample 1601 (3D cube explorer)
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- ensure sample loads via samples index
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Implement progressive 3D samples:
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- create 1602 maze navigation sample
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- create 1603 first-person walkthrough
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- create 1604 basic platformer (gravity/jump)
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- register in samples index
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- validate no regressions across all samples

‎docs/dev/COMMIT_COMMENT.txt‎

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Introduce 3D physics base and first sample 1601 Cube Explorer<BUILD_PR_LEVEL_17_5_PHYSICS_BASE_AND_SAMPLE_1601>
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Add progressive 3D samples 1602–1604 (navigation, FPS, platformer)<BUILD_PR_LEVEL_17_6_SAMPLES_1602_TO_1604_PROGRESSIVE>

‎docs/dev/reports/launch_smoke_report.md‎

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# Launch Smoke Report
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Generated: 2026-04-15T19:36:10.578Z
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Generated: 2026-04-15T19:55:49.765Z
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Filters: games=false, samples=true, tools=false, sampleRange=all
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| PASS | sample | 1504 | samples\phase-15\1504\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |
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| PASS | sample | 1505 | samples\phase-15\1505\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |
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| PASS | sample | 1506 | samples\phase-15\1506\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |
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| PASS | sample | 1601 | samples\phase-16\1601\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |
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| PASS | sample | 1601 | samples\phase-16\1601\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |
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| PASS | sample | 1602 | samples\phase-16\1602\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |
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| PASS | sample | 1603 | samples\phase-16\1603\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |
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| PASS | sample | 1604 | samples\phase-16\1604\index.html | | npm install --prefix ./tmp ws → npm run test:launch-smoke |

‎docs/dev/reports/validation_report.txt‎

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Post-run: verify physics loop + sample 1601 execution + no regression
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Post-run: verify all samples 1602–1604 + no regression

‎docs/dev/roadmaps/MASTER_ROADMAP_HIGH_LEVEL.md‎

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- [ ] 1607 - 3D Space Shooter
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- [ ] 1608 - 3D Dungeon Crawler
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### Advanced 3D Samples
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- [ ] 1610 - Lighting Demo
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- [ ] 1611 - AI Navigation Demo
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- [ ] 1612 - Large World Streaming Demo
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### Advanced 3D Samples (1609+ EXPANDED VALIDATION TRACK)
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- [ ] 1609 - Lighting Demo
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- [ ] 1610 - Hybrid 2D/3D World Sample
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- [ ] 1611 - Multiplayer Sync Demo
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- [ ] 1612 - Stress Test (1,000 Objects)
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- [ ] 1613 - Input Lab
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- [ ] 1614 - Camera Modes Lab
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- [ ] 1615 - Entity Composition Demo
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- [ ] 1616 - World Streaming / Chunk Loader
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- [ ] 1617 - Large World Streaming Demo
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- [ ] 1618 - Lighting & Materials Lab
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- [ ] 1619 - Debug HUD Sample
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- [ ] 1620 - Mini Game (3D Reference Sample)
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- [ ] 1621 - AI Navigation Demo
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### 3D Capability Requirements
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- [ ] 3D rendering

‎docs/dev/roadmaps/phases.txt‎

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Yes — and you’re actually in a very clean, well-positioned state.
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Here’s what exists **beyond Phase 16 (3D execution)** in your roadmap right now:
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---
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## ✅ Phase 17 (your current work — mislabeled but active)
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This is your **actual 3D execution phase** (even though it’s described under Phase 16 in the doc).
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From your roadmap:
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* 3D activation + validation gate
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* 3D engine foundation (render, scene, camera, movement, collision, physics)
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* 3D debug support
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* Full sample track (1601 → 1608)
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* Advanced samples (lighting, AI nav, streaming)
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* 3D tool alignment
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👉 **You are actively executing this right now**
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---
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## 🚧 Phase 18 — *Finalize Engine* (THIS IS THE ONLY TRUE “AFTER” PHASE)
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This is the only phase that comes after 3D:
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### Core Objectives
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* Enforce engine usage everywhere
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* Eliminate “sample-as-engine” leakage
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* Normalize repo as if freshly built
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### Key Work Areas
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* Migrate any local logic → engine
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* Identify misclassified games vs samples
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* Rebuild samples/games cleanly
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* Convert simulated systems → real (networking)
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* Enforce **one class per file**
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* Clean CSS layering
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* Remove `.keep` / dead folders
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* Docs reclassification + cleanup
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* Consolidate PR sprawl into capability views
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### Finalization Goals
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* Lock APIs
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* Clean boundaries
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* Document contracts
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* Fully stabilize runtime + networking
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---
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## 🧠 Important Insight
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You **did NOT overbuild the future** — this is good.
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Your roadmap intentionally stops here:
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```
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Phase 17 → Build 3D
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Phase 18 → Finalize Everything
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DONE
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```
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There is **no Phase 19+**, and that’s correct.
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Because after Phase 18:
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👉 You are no longer building the engine
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👉 You are building **games/products**
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---
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## 🏁 What You’ve Achieved Structurally
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You now have:
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* Fully stabilized 2D engine ✅
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* Networking complete and validated ✅
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* Debug platform production-ready ✅
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* Tools ecosystem in place ✅
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* Shared layer properly extracted ✅
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* Clean repo structure ✅
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And now:
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* 3D is being layered in correctly (no rework risk)
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---
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## 🔥 Bottom Line
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No — you haven’t added anything beyond Phase 16/17 except:
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👉 **Phase 18 (Finalize Engine)**
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And that’s exactly right.
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---
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## 🧭 What happens AFTER Phase 18 (not in roadmap, but reality)
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This becomes your real future:
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* Build actual games (not samples)
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* Ship polished titles
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* Possibly:
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* plugin ecosystem
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* asset packs
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* multiplayer games
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* tooling UX polish
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---
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You’re at the exact transition point from:
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> “engine architecture work”
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➡️ to
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> “actual game creation”
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And everything you’ve done so far sets that up cleanly.

‎docs/pr/BUILD_PR_LEVEL_17_6_SAMPLES_1602_TO_1604_PROGRESSIVE.md‎

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# BUILD PR: 17.6 Samples 1602–1604 Progressive Expansion
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## Purpose
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Expand 3D sample coverage with progressive capability demonstrations.
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## Scope
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- 1602: Maze Runner (navigation)
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- 1603: First Person Walkthrough
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- 1604: Basic Platformer (gravity/jump)
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## Testability
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- All new samples load from index
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- Each demonstrates isolated capability
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- No regression to prior samples or systems
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## Acceptance
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- [ ] 1602 loads and navigates
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- [ ] 1603 FPS controls function
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- [ ] 1604 platform movement works
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- [ ] No regressions across engine

‎samples/index.html‎

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<p>Playable 3D sample games showcasing camera systems, 3D movement, rendering, physics, and world interaction built on the engine.</p>
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<div class="grid">
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<a class="live" href="./phase-16/1601/index.html" title="Minimal 3D cube movement, camera orbit, and AABB collision on top of the engine loop." data-tags="camera3d, movement3d, physics3d, scene, themetokens" data-primary="cube-explorer">Sample 1601 - 3D Cube Explorer</a>
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<a class="planned" href="./index.html#phase-16-sample-1602">Sample 1602 - 3D Maze Runner</a>
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<a class="planned" href="./index.html#phase-16-sample-1603">Sample 1603 - First Person Walkthrough</a>
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<a class="planned" href="./index.html#phase-16-sample-1604">Sample 1604 - 3D Platformer</a>
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<a class="live" href="./phase-16/1602/index.html" title="Navigate a compact 3D maze with collision-aware movement." data-tags="camera3d, maze3d, movement3d, physics3d, scene, themetokens" data-primary="maze-runner">Sample 1602 - 3D Maze Runner</a>
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<a class="live" href="./phase-16/1603/index.html" title="Walk through a first-person 3D lane using camera-relative movement." data-tags="camera3d, firstperson, movement3d, physics3d, scene, themetokens" data-primary="first-person">Sample 1603 - First Person Walkthrough</a>
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<a class="live" href="./phase-16/1604/index.html" title="Run and jump across a 3D platform lane with gravity and AABB collisions." data-tags="camera3d, gravity, jump, movement3d, physics3d, platformer3d, scene, themetokens" data-primary="platformer-3d">Sample 1604 - 3D Platformer</a>
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<a class="planned" href="./index.html#phase-16-sample-1605">Sample 1605 - 3D Driving Sandbox</a>
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<a class="planned" href="./index.html#phase-16-sample-1606">Sample 1606 - 3D Physics Playground</a>
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<a class="planned" href="./index.html#phase-16-sample-1607">Sample 1607 - 3D Space Shooter</a>

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