Four more things measured instead of guessed: chassis box 452 x 205 x 40, centre 0,0,-18 -> correct for the car world gravity global_gravity_z = 0.0, and the character falls normally spawn height 5 m up: the pawn still climbs, so penetration is not the cause mass override SetMassOverrideInKg at 0.5 s never logged The one number that does not fit: the pawn's mesh component reports bounds extent 1,1,1 while simulating and carrying a 452 cm collision box, and the actor drifts 4.8 m sideways while climbing with no input. A body that simulates with correct collision but degenerate bounds is not the body the movement component is driving, so the next question is which component owns it and whether CreateVehicle() runs at all. The pawn is parked again; the diagnostic logging stays (it is the tool that produced this), and the evidence is in the 'Vehicle physics' task.
Gig Line
A Linux-first Unreal Engine game about walking and driving through a real city. The first release, 0.1.0, is a walkable exterior demo around 6840 Hollywood Blvd / El Capitan Entertainment Centre, covering the south-side frontage between Highland Avenue and Orange Drive plus the north-side frontage within 50 m of the boulevard.
Status
0.1.0 is in progress. The workstation, engine, geo pipeline and project bootstrap are done and verified; a walkable DemoMap exists with terrain, street, sidewalks, kerbs and the hero façade placed from measured coordinates. Façades are still blockouts, and materials are flat colours — both are planned patches.
Current tasks are in TODO.md and the development plan is in ROADMAP.md; what was learned the hard way is in MEMORY.md.
Layout
| Path | Contents |
|---|---|
Game/ |
Unreal project, configuration, source, game-ready content |
Art/ |
Editable Blender sources, blockouts, terrain, street, hero façade, and a local (uncommitted) reference library |
Geo/ |
Source manifests, permitted geographic data, and every geographic tool |
Tools/ |
Unreal-side importers, level builders, and reference gathering |
Docs/ |
Setup, toolchain pins, build and content pipeline, licensing, release checks |
Screenshots/ |
Rendered review captures and their approval state |
Getting started
git lfs install # required: content, images, audio, and geo files are LFS-tracked
git lfs pull
Tools/check-lfs.sh # verifies the lfs filter is active and files are stored as pointers
The engine is installed outside the repository and pinned in Docs/toolchain.md. Setup is in Docs/setup.md; building and the content pipeline are in Docs/build.md.
Documents
- TODO.md — living task list, source of truth for progress
- ROADMAP.md — development plan: milestone goals, scope, and release gates
- MEMORY.md — shared session memory: discoveries, traps, decisions
- AGENTS.md — contributor and agent rules
- PLAN.md — scope, stack, release policy, timeline
- Docs/toolchain.md · Docs/environment.md — pins and workstation audit
- Docs/build.md — fresh-checkout build and content pipeline
- Docs/release-checks.md — release gates
- Docs/licensing.md · THIRD_PARTY_NOTICES.md — licensing
- CHANGELOG.md — release history
Licensing
Code licence is an open decision (MIT proposed). Engine, art, and geographic data are licensed separately; see Docs/licensing.md.