zwitschi
d1636f6986
Instrumented the movement component so the write is caught at its source rather than inferred from the actor: a UGigLineVehicleMovement subclass is substituted for the stock component through AWheeledVehiclePawn::VehicleMovementComponentName, and it logs CreateVehicle(), the first UpdateState and the component tick. mover tick: Z 661 -> 1143 -> 1443 -> 1718 ..., output null, wheels 0 physics OFF at 3 s: Z 2247, and it does not move for a whole second afterwards profile: t=0.25 Z=515 vZ=-8 | t=0.75 Z=920 vZ=-22 | t=1.25 Z=1287 vZ=173 Two conclusions: 1. The mesh's physics state IS what moves the actor - switching physics off freezes it at once. 2. It moves WITHOUT VELOCITY: position rises ~700 cm/s while vZ oscillates around zero. That is a kinematic teleport, not an impulse and not a force - which is exactly why gravity, mass and penetration all measured clean. The vehicle-state output is null throughout, so the teleport comes from the Chaos layer driving the body kinematically while the vehicle itself was never created. Pawn parked, captures regenerated so the demo stays clean.
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.