zwitschi
bc2e9c3b8e
A top-left readout for performance work: smoothed FPS and frame time, the worst frame in a rolling two-second window, the active view, player speed, a frame counter and the player's position in metres from the project origin. - F3 toggles it, through the console variable gigline.Debug so a packaged build can be checked without a rebuild (IA_ToggleDebug). - On automatically for -perf and -qaselftest, so a performance capture never depends on pressing a key first; off in the built demo, because a player should not see an FPS counter over Hollywood Boulevard. - The first two seconds are a warm-up window excluded from the worst-frame figure. Without it the readout showed "worst 400 ms" for a healthy run: the startup shader and streaming hitches dominated the rolling maximum. Measured cost on the self-test route at 1440p: 2.64 to 2.77 ms average, about 5 %, still 6x the floor. The release-check number stays the overlay-off run; the overlay-on series is committed beside it as Docs/perf/0.2.0-walk-frametimes-overlay.csv. Docs: controls (F3 row, overlay section, switch table), release checks (cost row), architecture building block view (HUD and input list).
107 lines
6.2 KiB
Markdown
107 lines
6.2 KiB
Markdown
# Building Block View
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## Whitebox Overall System
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The system decomposes into five top-level building blocks:
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| **Name** | **Responsibility** |
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| --- | --- |
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| Gameplay | Player pawn, movement, camera, input bindings, HUD, game mode |
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| Site | Terrain, road, sidewalks, kerbs, crossing markings, site-level collision |
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| Façades | Hero façade (El Capitan), south block frontage, north-side buildings |
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| Art Pipeline | Blender models, geographic data, export scripts, import scripts |
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| QA & Review | Screenshot pipeline, self-test harness, visual review workflow |
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### Gameplay
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C++ classes in `Game/GigLine/Source/GigLine/`:
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| Class | Responsibility | Key detail |
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| --- | --- | --- |
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| `AGigLineCharacter` | First-person player pawn | 1.75 m capsule, 4.5 m/s walk, Enhanced Input bindings, reset, pause, `-qaselftest` harness |
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| `AGigLineGameModeBase` | Sets game mode and HUD class | `HUDClass = AGigLineHUD` |
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| `AGigLineHUD` | HUD text overlay | `DrawText` every frame: ODbL attribution bottom-left, controls bottom-right, and an F3 debug readout top-left (`gigline.Debug`, on for `-perf`/`-qaselftest`) |
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| `AGigLineNPCPerson` | NPC prefab (future) | Capsule + visible MPFB body, feet on Z 0 |
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| `AGigLineShotActor` | Screenshot camera walker | Drives cameras in `-game` mode, `FScreenshotRequest`, quits |
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| `UGigLineAssetTools` | C++ collision helpers | `SetComplexCollisionAsSimple` on `StaticMesh` assets |
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Input assets in `/Game/Input/`: `IA_Move`, `IA_MoveBack`, `IA_Strafe`, `IA_StrafeLeft`, `IA_Look`, `IA_Jump`, `IA_Reset`, `IA_Pause`, `IA_ToggleCamera`, `IA_ToggleDebug`, bound in `IMC_Default`.
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Player-facing bindings: **WASD** move, **mouse** look, **Space** jump, **R** reset, **Escape** pause, **V** swap first/third person. The camera and body work landed with `0.2.0` (see ADR-9): the shipped default view stays first person, and `-thirdperson` starts the pawn in the third-person rig — used by the screenshot run so the review is reproducible.
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### Site
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Static meshes and materials in `/Game/Hollywood/Site/`:
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| Asset | Role |
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| --- | --- |
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| `Terrain_DEM` | Ground heightfield (complex-as-simple collision) |
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| `Road_Hollywood` | Carriageway surface (block-all collision) |
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| `Sidewalk_North`, `Sidewalk_South` | Pedestrian surfaces (block-all collision) |
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| `Kerb_North`, `Kerb_South` | Kerb edges |
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| `Crossing_Markings` | Zebra markings at signalised crossing |
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| `M_Asphalt`, `M_Concrete`, `M_KerbConcrete`, `M_Ground`, `M_RoadPaint`, `M_Stucco`, `M_FacadeStone` | Procedural materials (world-space-noise blend + roughness) |
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### Façades
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| Asset | Role |
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| --- | --- |
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| `SM_HeroFacade` | El Capitan Entertainment Centre detailed façade |
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| `SM_ElCapitanTheatre`, `SM_Budget_6822`, `SM_Hollywood_6806`, `SM_Hollywood_6902`, `SM_Hollywood_6922`, `SM_LeeDrug_6800` | South block frontage (6 buildings) |
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| `SM_Madame_Tussauds`, `SM_TCL_Chinese_Theatre` | North-side buildings (within 50 m) |
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| `SM_Retail_LeeDrug`, `SM_Retail_6806` | Retail trim over 6800 and 6806–6820, modelled from their own photograph (`Tools/retail_frontage_build.py`, staged as `RetailTrim_*`). `6822 Budget` stays a bare volume: no photograph exists. |
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### Art Pipeline
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Python scripts in `Tools/` drive the content pipeline:
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| Script group | Purpose |
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| --- | --- |
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| `export_*`, `hero_facade_build` | Blender headless export (FBX) |
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| `ue_import_*`, `ue_hero_facade_import` | Unreal headless import + placement |
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| `character_anim_build`, `ue_character_anim_import` | Character animation clips (`GigLine_Idle`, `GigLine_Walk`) and their import |
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| `export_*`, `hero_facade_build`, `retail_frontage_build`, `theatre_trim_build`, `facade_kit_build` | Blender headless export (FBX); trim builders work in world coordinates |
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| `ue_import_*`, `ue_hero_facade_import`, `ue_import_retail_detail` | Unreal headless import + placement |
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| `ue_build_demo_map`, `ue_build_review_map` | Map assembly (lighting, meshes, player start) |
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| `ue_create_input_assets` | Enhanced Input actions + mapping context |
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| `render_screenshots.sh` | Screenshot capture pipeline |
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| `judge_screenshot.py` | Vision-model pre-check (optional) |
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| `input_emulation.py`, `input_test.py` | OS-level virtual keyboard/mouse injection for input verification |
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| `Tools/_common.py` | Pure helper shared by Blender builders, importable without Blender (bay layout) |
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| `Tools/tests/` | Stdlib `unittest` tests for the pure parts of the tools (`requirements-tools.txt`) |
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| `Geo/tools/mapbox_buildings.py` | Second height source: Mapbox `mapbox-streets-v8` building data vs our OSM heights |
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Source data: `Art/blender/` (`.blend` files), `Geo/` (OSM extracts, DEM, verification docs). Tool rules (one script one job, result files for commandlets, clean worktree for generators, documented inventory, tests for the pure parts) are in [`AGENTS.md`](../../AGENTS.md#python-and-shell-tooling).
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### QA & Review
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- `AGigLineShotActor` walks fixed cameras in `-game` mode, captures PNGs, and quits.
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- `-qaselftest` switch on `AGigLineCharacter` runs a core-ticker harness: walk 2 s, reset, pause/unpause, ground transect — all PASS/FAIL logged.
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- `Screenshots/` holds committed PNGs and `README.md` approval table.
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## Level 2
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### White Box Gameplay — Input Flow
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1. `AGigLineCharacter::SetupPlayerInputComponent` binds `IA_*` actions to `MoveForward`, `MoveBack`, `MoveStrafe`, `MoveLeft`, `Look`, `StartJump`/`StopJump`, `ResetToStart`, `TogglePause`.
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2. Movement delegates to `ApplyMove(Forward, Strafe)` → `AddMovementInput`.
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3. Look applies yaw/pitch scaled by `LookSensitivity` (Y invertable via `bInvertLookY`).
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4. `ResetToStart` teleports to `StartLocation` (captured on first grounded frame), clears velocity, resets control rotation.
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5. `TogglePause` toggles `APlayerController::SetPause`, swaps input mode between `FInputModeGameOnly` and `FInputModeUIOnly`, shows/hides mouse cursor.
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### White Box Site — Collision Model
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- Every site mesh (road, sidewalks, kerbs, crossing) is `STATIC` with `BlockAll` collision.
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- `Terrain_DEM` uses `CTF_UseComplexAsSimple` (forced by `UGigLineAssetTools` at build time, saved on the asset).
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- The terrain corridor is carved to half-width 10.7 m around the road centreline so the player can walk the carriageway and both sidewalks.
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- Ground Z: north sidewalk 395, road 366, south sidewalk 317 (3.94 m fall along the block, matching the DEM).
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