Commit Graph
229 Commits
Author SHA1 Message Date
adminandClaude Opus 5 d931e66f92 e2e 41b finds the ball's bounces by its turning points instead of frames within a pixel of the ground: the ball lands at ~9 px per frame, so whether a drawn frame catches the landing depended on where it fell between two physics steps, and CI missed the first landing and read the second bounce as the first (#147)
game-maker / gate (push) Successful in 1m47s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 20:55:20 +02:00
adminandClaude Opus 5 328f978d3c Set gravity survives a re-read of the model during play: World.setSceneProp remembers what the run itself set on the scene and syncFromModel lays it back over the copied scene props, so a project event mid-play no longer resets the gravity to the saved 980; the unit test re-reads the model mid-run and e2e 41c forces a project event right after play starts (#147)
game-maker / gate (push) Successful in 1m46s
game-maker / suite (push) Failing after 5m35s
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 20:08:09 +02:00
adminandClaude Opus 5 0ff3c8b742 Physics stage 1b: six new nodes act on dynamic bodies in play (Apply force over the frame, independent of the frame rate, Apply impulse, Set velocity, Set angular velocity, Get velocity, Set gravity for the rest of the run), a node on an object without a dynamic body and moving a dynamic body directly each log a hint once per object, and Move with collision now pushes dynamic bodies with a mass-dependent push while the mover stays flush; Move keeps its own move-and-slide instead of Rapier's character controller, which measurably snags on seams between colliders (#147)
game-maker / gate (push) Successful in 1m46s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 19:19:21 +02:00
adminandClaude Opus 5 78899b1ace Physics stage 1a runs on Rapier: a new Rigidbody child object (body type, mass, gravity scale, damping, fixed rotation, CCD) makes its parent fall, bounce and come to rest in play, colliders gain friction, bounciness and density, the scene gains gravity (0, 980), the new PhysicsSystem steps at a fixed 60 Hz with interpolation in world coordinates and treats a tilemap as static ground, On collision enter gains normal and impulse, play waits for Rapier and does not start without it, and the editor run keeps the old CollisionSystem; the existing collision tests run against both systems unchanged (#146)
game-maker / gate (push) Successful in 1m46s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 18:11:43 +02:00
adminandClaude Opus 5 d02bcca266 Rapier 2D (@dimforge/rapier2d-compat 0.20) comes in as the physics engine: the editor loads it once in the background right after opening a project from its own chunk, so the main bundle grows by 0.19 KB gzip and the first frame does not wait; loadPhysics, physicsStatus and the 100 px = 1 m conversion live in src/runtime/physics/engine.ts, __gm.physics() reports the state, unit tests pin free fall and a box resting on a box, and e2e module 41 pins that Rapier is ready from its own chunk without console noise (#145)
game-maker / gate (push) Successful in 1m46s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 16:56:47 +02:00
adminandClaude Opus 5 6d7d0005cf The tab headers are one TabHeader, the node board and the tile board pan and zoom through one helper, reordering tile pictures and tilemap layers goes through one moveItem, and a tilemap cell is one named type (#85)
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 16:01:12 +02:00
adminandClaude Opus 5 c91c18f495 The loader keeps no migrations any more: an asset of the old type autotile (before #131) is an unknown type and dropped, and a tilemap layer with the cell map of the first version (before #134) loads empty; every project is saved in the current format, and the two tests now pin that the old shapes are not read (#137)
game-maker / gate (push) Successful in 1m49s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 15:12:07 +02:00
adminandClaude Opus 5 bffa508ee7 A tile gains Collision scale: below 1 each blocking cell pulls in on the sides without a blocking neighbour and stays flush towards its neighbours, so a wall of bushes becomes a narrower wall without gaps and the inner corner of an L closes cleanly; above 1 the cell grows at its open sides; on several layers the largest value counts, and the merged rectangles work in fractions of a cell with exactly the old result at 1 (#140)
game-maker / gate (push) Successful in 1m43s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 15:00:07 +02:00
adminandClaude Opus 5 4728f4fab5 A placed tilemap grows and shrinks at every edge: the new GRID EDGES block in the inspector adds or removes one column or row at Left, Top, Right or Bottom as one undo step, shifting the cells of all layers and moving the placement through its own matrix so the content stays in place on screen; removed painted cells are kept outside the grid and return when the edge grows again, and the Columns and Rows fields of a placement keep the content in place too (#136)
game-maker / gate (push) Successful in 1m43s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 13:58:03 +02:00
adminandClaude Opus 5 0b32d3cbf3 The tilemap panel gains Fill and Pick: Fill floods the connected cells of the active layer that carry the same tile (edge neighbours only, bounded by the grid) as one undo step, Pick takes the tile of the clicked cell on the active layer, and holding Alt picks while any tool is active (#133)
game-maker / gate (push) Successful in 1m41s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 12:31:19 +02:00
adminandClaude Opus 5 c2fd536aaf The texture field only offers pictures: each texture with its frames, no animations any more; an animation id left in an older project shows as a missing reference (#143)
game-maker / gate (push) Successful in 1m40s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 12:14:01 +02:00
adminandClaude Opus 5 5046ddb810 The tilemap painting tools move out of the inspector into their own panel beside the scene view, shown only while exactly one placed tilemap is selected in the scene tab; the free viewports keep their content in place on screen when they are resized (#142)
game-maker / gate (push) Canceled after 0s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 11:46:23 +02:00
adminandClaude Opus 5 f53279d065 The active tilemap layer can be renamed from the painting section, and a Show setting fades or hides the other layers in the scene view while the tilemap is selected (#138)
game-maker / gate (push) Successful in 1m40s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 10:56:32 +02:00
adminandClaude Opus 5 bfbcbe604c The tile list in the tilemap section is a palette of pictures: each tile shows its lone tile (the four convex corners for floor and wall, the picture itself for none) with its name below, laid out with the image-picker grid (#139)
game-maker / gate (push) Successful in 1m41s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 10:15:51 +02:00
adminandClaude Opus 5 4c411c1ff3 Tilemaps can block movement: a tile gains a Solid switch, the solid cells of all layers are merged into rectangles and the placed tilemap takes part in the collision system as one body, reported as other in collision events (#132)
game-maker / gate (push) Successful in 1m41s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 09:47:03 +02:00
adminandClaude Opus 5 10b49fac46 Tilemap cells are stored compactly in the project file: each layer keeps a tile list, an origin and one run-length encoded string per row; older projects with a cell map still load (#134)
game-maker / gate (push) Successful in 1m40s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 09:17:49 +02:00
adminandClaude Opus 5 732f6518ae The autotile asset is renamed to tile and gains a plain None (1 × 1) kind, which is now the default; older projects load their autotiles as floor tiles (#131)
game-maker / gate (push) Successful in 1m40s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 08:01:07 +02:00
adminandClaude Opus 5 a65132bb5a Scrolling content is narrowed by the scrollbar width while the scrollbar is shown, so it no longer sits under the bar
game-maker / gate (push) Successful in 1m38s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 07:29:58 +02:00
adminandClaude Opus 5 91cdaf95cc The panel frame is drawn above the content, so a hovered row no longer paints over the border
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 07:29:58 +02:00
adminandClaude Opus 5 55bfa7521a The assets and scene objects panels in the left column are split by a draggable splitter that keeps its ratio when the window is resized
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 07:29:58 +02:00
adminandClaude Opus 5 33a7b1b63e Tilemaps are a new placeable asset type that is painted with autotiles in the scene view, with layers, brush, eraser and rectangle, and is drawn at runtime and in the export (#128)
game-maker / gate (push) Successful in 1m38s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-18 06:41:47 +02:00
adminandClaude Opus 5 0607221423 Autotile floor tiles take their inner quadrants rotated by half a tile and their inner corners from the upper right block tile, matching RPG Maker MZ (#118)
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The corner tables are now derived from rmmz_core.js (Tilemap._addAutotile,
FLOOR_AUTOTILE_TABLE, WALL_AUTOTILE_TABLE): the fill quadrants are taken
rotated by half a tile so that neighbouring tiles meet with the quarters that
sit next to each other on the sheet, and the inner corners come from the upper
right tile of the block, not the upper left one. A test pins the model against
both MZ tables, generated from rmmz_core.js rather than typed out.

The animation check in e2e module 39 read its four pixels one by one and could
straddle a frame change; step and pixels are now read in a single call.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 22:28:11 +02:00
adminandClaude Opus 5 1a9f07c4ac Autotiles are a new asset type with a tab that shows every tile of the floor (2x3) or wall (2x2) block and an animated sample pattern (#118)
game-maker / gate (push) Successful in 1m50s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 21:35:29 +02:00
adminandClaude Opus 5 c17b2b5426 Plugins are switched on and off in a Plugins tab, the server keeps the state in data/plugins/plugins.json, and switched-off plugins are never delivered (#114)
game-maker / gate (push) Successful in 1m38s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 20:15:51 +02:00
adminandClaude Opus 5 57a97ba94f Plugins in data/plugins are loaded at startup and can add a tab with a read-only node board, and the demo plugin shows every asset as a node (#113)
game-maker / gate (push) Successful in 1m38s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 19:00:03 +02:00
adminandClaude Opus 5 2a390e52ff The scene view and the animation preview share one camera, the three form dialogs one base, and keys are found through one set of helpers (#85)
game-maker / gate (push) Successful in 1m36s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 14:19:53 +02:00
adminandClaude Opus 5 bf02c9e8b3 Timeline keys can be copied and pasted at the playhead, duplicated with Ctrl+drag, and frames inserted or removed from a right-click menu (#102)
game-maker / gate (push) Successful in 1m34s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 12:53:56 +02:00
adminandClaude Opus 5 195fc94e08 Animations blend out on Stop and at the end of Once (reset), and Play can restart a running animation (#106)
game-maker / gate (push) Successful in 1m33s
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Stop animation gets a blend (s) port that fades the animation back to what
lies underneath. Play animation gets blend out (s) for Once (reset) and a
restart port that starts a running, paused or fading animation from frame 0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 11:50:10 +02:00
adminandClaude Opus 5 8a377d9239 Play animation's blend is given in seconds, not in frames of the new animation (#106)
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 11:14:15 +02:00
adminandClaude Opus 5 04dc254b3d Play animation can blend into the new animation over a number of frames (#106)
game-maker / gate (push) Successful in 1m33s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 10:03:53 +02:00
adminandClaude Opus 5 beeea355d9 Animation rows can target behavior variables and shader parameters (#104)
game-maker / gate (push) Successful in 1m33s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 09:04:29 +02:00
adminandClaude Opus 5 b278605c53 Keys carry an easing for the span to the next key: linear, step, ease in, ease out, ease in-out (#101)
game-maker / gate (push) Successful in 1m32s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 07:27:44 +02:00
adminandClaude Opus 5 4c92a9478f The animation tab's Fit frames the preview, and the separate Centre button is gone (#111)
game-maker / gate (push) Successful in 1m32s
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 07:12:21 +02:00
adminandClaude Opus 5 cc14988338 Ping-pong turns on the last key, and stepped rows hold the key they last passed (#112)
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 07:08:44 +02:00
adminandClaude Opus 5 f68941fa3a An animation reaches the scene's own background and objects inside placed containers (#109)
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 06:48:21 +02:00
adminandClaude Opus 5 353b348c3c e2e module 25 drives the animation timeline and its preview with real gestures (#110)
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Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-17 06:16:40 +02:00
adminandClaude Fable 5.1 89c1d6130c README: 928 editor checks, measured in CI-69
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-16 21:31:50 +02:00
adminandClaude Fable 5.1 35c87888b0 The list's kind check counts the animation kind, which is a row in the kind table since #97
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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-16 21:25:46 +02:00
adminandClaude Fable 5.1 89c46c30a0 An animation is previewed above its timeline: the root at the playhead, drawn but never written (#99)
game-maker / gate (push) Successful in 1m47s
game-maker / suite (push) Failing after 4m55s
The Animation tab shows the root asset over the timeline, with every row's value at the
playhead written onto a copy of it – the sprite, text or container placed at the origin as a
scene would place it, a scene as itself. Rows reach the root through that placed object and its
children through the object's instance edits, the route a placed container's content takes,
so the ids match what the runtime gives them. The runtime player and the preview evaluate a row
through one function (trackWriteAt), relative rows included; past the end of a once-reset pass
the preview shows the starting values, as the player would. Play, pause and the ruler drive the
preview through the timeline's playhead; a drag pans, the wheel zooms, Centre frames it. The
document is never touched and undo never hears of scrubbing.

On animation finished no longer describes itself as hearing "a sprite of the owner".

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-16 21:00:18 +02:00
adminandClaude Opus 5 4ed2edd0f0 An animation is a value a graph can pick, and playing a running one makes it win again (#97)
Play, Pause and Stop animation take the animation on a port instead of a
fixed setting, fed by the new Animation literal or a list item tagged
`$animation`. Playing an animation already running keeps its frame but
counts it as started last, so turning back to a walk that never stopped
shows that walk. The actor demo walks through one Play animation over
`ItemAt(walk, facing)` again and stops every animation to stand.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 20:47:31 +02:00
adminandClaude Opus 5 5af0a1c83a An animation's rows are edited on a timeline: double click sets a key, keys are banded, dragged and deleted, the ruler scrubs (#98)
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 20:38:34 +02:00
adminandClaude Opus 5 193378e6a9 An animation is a timeline of rows over one asset, played on an object rather than worn as a picture (#97)
Part (a) of the animation rework: model, commands, saving, runtime and nodes.

- AnimationAsset holds a root (sprite, text, container or scene) and rows; a row keys one
  property of the root or of an object inside it, keys sit on whole frames.
- The last key decides the length (its frame counts as a frame of its own). The playhead runs
  between frames, so numbers and colors blend every tick even at 10 fps; everything else holds.
- Playback gains `once-reset`, which puts back what was there before the start. A row can be
  relative, adding to where its target stood.
- Play / Pause / Stop animation act on an object; each instance plays on its own, the later
  start wins on a shared property, and a behavior writing the same property still writes last.
- A sprite no longer wears an animation through `texture`. "Create animation from texture"
  builds a sprite plus a texture row keyed frame by frame instead.
- The Animation tab shows a placeholder until the timeline editor (part b) lands.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 20:02:25 +02:00
adminandClaude Opus 5 d3563897d8 Two compilers that walk a graph the same way walk it through one emitter (#85)
game-maker / suite (push) Failing after 2m22s
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Refactoring round two: the particle and shader compilers share emitGraph.ts (cycle detection,
duplicate names, emit order) and keep only their rules. FontLibrary and TextureLibrary sit on
FileLibrary (base URL, loading/failed bookkeeping, listeners); SoundLibrary keeps its own
contract. The three Create*Command share ImportFileCommand, the three renames share
RenameCommand - class names stay. bandBounds() in framing.ts and portNameField() in
portSection.ts replace in-file clones, and three comments that told history now state the rule.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 19:28:28 +02:00
adminandClaude Opus 5 bf0be66c9d A frame with borders tiles unless told to stretch
game-maker / gate (push) Successful in 1m32s
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The fill of a sliced frame defaulted to `Stretch`. It is `Repeat` now, and the Fill dropdown lists
`Repeat` first.

The saved document keeps writing only the fill that differs from the default, so the key it
carries is now `stretch`, and a frame without it repeats. A frame saved before with the key
absent and meaning stretch would therefore tile; none of the stored projects has one - both sliced
frames on the server carry `fill: "repeat"` explicitly, so they draw as before.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 18:13:11 +02:00
adminandClaude Opus 5 94a0a578ed A border drawn in pixels is as wide as the texture says a pixel is, so a small sheet can frame a large sprite (#96)
A sliced frame drew its borders one source pixel to one sprite unit. Pixel-art sheets are small:
a 16px corner on a 400-unit button is a thin line, and the only way around it was a larger image.

The texture now carries `Nine-slice scale` (default 1), next to `Filter`. It sets how many sprite
units one border pixel takes, for every sliced frame of that texture. The UVs stay as they are -
a corner shows the same pixels, only larger or smaller. When the sprite is too small for both
borders they are still scaled down together, now starting from the scaled size. With `Repeat`
the tile size scales too, otherwise a doubled border would sit beside a pattern of the old size.

The value is a schema row, so inspector field, saving and undo come without their own code.
Anything that is not a size above 0 reads as 1, and documents without it draw as before.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 18:09:43 +02:00
adminandClaude Fable 5.1 cc6db5f350 Three stores, three importers and three pickers that differ only in their type are one of each (#85)
game-maker / gate (push) Successful in 1m33s
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Refactoring round one: HttpFontStore/HttpSoundStore/HttpTextureStore collapse into a generic
HttpFileStore over a FileStore contract; fontImport/soundImport/textureImport share assetImport
with an ImportKind per sort; ImagePicker/FontPicker/SoundPicker sit on FilePicker and describe
only their row. The group/comment drag logic leaves GraphCanvas for annotationDrag.ts (with its
own unit test), declaredRows.ts replaces the duplicated row build in particles.ts and shaders.ts,
and dead code in font/sound/compile/emission/transform/actions is gone. README: asset list,
check count 958, the two-job CI, the Scenes wiki page.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-16 17:38:54 +02:00
adminandClaude Opus 5 15bdfdf07a A gate that stands in front of the suite delays the news it carries, so it runs beside it (#94)
game-maker / gate (push) Successful in 1m29s
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The workflow ran everything in one job: check.sh, then build, then the e2e suite and the smokes.
The runner has two job slots and four cores, so the second slot lay idle for the whole run, and a
lint error was reported only after the full suite had passed in front of it - six minutes instead
of one.

Now `gate` and `suite` are two jobs without `needs:`. They start together, both have to pass.

The price is contention: while the gate runs, vitest and chromium share four cores, and the suite
measures text widths and frame counts, which a loaded machine reports differently. The gate
therefore caps vitest at two workers via GM_TEST_WORKERS, so two cores stay free for the browser
over the whole overlap. Locally the variable is unset and nothing changes.

Measured before the push: the cap costs vitest 4.4s (16.6s -> 21.0s), check.sh exits 0 with it,
build ok. Whether the split is worth it is a question for the runner - the expected net gain is
about 50s, and the acceptance is a measurement over at least two runs.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 15:21:18 +02:00
adminandClaude Opus 5 36ccc7626f A box drawn around a part of the graph is part of it, so a fit frames it and a band catches it (#95)
game-maker / suite (push) Successful in 6m22s
Fit measured the nodes alone: a group drawn around them was cut off, and a graph holding nothing
but a comment framed the empty origin. It now frames both sorts together.

The rubber band ignored boxes entirely. It catches them now, into the *same* selection as the
nodes — `nodeIds` and `annotationIds` side by side — so one drag moves all of it, one Delete
removes all of it, and one undo takes it back. A box counts only when the band holds all of it,
where a node counts on touching: a group wraps the nodes it holds and therefore overlaps every
band drawn over any of them, and since it drags those nodes along, catching it by accident would
be felt at once.

A node inside a selected group is moved once, not twice — `travellers()` collects everything one
gesture carries and lets each thing appear in it a single time.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 14:23:56 +02:00
adminandClaude Opus 5 be8f2331de A frame that keeps its corners can be stretched to any size (#41)
game-maker / suite (push) Successful in 6m21s
TextureFrame carries optional `border` (left/right/top/bottom) and
`fill` (stretch | repeat); absent keys mean "not sliced", so no format
bump and undo restores the plain frame instead of four zeroes.

The sliced sprite builds its own geometry instead of the shared
UNIT_QUAD: a 4x4 grid, and for `repeat` one quad per tile carrying the
frame cell's real UVs -- tiling in the geometry, not in the sampler, so
a frame out of a sheet cannot pull its neighbour in. Above 64 tiles per
axis it stretches, to bound the buffer.

A sprite narrower than left+right scales both borders down together
until the middle is exactly 0, so the corners meet at a seam and never
overlap.

The texture editor gets four draggable border lines plus the same four
numbers in the inspector. Hit order is resize handles, then the lines,
then the frame body -- handleAt reports 'move' anywhere inside a frame,
so lines placed after it were unreachable.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 12:04:09 +02:00
adminandClaude Opus 5 b9f1a9d319 A graph that grew past one screen needs somewhere to say what a part of it is for (#38)
game-maker / suite (push) Successful in 6m13s
The graph could hold any number of nodes and said nothing about which of them
belonged together. Groups and comments are two separate things, as decided in
the issue: a group is a titled box that carries the nodes it encloses, a
comment is free text that carries nothing.

Both live as optional arrays on Graph, not as registry nodes. A comment that
were a real node would run through the interpreter, show up in the drop
palettes and be compiled into a shader — the wrong place for a piece of text.
As arrays on Graph they exist in all four graph kinds at once, and a document
without them means exactly "no groups", so no format bump.

Membership is computed when the box is grabbed, never stored: the center of a
node inside the box travels with it, and a node dragged out is simply out. A
box inside a box travels with the outer one, its own nodes included. A group
is grabbed by its title bar only — its body stays transparent to the pointer,
or a rubber band could never be drawn across the nodes it holds. Deleting a
box deletes the box; the nodes stay where they are, because a box that
silently took ten nodes with it would be the most expensive surprise in the
feature.

The color is a free picker, and the title color follows from it: relative
luminance per WCAG, threshold at 0.179 where the two contrast ratios meet —
not 0.5, which would pick white on mid grey where black reads better.

Resizing snaps the far edge to the grid, not the width, so the corner that is
not being dragged stays put. The minimum size rises in whole steps for that
reason: 80 is no multiple of 24, so a box squeezed to the stop would have sat
off-grid in exactly the mode meant to keep it on.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-16 11:24:34 +02:00