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>
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>
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>
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>
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>
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>
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>
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>
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>
Set state and State branch derived their ports from the graph, so a machine
that came out of a variable or a list had no ports at all: nothing to set,
nowhere to branch. It could be passed around but not operated.
stateByName() resolves id first, then name; a name two states carry answers
with nothing, the same rule transitionTo already follows for two transitions
of one name — without something in the graph that decides between them, any
pick would be a guess.
Set state by name takes the machine and a text, and has a second exec output
not found, so a typo is not swallowed in silence. State branch gains a
derived else that fires whenever no state output matches — no state set, a
state of another machine, or a machine that arrives as a value and therefore
has no state outputs at all. A flow that enters State branch now always
leaves it somewhere.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
#63: a shader Property node named "width" quietly took over the sprite
row of the same name. isSpriteProp lives in PropertySchema now and is
derived from FULL_SCHEMAS.sprite instead of being a second list that
drifts. isValidPropertyName rejects those ten names, and the compiler
reports it at the node as its own problem: "width" is a sprite
property, told apart from "not a word" and from a duplicate.
#64: Divide emitted (a / b) and handed NaN to the driver. It emits
divide(a, b) now, with the guard in the prologue next to straight(),
scalar and per channel: zero divided by zero is zero. That was already
the house rule in the behavior and particle graphs - only the shader
had never been told. Clamp comes along as a shader node for the same
reason: the behavior catalog has had it all along.
Load scene sets a flag on the World like Stop and Restart do; the swap
happens after the tick, and the last wish of a tick wins. Exactly one
thing crosses over: the SharedState, so global variables and global
machines keep what they know while everything local is built anew.
Loading the scene that is already running rebuilds it, which is what
"reset the level" means when the score must survive.
A run starts either from the start scene (a new project field, set from
the asset panel and marked with an arrow in the list) or from whatever
scene is open. The toggle next to Play says which question is asked and
remembers the answer in localStorage: it is a way of working, not part
of the game.
Sounds no longer end because a scene ends. A voice belongs to the
behavior that started it and stops right after On destroy, so the scene
swap is no longer a special case at all. For the enemy that plays its
explosion and destroys itself in the same breath there is now a
detached input on Play sound.
The scene selector stays usable while a run plays, because a double
click in the asset panel already did the same thing unguarded. It moves
what the editor looks at, not what the run plays.
Sounds follow the road fonts already paved: the file goes to the server
content-addressed under its sha256, the project keeps a named asset that
points at it, and nothing is ever re-encoded. The format is read from the
file's own signature, not from what the browser claims - the same .m4a
arrives as audio/mp4, audio/x-m4a or as nothing at all.
Playing is two nodes. "Play sound" takes the asset and may raise or lower
its volume; every call is its own voice, so two jumps in a row are two
jumps heard. Its loop input is a choice of three - from the asset, on,
off - because a checkbox has to spend one of its two positions on "not
set" and would lose a case: an asset that loops could then never be
played once.
Below the graph core stays browser-free: NodeContext hands out an asset
id, BehaviorSystem resolves it against the project and folds the asset's
own volume and loop into the call, and only viewport/SoundLibrary knows
about Web Audio. A run without a sink plays nothing instead of throwing.
The CI browser is muted, so the ear is no witness: the debug hook counts
started and stopped voices, and step 34 reads that counter.
Four issues that all reach for the same line: how the current state is
read and written. Splitting them into four commits would mean four
states of the tree that do not compile, so they arrive together.
#55 start state — the machine asset carries an optional `start` holding
a State node's id. Right-click a state to set or remove it, a ring in
the node's title says which one it is. A dead id (the state was deleted)
reads as "no start", so nothing has to clean up after a deletion.
#53 entered/exited — `On state entered` and `On state exited`, one exec
output per state. Every change now goes through a single `setState`
that reports it; BehaviorSystem delivers it after the exec flow that
caused it, `exited` of the old before `entered` of the new, round after
round until the queue is empty, with a cap that stops a ping-pong graph
with an endless-loop error. A local machine tells the instance that
switched, a global one tells every instance holding a matching event
node. The start state fires `entered` too: per instance for a local
machine, once per run for a global one.
#57 reading — `Current state` with `name` for showing and `id` for
comparing, `Is in state` with one boolean per state. Neither has a
`run`, so `read` learned `def` and `lookup`, and the catalog test knows
this third kind of node.
#54 seeing it — during a run the state machine tab marks every state
some instance is holding faintly, and the one held by the selected
scene object's instance strongly.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
`Sqrt` already exists in the behavior graph (`data/Sqrt.ts`) and in particles
(`ParticleSqrt`); the shader was the only graph without it. `Pow` with exponent
0.5 does the same job, so this is convenience, not a missing capability -- a
radial falloff no longer needs a node whose purpose has to be read off its
parameter.
Like `Pow` it cannot go through `unary()`: GLSL leaves `sqrt` undefined below 0,
so the value is held there with `max(value, 0.0)`. That form takes a float
second argument for a `vec3` too, so unlike `pow` the exponent broadcast has no
counterpart here.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This reverses the design of the previous commit. `PropertyDef.scope` is gone
without replacement: a behavior variable is an object property again, without
exception, and sharing is something you point at rather than something you
declare twice.
A **Variables asset** is declarations and nothing else -- no graph, no position,
never placed, no tab of its own (`TAB_OF_ASSET` is already `Partial<>`, so that
costs no line). A `Variables` node names one through its new `variablesAsset`
setting, empty meaning the behavior's own variables as before, and then reads
and writes one value per key for the whole run. Its property list follows the
chosen source, which was the actual request: a value another graph declared is
now offerable, where before every participant had to declare the name itself.
That deletes more than it adds (-72 lines net): `globalConflicts` and its
run-stopping kind clash, `SetVariableScopeCommand`, the scope picker, both
object-inspector filters and the "shared by the whole run" note on the placed
object. A typo is no longer a silent second variable -- naming an asset is
picking from a list. And two Variables assets may carry the same key without
meeting, because the asset is the key, not the name. The one shape it copies is
the one that already existed: `Set state` picks its machine the same way.
Lifetime is unchanged. The bag is built at `BehaviorSystem.start()` from the
declarations and never written back, so playing in the editor cannot change the
project -- which is the whole reason a counter must not be an object property
(`World.syncToModel` would `commit()` it, and the coin counter would stand at 7
for good).
Full symmetry across that gap, without mirroring anything. Two named wires:
`Inspector.liveVariables` shows the values as they stand while a run is on and
falls back to the declarations when it ends, and `adoptDeclarations()` takes a
key into the run *only where the document changed it since the last sync*.
Without that condition any unrelated project edit would snap a running counter
back to its starting value; a counter-test bends exactly that and falls over.
Nothing was ever cached, incidentally: `GraphInterpreter` only pulse-caches
nodes without a `read`, and the variable node has one. The wire was missing.
The state machine `Scope` row is now an ordinary `enum` row through
`createFieldRow`. It was hand-built from an `HStack` with a ghost dropdown and
began ~34px left of every value above it; the explanations beside `Local` and
`Global` are gone from the menu, the sentence below the row keeps saying it.
Machine scope is otherwise untouched -- `StateMachineAsset.scope`,
`SetMachineScopeCommand`, `stateBag()` and its persistence all stand, so #59
stays closed as built and `Scope` as a type now carries machines alone.
Six counter-proofs, each biting at its own guard. One of them did not bite at
first: the suggestion list was computed twice, in `nodeSection` and
`portSection`, so only the browser test covered the request itself. It is one
named function now, `variableChoices`, with a unit test of its own.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A variable or a state machine declared `global` keeps one value for the whole
run instead of one per behavior instance. The scope sits on the declaration --
`PropertyDef.scope` and `StateMachineAsset.scope`, both optional, absence
meaning `local` -- and `local` is never written, so every project made before
this saves back unchanged.
**The name is the key.** Two behaviors declaring a global `score` mean one
variable; a behavior declaring `score` locally keeps its own. Kinds that
disagree about one global name stop the run before it starts, with the two
behaviors named; starting values that disagree are a warning on the behavior
that declares it, and the first declaration wins (`globalConflicts`).
The runtime needs no redirection layer. A global variable falls out of
`schemaForObject`, so it never reaches `entity.props` -- and then the whole rule
is "whoever declares the name takes their own value" (`graph/sharedState.ts`).
The `Variables` node is untouched and stays transparent: switching a variable to
global breaks no existing graph, because `GraphInterpreter.readAll` builds a
fresh object per read anyway and only asks `port.key in all`.
That same cut answers the inspector. A shared value has no owner, so the placed
object shows no row for it and can hold no override -- `SetVariableScopeCommand`
takes the deviations that were there and undo gives them back.
Both places say it in words rather than leaving a glyph to be guessed: the
declaration explains the mark below the list, and the placed object names the
variable it no longer holds instead of claiming the behavior declares none --
which is what it said before, untruthfully. Screenshots of the e2e run turned
that up; no check had been looking at it.
`SharedState` hangs off `NodeContext`, is built in `BehaviorSystem.start()` from
the *declarations* rather than from any instance (a global variable exists
before its behavior is placed), and is thrown away with the run: nothing is
written back, not even in the editor run. `GraphInterpreter.call` passes it on
through `...ctx` while nested calls keep getting fresh local variables, which is
why `program.defaults` is stripped of global keys.
Two traps this hit. `defSignature`/`assetSignature` have to carry the scope or
the inspector does not rebuild after the switch -- and a state machine has no
rows at all, so its scope is appended to the signature by hand. And the object
inspector does not go through `schemaForObject` for behaviors, it reads
`asset.variables` directly; filtering in one place was not enough, and no unit
test covered that path. The e2e caught it (`global: true` where false belonged),
and the rule now lives in one named function, `objectRows`.
Scopes `object` and `scene` are deliberately not built. The object case already
has a route (`Object by name` -> `Properties`), and a run knows exactly one
scene, so `scene` would be indistinguishable from `global` until #39 exists.
Closes#59: a machine's scope is a word on the machine asset, not a setting per
`Set state` node, so the same machine cannot live in two places at once.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
`deserializeProject` builds each asset's effective schema in pass 1 and coerces
`props` against it in pass 2. For a behavior that schema was
`[...COMMON_PROPS, ...variables]` -- but `runInEditor` lives in
`ASSET_SCHEMAS.behavior`, not in `COMMON_PROPS`, so `normalizeBag` dropped the
value as undeclared. The flag therefore survived no save: every reload switched
it back off.
The fix is the full schema, `schemaFor('behavior')`, which is what
`schemaForAsset` hands out everywhere else.
Found by a round-trip test comparing the whole project rather than one field. An
existing test had the loss written down as its expectation
(`{ enabled, speed }`), which is why nothing ever reported it.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A state keeps its `in`/`out` exec pins in the model and the editor never draws
them. That is the whole trick: connecting, undo, deleting a state and saving all
keep working untouched, because `normalizeGraph` filters nodes and never edges,
and no edge ever checks its port key against a NodeDef. Only two places change --
`NodeView.redraw` stops drawing the row, and `portAt` refuses to hand one out, so
an invisible pin cannot be grabbed either.
Transitions are drawn by right-clicking a state, `Make transition`, then clicking
the target. The armed mode takes the same shape as a live drag, so the existing
preview draws it with no second code path, and it dies with Escape, a click on
empty canvas or a switch to another asset.
Removing the pins removed the only handle a transition had: edges have no
hit-test anywhere, and the pin right-click was the sole route to Disconnect.
The inspector's TRANSITIONS OUT / TRANSITIONS IN lists are therefore not a
convenience, they are the delete path.
`GraphEdge` gained an optional `label`, which `normalizeGraph` has to pass
through explicitly or a saved name is dropped on load. `State transition`
replaces `Next state`: it takes the machine on an input port and the name from a
picker, and resolves against the *current* state. Names are deliberately not
unique across a machine -- two states may both have an `alarm` -- so a node named
`alarm` moves whichever state has one, and an empty name follows the single
unnamed edge.
The geometry moved to a Pixi-free `transitions.ts`: a gap to the box border, and
a fan that puts a pair of opposite edges beside each other instead of on top of
each other. Keeping it as plain maths is what let a screenshot bug become a unit
test -- an earlier pin-to-pin line ran under the target node and took its
arrowhead with it, because `nodeLayer` sits above `edgeLayer`.
One limit stands and is not fixed here: `ConnectCommand` rejects a second edge
between the same two states ("Already connected"), because every transition
hangs off the same two ports. With names, `A --alarm--> B` beside
`A --seen--> B` is a sensible pair, so this is worth its own issue.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Four ways erase a derived port and take no edge with them: deleting a state,
deleting the `State machine` literal, deleting `Behavior start`/`end`, deleting
the asset. The common cause is `RemoveNodeCommand` clearing only its own graph,
so the fix sits in `drawnDef` (graph/nested.ts) and touches no delete site.
A right-click on an edge goes through `view.portAt` only — there is no curve
hit-test. Without a port row such an edge is not merely invisible, it is
unreachable, so the ghost row is the handle Disconnect hangs on.
`resolveDef` stays untouched: it is the truth for interpreter, compiler,
ConnectCommand and dropTarget, so nothing runs or connects through a ghost
without a second guard.
A particle source can wear a shader asset the way a sprite does, and it is the
cheapest place in the editor to wear one: a shaded sprite gives up its batch and
costs a draw call of its own, while `ParticleContainerPipe` breaks the batch for
every field regardless. Five hundred shaded particles are the one call five
hundred plain ones were.
The fragment the compiler emits needed no change, only a second vertex stage:
Pixi's particle vertex is GLSL ES 1.00 and ours is ES 3.00, so it is translated
rather than invented. What it sees is a particle's picture, not its life — the
buffer carries five fixed attributes and takes no sixth, so age, index and seed
stay on the graph, which is what the graph is for.
Two things the issue did not ask about:
`Shader.resources` is an accessor over the names its constructor declared, so a
slot that is not declared becomes a loose JS property and is never bound. The
adaptor writes `uTranslationMatrix` into whichever shader the container names —
without an empty block for it the vertex gets no matrix and the particles land
elsewhere.
`schemaOf` in serialize.ts hung on `schema !== schemaFor('sprite')`, an identity
check a source never satisfies, so its shader values would have been dropped on
save.
A source is the one asset drawing rows from two graphs, so a name can arrive
twice. Its own row wins and the uniform keeps its default; nothing is rejected
on the shader's side, because the collision exists only at this one wearer.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Particle age and shader time each read performance.now() off their own
library, and the world got the frame's delta straight from the ticker. Three
clocks, so a global time scale would have been three multiplications and a
pause three separate freezes.
core/time.ts holds one clock instead: it accumulates dt x scale per frame
rather than reading the wall clock, and Editor.tick hands the very step it
took to the play session, the editor run and the animation preview. Delta
time, particle age, shader time and that preview are the same quantity now,
so the scale is a single multiplication and a pause is that scale at 0 —
nothing underneath needs rebasing, because the clock itself stands still.
The Math.min(dt, 0.1) caps in PlaySession and EditorRun are gone: the cap
(MAX_FRAME) now sits on the raw frame before scaling, and capping twice would
make the world run slower than the particles at scale 2.
A pause gates the scale rather than overwriting it — effectiveScale() answers
0 while paused, and for anything that is not a positive finite number, while
gameClock.scale keeps its value. A slider later survives a pause that way;
the issue asks for none yet.
The clock goes back to zero at both ends of a run, so a run is reproducible
from second 0 and the scene view looks freshly loaded after Stop. Resetting
only on Stop would not do it: the editor clock runs on afterwards, and the
next Play would start at "seconds since the last Stop".
The trap in that: ParticleField keeps its origin as an absolute second of
this clock, so after a reset it lies in the future and every particle would
age backwards. One line in sync() starts such a field over, which covers the
scene, the game and the tab preview at once — and fixes an older bug of the
same shape, where releasing a particleTime() freeze left the preview empty
for good.
Found while measuring that: ParticlePreview stood at second 0.5 by computing
the clock reading that would mean 0.5 since the field started. Over 200000
random origins the round trip misses the last bit in 18.8% of them and shows
one particle too few in 9.4%, because floor(0.5 * 20) comes out 9. The check
had been flaky since it was written. The panel hands the field the age itself
now (ParticleField.hold), and the faked clock is gone.
833 checks (824 + 9), 931 unit tests (921 + 10).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Behavior and Container draw an icon because isSymbolType() is true for them,
but that predicate does not mean "draws an icon" — it means "is editor
decoration". Four places read it that way: collectWorldItems, GameViewport.
collectFrame and syncDrawOrder all drop symbols out of the running world and
the game picture, and placementOf() gives them an upright unscaled box.
Listing 'particles' there would have handed the source an icon and taken away
its particles, in the scene view as well as in the game.
So the two questions are two functions now. hasSceneIcon() says a type draws
an icon; isSymbolType() keeps meaning decoration. The icon itself is a
SceneViewport decoration, which is editor-only for free because GameViewport
never syncs decorations.
A ring (r 10, #c26a1f) with four sparks, upright and unscaled like the other
symbols, its middle left open — unlike Behavior and Container a source draws
something of its own, and the field is densest exactly there. The name sits
beside it and a dashed line runs to the parent, same colour.
Found while writing the tests: the source's grab box scaled with its transform
while the icon did not, so the two came apart. placementOf() returns only the
translation for 'particles', making the box the upright 24 x 24 that covers
its icon. The source's own transform still feeds every particle untouched.
824 checks (821 + 3).
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Speed and Prewarm are not state and not a second loop: both are arithmetic
on the clock argument the field already passes to every particle formula.
fieldTime = elapsed * timeScale + prewarmOffset, a pure rule next to
liveRange, called at the one place ParticleField.sync forms its time, so
preview and world inherit it together.
Prewarm offsets by one lifetime because that is the smallest offset which
fills a continuous emitter; a burst is dead at time >= lifetime, so the
same offset would skip it entirely and it is suppressed there.
The tab's slider counts wall-clock seconds, so its span divides by the
scale. A missing row falls back to 1 / off, so old project files need no
migration.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The asset type `particles` is placeable and carries a graph at the same time —
`behavior` was the blueprint. Because a continuous emitter gives birth to particle n
at time n/rate, the whole field is a function of the clock rather than of the frames:
no ring-buffer bookkeeping, exact time jumps, reproducibility as a measurable property.
compile.ts follows compileShader's frame but emits JS closures into a Float64Array
instead of GLSL, and without eval; a node with two consumers is evaluated once.
Drawing is one Pixi ParticleContainer per source, so one draw call.
Collision, wind and braking in flight are out for good — that is the price of the
formula model, not an omission.
The tab count goes from nine to ten, which is exactly the case #84 was built for one
day earlier: at 1280 px the row no longer holds every tab, so guard 14b now asks for
hidden.length > 0 instead of === 0.
The default of the Edge param and the address mode the shared sheet physically
carries were the same constant; changing the value would have turned every
sentinel with it and given each shader sprite a full copy of its texture.
SHEET_EDGE ('mirror', what TextureLibrary uploads) is now separate from
DEFAULT_EDGE ('clamp'). A graph whose Sample reads nothing but its own pixel
draws with the plain sheet whatever the Edge says, so the common shader costs
no second copy.
Without a shader the quad's coordinates never leave 0..1, and mirror-repeat
reads like clamp within a texel - so clamp is what a sprite shows anyway.
An upload sends its file name next to the raw bytes, and the server keeps
it in a sidecar next to the content-addressed file. Both pickers caption
every tile and row with it, and an asset made there is named after the
file instead of "Texture" / "Font". Last upload of the same content wins.
The API's own set_error_handler ignores error_reporting(), so @-silenced
warnings still throw: a missing sidecar took the whole listing down with a
500. Existence is checked instead of suppressed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A font asset holds a file and nothing else, the twin of a texture: the server keeps it
content-addressed under data/fonts/{sha256}.{ext}, with the format read from the file's own
four-byte signature (finfo reports fonts inconsistently across libmagic versions). A text
wears one through its ordinary Font property, so overrides, reset, undo and the Properties
node come for free; no font means the editor's own typeface.
The picker lists everything the server holds and renders each row in the face it offers.
The family name is gm-font-<hash16>, never the name inside the file, so two "Regular" cannot
collide. WorldViewport.syncText is the single place that draws it, which covers scene, game
preview and play at once.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
shaderFingerprint(graph) covers node id/type/params/ports and edge endpoints only;
x/y, collapsed, folded and edge ids stay out. ShaderLibrary keys on it and counts
compiles (__gm.shaderCompiles()). Measured before: one compile per preview step of a
node drag (12 for a harness drag); after: 0, a param change exactly +1.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Four new rows on sprite, text, collider and container (block TRANSFORM):
scale, rotation in degrees clockwise, mirrorX, mirrorY. As properties they
get override/reset/apply, loading of old projects, write-back after play and
the Properties node for free; camera and behavior have none.
The hierarchy composes T*R*S per level (composeAlongChain replaces
sumAlongChain), so children rotate and scale with their parent. Reparenting
and grouping keep the look (carriedTransform). Drawing goes through
placeNode, the gizmo is a polygon, cull and objectRect use the AABB, drags
are computed in the parent's system.
Colliders are oriented boxes: SAT for box/box, box-circle in the box frame;
exitDistance replaces axisSeparation/axisCorrection, moveAndSlide moves along
the object's own axes.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Fragment-side coordinate nodes instead of vertex nodes: the quad stays the
quad, a UV read plus a sample at a computed coordinate covers flip, scroll,
wave, pixelate and scanlines. Time is a uniform only when a Time node reaches
the Output; a viewport that drew a Time shader redraws from the ticker so the
Scene tab animates without a running world. Edge (Mirror/Repeat/Clamp) is a
second texture variant in TextureLibrary because WebGL binds no TextureStyle
resource of the shader. The compiler now emits #version 300 es first: Pixi
only compiles as ES 3.00 when the fragment says so, and textureSize needs it.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
A sprite's picture is now a Mesh (unit quad, sibling of its Graphics node, which keeps
only the hit area); a worn shader replaces Pixi's fragment in that draw, so there is no
intermediate texture and no extra render pass. Measured on the HD 630: 400 shaded
sprites hold 60 fps (was 34), 800 hold 56 (was 20).
Two Pixi facts the code leans on: a mesh's texture is bound only for Pixi's own shader,
so GraphShader.wear hands it over; and MeshPipe caches whether a mesh batches and
re-checks it only in a frame without structure changes, so switching a shader on or
off calls mesh.unload().
The console panel mirrors console.group/groupCollapsed/groupEnd and fills the %s %d
%o %c directives, so Pixi's deprecation warning shows its head, not only its stack.
E2E 12 guards against the addChild-on-Graphics warning, 28 counts shaders instead of
filters.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
The + Property menu of the Properties node offered every shader's params
for every sprite. Each shader row now carries its shader name, and a name
shared by two shaders lists both: "brightness (Adjust colors, Neon glow)".
Sprite-owned rows stay unlabelled.
The note hangs off a map keyed by the def object, not by the name -- a
sprite property and a shader param may share a name (#63), and keying by
name would label the wrong row.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
No input, one Value param (step 0.05, drawn on the node), output `value`
as a float literal via floatLiteral (2 -> 2.0, NaN -> 0.0). No uniform,
no sprite row - that is the difference to Property.
The e2e negative check for "no behavior node in the palette" now uses
Boolean as its marker, and step 28 types the palette search first
because the palette scrolls from twelve entries on.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Output gains a number input `alpha`; unconnected it reads the texel's
alpha, like `color` reads the texel. The epilogue premultiplies with the
resolved alpha. New `Texture alpha` node exposes texel.a for maths.
PortDef.inline=false keeps the alpha port without an inline field: every
number port is inline by default, and a typed default of 0 would have made
every shaded sprite invisible. The compiler's texel fallback is typed:
colour ports get rgb, number ports get texel.a.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
The shipped shader graph gains a `brightness - 1` offset node, so 1 stays
neutral and brightness lifts every channel by the same amount; contrast keeps
multiplying, saturation keeps mixing with the luma. Fixture, seeds, unit and
e2e expectations follow (twelve nodes, 1.25 -> #80c0ff).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
A shader is an asset carrying a node graph (Texture color, Output, Property,
Color, Add/Subtract/Multiply/Divide, Mix, Luminance) that compiles to the GLSL
fragment of a Pixi filter. The Shader tab reuses the Behavior canvas; a sprite
wears a shader through its Shader picker, and the rows below it are the
graph's Property nodes. Property schema, resolution and deviation take the
project because a sprite's rows now live in another asset. The built-in
registry of the prototype is gone; "Adjust colors" ships as a graph in the
fixture and the three example games.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Order per instance: On start -> On enable -> On update ... -> On disable
-> On destroy. On enable fires right after On start and whenever the
behavior comes back on (itself and its parents); On disable in the frame
it goes off, the instance stays frozen. On destroy fires when the entity
leaves the world (Destroy node, child of a destroyed object) and when the
world is torn down on stop/restart, preceded by On disable if still on.
A new On start node added while playing still does not fire for a
running instance (kept as is, documented in the wiki).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
A state machine is an asset whose graph holds one `State` node per state
(no ports, name as title), edited in a new "State machine" tab that reuses
the graph canvas: right-click places "State n", snap toggle shared with the
Behavior tab via SnapToggle. `statemachine` is a value kind like texture
(port, literal node, variable, struct field, tagged list item).
Behaviors use it through `State branch` (one exec output per state) and
`Set state` (one exec input per state; the interpreter now hands `run` the
entry port). States live per behavior instance in NodeContext.states, with
no initial state. Ports derive from the inline picker or a wired
`State machine` literal; BehaviorLookup became GraphLookup with
behavior(id) and machine(id).
The Graph tab is labelled "Behavior" (key unchanged). Unit tests
(state-machine, kinds, catalog, ports), e2e step 26 and README added.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
- `.gitignore` said `index.html` unanchored, which also caught the Vite source page;
a fresh clone could neither `dev` nor `build`. Anchored to `/index.html`, page added.
- Removed GM_REMOTE (tools/remote/gm-browser.ps1 and the ssh/scp branch in browser.mjs):
the Windows test machine is gone and the only flaky check that lived on it is closed (#37).
- Removed `npm run preview`, undocumented and unused.
- Comments: wrong number in collider.test.ts (250 → 200), the "declarations used to…"
history in listItems.ts and friends, the 24 px/28 contradiction, section banners in
nodes/index.ts, node-catalog.test.ts and api/index.php, name paraphrases, and the stale
step numbers in tools/e2e/11-…23- from the old global count.
- README: asset types include `animation`, kind order Number/Text/Boolean, tagged colour
and texture items, 6/5 kinds, the `Texture` node, `./build.sh`, PROJECT_FORMAT_VERSION,
and the file tree (kinds.ts, listItems.ts, propertyPorts.ts, Breadcrumb.ts, beads.ts,
tools/assets/).
- tests/helpers.ts takes the duplicated `findObject` and `sceneWithCamera`.
Proof: ./check.sh 797 tests, full e2e ALL PASSED 633 checks against this bundle.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
adminandClaude Opus 5