adminandClaude Opus 5.5 5399ef17e5 Snap the scene view zoom to pixel exact steps ...

The wheel zoomed smoothly and fit computed any factor, so the scene
view almost never showed pixel art with even texels. Under Windows
scaling even zoom 1 was off. The zoom now only takes steps that give
every texel the same number of screen pixels.

- The zoom counts device pixels per world pixel. freeView divides by
  the renderer resolution, so zoom 1 is one screen pixel per texel.
- FREE_ZOOM_STEPS: 1/8, 1/4, 1/2, then 1 to 6, 8, 12, 16 and 24.
- The wheel moves one step per notch. A trackpad collects its travel
  and steps every 50 px.
- Fit rounds down to the next step. A saved zoom from before snaps to
  the nearest step on a log scale.
- Pan, drag, grid and resize use CSS pixels per world unit, so they
  still follow the pointer under Windows scaling.
- Always on, no toggle, as decided in the session.

Tests:
- 4 unit tests: zoom 1 at 125%, whole steps, wheel steps and ends, fit
  rounding and snapping of a saved zoom.
- Counter-check: without the ratio in freeView the 125% test fails.
- check.sh: 156 files, 2320 tests, CHECK EXIT 0.
- e2e 1-17,28,30,38-40: 726 checks passed on the steps before the
  final values (up to 8). Not rerun on the final steps.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-09-24 10:40:54 +02:00

..

active-camera.test.ts

Show the camera's picture in the game tab without playing

2026-09-09 16:27:04 +02:00

collider-color.test.ts

Show a clickable symbol for colliders in the scene view

2026-09-23 19:18:10 +02:00

file-library.test.ts

Texture fills show in the vector tab as soon as they load (#196)

2026-09-21 17:48:10 +02:00

generated-pictures.test.ts

Refactoring round 6: shared sheet canvas, fewer copies (#85)

2026-09-23 06:57:43 +02:00

layer-z.test.ts

Each tilemap layer has its own Z: an offset added to the Z of the placed tilemap, like a child's Z to its parent, default 0 keeps the previous order (layers right after their map, in list order), a negative Z sorts a layer below the map, on a tie layers keep their list order and follow the hierarchy against other objects; editor scene and game use the same order through the new pure function drawSlots, a tilemap draws into one container per layer, and the tilemap panel gains a Z field for the selected layer with one undo step per change (#174)

2026-09-19 14:03:20 +02:00

nine-slice.test.ts

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)

2026-09-16 18:09:43 +02:00

pick.test.ts

Right-click in the scene view opens the object menu (#204)

2026-09-22 19:47:31 +02:00

sound-library.test.ts

A game that stays silent is only half a game, so a sound is an asset like any other (#45)

2026-09-15 07:54:28 +02:00

symbol-layout.test.ts

Draw scene symbols as white panel icons that make room for each other

2026-09-23 20:07:47 +02:00

view.test.ts

Snap the scene view zoom to pixel exact steps

2026-09-24 10:40:54 +02:00