b5a3b16651
Add collapse(board): per-column gravity that packs gems contiguously at
the bottom (preserving top-to-bottom order) and bubbles holes to the top,
with no horizontal movement. Returns whether any gem fell, for the P2.4
cascade. Does not refill (that is P2.3).
tests/collapse.sx snapshots gravity over hand-crafted boards exercising
holes in the middle / at the bottom, a full column of holes, a column
with none, a lone gem, an alternating stack, and an already-settled board
(idempotency). Asserts, independently of the dump, that each column's gems
end packed at the bottom in original order with holes above, plus the
exact moved flag. Golden locked in tests/expected/collapse.{stdout,exit}.
m3te
A match-3 game written entirely in the sx language, targeting iOS first.
- Game logic, rendering, input, and UI are all authored in sx.
- Art (palettes, sprite sheets) is produced as real assets.
- Verification gate: sx logic tests pass AND the iOS app builds & launches in the Simulator.
Development is driven by the multi-agent flow (Product Owner → Worker → Reviewer → Observer).
Verification gate
The gate has two halves. Both must pass. The sx compiler used below lives at
/Users/agra/projects/sx/zig-out/bin/sx (override the runner's binary with the
SX env var). Run everything from the repo root.
1. Logic tests
Pure-sx logic tests run under sx and have their stdout + exit code diffed
against committed snapshots in tests/expected/. A failed assertion exits the
process non-zero, so it fails the runner (and the gate).
bash tools/run_tests.sh
- A test is any
tests/<name>.sxthat has atests/expected/<name>.exitmarker;tests/test.sx(theexpectassert helper) has no marker, so it is not itself run. - Regenerate snapshots after an intentional change:
bash tools/run_tests.sh --update.
2. iOS Simulator build + launch
Build the app for the simulator, then install/launch it on an available device and screenshot the rendered scene (blue background + a centered orange quad).
# Build the .app bundle (sx-out/ios/M3te.app):
/Users/agra/projects/sx/zig-out/bin/sx build --target ios-sim main.sx
# Discover an available simulator — do NOT hardcode a udid:
xcrun simctl list devices available
# e.g. capture the first available device's UDID into $udid:
udid=$(xcrun simctl list devices available | grep -Eo '[0-9A-Fa-f-]{36}' | head -1)
# Boot it (skip if already "Booted") and bring the Simulator window up:
xcrun simctl boot "$udid" || true
open -a Simulator
# Install, launch (bundle id co.swipelab.m3te), and screenshot:
xcrun simctl install booted sx-out/ios/M3te.app
xcrun simctl launch booted co.swipelab.m3te
xcrun simctl io booted screenshot /tmp/m3te.png
The screenshot should match goldens/p0_quad.png (a centered orange quad over a
blue clear), modulo the status-bar clock — pixel-exact equality is not required.
A tap on the quad flips its color (orange ↔ green); see
goldens/p0_input_before.png / goldens/p0_input_after.png.