- Add SimBridge._last_snapshot = null to P3 before_test() (contamination risk)
- Clarify mono.is_visible is custom property, not CanvasItem builtin
- Camera smoothing test uses approximate equality instead of exact
- Propagate inner _encode_message errors in array/dict encoding
- Add explanatory comment on int_64 encoder branch
- Document unfalsifiable gauntlet guard as intentional future-proof
- Remove loose D-053 citation from LERP_SPEED pin
- Assert FogOverlay is sibling of FogGroup under World
- Add CANVAS_MODAL=30 (ModalLayer) assertion in P3-Z04
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The int_64 branch condition `-(1 << 63) <= value` overflowed in
GDScript's signed 64-bit arithmetic, making the branch unreachable.
Negative values beyond int_32 range were incorrectly encoded as
uint_64 (0xcf) instead of int_64 (0xd3). Replaced with `value < 0`.
Updated boundary tests BV-N15 and BV-N16 to expect correct int_64
header byte.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Off-by-one in all four signed int branches: upper bound used <= instead
of < (e.g., value <= 128 matched int8 instead of falling through to
uint8). Tick 128 was encoded as int8 -128, causing server deserialization
failure. Also remove stray debug prints from nil/false decode paths.
Fixes bug #4 (MessagePack encodes tick 128 as -128).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Install Godot4MessagePack (pure GDScript) for MessagePack encode/decode.
Add Rust fixture generator (gen_fixtures.rs) that produces canonical
.msgpack files using rmp_serde::to_vec_named for cross-language testing.
Fixtures cover: snapshots (empty, one NPC, multi-entity with all
EntityKind variants) and player inputs (unit + data enum variants).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.6