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Improvements to seq_compiler Gantt chart visualization:
- Add optional sequence name support: SEQUENCE <start> <pri> ["name"] [end]
Names displayed in both ASCII and HTML Gantt charts for better readability
- Implement adaptive tick intervals based on demo duration:
* ≤5s: 1s intervals
* ≤40s: 2s intervals (fixes 32.5s demo from 5s to 2s)
* ≤100s: 5s intervals
* >100s: 10s+ intervals
- Sort sequences by start time in Gantt output for chronological visualization
- Add horizontal visual separators between sequences in both ASCII and HTML
- Update documentation (SEQUENCE.md) and quick reference (demo.seq)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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Simplifies effect priority management by using relative modifiers instead
of explicit numbers, making timeline reordering much more practical.
## New Priority System
Effects now use priority modifiers after EFFECT keyword:
- `+` increment priority by 1 (or start at 0 if first)
- `=` keep same priority as previous effect
- `-` decrement priority (or start at -1 if first, for background)
Old syntax:
```
EFFECT FlashEffect 0.0 0.5 0
EFFECT FadeEffect 0.1 0.3 1
EFFECT BgCube 0.2 3 -1
```
New syntax:
```
EFFECT - BgCube 0.2 3 # Priority -1 (background)
EFFECT + FlashEffect 0.0 0.5 # Priority 0
EFFECT + FadeEffect 0.1 0.3 # Priority 1
```
## Benefits
✓ Reordering effects no longer requires renumbering all priorities
✓ Priority relationships are explicit and relative
✓ File order matches render order (easier to understand)
✓ Same-priority effects clearly marked with `=`
✓ Background layers (-1) clearly marked with `-`
✓ Reduces errors when reorganizing timelines
## Implementation
- Updated seq_compiler to parse +/=/- modifiers
- Tracks current priority per sequence
- First effect sets base priority (0 or -1)
- Subsequent effects modify relative to previous
- Generated C++ code unchanged (still uses integer priorities)
## Changes to demo.seq
- All effects updated to use new syntax
- Effects reordered by priority within sequences
- Priority gaps removed (were likely unintentional)
- Comments updated to reflect new system
## Documentation
- Updated SEQUENCE.md with new syntax
- Added examples showing +, =, - usage
- Explained priority calculation rules
This makes timeline authoring significantly more maintainable, especially
when experimenting with different effect orderings during development.
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Moves comprehensive sequence system documentation out of demo.seq into
a proper documentation file, keeping the timeline file clean and focused.
Changes:
- New file: doc/SEQUENCE.md with complete .seq format reference
- Streamlined: assets/demo.seq reduced from 207 to 104 lines
- Updated: README.md to include SEQUENCE.md reference
Benefits:
- Easier to read and navigate the actual timeline
- Documentation separately viewable in markdown
- Better for version control (timeline vs doc changes separated)
- Follows project convention of dedicated doc files
- Makes demo.seq more approachable for quick edits
The timeline file is now 50% smaller while all documentation remains
easily accessible in the standard doc/ directory.
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