add multiple meteors and ability to slow meteors

[benjamw]

I really like the "Meteor" effect, and wanted to have multiple meteors going across my house. So I added a slider that adds meteors (up to 8, default 1).

The meteors also moved very quickly across my house, so I added a checkbox function to slow the meteors down (default off).

Built and tested locally and works well.

AI was used to assist me coding this.

Summary by CodeRabbit

Summary

• New Features

  • Enhanced the Meteor effect to render multiple evenly spaced meteors.
  • Added a Slow mode for a more relaxed animation pace.
  • Introduced parameters to control # of Meteors and Slow.

• Improvements

  • Updated meteor timing and trail behavior for smoother results and consistent rendering across both smooth and non-smooth display modes.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

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📥 Commits

Reviewing files that changed from the base of the PR and between 163d455 and 7ab24be.

📒 Files selected for processing (1)

• wled00/FX.cpp

🚧 Files skipped from review as they are similar to previous changes (1)

• wled00/FX.cpp

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Walkthrough

The Meteor effect now supports multiple evenly spaced meteors and a slow mode. Segment controls determine meteor count and timing, while rendering, trail updates, frame progression, and effect metadata reflect the new options.

Changes

Meteor effect updates

Layer / File(s)	Summary
Meteor controls and rendering wled00/FX.cpp	Adds configurable meteor count and slow mode, updates smooth and non-smooth timing, renders evenly spaced meteor trails, adjusts frame progression, and exposes the new controls in effect metadata.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Suggested labels: effect

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: Meteor now supports multiple meteors and an optional slow mode.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[coderabbitai]

🧹 Nitpick comments (1)

wled00/FX.cpp (1)

2427-2433: 📐 Maintainability & Code Quality | 🔵 Trivial | ⚡ Quick win

Format the new meteor loop to match WLED C++ style.

The added block uses if(meteorSmooth) / else{ and over-indents the smooth branch. Please format it with if ( / } else { and 2-space indentation.

As per coding guidelines, wled00/**/*.{cpp,h} requires 2-space indentation, spaces after control-flow keywords, and K&R braces.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@wled00/FX.cpp` around lines 2427 - 2433, Reformat the meteorSmooth
conditional in the meteor loop to follow WLED C++ style: use “if (meteorSmooth)”
and “} else {”, with the smooth branch and its statements indented by two
spaces. Preserve the existing logic and expressions unchanged.

Source: Coding guidelines

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@wled00/FX.cpp`:
- Around line 2427-2433: Reformat the meteorSmooth conditional in the meteor
loop to follow WLED C++ style: use “if (meteorSmooth)” and “} else {”, with the
smooth branch and its statements indented by two spaces. Preserve the existing
logic and expressions unchanged.

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: d7448f14-eaf4-4d42-967b-8f625fd7517c

📥 Commits

Reviewing files that changed from the base of the PR and between 8db3d7a and 163d455.

📒 Files selected for processing (1)

• wled00/FX.cpp

[DedeHai]

thanks, sounds like good addition - similar to multi comet. You can also try PS Sparkler, it is different though but also can do something similar.

can you show what it looks like? there is an FX recorder tool in my wled tools repo.

[benjamw]

Palette: Fire
Effect Speed: 23
Trail: 245
# of Meteors: 128
Gradient: on
Slow: on
Smooth: off

Original for comparison: