Particle emitter color bug

[Golen87]

Version

• Phaser Version: 3.88.2

• Operating system: Linux, Ubuntu

• Browser: Chrome Version 133.0.6943.53

Description

If a ParticleEmitter is provided with color: [0xFF0000, 0x00FF00], the particles will correctly interpolate red->green.

However, if the ParticleEmitter's config is updated using updateConfig or setConfig, the color cycle repeats red->green->red->green. Each update adds another cycle length, which quickly turns into rapid flickering.

Example Test Code

https://phaser.io/sandbox/YSJesSAQ

Click on the game multiple times to see the cycle count increase, causing a rapid flicker.

Additional Information

The updateConfig is empty in this example, but in my own project I need the function to adjust the particle angle. Adding color made me stumble across the issue. Depending on the cause of the problem, the same bug may affect other emitter properties.

[zekeatchan]

Hi @Golen87. Thanks for submitting this issue. @samme has provided a PR to fix this and I've merged it with the master branch. It will be part of the next release. Do test it out and let us know if you encounter any issues.