[Refactor] Improve enum defination rules

[halx99]

When all characters of a enum symbol are uppercase, some times, will confilcit with system macro definations, such as:

• OS_WINDOWS conflicit with C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\um\Shlwapi.h
• ALPHA_MASK confilcit with C:\Program Files (x86)\Windows Kits\10\Include\10.0.22621.0\um\gdipluspixelformats.h

Sugesstion solution, change all enum to like class name, such as:

ALPHA_MASK to AlphaMask

[DelinWorks]

since it's not exposed to the user, maybe PARTICLE_ALPHA_MASK is better?

[halx99]

since it's not exposed to the user, maybe PARTICLE_ALPHA_MASK is better?

May not a good solution, because enum class is suggested for modern c++ programming, add specific prefx looks redundantly

[DelinWorks]

How about defining the EmissionShapeType enum inside ParticleSystem class like these enums:

[DelinWorks]

I see why now. but AlphaMask feels out of touch

[DelinWorks]

Same goes for point and rect and some others, I think prefixing PARTICLE or SHAPE is good or is it not?

[halx99]

I see why now. but AlphaMask feels out of touch

It's touch to c# code style.

[stale[bot]]

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