setDrag()

void fl::PerlinParticlePunch::setDrag

(

float

drag

)

Set per-frame drag for ambient particles (0.0 = instant stop, 1.0 = no drag).

Meteor drag is derived from this at a heavier ratio.

Definition at line 109 of file perlin_particle_punch.cpp.hpp.

                                            {
    mDrag = drag;
    // Meteor drag is slightly heavier than ambient.
    // Scale the difference from 1.0, not the value itself.
    // drag=0.99 → meteorDrag=0.985, drag=0.80 → meteorDrag=0.74
    float diff = 1.0f - drag;
    mMeteorDrag = 1.0f - diff * 1.5f;
    if (mMeteorDrag < 0.0f)
        mMeteorDrag = 0.0f;
}

References mDrag, and mMeteorDrag.

Referenced by ~PerlinParticlePunch().

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