Class Initializer_AlphaRandom

src/SourceEngine/ParticleSystem.ts:330–355

}

class Initializer_AlphaRandom extends ModuleBase {
    private readonly min: number;
    private readonly max: number;
    private readonly randomExponent: number;

    constructor(elem: DMX.DMXElement) {
        super(elem);
        this.min = getAttribValue(elem, `alpha_min`, DMX.DMXAttributeType.Int, 0xFF) / 0xFF;
        this.max = getAttribValue(elem, `alpha_max`, DMX.DMXAttributeType.Int, 0xFF) / 0xFF;
        this.randomExponent = getAttribValue(elem, `alpha_random_exponent`, DMX.DMXAttributeType.Float, 1);
    }

    public override streamWrite(): StreamMask {
        return StreamMask.Alpha;
    }

    public init(system: ParticleSystemInstance, p: number): void {
        if (!system.hasStream(StreamMask.Alpha))
            return;

        const alpha = randRangeExp(system, this.min, this.max, this.randomExponent);

        const data = system.particleDataF32;
        data[system.getStreamOffs(StreamMask.Alpha, p)] = alpha;
    }
}

class Initializer_ColorRandom extends ModuleBase {
    private readonly color1: Readonly<Color>;