Class Initializer_RotationRandom

src/SourceEngine/ParticleSystem.ts:503–530

}

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

    constructor(elem: DMX.DMXElement) {
        super(elem);
        this.initial = getAttribValue(elem, `rotation_initial`, DMX.DMXAttributeType.Float, 0) * MathConstants.DEG_TO_RAD;
        this.min = getAttribValue(elem, `rotation_offset_min`, DMX.DMXAttributeType.Float, 0) * MathConstants.DEG_TO_RAD;
        this.max = getAttribValue(elem, `rotation_offset_max`, DMX.DMXAttributeType.Float, 360) * MathConstants.DEG_TO_RAD;
        this.randomExponent = getAttribValue(elem, `rotation_random_exponent`, DMX.DMXAttributeType.Float, 1);
    }

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

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

        const rotation = this.initial + randRangeExp(system, this.min, this.max, this.randomExponent);

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

class Initializer_SequenceRandom extends ModuleBase {
    private readonly min: number;