double sizeRatio = blockDistributionSizeRatio == null ? 1.0 : blockDistributionSizeRatio;
double uniformDistributionProbability = blockDistributionUniformDistributionProbability == null ? 0.0 : blockDistributionUniformDistributionProbability;
return new BlockDistributionNearbyRandom(sizeMinimum, sizeMaximum, sizeRatio, uniformDistributionProbability);
} else if (linearDistributionEnabled) {
int sizeMaximum = linearDistributionSizeMaximum == null ? Integer.MAX_VALUE : linearDistributionSizeMaximum;
return new LinearDistributionNearbyRandom(sizeMaximum);
} else if (parabolicDistributionEnabled) {
int sizeMaximum = parabolicDistributionSizeMaximum == null ? Integer.MAX_VALUE : parabolicDistributionSizeMaximum;
return new ParabolicDistributionNearbyRandom(sizeMaximum);
} else if (betaDistributionEnabled) {
double alpha = betaDistributionAlpha == null ? 1.0 : betaDistributionAlpha;