private Rarity SimulateRollRarity(double random, SimulateConfig config)
{
float ongoingSum = 0;
ongoingSum += config.RarityWeightUnique;
if (config.RarityWeightUnique > 0 && random <= ongoingSum)
{
return(Rarity.Unique);
}
ongoingSum += config.RarityWeightLegendary;
if (config.RarityWeightLegendary > 0 && random <= ongoingSum)
{
return(Rarity.Legendary);
}
ongoingSum += config.RarityWeightEpic;
if (config.RarityWeightEpic > 0 && random <= ongoingSum)
{
return(Rarity.Epic);
}
ongoingSum += config.RarityWeightRare;
if (config.RarityWeightRare > 0 && random <= ongoingSum)
{
return(Rarity.Rare);
}
ongoingSum += config.RarityWeightMagic;
if (config.RarityWeightMagic > 0 && random <= ongoingSum)
{
return(Rarity.Magic);
}
return(Rarity.None);
}
public void RollRarityShouldNotReturnRarityWithWeightZero()
{
// Arrange
SimulateConfig config = new SimulateConfig();
config.RarityWeightUnique = 0;
config.RarityWeightMagic = 100;
var random = 0;
float sumWeight =
config.RarityWeightNone +
config.RarityWeightMagic +
config.RarityWeightRare +
config.RarityWeightEpic +
config.RarityWeightLegendary +
config.RarityWeightUnique;
// Act
Rarity result = SimulateRollRarity(random, config);
// Assert
Assert.AreEqual(Rarity.Magic, result);
}
