private async Task <GachaItem> DoGachaAsync(GachaPool.PoolName poolName, int FixedRarity = 0)
{
var index = random_.Next(100);
var rarity = FixedRarity;
if (rarity == 0)
{
for (int i = 0; i < AllPools[poolName].RarityDistribution.Length; ++i)
{
if (index < AllPools[poolName].RarityDistribution[i])
{
rarity = i + 1;
break;
}
}
}
var allItems = await AllItemsAsync();
var itemsInPool = allItems.Where(r => r.Name == poolName && r.Item.Rarity == rarity).OrderBy(_ => random_.Next());
int totalWeight = itemsInPool.Sum(p => p.Weight);
int itemIndex = random_.Next(totalWeight) + 1; // non-zero
int current = 0;
foreach (var item in itemsInPool)
{
current += item.Weight;
if (current >= itemIndex)
{
return(item.Item);
}
}
// Only possible if no item has the given rarity at this pool.
throw new ApplicationException("Item exhausted! Bad pool config!");
}
private bool ValidatePool(GachaPool.PoolName name)
{
if (!AllPools.ContainsKey(name))
{
return(false);
}
var pool = AllPools[name];
if (pool.StartTime.HasValue && DateTime.Now < pool.StartTime)
{
return(false);
}
if (pool.EndTime.HasValue && DateTime.Now > pool.EndTime)
{
return(false);
}
return(true);
}
public PoolCountTitleCondition(GachaPool.PoolName poolName, int count, UserQuest.UserProfession profession)
{
Count = count;
Title = profession;
PoolName = poolName;
}
