private async Task <(string, Card)> GachaSingle(string id = null, bool tenTimes = false)
{
GachaDetail gd = !string.IsNullOrWhiteSpace(id) ? await client.GetGacha(id) : data.RecentGachaDetails.FirstOrDefault(i => i.Value.Type == "permanent" || i.Value.Type == "limited").Value;
if (gd == null)
{
gd = data.RecentGachaDetails.Last().Value;
}
var cards = gd.Details[0].ToList();
var rates = gd.Rates[0].ToList();
// 1. 选择稀有度
double sumRate = rates.Sum(c => c.Value.Rate);
double tempRate = 0;
List <double> sorted = new List <double>();
rates.ForEach(r => { tempRate += r.Value.Rate; sorted.Add(tempRate / sumRate); });
double next = randomer.NextDouble();
sorted.Add(next);
sorted.Sort();
var rate = int.Parse(rates[sorted.IndexOf(next)].Key);
// 2. 十连三星保底
if (tenTimes == true && rate == 2)
{
rate = 3;
}
// 3. 取出相应卡组
cards = cards.Where(c => c.Value.RarityIndex == rate).ToList();
sorted.Clear();
tempRate = 0;
sumRate = 0;
// 4. 大于三星时选择概率提升卡组
if (rate > 3)
{
var pickups = cards.GroupBy(k => k.Value.Pickup).Select(g => new KeyValuePair <bool, double>(g.Key, g.Sum(k => k.Value.Weight))).ToList();
sumRate = pickups.Sum(k => k.Value);
pickups.ForEach(p => { tempRate += p.Value; sorted.Add(tempRate / sumRate); });
next = randomer.NextDouble();
sorted.Add(next);
sorted.Sort();
var pickup = pickups[sorted.IndexOf(next)].Key;
cards = cards.Where(k => k.Value.Pickup == pickup).ToList();
sorted.Clear();
tempRate = 0;
sumRate = 0;
}
// 5. 取出卡片
int nextIndex = randomer.Next(0, cards.Count - 1);
return(cards[nextIndex].Key, data.Cards[cards[nextIndex].Key]);
}
public async void DoHandleAsync(MiraiHttpSession session, IMessageBase[] chain, IBaseInfo info, bool isGroupMessage = true)
{
List <IMessageBase> result = null;
IMessageBase img = null;
sb.Clear();
switch (chain.First(m => m.Type == "Plain").ToString())
{
case "单抽":
logger.LogInformation($"{info.Name} 单抽");
var card = await GachaSingle();
var message = $"单抽结果: {stars[card.Item2.Rarity]} {data.Characters[card.Item2.CharacterId.ToString()].CharacterName[0]} - {card.Item2.Prefix[0]}";
img = await session.UploadPictureAsync(UploadTarget.Group, await client.GetCardThumbPath(card.Item2.ResourceSetName, card.Item1));
result = new List <IMessageBase>
{
new PlainMessage(message),
img
};
logger.LogInformation(message);
break;
case "当期池子":
GachaDetail gd = GetRecentGachaDetail();
DateTime endTime = DateTimeOffset.FromUnixTimeMilliseconds(long.Parse(gd.ClosedAt[0])).LocalDateTime;
DateTime startTime = DateTimeOffset.FromUnixTimeMilliseconds(long.Parse(gd.PublishedAt[0])).LocalDateTime;
sb.AppendLine(gd.GachaName[0]);
sb.AppendLine(gd.Information.NewMemberInfo[0]);
sb.AppendLine($"{startTime} - {endTime}");
img = await session.UploadPictureAsync(UploadTarget.Group, await client.GetGachaBannerImagePath(gd.BannerAssetBundleName));
result = new List <IMessageBase>
{
new PlainMessage(sb.ToString()),
img
};
logger.LogInformation(sb.ToString());
break;
case "十连":
List <(string, Card)> cards = new List <(string, Card)>(11);
for (int i = 0; i < 9; i++)
{
cards.Add(await GachaSingle());
}
cards.Add(await GachaSingle(tenTimes: true));
img = await session.UploadPictureAsync(UploadTarget.Group, await render.RenderGachaImageAsync(cards));
sb.AppendLine("十连结果:");
foreach (var item in cards)
{
sb.AppendLine($"{stars[item.Item2.Rarity]} {data.Characters[item.Item2.CharacterId.ToString()].CharacterName[0]} - {item.Item2.Prefix[0]}");
}
result = new List <IMessageBase>
{
new PlainMessage(sb.ToString()),
img
};
logger.LogInformation(sb.ToString());
break;
default:
break;
}
if (isGroupMessage)
{
await session.SendGroupMessageAsync(((IGroupMemberInfo)info).Group.Id, result.ToArray());
}
else
{
await session.SendFriendMessageAsync(info.Id, result.ToArray());
}
}
