/// <summary>
/// 从源数据列表中随机取出一个奖品
/// </summary>
/// <param name="coins">金币数</param>
/// <param name="sourceData">源数据</param>
/// <returns></returns>
private List <AwardData> FindPropAwards(int coins, List <AwardData> sourceData, ref int leftCoins)
{
if (coins <= 0)
{
throw new System.Exception("<><AwardDataHelper.FindPropAwards>Paramater 'cost' must not be less than zero");
}
else if (sourceData == null || sourceData.Count == 0)
{
throw new System.Exception("<><AwardDataHelper.FindPropAwards>Paramater 'sourceData' is null or its length is zero");
}
List <AwardData> result = new List <AwardData>();
sourceData = sourceData.FindAll(t => t.Price <= coins);//过滤出价格小于金币数的奖品
if (sourceData.Count == 0)
{
return(result); //如果一个都没有，则返回空的集合
}
int randomIndex = Random.Range(0, sourceData.Count * 10) % sourceData.Count;
AwardData awardData = sourceData[randomIndex]; //随机取出一个奖品
int count = coins / awardData.Price; //计算金币数一共购买几个奖品
if (coins % awardData.Price != 0 && (awardData.Price * (count + 1)) / (float)coins <= 1.1f) //如果金币还有剩余，尝试再多买一个，但不能超出所有金币数的10%
{
count += 1;
}
leftCoins = coins - awardData.Price * count;
awardData.Count = count;
result.Add(awardData);
return(result);
}
/// <summary>
/// 增加奖品
/// </summary>
/// <param name="awardData">奖品数据</param>
public void AddItem(AwardData awardData)
{
if (awardData != null)
{
if (awardData.AwardType.ToLower() == AwardTypes.COIN.ToLower() ||
awardData.AwardType.ToLower() == AwardTypes.FOOD.ToLower())
{
this.FundDataManager.AddProperty(awardData.ID, awardData.Count);
}
else
{
this.ItemDataManager.AddItem(awardData.ID, awardData.Count);
}
}
else
{
Debug.LogError("<><AwardDataHelper.AddItem>Parameter 'awardData' is null");
}
}