/// <summary>
/// 乘法
/// </summary>
/// <param name="digitID"></param>
/// <param name="operandID"></param>
/// <returns></returns>
private List <int> GetMultiplicationInstance()
{
List <int> instance = null;
int product = 0;
int min = (int)Mathf.Pow(10, (int)CurCategoryInstance.digitID);
int max = (int)Mathf.Pow(10, (int)CurCategoryInstance.digitID + 2);
do
{
instance = GetInstance(min + 1, max, (int)CurCategoryInstance.operandID);
product = GetProduct(instance);
}while (CanDividedByTen(instance) || HasInstance(instance) || IsRepeat(instance) || !CanMultiply(instance, min));
checkList.Add(instance);
instance = Shuffle(instance);
instance.Add(product);
return(instance);
}
/// <summary>
/// 加法
/// </summary>
/// <param name="digitID"></param>
/// <param name="operandID"></param>
/// <returns></returns>
private List <int> GetAdditionInstance()
{
List <int> instance = null;
int sum = 0;
int min = (int)Mathf.Pow(10, (int)CurCategoryInstance.digitID + 1);
int max = (int)Mathf.Pow(10, (int)CurCategoryInstance.digitID + 2);
do
{
instance = GetInstance(min, max, (int)CurCategoryInstance.operandID);
sum = GetSum(instance);
}while (CanDividedByTen(instance) || HasInstance(instance) || IsRepeat(instance));
checkList.Add(instance);
instance = Shuffle(instance);
instance.Add(sum);
return(instance);
}
/// <summary>
/// 减法
/// </summary>
/// <param name="digitID"></param>
/// <param name="operandID"></param>
/// <returns></returns>
private List <int> GetSubtractionInstance()
{
List <int> instance = null;
int difference = 0;
int min = (int)Mathf.Pow(10, (int)CurCategoryInstance.digitID + 1);
int max = (int)Mathf.Pow(10, (int)CurCategoryInstance.digitID + 2);
do
{
instance = GetInstance(min, max, (int)CurCategoryInstance.operandID);
}while (CanDividedByTen(instance) || HasInstance(instance) || IsRepeat(instance) || !CanMinus(instance, min, out difference));
checkList.Add(instance);
int minuend = instance[0];
instance.RemoveAt(0);
instance = Shuffle(instance);
instance.Insert(0, minuend);
instance.Add(difference);
return(instance);
}
