namespace PMaker.Extension
{
    public static class IntExtension
    {
        /// <summary>
        /// 判断是否在指定范围内
        /// </summary>
        /// <param name="value"></param>
        /// <param name="min">最小值</param>
        /// <param name="max">最大值</param>
        /// <returns></returns>
        public static bool IsClamp(this int value, int min, int max)
        {
            return value <= max & value >= min;
        }

        /// <summary>
        /// 某一范围内循环自增
        /// </summary>
        /// <param name="value"></param>
        /// <param name="max"></param>
        /// <param name="min"></param>
        public static void CyclicAdd(ref this int value, int max, int min = 0)
        {
            value = (value - min + 1) % max + min;
        }

        /// <summary>
        /// 某一范围内循环自减
        /// </summary>
        /// <param name="value"></param>
        /// <param name="max"></param>
        /// <param name="min"></param>
        public static void CyclicSub(ref this int value, int max, int min = 0)
        {
            value = (value - min + max - 1) % max + min;
        }
        //public static int CyclicAdd(this int value, int max, int min = 0)
        //{
        //    return (value - min + 1) % max + min;
        //}
        //public static int CyclicSub(this int value, int max, int min = 0)
        //{
        //    return (value - min + max - 1) % max + min;
        //}

        /// <summary>
        /// 设置指定bit位为1
        /// </summary>
        /// <param name="value"></param>
        /// <param name="index">0base</param>
        public static void BitOn(ref this int value, int index)
        {
            value |= (1 << index);
        }

        /// <summary>
        /// 设置指定bit位为0
        /// </summary>
        /// <param name="value"></param>
        /// <param name="index">0base</param>
        public static void BitOff(ref this int value, int index)
        {
            value &= ~(1 << index);
        }

        /// <summary>
        /// 判断是否包含目标值
        /// </summary>
        /// <param name="value"></param>
        /// <param name="target"></param>
        /// <returns></returns>
        public static bool BitIs(this int value, int target)
        {
            return (value & target) == target;
        }
    }
}