constraint_offset

Синтаксис

									stock constraint_offset(low, high, seed, offset)
									{
     new numElements = high - low + 1;
     offset += seed - low;

     if (offset >= 0)
     {
          return low + (offset % numElements);
     }
     else
     {
          return high - (abs(offset) % numElements) + 1;
     }

     return 0;     // Makes the compiler happy -_-
}
								

Lower bound

Higher bound

Base value

Offset to move

Описание

Computes an offset from a given value while constraining it between the specified bounds, rolling over if necessary.

Пометка

Example: The range is 1-5 and the base value (seed) is 3, the offset
that the value should be moved by is also 3. Offsetting the value by 3
would result in 6, but it is to be constrained between 1 and 5. With
clamp() this would result in 5, but this function rolls the value over
and returns 1 instead.

Возвращает

Computed offset value between specified bounds