Function IsInRangeInclusive

src/viewport.cpp:789–793

* Check if the parameter "check" is inside the interval between * begin and end, including both begin and end. * @note Whether \c begin or \c end is the biggest does not matter. * This method will account for that. * @param begin The begin of the interval. * @param end The end of the interval. * @param check The value to check. */

 * @param check The value to check.
 */
static bool IsInRangeInclusive(int begin, int end, int check)
{
	if (begin > end) std::swap(begin, end);
	return begin <= check && check <= end;
}

/**
 * Checks whether a point is inside the selected a diagonal rectangle given by _thd.size and _thd.pos