83 lines
No EOL
2.3 KiB
C++
83 lines
No EOL
2.3 KiB
C++
#pragma once
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#include <type_traits>
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#include <initializer_list>
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#include <algorithm>
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template<class Type>
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class Range
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{
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static_assert(std::is_arithmetic<Type>::value, "The Type should be arithmetic");
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public:
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constexpr Range() = default;
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// constexpr Range(std::initializer_list<Type> list)
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// {
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// switch(list.size())
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// {
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// case 0:
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// break;
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// case 1:
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// _start = *list.begin();
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// _end = _start;
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// break;
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// default:
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// _start = *list.begin();
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// _end = *(list.begin() + 1);
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// }
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// }
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constexpr Range(Type start, Type end) noexcept
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: _start(start), _end(std::max(start, end)) {}
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~Range() = default;
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Type getStart() const noexcept { return _start; }
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Type getEnd() const noexcept { return _end; }
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std::pair<Type, Type> getPair() const noexcept { return std::make_pair<Type, Type>(_start, _end); }
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Range(const Range<Type>& range) = default;
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Range(Range<Type>&& range) = default;
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void setStart(Type start) noexcept
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{
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_start = start;
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if (start > _end)
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_end = start;
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}
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void setEnd(Type end) noexcept
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{
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_end = end;
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if (end < _start)
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_start = end;
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}
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Type clamp(Type value) const noexcept { return std::clamp(value, _start, _end); }
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bool containsWithEnd(Type value) const noexcept { return (value >= _start && value <= _end); }
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bool contains(Type value) const noexcept { return (value >= _start && value < _end); }
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void shrinkIfSmaller( Type start, Type end)
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{
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if (start > end)
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std::swap(start, end);
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if (start > _start)
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_start = start;
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if (end < _end)
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_end = end;
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}
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private:
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Type _start { static_cast<Type>(0.0) };
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Type _end { static_cast<Type>(0.0) };
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};
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template<class Type>
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bool operator==(const Range<Type>& lhs, const Range<Type>& rhs)
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{
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return (lhs.getStart() == rhs.getStart()) && (lhs.getEnd() == rhs.getEnd());
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}
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template<class Type>
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bool operator==(const Range<Type>& lhs, const std::pair<Type, Type>& rhs)
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{
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return (lhs.getStart() == rhs.first) && (lhs.getEnd() == rhs.second);
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}
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template<class Type>
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bool operator==(const std::pair<Type, Type>& lhs, const Range<Type>& rhs)
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{
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return rhs == lhs;
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} |