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137 lines
2.8 KiB
C++
137 lines
2.8 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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// Description : Time TRange class.
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#ifndef CRYINCLUDE_CRYCOMMON_RANGE_H
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#define CRYINCLUDE_CRYCOMMON_RANGE_H
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#pragma once
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#include <AzCore/RTTI/TypeInfo.h>
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#ifndef MIN
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#endif
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#ifndef MAX
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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#endif
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/*!
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Class TRange, can represent anything that is range between two values, mostly used for time ranges.
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*/
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template <class T>
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class TRange
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{
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public:
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T start;
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T end;
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TRange() { start = T(0); end = T(0); };
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TRange(const TRange& r) { start = r.start; end = r.end; };
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TRange(T s, T e) { start = s; end = e; };
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void Set(T s, T e) { start = s; end = e; };
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void Clear() { start = 0; end = 0; };
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//! Get length of range.
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T Length() const { return end - start; };
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//! Check if range is empty.
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bool IsEmpty() const { return (start == 0 && end == 0); }
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//! Check if value is inside range.
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bool IsInside(T val) { return val >= start && val <= end; };
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void ClipValue(T& val) const
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{
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if (val < start)
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{
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val = start;
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}
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if (val > end)
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{
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val = end;
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}
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}
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//! Compare two ranges.
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bool operator == (const TRange& r) const
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{
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return start == r.start && end == r.end;
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}
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bool operator != (const TRange& r) const
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{
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return !(*this == r);
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}
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//! Assign operator.
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TRange& operator =(const TRange& r)
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{
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start = r.start;
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end = r.end;
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return *this;
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}
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//! Interect two ranges.
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TRange operator & (const TRange& r) const
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{
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return TRange(MAX(start, r.start), MIN(end, r.end));
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}
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TRange& operator &= (const TRange& r)
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{
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return (*this = (*this & r));
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}
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//! Concatent two ranges.
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TRange operator | (const TRange& r) const
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{
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return TRange(MIN(start, r.start), MAX(end, r.end));
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}
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TRange& operator |= (const TRange& r)
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{
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return (*this = (*this | r));
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}
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//! Add new value to range.
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TRange operator + (T v) const
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{
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T s = start, e = end;
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if (v < start)
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{
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s = v;
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}
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if (v > end)
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{
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e = v;
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}
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return TRange(s, e);
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}
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//! Add new value to range.
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TRange& operator += (T v) const
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{
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if (v < start)
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{
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start = v;
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}
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if (v > end)
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{
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end = v;
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}
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return *this;
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}
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};
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//! CRange if just TRange for floats..
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typedef TRange<float> Range;
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namespace AZ
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{
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AZ_TYPE_INFO_SPECIALIZE(Range, "{515CF4CF-4992-4139-BDE5-42A887432B45}");
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}
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#endif // CRYINCLUDE_CRYCOMMON_RANGE_H
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