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Merge pull request #1758 from lioncash/rect

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common/math_util: Minor cleanup
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bunnei 2018-11-21 08:05:39 -08:00 committed by GitHub
parent 81e14c072a 45211a7a91
commit 8cdb48224d
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1 changed files with 5 additions and 11 deletions
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16
src/common/math_util.h
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@ -4,18 +4,12 @@
#pragma once #pragma once
#include <algorithm>
#include <cstdlib> #include <cstdlib>
#include <type_traits> #include <type_traits>
namespace MathUtil { namespace MathUtil {
static constexpr float PI = 3.14159265f; constexpr float PI = 3.14159265f;
inline bool IntervalsIntersect(unsigned start0, unsigned length0, unsigned start1,
unsigned length1) {
return (std::max(start0, start1) < std::min(start0 + length0, start1 + length1));
}
template <class T> template <class T>
struct Rectangle { struct Rectangle {
@ -24,16 +18,16 @@ struct Rectangle {
T right{}; T right{};
T bottom{}; T bottom{};
Rectangle() = default; constexpr Rectangle() = default;
Rectangle(T left, T top, T right, T bottom) constexpr Rectangle(T left, T top, T right, T bottom)
: left(left), top(top), right(right), bottom(bottom) {} : left(left), top(top), right(right), bottom(bottom) {}
T GetWidth() const { T GetWidth() const {
return std::abs(static_cast<typename std::make_signed<T>::type>(right - left)); return std::abs(static_cast<std::make_signed_t<T>>(right - left));
} }
T GetHeight() const { T GetHeight() const {
return std::abs(static_cast<typename std::make_signed<T>::type>(bottom - top)); return std::abs(static_cast<std::make_signed_t<T>>(bottom - top));
} }
Rectangle<T> TranslateX(const T x) const { Rectangle<T> TranslateX(const T x) const {
return Rectangle{left + x, top, right + x, bottom}; return Rectangle{left + x, top, right + x, bottom};