155 lines
4.9 KiB
C++
155 lines
4.9 KiB
C++
// Copyright (c) 2016-2018 Ember - Nomango
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#pragma once
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#include <math/Vec2.hpp>
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namespace ember
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{
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namespace math
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{
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template <typename _Ty>
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struct RectT
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{
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public:
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using ValueType = _Ty;
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Vec2T<ValueType> left_top;
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Vec2T<ValueType> right_bottom;
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public:
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RectT() {}
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RectT(ValueType left, ValueType top, ValueType right, ValueType bottom)
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: left_top(left, top), right_bottom(right, bottom)
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{
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}
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RectT(const Vec2T<ValueType> &left_top, const Vec2T<ValueType> &right_bottom)
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: left_top(left_top), right_bottom(right_bottom)
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{
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}
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RectT(const RectT &other)
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: left_top(other.left_top), right_bottom(other.right_bottom)
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{
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}
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RectT &operator=(const RectT &other)
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{
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left_top = other.left_top;
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right_bottom = other.right_bottom;
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return *this;
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}
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inline bool operator==(const RectT &rect) const
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{
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return (left_top == rect.left_top) && (right_bottom == rect.right_bottom);
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}
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inline void Set(ValueType left, ValueType top, ValueType right, ValueType bottom)
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{
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left_top = Vec2T<ValueType>{left, top};
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right_bottom = Vec2T<ValueType>{right, bottom};
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}
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inline Vec2T<ValueType> GetCenter() const
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{
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return Vec2T<ValueType>{(left_top.x + right_bottom.x) / 2, (left_top.y + right_bottom.y) / 2};
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}
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inline Vec2T<ValueType> GetLeftTop() const
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{
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return left_top;
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}
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inline Vec2T<ValueType> GetRightBottom() const
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{
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return right_bottom;
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}
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inline Vec2T<ValueType> GetRightTop() const
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{
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return Vec2T<ValueType>{right_bottom.x, left_top.y};
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}
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inline Vec2T<ValueType> GetLeftBottom() const
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{
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return Vec2T<ValueType>{left_top.x, right_bottom.y};
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}
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inline ValueType GetLeft() const
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{
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return left_top.x;
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}
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inline ValueType GetTop() const
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{
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return left_top.y;
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}
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inline ValueType GetRight() const
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{
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return right_bottom.x;
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}
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inline ValueType GetBottom() const
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{
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return right_bottom.y;
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}
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inline ValueType GetWidth() const
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{
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return right_bottom.x - left_top.x;
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}
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inline ValueType GetHeight() const
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{
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return right_bottom.y - left_top.y;
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}
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inline Vec2T<ValueType> GetSize() const
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{
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return Vec2T<ValueType>{GetWidth(), GetHeight()};
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}
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inline bool IsEmpty() const
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{
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return left_top.IsOrigin() && right_bottom.IsOrigin();
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}
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inline bool ContainsPoint(const Vec2T<ValueType> &point) const
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{
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return point.x >= left_top.x && point.x <= right_bottom.x && point.y >= left_top.y && point.y <= right_bottom.y;
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}
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inline bool Intersects(const RectT &rect) const
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{
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return !(right_bottom.x < rect.left_top.x || rect.right_bottom.x < left_top.x || right_bottom.y < rect.left_top.y || rect.right_bottom.y < left_top.y);
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}
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static inline RectT Infinite()
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{
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return RectT{-math::FLOAT_MAX, -math::FLOAT_MAX, math::FLOAT_MAX, math::FLOAT_MAX};
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}
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};
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} // namespace math
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} // namespace ember
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