修改游戏底层矩阵相关

source/math/Vec2.hpp

@@ -0,0 +1,136 @@
+// Copyright (c) 2016-2018 Ember - Nomango
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma once
+#include <math/Scalar.h>
+
+namespace ember
+{
+    namespace math
+    {
+        template <typename _Ty>
+        struct Vec2T
+        {
+            using ValueType = _Ty;
+
+            ValueType x;
+            ValueType y;
+
+            Vec2T()
+                : x(ValueType(0)), y(ValueType(0))
+            {
+            }
+
+            Vec2T(ValueType x, ValueType y)
+                : x(x), y(y)
+            {
+            }
+
+            Vec2T(const Vec2T &other)
+                : x(other.x), y(other.y)
+            {
+            }
+
+            inline ValueType Length() const
+            {
+                return static_cast<ValueType>(math::Sqrt(static_cast<float>(x * x + y * y)));
+            }
+
+            inline bool IsOrigin() const
+            {
+                return (x == 0) && (y == 0);
+            }
+
+            inline void Set(ValueType x, ValueType y)
+            {
+                this->x = x;
+                this->y = y;
+            }
+
+            inline const Vec2T operator+(const Vec2T &other) const
+            {
+                return Vec2T(x + other.x, y + other.y);
+            }
+
+            inline const Vec2T operator-(const Vec2T &other) const
+            {
+                return Vec2T(x - other.x, y - other.y);
+            }
+
+            inline const Vec2T operator*(ValueType val) const
+            {
+                return Vec2T(x * val, y * val);
+            }
+
+            inline const Vec2T operator*(const Vec2T &other) const
+            {
+                return Vec2T(x * other.x, y * other.y);
+            }
+
+            inline const Vec2T operator/(ValueType val) const
+            {
+                return Vec2T(x / val, y / val);
+            }
+
+            inline const Vec2T operator-() const
+            {
+                return Vec2T(-x, -y);
+            }
+
+            inline Vec2T &operator+=(const Vec2T &other)
+            {
+                x += other.x;
+                y += other.y;
+                return (*this);
+            }
+
+            inline Vec2T &operator-=(const Vec2T &other)
+            {
+                x -= other.x;
+                y -= other.y;
+                return (*this);
+            }
+
+            inline Vec2T &operator*=(ValueType val)
+            {
+                x *= val;
+                y *= val;
+                return (*this);
+            }
+
+            inline Vec2T &operator/=(ValueType val)
+            {
+                x /= val;
+                y /= val;
+                return (*this);
+            }
+
+            inline bool operator==(const Vec2T &other) const
+            {
+                return (x == other.x) && (y == other.y);
+            }
+
+            inline bool operator!=(const Vec2T &other) const
+            {
+                return (x != other.x) || (y != other.y);
+            }
+        };
+    } // namespace math
+} // namespace ember