修改游戏底层矩阵相关

source/math/Transform.hpp

@@ -0,0 +1,86 @@
+// 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/Vec2.hpp>
+#include <math/Matrix.hpp>
+
+namespace ember
+{
+    namespace math
+    {
+
+        /**
+         * \~chinese
+         * @brief ¶þά·ÅÉä±ä»»
+         */
+        template <typename _Ty>
+        class TransformT
+        {
+        public:
+            using ValueType = _Ty;
+
+            float rotation;            ///< Ðýת
+            Vec2T<ValueType> position; ///< ×ø±ê
+            Vec2T<ValueType> scale;    ///< Ëõ·Å
+            Vec2T<ValueType> skew;     ///< ´íÇнǶÈ
+
+        public:
+            TransformT();
+
+            /// \~chinese
+            /// @brief ½«¶þά·ÅÉä±ä»»×ª»»Îª¾ØÕó
+            Matrix3x2T<ValueType> ToMatrix() const;
+
+            bool IsFast() const;
+
+            bool operator==(const TransformT &rhs) const;
+        };
+
+        template <typename _Ty>
+        inline TransformT<_Ty>::TransformT()
+            : position(), rotation(0.f), scale(1.f, 1.f), skew(0.f, 0.f)
+        {
+        }
+
+        template <typename _Ty>
+        Matrix3x2T<_Ty> TransformT<_Ty>::ToMatrix() const
+        {
+            if (!skew.IsOrigin())
+            {
+                return Matrix3x2T<_Ty>::Skewing(skew) * Matrix3x2T<_Ty>::SRT(position, scale, rotation);
+            }
+            return Matrix3x2T<_Ty>::SRT(position, scale, rotation);
+        }
+
+        template <typename _Ty>
+        inline bool TransformT<_Ty>::IsFast() const
+        {
+            return skew.x == 0.f && skew.y == 0.f && scale.x == 1.f && scale.y == 1.f && rotation == 0.f;
+        }
+
+        template <typename _Ty>
+        bool TransformT<_Ty>::operator==(const TransformT &rhs) const
+        {
+            return position == rhs.position && rotation == rhs.rotation && scale == rhs.scale && skew == rhs.skew;
+        }
+
+    } // namespace math
+} // namespace ember