From bad78945ceba425f6a80e3b8dca2414d592970eb Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Fri, 2 Aug 2019 20:51:00 +0800
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---
 source/modules/asura-utils/Math/Matrix44.h | 98 ++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 source/modules/asura-utils/Math/Matrix44.h

(limited to 'source/modules/asura-utils/Math/Matrix44.h')

diff --git a/source/modules/asura-utils/Math/Matrix44.h b/source/modules/asura-utils/Math/Matrix44.h
new file mode 100644
index 0000000..7b66920
--- /dev/null
+++ b/source/modules/asura-utils/Math/Matrix44.h
@@ -0,0 +1,98 @@
+#ifndef _ASURA_MATRIX_H_
+#define _ASURA_MATRIX_H_
+
+#include "../Scripting/Portable.hpp"
+
+namespace AsuraEngine
+{
+	namespace Math
+	{
+
+		/// 
+		/// 不需要转置的OpenGL矩阵，类似glm::mat4。
+		/// https://blog.csdn.net/candycat1992/article/details/8830894
+		///
+		class Matrix44
+		{
+		public:
+
+			static const Matrix44 Identity;
+
+			Matrix44();
+
+			Matrix44(const Matrix44& m);
+
+			~Matrix44();
+
+			void operator = (const Matrix44& m);
+
+			void SetOrtho(float _left, float _right, float _bottom, float _top, float _near, float _far);
+
+			Matrix44 operator * (const Matrix44 & m) const;
+
+			void operator *= (const Matrix44 & m);
+
+			const float* GetElements() const;
+
+			void SetIdentity();
+
+			void SetTranslation(float x, float y);
+
+			void SetRotation(float r);
+
+			void SetScale(float sx, float sy);
+
+			void SetShear(float kx, float ky);
+
+			void SetTransformation(float x, float y, float angle, float sx, float sy, float ox, float oy);
+
+			void Translate(float x, float y);
+
+			void Rotate(float r);
+
+			void Scale(float sx, float sy);
+
+			void Transform(float x, float y, float angle, float sx, float sy, float ox, float oy);
+
+			/// 
+			/// Multiplies this Matrix44 with a shear transformation.
+			/// @param kx Shear along the x-axis.
+			/// @param ky Shear along the y-axis.
+			/// 
+			void Shear(float kx, float ky);
+
+			void Ortho(float left, float right, float bottom, float top, float near, float far);
+
+			///// 
+			///// Transforms an array of vertices by this Matrix44. The sources and
+			///// destination arrays may be the same.
+			/////
+			///// @param dst Storage for the transformed vertices.
+			///// @param src The source vertices.
+			///// @param size The number of vertices.
+			///// 
+			//void transform(Graphics::Vertex* dst, const Graphics::Vertex * src, int size) const;
+
+			///
+			/// 计算行列式
+			///
+			float Calculate();
+
+		private:
+
+			/// 
+			/// | e0 e4 e8  e12 |
+			/// | e1 e5 e9  e13 |
+			/// | e2 e6 e10 e14 |
+			/// | e3 e7 e11 e15 |
+			///
+			float e[16];
+
+		};
+
+	} 
+} 
+
+namespace AEMath = AsuraEngine::Math;
+
+#endif
\ No newline at end of file
-- 
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