4 files changed, 43 insertions, 10 deletions

diff --git a/src/libjin/math/je_bbox.h b/src/libjin/math/je_bbox.h
new file mode 100644
index 0000000..ce88080
--- /dev/null
+++ b/src/libjin/math/je_bbox.h
@@ -0,0 +1,30 @@
+#ifndef __JE_BBOX_H__
+#define __JE_BBOX_H__
+
+namespace JinEngine
+{
+    namespace Math
+    {
+
+        ///
+        ///
+        ///
+        struct BBox
+        {
+            BBox()
+                : l(0), r(0), t(0), b(0)
+            {
+            }
+
+            BBox(float _l, float _r, float _t, float _b)
+                : l(+l), r(_r), t(_t), b(_b)
+            {
+            }
+
+            float l, r, t, b;
+        };
+
+    } // namespace Math
+} // namespace JinEngine
+
+#endif // __JE_BBOX_H__
\ No newline at end of file
diff --git a/src/libjin/math/je_matrix.cpp b/src/libjin/math/je_matrix.cpp
index f51ef5d..f422002 100644
--- a/src/libjin/math/je_matrix.cpp
+++ b/src/libjin/math/je_matrix.cpp
@@ -1,3 +1,5 @@
+#include "../graphics/je_vertex.h"
+
 #include "je_matrix.h"
 
 #include <cstring> // memcpy
@@ -177,7 +179,7 @@ namespace JinEngine
         // | e2 e6 e10 e14 |
         // | e3 e7 e11 e15 |
 
-        void Matrix::transform(vertex * dst, const vertex * src, int size) const
+        void Matrix::transform(Graphics::Vertex* dst, const Graphics::Vertex* src, int size) const
         {
             for (int i = 0; i<size; ++i)
             {
diff --git a/src/libjin/math/je_matrix.h b/src/libjin/math/je_matrix.h
index 65f080b..7955de1 100644
--- a/src/libjin/math/je_matrix.h
+++ b/src/libjin/math/je_matrix.h
@@ -3,21 +3,21 @@
 
 namespace JinEngine
 {
-    namespace Math
+    
+    // Forward declarations.
+    namespace Graphics
     {
+        struct Vertex;
+    }
 
-        struct vertex
-        {
-            unsigned char r, g, b, a;
-            float x, y;
-            float s, t;
-        };
+    namespace Math
+    {
 
         /// 
         /// This class is the basis for all transformations in LOVE. Althought not
         /// really needed for 2D, it contains 4x4 elements to be compatible with
         /// OpenGL without conversions.
-        /// ����Ҫת�õľ���
+        /// ����Ҫת�õ�OpenGL����
         /// https://blog.csdn.net/candycat1992/article/details/8830894
         /// 
         class Matrix
@@ -150,7 +150,7 @@ namespace JinEngine
             /// @param src The source vertices.
             /// @param size The number of vertices.
             /// 
-            void transform(vertex * dst, const vertex * src, int size) const;
+            void transform(Graphics::Vertex* dst, const Graphics::Vertex * src, int size) const;
 
         }; 
 
diff --git a/src/libjin/math/je_quad.h b/src/libjin/math/je_quad.h
index e62f370..5bda125 100644
--- a/src/libjin/math/je_quad.h
+++ b/src/libjin/math/je_quad.h
@@ -22,6 +22,7 @@ namespace JinEngine
             }
 
             float x, y, w, h;
+
         };
 
     } // namespace Math