*misc

1 files changed, 61 insertions, 0 deletions

diff --git a/source/modules/asura-core/graphics/matrix_stack.cpp b/source/modules/asura-core/graphics/matrix_stack.cpp
new file mode 100644
index 0000000..72ffb7d
--- /dev/null
+++ b/source/modules/asura-core/graphics/matrix_stack.cpp
@@ -0,0 +1,61 @@
+#include "matrix_stack.h"
+
+namespace AsuraEngine
+{
+	namespace Graphics
+	{
+
+		MatrixStack::MatrixStack()
+			: top(0)
+		{
+			// ջ���������ʼ����ջ�������ô˱�֤ջ��Զ�ǿգ�������ȡֵ��
+			mStack[top].SetIdentity();
+		}
+
+		MatrixStack::~MatrixStack()
+		{
+		}
+
+		void MatrixStack::LoadIdentity()
+		{
+			mStack[top].SetIdentity();
+		}
+
+		bool MatrixStack::Push()
+		{
+			if (top == ASURA_MAX_MATRIX_STACK_DEPTH - 1)
+				return false;
+			++top; 
+			mStack[top] = mStack[top - 1];
+			return true;
+		}
+
+		bool MatrixStack::Pop()
+		{
+			if (top == 0)
+				return false;
+			--top; 
+			return true;
+		}
+
+		AEMath::Matrix44& MatrixStack::GetTop()
+		{
+			return mStack[top];
+		}
+
+		uint MatrixStack::GetTopIndex()
+		{
+			return top; 
+		}
+
+		uint MatrixStack::GetCapacity()
+		{
+			return ASURA_MAX_MATRIX_STACK_DEPTH;
+		}
+
+		void MatrixStack::Ortho(float left, float right, float bottom, float top, float near, float far)
+		{
+		}
+
+	}
+}
\ No newline at end of file