Initial commit: client source

source/EterLib/GrpRatioInstance.cpp

@@ -0,0 +1,67 @@
+#include "StdAfx.h"
+#include "GrpRatioInstance.h"
+#include "../eterBase/Timer.h"
+
+CGraphicRatioInstance::CGraphicRatioInstance()
+{
+	m_baseTime = 0;
+	m_blendTime = 0;
+}
+
+CGraphicRatioInstance::~CGraphicRatioInstance()
+{
+}
+
+void CGraphicRatioInstance::Clear()
+{
+	m_curRatio = 0.0f;
+	m_srcRatio = 0.0f;
+	m_dstRatio = 0.0f;
+
+	m_baseTime = 0;
+	m_blendTime = 0;
+}
+
+void CGraphicRatioInstance::SetRatioReference(const float& c_rRatio)
+{
+	m_curRatio = c_rRatio;	
+	m_srcRatio = m_curRatio;
+	m_dstRatio = m_curRatio;
+}
+
+void CGraphicRatioInstance::BlendRatioReference(DWORD blendTime, const float& c_rDstRatio)
+{
+	m_baseTime = GetTime();
+	m_blendTime = blendTime;
+
+	m_srcRatio = m_curRatio;
+	m_dstRatio = c_rDstRatio;
+}
+
+void CGraphicRatioInstance::Update()
+{
+	DWORD curTime = GetTime();
+	DWORD elapsedTime = curTime - m_baseTime;
+
+	if (elapsedTime < m_blendTime)
+	{
+		float diff = m_dstRatio - m_srcRatio;
+		float rate = elapsedTime / float(m_blendTime);
+		m_curRatio = diff * rate + m_srcRatio;	
+	}
+	else
+	{
+		m_curRatio = m_dstRatio;
+	}
+}
+
+DWORD CGraphicRatioInstance::GetTime()
+{
+	return CTimer::Instance().GetCurrentMillisecond();
+}
+
+const float& CGraphicRatioInstance::GetCurrentRatioReference() const
+{
+	return m_curRatio;
+}
+