diff --git a/Sources/libewol/ewol/Game/GameElement.cpp b/Sources/libewol/ewol/Game/GameElement.cpp
new file mode 100644
index 00000000..04a58b51
--- /dev/null
+++ b/Sources/libewol/ewol/Game/GameElement.cpp
@@ -0,0 +1,125 @@
+/**
+ *******************************************************************************
+ * @file ewol/Game/GameElement.cpp
+ * @brief ewol game element system (Sources)
+ * @author Edouard DUPIN
+ * @date 06/04/2012
+ * @par Project
+ * ewol
+ *
+ * @par Copyright
+ * Copyright 2011 Edouard DUPIN, all right reserved
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY.
+ *
+ * Licence summary : 
+ *    You can modify and redistribute the sources code and binaries.
+ *    You can send me the bug-fix
+ *
+ * Term of the licence in in the file licence.txt.
+ *
+ *******************************************************************************
+ */
+
+
+#include <ewol/Game/GameElement.h>
+
+
+/**
+ * @brief Constructor : here are requested all the needed sprite and effect that can be used in the game
+ * @param ---
+ * @return ---
+ */
+ewol::GameElement::GameElement(void)
+{
+	m_visible = true;
+	m_position.x = 0.0;
+	m_position.y = 0.0;
+	m_acceleration.x = 0.0;
+	m_acceleration.y = 0.0;
+	m_size = 64.0;
+	m_angle = 0.0;
+}
+
+
+/**
+ * @brief Destructor : This does not remove the sprite requested, they will be supressed when the scene is removed ...
+ * @param ---
+ * @return ---
+ */
+ewol::GameElement::~GameElement(void)
+{
+	
+}
+
+
+/**
+ * @brief Periodicly this fuction will be call tu change property of all the dynamic obbjects
+ * @param[in] time Current game time (start at 0)
+ * @param[in] deltaTime delta time before the previous call
+ * @param[in,out] listOfSprite Reference on the list where the display must be done for every sprite
+ * @param[in,out] listOfEffects Reference on the list where the display must be done for every effects
+ * @return true if the object must be remove
+ * @return false if the object must be keep
+ */
+bool ewol::GameElement::Process(int64_t time, int32_t deltaTime, etk::VectorType<ewol::GameElement*> & listOfElement)
+{
+	// nothing to do here ...
+	return false;
+}
+
+
+/**
+ * @brief Requuest the draw of the current element, it will be done on the current Sprite list
+ * @param[in,out] listOfSprite Reference on the list where the display must be done for every sprite
+ * @param[in,out] listOfEffects Reference on the list where the display must be done for every effects
+ * @return ---
+ */
+void ewol::GameElement::Draw(etk::VectorType<ewol::Sprite*> & listOfSprite, etk::VectorType<ewol::Sprite*> & listOfEffects)
+{
+	// nothing to do here ...
+}
+
+
+/**
+ * @brief an element has been remove, just remove reference on it or ID on IT, it can be replace whith an other that have no link
+ * @param[in] idOfElement Id of the element that has been removed
+ * @return ---
+ */
+void ewol::GameElement::RemoveElement(int32_t idOfElement)
+{
+	// nothing to do here ...
+}
+
+
+/**
+ * @brief Requuest the draw of the current element, it will be done on the current Sprite list
+ * @param[in,out] listOfElement Reference on the list of sprite that we need to find if it exist or added a new one
+ * @param[in] fileName Sprite name
+ * @param[in] maxSize maximum size of the sprite
+ * @return the id of the sprite requested or -1 if it does not existed
+ */
+int32_t ewol::GameElement::LoadSprite(etk::VectorType<ewol::Sprite*> listOfElement[NB_BOUBLE_BUFFER], etk::UString fileName, coord2D_ts maxSize)
+{
+	for (int32_t iii=0; iii<listOfElement[0].Size(); iii++) {
+		if (listOfElement[0][iii] != NULL) {
+			if (listOfElement[0][iii]->HasName(fileName) == true) {
+				// TODO : control the size ...
+				return iii;
+			}
+		}
+	}
+	for(int32_t iii=0; iii<NB_BOUBLE_BUFFER; iii++) {
+		// we did not find the sprite ==> created it ...
+		ewol::Sprite* tmpSprite = new ewol::Sprite(fileName, maxSize.x, maxSize.y);
+		if (NULL == tmpSprite) {
+			EWOL_ERROR("Allocation error on the sprite : " << fileName);
+			return -1;
+		}
+		// add it : 
+		listOfElement[iii].PushBack(tmpSprite);
+	}
+	return listOfElement[0].Size() -1;
+}
+
diff --git a/Sources/libewol/ewol/Game/GameElement.h b/Sources/libewol/ewol/Game/GameElement.h
new file mode 100644
index 00000000..ed5e2732
--- /dev/null
+++ b/Sources/libewol/ewol/Game/GameElement.h
@@ -0,0 +1,65 @@
+/**
+ *******************************************************************************
+ * @file ewol/Game/GameElement.h
+ * @brief ewol game element system (header)
+ * @author Edouard DUPIN
+ * @date 06/04/2012
+ * @par Project
+ * ewol
+ *
+ * @par Copyright
+ * Copyright 2011 Edouard DUPIN, all right reserved
+ *
+ * This software is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY.
+ *
+ * Licence summary : 
+ *    You can modify and redistribute the sources code and binaries.
+ *    You can send me the bug-fix
+ *
+ * Term of the licence in in the file licence.txt.
+ *
+ *******************************************************************************
+ */
+
+#ifndef __EWOL_GAME_ELEMENT_H__
+#define __EWOL_GAME_ELEMENT_H__
+
+#include <etk/Types.h>
+#include <ewol/Debug.h>
+#include <ewol/OObject/Sprite.h>
+#include <ewol/Widget.h>
+
+
+namespace ewol {
+	class GameElement
+	{
+		protected:
+			bool       m_visible;
+			coord2D_ts m_position;
+			coord2D_ts m_acceleration;
+			etkFloat_t m_size;
+			etkFloat_t m_angle;
+		public:
+			                    GameElement(void);
+			virtual             ~GameElement(void);
+			        bool        IsVisible(void)                                { return m_visible; };
+			        void        SetVisible(bool state)                         { m_visible = state; };
+			        coord2D_ts  PositionGet(void)                              { return m_position; };
+			        void        PositionSet(coord2D_ts state)                  { m_position = state; };
+			        void        PositionSet(etkFloat_t xxx, etkFloat_t yyy)    { m_position.x = xxx; m_position.y = yyy; };
+			        coord2D_ts  AccelerationGet(void)                          { return m_acceleration; };
+			        void        AccelerationSet(coord2D_ts state)              { m_acceleration = state; };
+			        etkFloat_t  SizeGet(void)                                  { return m_size; };
+			        void        SizeSet(etkFloat_t state)                      { m_size = state; };
+			        etkFloat_t  AngleGet(void)                                 { return m_angle; };
+			        void        AngleSet(etkFloat_t state)                     { m_angle = state; };
+			virtual bool        Process(int64_t time, int32_t deltaTime, etk::VectorType<ewol::GameElement*> & listOfElement);
+			virtual void        Draw(etk::VectorType<ewol::Sprite*> & listOfSprite, etk::VectorType<ewol::Sprite*> & listOfEffects);
+			virtual void        RemoveElement(int32_t idOfElement);
+					int32_t     LoadSprite(etk::VectorType<ewol::Sprite*> listOfElement[NB_BOUBLE_BUFFER], etk::UString fileName, coord2D_ts maxSize);
+	};
+	
+};
+
+#endif
diff --git a/Sources/libewol/ewol/OObject/Sprite.cpp b/Sources/libewol/ewol/OObject/Sprite.cpp
index 6ed81b9b..34215aa2 100644
--- a/Sources/libewol/ewol/OObject/Sprite.cpp
+++ b/Sources/libewol/ewol/OObject/Sprite.cpp
@@ -25,6 +25,7 @@
 #include <ewol/OObject/Sprite.h>
 #include <ewol/Texture.h>
 #include <ewol/importgl.h>
+#include <math.h>
 
 #undef __class__
 #define __class__	"Sprite"
@@ -53,7 +54,7 @@ ewol::Sprite::~Sprite(void)
 void ewol::Sprite::Draw(void)
 {
 	if (m_coord.Size()<=0) {
-		EWOL_WARNING("Nothink to draw...");
+		//EWOL_WARNING("Nothink to draw...");
 		return;
 	}
 	if (m_textureId == -1) {
@@ -75,56 +76,56 @@ void ewol::Sprite::Draw(void)
 	glDisable(GL_TEXTURE_2D);
 }
 
-void ewol::Sprite::Rectangle(etkFloat_t x, etkFloat_t y, etkFloat_t w, etkFloat_t h, etkFloat_t texX, etkFloat_t texY, etkFloat_t texSX, etkFloat_t texSY)
+void ewol::Sprite::Clear(void)
 {
-	//EWOL_DEBUG("Add rectangle : ...");
-	coord2D_ts point;
-	texCoord_ts tex;
-
-	tex.u = texX;
-	tex.v = texY;
-	point.x = x;
-	point.y = y;
-	m_coord.PushBack(point);
-	m_coordTex.PushBack(tex);
-
-
-	tex.u = texSX;
-	tex.v = texY;
-	point.x = x + w;
-	point.y = y;
-	m_coord.PushBack(point);
-	m_coordTex.PushBack(tex);
-
-
-	tex.u = texSX;
-	tex.v = texSY;
-	point.x = x + w;
-	point.y = y + h;
-	m_coord.PushBack(point);
-	m_coordTex.PushBack(tex);
-
-	m_coord.PushBack(point);
-	m_coordTex.PushBack(tex);
-
-	tex.u = texX;
-	tex.v = texSY;
-	point.x = x;
-	point.y = y + h;
-	m_coord.PushBack(point);
-	m_coordTex.PushBack(tex);
-
-	tex.u = texX;
-	tex.v = texY;
-	point.x = x;
-	point.y = y;
-	m_coord.PushBack(point);
-	m_coordTex.PushBack(tex);
+	m_coord.Clear();
+	m_coordTex.Clear();
 }
 
-
-void Element(coord2D_ts pos, etkFloat_t size, etkFloat_t angle)
+void ewol::Sprite::Element(coord2D_ts pos, etkFloat_t size, etkFloat_t angle)
 {
+	angle -= M_PI/4;
+	size *= 0.7;
+	texCoord_ts texA, texB, texC, texD;
+	texA.u = 0.0;
+	texA.v = 0.0;
+	texB.u = 0.0;
+	texB.v = 1.0;
+	texC.u = 1.0;
+	texC.v = 1.0;
+	texD.u = 1.0;
+	texD.v = 0.0;
 	
+	coord2D_ts point;
+	etkFloat_t yyySin = sin(angle) * size;
+	etkFloat_t xxxCos = cos(angle) * size;
+	
+	point.x = xxxCos + pos.x;
+	point.y = yyySin + pos.y;
+	m_coord.PushBack(point);
+	m_coordTex.PushBack(texB);
+	
+	point.x = yyySin + pos.x;
+	point.y = -xxxCos + pos.y;
+	m_coord.PushBack(point);
+	m_coordTex.PushBack(texC);
+	
+	point.x = -xxxCos + pos.x;
+	point.y = -yyySin + pos.y;
+	m_coord.PushBack(point);
+	m_coordTex.PushBack(texD);
+	
+	m_coord.PushBack(point);
+	m_coordTex.PushBack(texD);
+	
+	point.x = -yyySin + pos.x;
+	point.y = xxxCos + pos.y;
+	m_coord.PushBack(point);
+	m_coordTex.PushBack(texA);
+	
+	point.x = xxxCos + pos.x;
+	point.y = yyySin + pos.y;
+	m_coord.PushBack(point);
+	m_coordTex.PushBack(texB);
 }
 
diff --git a/Sources/libewol/ewol/OObject/Sprite.h b/Sources/libewol/ewol/OObject/Sprite.h
index b187abad..ac981882 100644
--- a/Sources/libewol/ewol/OObject/Sprite.h
+++ b/Sources/libewol/ewol/OObject/Sprite.h
@@ -36,10 +36,10 @@ namespace ewol {
 			Sprite(etk::UString spriteName);
 			Sprite(etk::UString spriteName, etkFloat_t sizeX, etkFloat_t sizeY);
 			virtual ~Sprite(void);
-		public:
 			virtual void Draw(void);
-			void Rectangle(etkFloat_t x, etkFloat_t y, etkFloat_t w, etkFloat_t h, etkFloat_t texX=0.0, etkFloat_t texY=0.0, etkFloat_t texSX=1.0, etkFloat_t texSY=1.0);
+			void Clear(void);
 			void Element(coord2D_ts pos, etkFloat_t size, etkFloat_t angle);
+			bool HasName(etk::UString& name) { return name == m_name; };
 		protected:
 			int32_t                       m_textureId;   //!< texture internal ID
 			etk::VectorType<coord2D_ts>   m_coord;       //!< internal coord of the object
diff --git a/Sources/libewol/ewol/Widget.cpp b/Sources/libewol/ewol/Widget.cpp
index 227d1990..a647e863 100644
--- a/Sources/libewol/ewol/Widget.cpp
+++ b/Sources/libewol/ewol/Widget.cpp
@@ -276,3 +276,17 @@ void ewol::Widget::GenDraw(void)
 	glPopMatrix();
 	return;
 }
+
+/**
+ * @brief Request that the current widegt have a periodic call
+ * @param statusToSet true if the periodic call is needed
+ * @return ---
+ */
+void ewol::Widget::PeriodicCallSet(bool statusToSet)
+{
+	if (true == statusToSet) {
+		ewol::widgetManager::PeriodicCallAdd(this);
+	} else {
+		ewol::widgetManager::PeriodicCallRm(this);
+	}
+}
\ No newline at end of file
diff --git a/Sources/libewol/ewol/Widget.h b/Sources/libewol/ewol/Widget.h
index f2d4d2ef..85b715fd 100644
--- a/Sources/libewol/ewol/Widget.h
+++ b/Sources/libewol/ewol/Widget.h
@@ -317,7 +317,21 @@ namespace ewol {
 			 * @return ---
 			 */
 			virtual void OnLostFocus(void) {};
-		
+		protected:
+			/**
+			 * @brief Request that the current widegt have a periodic call
+			 * @param statusToSet true if the periodic call is needed
+			 * @return ---
+			 */
+			void PeriodicCallSet(bool statusToSet);
+		public:
+			/**
+			 * @brief Periodic call of this widget
+			 * @param localTime curent system time
+			 * @return ---
+			 */
+			virtual void PeriodicCall(int64_t localTime) { };
+			
 		public:
 			/**
 			 * @brief Get the widget at the specific windows absolute position
diff --git a/Sources/libewol/ewol/WidgetManager.cpp b/Sources/libewol/ewol/WidgetManager.cpp
index fd361fe6..688d96d4 100644
--- a/Sources/libewol/ewol/WidgetManager.cpp
+++ b/Sources/libewol/ewol/WidgetManager.cpp
@@ -27,6 +27,7 @@
 #include <ewol/widget/Button.h>
 #include <ewol/widget/ButtonColor.h>
 //#include <ewol/widget/Scene.h>
+#include <etk/VectorType.h>
 
 #undef __class__
 #define __class__	"WidgetManager"
@@ -37,6 +38,8 @@ static bool IsInit = false;
 // For the focus Management
 static ewol::Widget * m_focusWidgetDefault = NULL;
 static ewol::Widget * m_focusWidgetCurrent = NULL;
+static etk::VectorType<ewol::Widget*> l_listOfPeriodicWidget;
+static bool                           l_havePeriodic = false;
 
 void ewol::widgetManager::Init(void)
 {
@@ -47,6 +50,8 @@ void ewol::widgetManager::Init(void)
 	// prevent android error ==> can create memory leak but I prefer
 	m_focusWidgetDefault = NULL;
 	m_focusWidgetCurrent = NULL;
+	l_listOfPeriodicWidget.Clear();
+	l_havePeriodic = false;
 	// init all the widget global parameters :
 	ewol::WIDGET_JoystickInit();
 	ewol::WIDGET_ButtonInit();
@@ -64,12 +69,14 @@ void ewol::widgetManager::UnInit(void)
 	
 	IsInit = false;
 	
+	l_listOfPeriodicWidget.Clear();
 	int ret = pthread_mutex_destroy(&localMutex);
 	EWOL_ASSERT(ret == 0, "Error destroying Mutex ...");
 }
 
 void ewol::widgetManager::Rm(ewol::Widget * newWidget)
 {
+	PeriodicCallRm(newWidget);
 	FocusRemoveIfRemove(newWidget);
 }
 
@@ -160,6 +167,54 @@ void ewol::widgetManager::FocusRemoveIfRemove(ewol::Widget * newWidget)
 }
 
 
+
+void ewol::widgetManager::PeriodicCallAdd(ewol::Widget * pWidget)
+{
+	for (int32_t iii=0; iii < l_listOfPeriodicWidget.Size(); iii++) {
+		if (l_listOfPeriodicWidget[iii] == pWidget) {
+			return;
+		}
+	}
+	for (int32_t iii=0; iii < l_listOfPeriodicWidget.Size(); iii++) {
+		if (NULL == l_listOfPeriodicWidget[iii]) {
+			l_listOfPeriodicWidget[iii] = pWidget;
+			return;
+		}
+	}
+	l_listOfPeriodicWidget.PushBack(pWidget);
+	l_havePeriodic = true;
+}
+
+void ewol::widgetManager::PeriodicCallRm(ewol::Widget * pWidget)
+{
+	int32_t nbElement = 0;
+	for (int32_t iii=0; iii < l_listOfPeriodicWidget.Size(); iii++) {
+		if (l_listOfPeriodicWidget[iii] == pWidget) {
+			l_listOfPeriodicWidget[iii] = NULL;
+		} else {
+			nbElement++;
+		}
+	}
+	if (0 == nbElement) {
+		l_havePeriodic = false;
+	}
+}
+
+void ewol::widgetManager::PeriodicCall(int64_t localTime)
+{
+	for (int32_t iii=0; iii < l_listOfPeriodicWidget.Size(); iii++) {
+		if (NULL != l_listOfPeriodicWidget[iii]) {
+			l_listOfPeriodicWidget[iii]->PeriodicCall(localTime);
+		}
+	}
+}
+
+bool ewol::widgetManager::PeriodicCallHave(void)
+{
+	return l_havePeriodic;
+}
+
+
 static bool needRedraw = true;
 
 void ewol::widgetManager::DoubleBufferLock(void)
diff --git a/Sources/libewol/ewol/WidgetManager.h b/Sources/libewol/ewol/WidgetManager.h
index 06169af4..0e48616f 100644
--- a/Sources/libewol/ewol/WidgetManager.h
+++ b/Sources/libewol/ewol/WidgetManager.h
@@ -44,6 +44,13 @@ namespace ewol {
 		ewol::Widget * FocusGet(       void);
 		void           FocusRemoveIfRemove(ewol::Widget * newWidget);
 		
+		
+		void           PeriodicCallAdd(ewol::Widget * pWidget);
+		void           PeriodicCallRm( ewol::Widget * pWidget);
+		void           PeriodicCall(int64_t localTime);
+		bool           PeriodicCallHave(void);
+		
+		
 		// TODO : Remove this from here ...
 		int32_t GetDoubleBufferCreate(void);
 		int32_t GetDoubleBufferDraw(void);
diff --git a/Sources/libewol/ewol/base/MainThread.cpp b/Sources/libewol/ewol/base/MainThread.cpp
index 979c19a7..e6855a19 100644
--- a/Sources/libewol/ewol/base/MainThread.cpp
+++ b/Sources/libewol/ewol/base/MainThread.cpp
@@ -194,6 +194,10 @@ static void* BaseAppEntry(void* param)
 		}
 		if (0 == ewol::threadMsg::WaitingMessage(androidJniMsg)) {
 			if (countNbEvent > 0) {
+				if(true == ewol::threadMsg::HasDisplayDone(androidJniMsg)) {
+					
+					ewol::widgetManager::PeriodicCall(0);
+				}
 				EWOL_NativeRegenerateDisplay();
 				countNbEvent = 0;
 			}
diff --git a/Sources/libewol/ewol/base/gui.cpp b/Sources/libewol/ewol/base/gui.cpp
index 5ef64305..f36c1a68 100644
--- a/Sources/libewol/ewol/base/gui.cpp
+++ b/Sources/libewol/ewol/base/gui.cpp
@@ -173,6 +173,9 @@ void EWOL_GenericDraw(bool everyTime)
 	if ( (currentTime - startTime) > DISPLAY_PERIODE_MS) {
 		display = true;
 	}
+	if (ewol::widgetManager::PeriodicCallHave()) {
+		everyTime = true;
+	}
 	ewol::widgetManager::DoubleBufferLock();
 	if(    true == ewol::widgetManager::GetDoubleBufferNeedDraw()
 	    || true == everyTime)
diff --git a/Sources/libewol/ewol/threadMsg.cpp b/Sources/libewol/ewol/threadMsg.cpp
index 23e68818..53ceeafb 100644
--- a/Sources/libewol/ewol/threadMsg.cpp
+++ b/Sources/libewol/ewol/threadMsg.cpp
@@ -182,10 +182,31 @@ int32_t ewol::threadMsg::WaitingMessage(threadMsg_ts& messageData)
 
 void ewol::threadMsg::SendDisplayDone(threadMsg_ts& messageData)
 {
+	if (false == messageData.isInit) {
+		return;
+	}
+	pthread_mutex_lock(&messageData.mutex);
+	messageData.displayHasDone = true;
+	pthread_cond_broadcast(&messageData.condition);
+	pthread_mutex_unlock(&messageData.mutex);
 	
 }
 
 
+bool ewol::threadMsg::HasDisplayDone(threadMsg_ts& messageData)
+{
+	if (false == messageData.isInit) {
+		return false;
+	}
+	bool state = false;
+	pthread_mutex_lock(&messageData.mutex);
+	state = messageData.displayHasDone;
+	messageData.displayHasDone = false;;
+	pthread_mutex_unlock(&messageData.mutex);
+	return state;
+}
+
+
 
 #include <sys/time.h>
 
diff --git a/Sources/libewol/ewol/threadMsg.h b/Sources/libewol/ewol/threadMsg.h
index d9790c11..72aaec03 100644
--- a/Sources/libewol/ewol/threadMsg.h
+++ b/Sources/libewol/ewol/threadMsg.h
@@ -65,6 +65,7 @@ namespace ewol {
 		int32_t WaitingMessage(threadMsg_ts& messageData);
 		bool SendMessage(threadMsg_ts& messageData, uint32_t type, msgPriority_te prio = MSG_PRIO_NONE, void * data = NULL, uint32_t size = 0);
 		void SendDisplayDone(threadMsg_ts& messageData);
+		bool HasDisplayDone(threadMsg_ts& messageData);
 	};
 	
 	namespace simpleMsg {
diff --git a/Sources/libewol/ewol/widget/Joystick.cpp b/Sources/libewol/ewol/widget/Joystick.cpp
index 730db92a..33683838 100644
--- a/Sources/libewol/ewol/widget/Joystick.cpp
+++ b/Sources/libewol/ewol/widget/Joystick.cpp
@@ -343,3 +343,17 @@ void ewol::Joystick::Foreground(etk::UString imageNameInData)
 	EWOL_INFO("Set default Joystick Foreground at " << m_foreground);
 }
 
+
+/**
+ * @brief Get the property of the joystick
+ * @param[out] distance distance to the center
+ * @param[out] angle angle of the joy
+ * @return ---
+ */
+void ewol::Joystick::GetProperty(etkFloat_t& distance, etkFloat_t& angle)
+{
+	distance = m_distance;
+	angle = m_angle+M_PI/2;
+}
+
+
diff --git a/Sources/libewol/ewol/widget/Joystick.h b/Sources/libewol/ewol/widget/Joystick.h
index e4fafc46..df08e516 100644
--- a/Sources/libewol/ewol/widget/Joystick.h
+++ b/Sources/libewol/ewol/widget/Joystick.h
@@ -112,6 +112,15 @@ namespace ewol {
 			 * @return ---
 			 */
 			void Foreground(etk::UString imageNameInData);
+			
+			/**
+			 * @brief Get the property of the joystick
+			 * @param[out] distance distance to the center
+			 * @param[out] angle angle of the joy
+			 * @return ---
+			 */
+			void GetProperty(etkFloat_t& distance, etkFloat_t& angle);
+			
 	};
 	
 	/**
diff --git a/Sources/libewol/ewol/widget/Scene.cpp b/Sources/libewol/ewol/widget/Scene.cpp
index 3d1efd08..5ac05ef0 100644
--- a/Sources/libewol/ewol/widget/Scene.cpp
+++ b/Sources/libewol/ewol/widget/Scene.cpp
@@ -45,6 +45,7 @@ void ewol::WIDGET_SceneInit(void)
 ewol::Scene::Scene(void)
 {
 	SetCanHaveFocus(true);
+	PeriodicCallSet(true);
 }
 
 
@@ -95,5 +96,85 @@ const char * const ewol::Scene::GetObjectType(void)
 void ewol::Scene::OnRegenerateDisplay(void)
 {
 	if (true == NeedRedraw()) {
+		// clean elements
+		for (int32_t iii=0; iii<m_animated[m_currentCreateId].Size(); iii++) {
+			if (NULL != m_animated[m_currentCreateId][iii]) {
+				m_animated[m_currentCreateId][iii]->Clear();
+			}
+		}
+		// clean effects
+		for (int32_t iii=0; iii<m_effects[m_currentCreateId].Size(); iii++) {
+			if (NULL != m_effects[m_currentCreateId][iii]) {
+				m_effects[m_currentCreateId][iii]->Clear();
+			}
+		}
+		for (int32_t iii=0; iii<m_listAnimatedElements.Size(); iii++) {
+			if (NULL != m_listAnimatedElements[iii]) {
+				// find an empty slot ...
+				m_listAnimatedElements[iii]->Draw(m_animated[m_currentCreateId], m_effects[m_currentCreateId]);
+			}
+		}
 	}
 }
+
+/**
+ * @brief Common widget drawing function (called by the drawing thread [Android, X11, ...])
+ * @param ---
+ * @return ---
+ */
+void ewol::Scene::OnDraw(void)
+{
+	//EWOL_ERROR(" On draw : " << m_currentDrawId);
+	// draw background
+	// TODO : ...
+	// draw elements
+	for (int32_t iii=0; iii<m_animated[m_currentDrawId].Size(); iii++) {
+		if (NULL != m_animated[m_currentDrawId][iii]) {
+			m_animated[m_currentDrawId][iii]->Draw();
+		}
+	}
+	// draw effects
+	for (int32_t iii=0; iii<m_effects[m_currentDrawId].Size(); iii++) {
+		if (NULL != m_effects[m_currentDrawId][iii]) {
+			m_effects[m_currentDrawId][iii]->Draw();
+		}
+	}
+	m_needFlipFlop = true;
+}
+
+
+void ewol::Scene::AddElement(ewol::GameElement* newElement)
+{
+	if (NULL == newElement) {
+		return;
+	}
+	for (int32_t iii=0; iii<m_listAnimatedElements.Size(); iii++) {
+		if (NULL == m_listAnimatedElements[iii]) {
+			// find an empty slot ...
+			m_listAnimatedElements[iii] = newElement;
+			return;
+		}
+	}
+	//did not find empty slot : 
+	m_listAnimatedElements.PushBack(newElement);
+}
+
+
+/**
+ * @brief Periodic call of this widget
+ * @param localTime curent system time
+ * @return ---
+ */
+void ewol::Scene::PeriodicCall(int64_t localTime)
+{
+	//EWOL_ERROR("Periodic Call ... " << localTime);
+	for (int32_t iii=0; iii<m_listAnimatedElements.Size(); iii++) {
+		if (NULL != m_listAnimatedElements[iii]) {
+			// find an empty slot ...
+			m_listAnimatedElements[iii]->Process(localTime, 100, m_listAnimatedElements);
+		}
+	}
+	MarkToReedraw();
+}
+
+
diff --git a/Sources/libewol/ewol/widget/Scene.h b/Sources/libewol/ewol/widget/Scene.h
index 2dbe9c7d..831f8ac5 100644
--- a/Sources/libewol/ewol/widget/Scene.h
+++ b/Sources/libewol/ewol/widget/Scene.h
@@ -27,27 +27,19 @@
 
 #include <etk/Types.h>
 #include <ewol/Debug.h>
-#include <ewol/OObject/Sprite.h>
 #include <ewol/widget/WidgetScrolled.h>
+#include <ewol/OObject/Sprite.h>
+#include <ewol/Game/GameElement.h>
 
 
 namespace ewol {
-	class GameElement
-	{
-		private:
-			bool       m_visible;
-			coord2D_ts m_position;
-		public:
-			         GameElement(void) { m_visible = true; m_position.x=0.0; m_position.y=0.0;};
-			virtual ~GameElement(void) {};
-	};
-	
 	class Scene :public ewol::WidgetScrooled
 	{
 		// TODO : Set it in private ...
 		protected:
 			etk::VectorType<ewol::OObject*> m_backgroundElements[NB_BOUBLE_BUFFER];   //!< element that must be display the first
-			etk::VectorType<ewol::Sprite*> m_backgrouanimatedElements[NB_BOUBLE_BUFFER];   //!< element that must be display the first
+			etk::VectorType<ewol::Sprite*> m_animated[NB_BOUBLE_BUFFER];   //!< element that must be display the first
+			etk::VectorType<ewol::Sprite*> m_effects[NB_BOUBLE_BUFFER];   //!< element that must be display the first
 			etk::VectorType<ewol::GameElement*> m_listAnimatedElements;   //!< generic element to display...
 		public:
 			Scene(void);
@@ -68,6 +60,20 @@ namespace ewol {
 			 */
 			virtual const char * const GetObjectType(void);
 			virtual void OnRegenerateDisplay(void);
+			
+			/**
+			 * @brief Periodic call of this widget
+			 * @param localTime curent system time
+			 * @return ---
+			 */
+			virtual void PeriodicCall(int64_t localTime);
+			/**
+			 * @brief Common widget drawing function (called by the drawing thread [Android, X11, ...])
+			 * @param ---
+			 * @return ---
+			 */
+			virtual void OnDraw(void);
+			void AddElement(ewol::GameElement* newElement);
 	};
 	
 	/**
diff --git a/Sources/libewol/file.mk b/Sources/libewol/file.mk
index 161e0166..0588987c 100644
--- a/Sources/libewol/file.mk
+++ b/Sources/libewol/file.mk
@@ -10,6 +10,7 @@ FILE_LIST = ewol/ewol.cpp \
 			ewol/EObject.cpp \
 			ewol/EObjectManager.cpp \
 			ewol/OObject.cpp \
+			ewol/Game/GameElement.cpp \
 			ewol/OObject/2DText.cpp \
 			ewol/OObject/2DTextColored.cpp \
 			ewol/OObject/2DColored.cpp \
diff --git a/Sources/libparsersvg/parserSVG/Base.cpp b/Sources/libparsersvg/parserSVG/Base.cpp
index 72bbdff9..f6ce1dae 100644
--- a/Sources/libparsersvg/parserSVG/Base.cpp
+++ b/Sources/libparsersvg/parserSVG/Base.cpp
@@ -228,6 +228,61 @@ void svg::Base::ParsePaintAttr(const TiXmlNode *node)
 	if (NULL != content) {
 		m_paint.strokeWidth = ParseLength(content);
 	}
+	content = node->ToElement()->Attribute("opacity");
+	if (NULL != content) {
+		etkFloat_t opacity = ParseLength(content);
+		opacity  = etk_max(0.0, etk_min(1.0, opacity));
+		m_paint.fill.alpha = opacity*0xFF;
+		m_paint.stroke.alpha = opacity*0xFF;
+	}
+	content = node->ToElement()->Attribute("fill-opacity");
+	if (NULL != content) {
+		etkFloat_t opacity = ParseLength(content);
+		opacity  = etk_max(0.0, etk_min(1.0, opacity));
+		m_paint.fill.alpha = opacity*0xFF;
+	}
+	content = node->ToElement()->Attribute("stroke-opacity");
+	if (NULL != content) {
+		etkFloat_t opacity = ParseLength(content);
+		opacity  = etk_max(0.0, etk_min(1.0, opacity));
+		m_paint.stroke.alpha = opacity*0xFF;
+	}
+	content = node->ToElement()->Attribute("fill-rule");
+	if (NULL != content) {
+		if (0 == strcmp(content, "nonzero") ) {
+			m_paint.flagEvenOdd = false;
+		} else if (0 == strcmp(content, "evenodd") ) {
+			m_paint.flagEvenOdd = true;
+		} else {
+			SVG_ERROR("not know fill-rule value : \"" << content << "\", not in [nonzero,evenodd]");
+		}
+	}
+	content = node->ToElement()->Attribute("stroke-linecap");
+	if (NULL != content) {
+		if (0 == strcmp(content, "butt") ) {
+			m_paint.lineCap = svg::LINECAP_BUTT;
+		} else if (0 == strcmp(content, "round") ) {
+			m_paint.lineCap = svg::LINECAP_ROUND;
+		} else if (0 == strcmp(content, "square") ) {
+			m_paint.lineCap = svg::LINECAP_SQUARE;
+		} else {
+			m_paint.lineCap = svg::LINECAP_BUTT;
+			SVG_ERROR("not know stroke-linecap value : \"" << content << "\", not in [butt,round,square]");
+		}
+	}
+	content = node->ToElement()->Attribute("stroke-linejoin");
+	if (NULL != content) {
+		if (0 == strcmp(content, "miter") ) {
+			m_paint.lineJoin = svg::LINEJOIN_MITER;
+		} else if (0 == strcmp(content, "round") ) {
+			m_paint.lineJoin = svg::LINEJOIN_ROUND;
+		} else if (0 == strcmp(content, "bevel") ) {
+			m_paint.lineJoin = svg::LINEJOIN_BEVEL;
+		} else {
+			m_paint.lineJoin = svg::LINEJOIN_MITER;
+			SVG_ERROR("not know stroke-linejoin value : \"" << content << "\", not in [miter,round,bevel]");
+		}
+	}
 	content = node->ToElement()->Attribute("style");
 	if (NULL != content) {
 		char outputType[1024] = "";
@@ -287,6 +342,8 @@ void svg::Base::ParsePaintAttr(const TiXmlNode *node)
 					m_paint.lineJoin = svg::LINEJOIN_MITER;
 					SVG_ERROR("not know  " << outputType << " value : \"" << outputValue << "\", not in [miter,round,bevel]");
 				}
+			} else if (0 == strcmp(outputType, "marker-start") ) {
+				// TODO : ...
 			} else {
 				SVG_ERROR("not know painting element in style balise : \"" << outputType << "\" with value : \"" << outputValue << "\"");
 			}
@@ -491,7 +548,7 @@ color8_ts svg::Base::ParseColor(const char *inputData)
 	uint32_t red, green, blue, alpha;
 	float fred, fgreen, fblue, falpha;
 	size_t len = strlen(inputData);
-
+	
 	if(    len >=1
 	    && inputData[0] == '#') {
 		if(len == 4) {