Added: #1469 factory for step player

--HG--
branch : gsoc2012-fabien

code/ryzom/client/src/camera_animation_manager/camera_animation_player.h

@@ -24,9 +24,7 @@
 
 /************************************************************************/
 /* Class that manages the camera animations. (singleton).
- * It's responsible of :
- * - Parsing camera animations in primitives
- * - Sending a specified animation to the client
+ * It's responsible of playing camera animations
  * 
  * \author Fabien Henon
  * \date 2012

code/ryzom/client/src/camera_animation_manager/camera_animation_step_player_factory.cpp

@@ -0,0 +1,54 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+// 
+
+#include "camera_animation_manager/camera_animation_step_player_factory.h"
+
+std::vector<std::pair<std::string, ICameraAnimationStepPlayerFactory*> >* ICameraAnimationStepPlayerFactory::Entries;
+
+ICameraAnimationStepPlayer* ICameraAnimationStepPlayerFactory::initStep(const std::string& name, NLMISC::CBitMemStream& impulse)
+{
+	// We search the correct step type in our entries
+	for (uint i = 0; i < Entries->size(); i++)
+	{
+		if (name == (*Entries)[i].first)
+		{
+			ICameraAnimationStepPlayer* ret = (*Entries)[i].second->instanciate();
+			if (!ret)
+			{
+				nlerror("BUG IN CAMERA ANIMATION STEP PLAYER FACTORY : BAD INIT CODE");
+				return NULL;
+			}
+			// We init the step
+			if (!ret->initStep(impulse))
+			{
+				nlerror("building camera animation step player failed");
+				delete ret;
+				return NULL;
+			}
+
+			return ret;
+		}
+	}
+	return NULL;
+}
+
+void ICameraAnimationStepPlayerFactory::init()
+{
+	if (!Entries)
+		Entries = new std::vector<std::pair<std::string, ICameraAnimationStepPlayerFactory*> >;
+}
+

code/ryzom/client/src/camera_animation_manager/camera_animation_step_player_factory.h

@@ -0,0 +1,84 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef RY_CAMERAANIMATIONSTEPPLAYERFACTORY_H
+#define RY_CAMERAANIMATIONSTEPPLAYERFACTORY_H
+
+#include <string>
+#include <vector>
+#include "nel\misc\bit_mem_stream.h"
+
+/************************************************************************/
+/* Interface for camera animation steps.
+ * It has to be able to parse the step from an impulse and to play it
+ */
+/************************************************************************/
+class ICameraAnimationStepPlayer
+{
+public:
+	/// This function is called when it's time to init the step from an impulse
+	virtual bool initStep(NLMISC::CBitMemStream& impulse) = 0;
+
+	/// Function that plays the step
+	virtual void playStep() = 0;
+
+protected:
+};
+
+/************************************************************************/
+/* Factory class that can instanciate the correct camera animation step player.
+ * 
+ * \author Fabien Henon
+ * \date 2012
+ */
+/************************************************************************/
+class ICameraAnimationStepPlayerFactory
+{
+public:
+	/// Function that will instanciate the correct camera animation step player in function of the step name
+	static ICameraAnimationStepPlayer* initStep(const std::string& name, NLMISC::CBitMemStream& impulse);
+protected:
+
+	/// Functions used to be able to create the camera animation steps players
+	static void init();
+	virtual ICameraAnimationStepPlayer* instanciate() = 0;
+	static std::vector<std::pair<std::string, ICameraAnimationStepPlayerFactory*> >* Entries;
+};
+
+// Define used to register the different types of camera animation steps players
+#define CAMERA_ANIMATION_REGISTER_STEP_PLAYER(_class_,_name_) \
+class _class_##CameraAnimationStepPlayerFactory : public ICameraAnimationStepPlayerFactory \
+{\
+public:\
+	_class_##CameraAnimationStepPlayerFactory()\
+{\
+	init();\
+	std::string str = std::string(_name_); \
+	for (uint i = 0; i < (*Entries).size(); i++ ) \
+{\
+	if ( (*Entries)[i].first == str || (*Entries)[i].second == this )nlstop;\
+}\
+	(*Entries).push_back( std::make_pair( str, this ) );\
+}\
+	ICameraAnimationStepPlayer* instanciate()\
+{ \
+	return new _class_;\
+} \
+};\
+	static _class_##CameraAnimationStepPlayerFactory* _class_##CameraAnimationStepPlayerFactoryInstance = new _class_##CameraAnimationStepPlayerFactory;
+
+
+#endif /* RY_CAMERAANIMATIONSTEPPLAYERFACTORY_H */