cyphesis/server/ScriptFactory.cpp
Al Riddoch 9310b52de3 2005-05-15 Al Riddoch <alriddoch@zepler.org>
* rulesets/mason/world/objects/tools/Rope.py: Correct the syntax
	  of stub functions.

	* rulesets/basic/world/objects/buildings/StoneHouse.py: Fix the import
	  statements.

	* rulesets/basic/world/objects/buildings/House.py: Fix import for
	  physics module.

	* rulesets/basic/mind/goals/common/misc_goal.py: Fix typo in
	  cut_something.

	* server/ScriptFactory.cpp, server/ScriptFactory.h: New factory
	  class for handling python scripts for entities much more
	  efficiently, and provide a means where they can be re-imorted
	  at an apropriate time.

	* server/PersistantThingFactory.h,
	  server/PersistantThingFactory.cpp: Make PersistantThingFactory
	  copy constructor protected, to ensure its not used accidentally.
	  Replace strings for storing python script data with a pointer
	  to a factory for creating scripts.

	* server/EntityFactory.cpp: Use the new ScriptFactory mechnism
	  for creating scripts attached to entities. Improve variable
	  names a little.
2005-05-15 00:54:08 +00:00

107 lines
2.9 KiB
C++

// This file may be redistributed and modified only under the terms of
// the GNU General Public License (See COPYING for details).
// Copyright (C) 2005 Alistair Riddoch
#include "ScriptFactory.h"
#include "rulesets/Py_Thing.h"
#include "rulesets/Python_Script_Utils.h"
#include "rulesets/PythonThingScript.h"
#include "rulesets/Entity.h"
#include "common/log.h"
ScriptFactory::ScriptFactory(const std::string & package,
const std::string & type) : m_package(package),
m_type(type)
{
}
ScriptFactory::~ScriptFactory()
{
}
int PythonScriptFactory::getClass()
{
std::string classname(m_type);
classname[0] = toupper(classname[0]);
m_class = PyObject_GetAttrString(m_module, (char *)classname.c_str());
if (m_class == NULL) {
std::string msg = std::string("Could not find python class ")
+ m_package + "." + classname;
log(ERROR, msg.c_str());
PyErr_Print();
return -1;
}
if (PyCallable_Check(m_class) == 0) {
std::string msg = std::string("Could not instance python class ")
+ m_package + "." + classname;
log(ERROR, msg.c_str());
Py_DECREF(m_class);
m_class = 0;
return -1;
}
return 0;
}
PythonScriptFactory::PythonScriptFactory(const std::string & package,
const std::string & type) :
ScriptFactory(package, type),
m_module(0), m_class(0)
{
PyObject * package_name = PyString_FromString((char *)m_package.c_str());
m_module = PyImport_Import(package_name);
Py_DECREF(package_name);
if (m_module == NULL) {
std::string msg = std::string("Missing python module ") + m_package;
log(ERROR, msg.c_str());
PyErr_Print();
return;
}
getClass();
}
PythonScriptFactory::~PythonScriptFactory()
{
if (m_class != 0) {
Py_DECREF(m_class);
}
if (m_module != 0) {
Py_DECREF(m_module);
}
}
int PythonScriptFactory::addScript(Entity * entity)
{
if (m_class == 0) {
return -1;
}
PyEntity * pyEntity = newPyEntity();
pyEntity->m_entity = entity;
Subscribe_Script(entity, m_class, m_package);
PyObject * script = Create_PyScript((PyObject *)pyEntity, m_class);
if (script == NULL) {
return -1;
}
entity->setScript(new PythonEntityScript(script, *entity));
return 0;
}
int PythonScriptFactory::refreshClass()
{
if (m_module == 0) {
return -1;
}
PyObject * new_module = PyImport_ReloadModule(m_module);
if (new_module == 0) {
std::string msg = std::string("Error reloading python module ")
+ m_package;
log(ERROR, msg.c_str());
return -1;
}
return getClass();
}