blender/source/gameengine/GameLogic/SCA_PythonController.cpp
Erwin Coumans 2e6d576182 Sorry to break the cvs-closed status, so if you really need to make a new 2.40 build, just disable the game engine if it doesn't compile for a platform. Again, sorry if this breaks non-windows platforms, but I hope people help to get this amazing fix working for all platforms. Armature-fixing contribution from Snailrose. Also lots of cool things from Snailrose and Lagan.
Armatures are back
Split screen
Double sided lightning
Ambient lighting
Alpha test
Material IPO support (one per object atm)
Blender materials
GLSL shaders - Python access
Up to three texture samplers from the material panel ( 2D & Cube map )
Python access to a second set of uv coordinates

See http://www.elysiun.com/forum/viewtopic.php?t=58057
2006-01-06 03:46:54 +00:00

434 lines
11 KiB
C++

/**
* Execute Python scripts
*
* $Id$
*
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
#include "SCA_PythonController.h"
#include "SCA_LogicManager.h"
#include "SCA_ISensor.h"
#include "SCA_IActuator.h"
#include "compile.h"
#include "eval.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
// initialize static member variables
SCA_PythonController* SCA_PythonController::m_sCurrentController = NULL;
SCA_PythonController::SCA_PythonController(SCA_IObject* gameobj,
PyTypeObject* T)
: SCA_IController(gameobj, T),
m_bytecode(NULL),
m_bModified(true),
m_pythondictionary(NULL)
{
}
SCA_PythonController::~SCA_PythonController()
{
if (m_bytecode)
{
//
//printf("released python byte script\n");
Py_DECREF(m_bytecode);
}
if (m_pythondictionary)
{
// break any circular references in the dictionary
PyDict_Clear(m_pythondictionary);
Py_DECREF(m_pythondictionary);
}
}
CValue* SCA_PythonController::GetReplica()
{
SCA_PythonController* replica = new SCA_PythonController(*this);
// Copy the compiled bytecode if possible.
Py_XINCREF(replica->m_bytecode);
replica->m_bModified = replica->m_bytecode == NULL;
// The replica->m_pythondictionary is stolen - replace with a copy.
if (m_pythondictionary)
replica->m_pythondictionary = PyDict_Copy(m_pythondictionary);
/*
// The other option is to incref the replica->m_pythondictionary -
// the replica objects can then share data.
if (m_pythondictionary)
Py_INCREF(replica->m_pythondictionary);
*/
// this will copy properties and so on...
CValue::AddDataToReplica(replica);
return replica;
}
void SCA_PythonController::SetScriptText(const STR_String& text)
{
m_scriptText = "import GameLogic\n" + text;
m_bModified = true;
}
void SCA_PythonController::SetScriptName(const STR_String& name)
{
m_scriptName = name;
}
void SCA_PythonController::SetDictionary(PyObject* pythondictionary)
{
if (m_pythondictionary)
{
PyDict_Clear(m_pythondictionary);
Py_DECREF(m_pythondictionary);
}
m_pythondictionary = PyDict_Copy(pythondictionary); /* new reference */
}
#if 0
static char* sPyGetCurrentController__doc__;
#endif
PyObject* SCA_PythonController::sPyGetCurrentController(PyObject* self,
PyObject* args,
PyObject* kwds)
{
m_sCurrentController->AddRef();
return m_sCurrentController;
}
#if 0
static char* sPyAddActiveActuator__doc__;
#endif
PyObject* SCA_PythonController::sPyAddActiveActuator(
PyObject* self,
PyObject* args,
PyObject* kwds)
{
PyObject* ob1;
int activate;
if (!PyArg_ParseTuple(args, "Oi", &ob1,&activate))
return NULL;
// for safety, todo: only allow for registered actuators (pointertable)
// we don't want to crash gameengine/blender by python scripts
std::vector<SCA_IActuator*> lacts = m_sCurrentController->GetLinkedActuators();
std::vector<SCA_IActuator*>::iterator it;
bool found = false;
CValue* act = (CValue*)ob1;
for(it = lacts.begin(); it!= lacts.end(); it++) {
if( static_cast<SCA_IActuator*>(act) == (*it) ) {
found=true;
break;
}
}
if(found){
CValue* boolval = new CBoolValue(activate!=0);
m_sCurrentLogicManager->AddActiveActuator((SCA_IActuator*)act,boolval);
boolval->Release();
}
Py_INCREF(Py_None);
return Py_None;
}
char* SCA_PythonController::sPyGetCurrentController__doc__ = "getCurrentController()";
char* SCA_PythonController::sPyAddActiveActuator__doc__= "addActiveActuator(actuator,bool)";
char SCA_PythonController::GetActuators_doc[] = "getActuator";
PyTypeObject SCA_PythonController::Type = {
PyObject_HEAD_INIT(&PyType_Type)
0,
"SCA_PythonController",
sizeof(SCA_PythonController),
0,
PyDestructor,
0,
__getattr,
__setattr,
0, //&MyPyCompare,
__repr,
0, //&cvalue_as_number,
0,
0,
0,
0
};
PyParentObject SCA_PythonController::Parents[] = {
&SCA_PythonController::Type,
&SCA_IController::Type,
&CValue::Type,
NULL
};
PyMethodDef SCA_PythonController::Methods[] = {
{"getActuators", (PyCFunction) SCA_PythonController::sPyGetActuators,
METH_VARARGS, SCA_PythonController::GetActuators_doc},
{"getActuator", (PyCFunction) SCA_PythonController::sPyGetActuator,
METH_VARARGS, SCA_PythonController::GetActuator_doc},
{"getSensors", (PyCFunction) SCA_PythonController::sPyGetSensors,
METH_VARARGS, SCA_PythonController::GetSensors_doc},
{"getSensor", (PyCFunction) SCA_PythonController::sPyGetSensor,
METH_VARARGS, SCA_PythonController::GetSensor_doc},
{"getScript", (PyCFunction) SCA_PythonController::sPyGetScript, METH_VARARGS},
{"setScript", (PyCFunction) SCA_PythonController::sPySetScript, METH_VARARGS},
{NULL,NULL} //Sentinel
};
void SCA_PythonController::Trigger(SCA_LogicManager* logicmgr)
{
m_sCurrentController = this;
m_sCurrentLogicManager = logicmgr;
if (m_bModified)
{
// if a script already exists, decref it before replace the pointer to a new script
if (m_bytecode)
{
Py_DECREF(m_bytecode);
m_bytecode=NULL;
}
// recompile the scripttext into bytecode
m_bytecode = Py_CompileString(m_scriptText.Ptr(), m_scriptName.Ptr(), Py_file_input);
if (!m_bytecode)
{
// didn't compile, so instead of compile, complain
// something is wrong, tell the user what went wrong
printf("PYTHON SCRIPT ERROR:\n");
//PyRun_SimpleString(m_scriptText.Ptr());
PyErr_Print();
return;
}
m_bModified=false;
}
/*
* This part here with excdict is a temporary patch
* to avoid python/gameengine crashes when python
* inadvertently holds references to game objects
* in global variables.
*
* The idea is always make a fresh dictionary, and
* destroy it right after it is used to make sure
* python won't hold any gameobject references.
*
* Note that the PyDict_Clear _is_ necessary before
* the Py_DECREF() because it is possible for the
* variables inside the dictionary to hold references
* to the dictionary (ie. generate a cycle), so we
* break it by hand, then DECREF (which in this case
* should always ensure excdict is cleared).
*/
/* PyObject *excdict= myPyDict_Copy(m_pythondictionary);
struct _object* resultobj = PyEval_EvalCode((PyCodeObject*)m_bytecode,
excdict,
excdict
);
PyDict_Clear(excdict);
Py_DECREF(excdict);*/
// FIXME:: still happining, will try to fix. snailrose...
PyObject *excdict= PyDict_Copy(m_pythondictionary);
PyObject* resultobj = PyEval_EvalCode((PyCodeObject*)m_bytecode,
excdict,
excdict
);
PyDict_Clear(excdict);
Py_DECREF(excdict);
#if 0
PyObject* resultobj = PyEval_EvalCode((PyCodeObject*)m_bytecode,
m_pythondictionary,
m_pythondictionary
);
#endif
if (resultobj)
{
Py_DECREF(resultobj);
} else
{
// something is wrong, tell the user what went wrong
printf("PYTHON SCRIPT ERROR:\n");
PyErr_Print();
//PyRun_SimpleString(m_scriptText.Ptr());
}
m_sCurrentController = NULL;
}
PyObject* SCA_PythonController::_getattr(const STR_String& attr)
{
_getattr_up(SCA_IController);
}
PyObject* SCA_PythonController::PyGetActuators(PyObject* self,
PyObject* args,
PyObject* kwds)
{
PyObject* resultlist = PyList_New(m_linkedactuators.size());
for (unsigned int index=0;index<m_linkedactuators.size();index++)
{
PyList_SetItem(resultlist,index,m_linkedactuators[index]->AddRef());
}
return resultlist;
}
char SCA_PythonController::GetSensor_doc[] =
"GetSensor (char sensorname) return linked sensor that is named [sensorname]\n";
PyObject*
SCA_PythonController::PyGetSensor(PyObject* self,
PyObject* args,
PyObject* kwds)
{
char *scriptArg;
if (!PyArg_ParseTuple(args, "s", &scriptArg)) {
return NULL;
}
for (unsigned int index=0;index<m_linkedsensors.size();index++)
{
SCA_ISensor* sensor = m_linkedsensors[index];
STR_String realname = sensor->GetName();
if (realname == scriptArg)
{
return sensor->AddRef();
}
}
PyErr_SetString(PyExc_AttributeError, "Unable to find requested sensor");
return NULL;
}
char SCA_PythonController::GetActuator_doc[] =
"GetActuator (char sensorname) return linked actuator that is named [actuatorname]\n";
PyObject*
SCA_PythonController::PyGetActuator(PyObject* self,
PyObject* args,
PyObject* kwds)
{
char *scriptArg;
if (!PyArg_ParseTuple(args, "s", &scriptArg)) {
return NULL;
}
for (unsigned int index=0;index<m_linkedactuators.size();index++)
{
SCA_IActuator* actua = m_linkedactuators[index];
STR_String realname = actua->GetName();
if (realname == scriptArg)
{
return actua->AddRef();
}
}
PyErr_SetString(PyExc_AttributeError, "Unable to find requested actuator");
return NULL;
}
char SCA_PythonController::GetSensors_doc[] = "getSensors returns a list of all attached sensors";
PyObject*
SCA_PythonController::PyGetSensors(PyObject* self,
PyObject* args,
PyObject* kwds)
{
PyObject* resultlist = PyList_New(m_linkedsensors.size());
for (unsigned int index=0;index<m_linkedsensors.size();index++)
{
PyList_SetItem(resultlist,index,m_linkedsensors[index]->AddRef());
}
return resultlist;
}
/* 1. getScript */
PyObject* SCA_PythonController::PyGetScript(PyObject* self,
PyObject* args,
PyObject* kwds)
{
return PyString_FromString(m_scriptText);
}
/* 2. setScript */
PyObject* SCA_PythonController::PySetScript(PyObject* self,
PyObject* args,
PyObject* kwds)
{
char *scriptArg;
if (!PyArg_ParseTuple(args, "s", &scriptArg)) {
return NULL;
}
/* set scripttext sets m_bModified to true,
so next time the script is needed, a reparse into byte code is done */
this->SetScriptText(scriptArg);
Py_Return;
}
/* eof */