forked from bartvdbraak/blender
Python utils for Python <-> MT_Vector, MT_Point & MT_Matrix
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238
source/gameengine/Ketsji/KX_PyMath.cpp
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238
source/gameengine/Ketsji/KX_PyMath.cpp
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/**
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* $Id$
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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* Initialize Python thingies.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef WIN32
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#pragma warning (disable : 4786)
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#endif //WIN32
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#include "MT_Vector3.h"
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#include "MT_Vector4.h"
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#include "MT_Matrix4x4.h"
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#include "ListValue.h"
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#include "KX_Python.h"
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MT_Vector3 MT_Vector3FromPyList(PyObject* pylist)
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{
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MT_Vector3 vec(0., 0., 0.);
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bool error=false;
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if (pylist->ob_type == &CListValue::Type)
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{
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CListValue* listval = (CListValue*) pylist;
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unsigned int numitems = listval->GetCount();
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if (numitems <= 3)
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{
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for (unsigned int index=0;index<numitems;index++)
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{
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vec[index] = listval->GetValue(index)->GetNumber();
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}
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} else
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{
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error = true;
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}
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} else
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{
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// assert the list is long enough...
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unsigned int numitems = PyList_Size(pylist);
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if (numitems <= 3)
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{
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for (unsigned int index=0;index<numitems;index++)
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{
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vec[index] = PyFloat_AsDouble(PyList_GetItem(pylist,index));
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}
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}
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else
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{
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error = true;
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}
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}
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if (error)
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PyErr_SetString(PyExc_TypeError, "Expected list of three items for vector argument.");
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return vec;
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}
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MT_Point3 MT_Point3FromPyList(PyObject* pylist)
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{
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MT_Point3 point(0., 0., 0.);
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bool error=false;
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if (pylist->ob_type == &CListValue::Type)
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{
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CListValue* listval = (CListValue*) pylist;
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unsigned int numitems = listval->GetCount();
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if (numitems <= 3)
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{
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for (unsigned int index=0;index<numitems;index++)
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{
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point[index] = listval->GetValue(index)->GetNumber();
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}
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} else
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{
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error = true;
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}
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} else
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{
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// assert the list is long enough...
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unsigned int numitems = PyList_Size(pylist);
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if (numitems <= 3)
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{
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for (unsigned int index=0;index<numitems;index++)
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{
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point[index] = PyFloat_AsDouble(PyList_GetItem(pylist,index));
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}
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}
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else
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{
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error = true;
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}
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}
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if (error)
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PyErr_SetString(PyExc_TypeError, "Expected list of three items for point argument.");
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return point;
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}
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MT_Vector4 MT_Vector4FromPyList(PyObject* pylist)
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{
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MT_Vector4 vec(0., 0., 0., 1.);
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bool error=false;
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if (pylist->ob_type == &CListValue::Type)
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{
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CListValue* listval = (CListValue*) pylist;
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unsigned int numitems = listval->GetCount();
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if (numitems <= 4)
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{
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for (unsigned index=0;index<numitems;index++)
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{
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vec[index] = listval->GetValue(index)->GetNumber();
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}
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} else
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{
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error = true;
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}
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} else
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{
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// assert the list is long enough...
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unsigned int numitems = PyList_Size(pylist);
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if (numitems <= 4)
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{
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for (unsigned index=0;index<numitems;index++)
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{
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vec[index] = PyFloat_AsDouble(PyList_GetItem(pylist,index));
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}
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}
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else
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{
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error = true;
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}
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}
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if (error)
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PyErr_SetString(PyExc_TypeError, "Expected list of four items for Vector argument.");
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return vec;
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}
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MT_Matrix4x4 MT_Matrix4x4FromPyObject(PyObject *pymat)
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{
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MT_Matrix4x4 mat;
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bool error = false;
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mat.setIdentity();
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if (PySequence_Check(pymat))
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{
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unsigned int rows = PySequence_Size(pymat);
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for (unsigned int y = 0; y < rows && y < 4; y++)
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{
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PyObject *pyrow = PySequence_GetItem(pymat, y);
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if (PySequence_Check(pyrow))
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{
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unsigned int cols = PySequence_Size(pyrow);
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for( unsigned int x = 0; x < cols && x < 4; x++)
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{
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mat[y][x] = PyFloat_AsDouble(PySequence_GetItem(pyrow, x));
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}
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}
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}
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}
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return mat;
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}
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MT_Matrix3x3 MT_Matrix3x3FromPyObject(PyObject *pymat)
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{
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MT_Matrix3x3 mat;
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bool error = false;
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mat.setIdentity();
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if (PySequence_Check(pymat))
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{
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unsigned int rows = PySequence_Size(pymat);
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for (unsigned int y = 0; y < rows && y < 3; y++)
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{
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PyObject *pyrow = PySequence_GetItem(pymat, y);
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if (PySequence_Check(pyrow))
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{
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unsigned int cols = PySequence_Size(pyrow);
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for( unsigned int x = 0; x < cols && x < 3; x++)
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{
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mat[y][x] = PyFloat_AsDouble(PySequence_GetItem(pyrow, x));
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}
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}
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}
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}
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return mat;
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}
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PyObject* PyObjectFromMT_Matrix4x4(const MT_Matrix4x4 &mat)
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{
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PyObject *pymat = PyList_New(0);
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for (unsigned int y = 0; y < 4; y++)
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{
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PyObject *row = PyList_New(0);
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for( unsigned int x = 0; x < 4; x++ )
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{
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PyList_Append(row, PyFloat_FromDouble(mat[y][x]));
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}
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PyList_Append(pymat, row);
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}
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return pymat;
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}
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79
source/gameengine/Ketsji/KX_PyMath.h
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79
source/gameengine/Ketsji/KX_PyMath.h
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@ -0,0 +1,79 @@
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/**
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* $Id$
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*
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* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version. The Blender
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* Foundation also sells licenses for use in proprietary software under
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* the Blender License. See http://www.blender.org/BL/ for information
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* about this.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL/BL DUAL LICENSE BLOCK *****
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* Initialize Python thingies.
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*/
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#ifndef __KX_PYMATH_H__
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#define __KX_PYMATH_H__
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#include "MT_Vector3.h"
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#include "MT_Point3.h"
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#include "MT_Vector4.h"
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#include "MT_Matrix4x4.h"
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#include "MT_Matrix3x3.h"
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#include "KX_Python.h"
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/**
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* Converts a python list to an MT_Vector3
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*/
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MT_Vector3 MT_Vector3FromPyList(PyObject* pylist);
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/**
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* Converts a python list to an MT_Point3
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*/
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MT_Point3 MT_Point3FromPyList(PyObject* pylist);
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/**
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* Converts a python list to an MT_Vector4
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*/
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MT_Vector4 MT_Vector4FromPyList(PyObject* pylist);
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/**
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* Converts a python list of lists to an MT_Matrix4x4.
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* Any object that supports the sequence protocol will work.
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* Only the first four rows and first four columns in each row will be converted.
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* @example The python object [[1.0, 0.0, 0.0, 0.0], [0.0, 1.0, 0.0, 0.0], [0.0, 0.0, 1.0, 0.0], [0.0, 0.0, 0.0, 1.0]]
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*/
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MT_Matrix4x4 MT_Matrix4x4FromPyObject(PyObject *pymat);
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/**
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* Converts a python list of lists to an MT_Matrix3x3
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* Any object that supports the sequence protocol will work.
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* Only the first three rows and first three columns in each row will be converted.
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* @example The python object [[1.0, 0.0, 0.0], [0.0, 1.0, 0.0], [0.0, 0.0, 1.0]]
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*/
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MT_Matrix3x3 MT_Matrix3x3FromPyObject(PyObject *pymat);
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/**
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* Converts an MT_Matrix4x4 to a python object.
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*/
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PyObject* PyObjectFromMT_Matrix4x4(const MT_Matrix4x4 &mat);
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#endif
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@ -54,6 +54,8 @@
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#include "KX_Scene.h"
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#include "SND_DeviceManager.h"
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#include "KX_PyMath.h"
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// FIXME: Enable for access to blender python modules. This is disabled because
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// python has dependencies on a lot of other modules and is a pain to link.
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//#define USE_BLENDER_PYTHON
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@ -93,80 +95,6 @@ static PyObject* gPyGetRandomFloat(PyObject* self,
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void GlobalConvertPythonPylist(PyObject* pylist, MT_Vector3 &pos)
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{
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bool error=false;
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if (pylist->ob_type == &CListValue::Type)
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{
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CListValue* listval = (CListValue*) pylist;
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unsigned int numitems = listval->GetCount();
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if (numitems <= 3)
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{
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for (unsigned int index=0;index<numitems;index++)
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{
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pos[index] = listval->GetValue(index)->GetNumber();
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}
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} else
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{
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error = true;
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}
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} else
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{
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// assert the list is long enough...
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unsigned int numitems = PyList_Size(pylist);
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if (numitems <= 3)
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{
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for (unsigned int index=0;index<numitems;index++)
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{
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pos[index] = PyFloat_AsDouble(PyList_GetItem(pylist,index));
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}
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}
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else
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{
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error = true;
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}
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}
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}
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void GlobalConvertPythonPylist(PyObject* pylist, MT_Vector4 &vec)
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{
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bool error=false;
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if (pylist->ob_type == &CListValue::Type)
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{
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CListValue* listval = (CListValue*) pylist;
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unsigned int numitems = listval->GetCount();
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if (numitems <= 4)
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{
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for (unsigned index=0;index<numitems;index++)
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{
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vec[index] = listval->GetValue(index)->GetNumber();
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}
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} else
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{
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error = true;
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}
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} else
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{
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// assert the list is long enough...
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unsigned int numitems = PyList_Size(pylist);
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if (numitems <= 4)
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{
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for (unsigned index=0;index<numitems;index++)
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{
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vec[index] = PyFloat_AsDouble(PyList_GetItem(pylist,index));
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}
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}
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else
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{
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error = true;
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}
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}
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}
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void GlobalConvertPythonVectorArg(PyObject* args, MT_Vector3 &pos)
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@ -174,7 +102,7 @@ void GlobalConvertPythonVectorArg(PyObject* args, MT_Vector3 &pos)
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PyObject* pylist;
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PyArg_ParseTuple(args,"O",&pylist);
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GlobalConvertPythonPylist(pylist, pos);
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pos = MT_Vector3FromPyList(pylist);
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}
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void GlobalConvertPythonVectorArg(PyObject* args, MT_Vector4 &vec)
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@ -182,7 +110,7 @@ void GlobalConvertPythonVectorArg(PyObject* args, MT_Vector4 &vec)
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PyObject* pylist;
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PyArg_ParseTuple(args,"O",&pylist);
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GlobalConvertPythonPylist(pylist, vec);
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vec = MT_Vector4FromPyList(pylist);
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}
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