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blender/source/gameengine/Ketsji/KX_PythonSeq.cpp

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/*
* ***** BEGIN GPL 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.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributor(s): Campbell Barton
*
* ***** END GPL LICENSE BLOCK *****
* Readonly sequence wrapper for lookups on logic bricks
*/
/** \file gameengine/Ketsji/KX_PythonSeq.cpp
* \ingroup ketsji
*/
#ifdef WITH_PYTHON
#include "KX_PythonSeq.h"
#include "KX_GameObject.h"
#include "BL_ArmatureObject.h"
#include "SCA_ISensor.h"
#include "SCA_IController.h"
#include "SCA_IActuator.h"
PyObject *KX_PythonSeq_CreatePyObject( PyObject *base, short type )
{
KX_PythonSeq *seq = PyObject_GC_New(KX_PythonSeq, &KX_PythonSeq_Type);
seq->base = base;
Py_INCREF(base); /* so we can always access to check if its valid */
seq->type = type;
seq->iter = -1; /* init */
return (PyObject *)seq;
}
static int KX_PythonSeq_traverse(KX_PythonSeq *self, visitproc visit, void *arg)
{
Py_VISIT(self->base);
return 0;
}
static int KX_PythonSeq_clear(KX_PythonSeq *self)
{
Py_CLEAR(self->base);
return 0;
}
static void KX_PythonSeq_dealloc(KX_PythonSeq *self)
{
KX_PythonSeq_clear(self);
PyObject_GC_Del(self);
}
static Py_ssize_t KX_PythonSeq_len( PyObject *self )
{
PyObjectPlus *self_plus= BGE_PROXY_REF(((KX_PythonSeq *)self)->base);
if (self_plus==NULL) {
PyErr_SetString(PyExc_SystemError, "len(seq): " BGE_PROXY_ERROR_MSG);
return -1;
}
switch (((KX_PythonSeq *)self)->type) {
case KX_PYGENSEQ_CONT_TYPE_SENSORS:
return ((SCA_IController *)self_plus)->GetLinkedSensors().size();
case KX_PYGENSEQ_CONT_TYPE_ACTUATORS:
return ((SCA_IController *)self_plus)->GetLinkedActuators().size();
case KX_PYGENSEQ_OB_TYPE_SENSORS:
return ((KX_GameObject *)self_plus)->GetSensors().size();
case KX_PYGENSEQ_OB_TYPE_CONTROLLERS:
return ((KX_GameObject *)self_plus)->GetControllers().size();
case KX_PYGENSEQ_OB_TYPE_ACTUATORS:
return ((KX_GameObject *)self_plus)->GetActuators().size();
case KX_PYGENSEQ_OB_TYPE_CONSTRAINTS:
return ((BL_ArmatureObject *)self_plus)->GetConstraintNumber();
case KX_PYGENSEQ_OB_TYPE_CHANNELS:
return ((BL_ArmatureObject *)self_plus)->GetChannelNumber();
default:
/* Should never happen */
PyErr_SetString(PyExc_SystemError, "invalid type, internal error");
return -1;
}
}
static PyObject *KX_PythonSeq_getIndex(PyObject *self, Py_ssize_t index)
{
PyObjectPlus *self_plus= BGE_PROXY_REF(((KX_PythonSeq *)self)->base);
if (self_plus==NULL) {
PyErr_SetString(PyExc_SystemError, "val = seq[i]: " BGE_PROXY_ERROR_MSG);
return NULL;
}
switch (((KX_PythonSeq *)self)->type) {
case KX_PYGENSEQ_CONT_TYPE_SENSORS:
{
vector<SCA_ISensor*>& linkedsensors = ((SCA_IController *)self_plus)->GetLinkedSensors();
if (index<0) index += linkedsensors.size();
if (index<0 || index>= linkedsensors.size()) {
PyErr_SetString(PyExc_IndexError, "seq[i]: index out of range");
return NULL;
}
return linkedsensors[index]->GetProxy();
}
case KX_PYGENSEQ_CONT_TYPE_ACTUATORS:
{
vector<SCA_IActuator*>& linkedactuators = ((SCA_IController *)self_plus)->GetLinkedActuators();
if (index<0) index += linkedactuators.size();
if (index<0 || index>= linkedactuators.size()) {
PyErr_SetString(PyExc_IndexError, "seq[i]: index out of range");
return NULL;
}
return linkedactuators[index]->GetProxy();
}
case KX_PYGENSEQ_OB_TYPE_SENSORS:
{
SCA_SensorList& linkedsensors= ((KX_GameObject *)self_plus)->GetSensors();
if (index<0) index += linkedsensors.size();
if (index<0 || index>= linkedsensors.size()) {
PyErr_SetString(PyExc_IndexError, "seq[i]: index out of range");
return NULL;
}
return linkedsensors[index]->GetProxy();
}
case KX_PYGENSEQ_OB_TYPE_CONTROLLERS:
{
SCA_ControllerList& linkedcontrollers= ((KX_GameObject *)self_plus)->GetControllers();
if (index<0) index += linkedcontrollers.size();
if (index<0 || index>= linkedcontrollers.size()) {
PyErr_SetString(PyExc_IndexError, "seq[i]: index out of range");
return NULL;
}
return linkedcontrollers[index]->GetProxy();
}
case KX_PYGENSEQ_OB_TYPE_ACTUATORS:
{
SCA_ActuatorList& linkedactuators= ((KX_GameObject *)self_plus)->GetActuators();
if (index<0) index += linkedactuators.size();
if (index<0 || index>= linkedactuators.size()) {
PyErr_SetString(PyExc_IndexError, "seq[i]: index out of range");
return NULL;
}
return linkedactuators[index]->GetProxy();
}
case KX_PYGENSEQ_OB_TYPE_CONSTRAINTS:
{
int nb_constraint = ((BL_ArmatureObject *)self_plus)->GetConstraintNumber();
if (index<0)
index += nb_constraint;
if (index<0 || index>= nb_constraint) {
PyErr_SetString(PyExc_IndexError, "seq[i]: index out of range");
return NULL;
}
return ((BL_ArmatureObject *)self_plus)->GetConstraint(index)->GetProxy();
}
case KX_PYGENSEQ_OB_TYPE_CHANNELS:
{
int nb_channel = ((BL_ArmatureObject *)self_plus)->GetChannelNumber();
if (index<0)
index += nb_channel;
if (index<0 || index>= nb_channel) {
PyErr_SetString(PyExc_IndexError, "seq[i]: index out of range");
return NULL;
}
return ((BL_ArmatureObject *)self_plus)->GetChannel(index)->GetProxy();
}
}
PyErr_SetString(PyExc_SystemError, "invalid sequence type, this is a bug");
return NULL;
}
static PyObjectPlus *KX_PythonSeq_subscript__internal(PyObject *self, const char *key)
{
PyObjectPlus *self_plus= BGE_PROXY_REF(((KX_PythonSeq *)self)->base);
switch (((KX_PythonSeq *)self)->type) {
case KX_PYGENSEQ_CONT_TYPE_SENSORS:
{
vector<SCA_ISensor*>& linkedsensors = ((SCA_IController *)self_plus)->GetLinkedSensors();
SCA_ISensor* sensor;
for (unsigned int index=0;index<linkedsensors.size();index++) {
sensor = linkedsensors[index];
if (sensor->GetName() == key)
return static_cast<PyObjectPlus *>(sensor);
}
break;
}
case KX_PYGENSEQ_CONT_TYPE_ACTUATORS:
{
vector<SCA_IActuator*>& linkedactuators = ((SCA_IController *)self_plus)->GetLinkedActuators();
SCA_IActuator* actuator;
for (unsigned int index=0;index<linkedactuators.size();index++) {
actuator = linkedactuators[index];
if (actuator->GetName() == key)
return static_cast<PyObjectPlus *>(actuator);
}
break;
}
case KX_PYGENSEQ_OB_TYPE_SENSORS:
{
SCA_SensorList& linkedsensors= ((KX_GameObject *)self_plus)->GetSensors();
SCA_ISensor *sensor;
for (unsigned int index=0;index<linkedsensors.size();index++) {
sensor= linkedsensors[index];
if (sensor->GetName() == key)
return static_cast<PyObjectPlus *>(sensor);
}
break;
}
case KX_PYGENSEQ_OB_TYPE_CONTROLLERS:
{
SCA_ControllerList& linkedcontrollers= ((KX_GameObject *)self_plus)->GetControllers();
SCA_IController *controller;
for (unsigned int index=0;index<linkedcontrollers.size();index++) {
controller= linkedcontrollers[index];
if (controller->GetName() == key)
return static_cast<PyObjectPlus *>(controller);
}
break;
}
case KX_PYGENSEQ_OB_TYPE_ACTUATORS:
{
SCA_ActuatorList& linkedactuators= ((KX_GameObject *)self_plus)->GetActuators();
SCA_IActuator *actuator;
for (unsigned int index=0;index<linkedactuators.size();index++) {
actuator= linkedactuators[index];
if (actuator->GetName() == key)
return static_cast<PyObjectPlus *>(actuator);
}
break;
}
case KX_PYGENSEQ_OB_TYPE_CONSTRAINTS:
{
return ((BL_ArmatureObject*)self_plus)->GetConstraint(key);
}
case KX_PYGENSEQ_OB_TYPE_CHANNELS:
{
return ((BL_ArmatureObject*)self_plus)->GetChannel(key);
}
}
return NULL;
}
static PyObject *KX_PythonSeq_subscript(PyObject *self, PyObject *key)
{
PyObjectPlus *self_plus= BGE_PROXY_REF(((KX_PythonSeq *)self)->base);
if (self_plus==NULL) {
PyErr_SetString(PyExc_SystemError, "val = seq[key], KX_PythonSeq: " BGE_PROXY_ERROR_MSG);
return NULL;
}
if (PyIndex_Check(key)) {
return KX_PythonSeq_getIndex(self, PyLong_AsSsize_t(key));
}
else if ( PyUnicode_Check(key) ) {
const char *name = _PyUnicode_AsString(key);
PyObjectPlus *ret = KX_PythonSeq_subscript__internal(self, name);
if (ret) {
return ret->GetProxy();
} else {
PyErr_Format( PyExc_KeyError, "requested item \"%s\" does not exist", name);
return NULL;
}
}
else {
PyErr_SetString( PyExc_TypeError, "expected a string or an index" );
return NULL;
}
}
static int KX_PythonSeq_contains(PyObject *self, PyObject *key)
{
PyObjectPlus *self_plus= BGE_PROXY_REF(((KX_PythonSeq *)self)->base);
if (self_plus==NULL) {
PyErr_SetString(PyExc_SystemError, "key in seq, KX_PythonSeq: " BGE_PROXY_ERROR_MSG);
return -1;
}
if (!PyUnicode_Check(key)) {
PyErr_SetString(PyExc_SystemError, "key in seq, KX_PythonSeq: key must be a string");
return -1;
}
if (KX_PythonSeq_subscript__internal(self, _PyUnicode_AsString(key)))
return 1;
return 0;
}
/* Matches python dict.get(key, [default]) */
static PyObject *KX_PythonSeq_get(PyObject *self, PyObject *args)
{
char *key;
PyObject *def = Py_None;
PyObjectPlus* ret_plus;
if (!PyArg_ParseTuple(args, "s|O:get", &key, &def))
return NULL;
if ((ret_plus = KX_PythonSeq_subscript__internal(self, key)))
return ret_plus->GetProxy();
Py_INCREF(def);
return def;
}
static PySequenceMethods KX_PythonSeq_as_sequence = {
NULL, /* Cant set the len otherwise it can evaluate as false */
NULL, /* sq_concat */
NULL, /* sq_repeat */
NULL, /* sq_item */
NULL, /* sq_slice */
NULL, /* sq_ass_item */
NULL, /* sq_ass_slice */
(objobjproc)KX_PythonSeq_contains, /* sq_contains */
(binaryfunc) NULL, /* sq_inplace_concat */
(ssizeargfunc) NULL, /* sq_inplace_repeat */
};
static PyMappingMethods KX_PythonSeq_as_mapping = {
KX_PythonSeq_len, /* mp_length */
KX_PythonSeq_subscript, /* mp_subscript */
0, /* mp_ass_subscript */
};
static PyMethodDef KX_PythonSeq_methods[] = {
// dict style access for props
{"get",(PyCFunction) KX_PythonSeq_get, METH_VARARGS},
{NULL,NULL} //Sentinel
};
/*
* Initialize the iterator index
*/
static PyObject *KX_PythonSeq_getIter(KX_PythonSeq *self)
{
if (BGE_PROXY_REF(self->base)==NULL) {
PyErr_SetString(PyExc_SystemError, "for i in seq: " BGE_PROXY_ERROR_MSG);
return NULL;
}
/* create a new iterator if were already using this one */
if (self->iter == -1) {
self->iter = 0;
Py_INCREF(self);
return (PyObject *)self;
} else {
return KX_PythonSeq_CreatePyObject(self->base, self->type);
}
}
/*
* Return next KX_PythonSeq iter.
*/
static PyObject *KX_PythonSeq_nextIter(KX_PythonSeq *self)
{
PyObject *object = KX_PythonSeq_getIndex((PyObject *)self, self->iter);
self->iter++;
if ( object==NULL ) {
self->iter= -1; /* for reuse */
PyErr_SetNone(PyExc_StopIteration);
}
return object; /* can be NULL for end of iterator */
}
static int KX_PythonSeq_compare(KX_PythonSeq *a, KX_PythonSeq *b)
{
return (a->type == b->type && a->base == b->base) ? 0 : -1;
}
static PyObject *KX_PythonSeq_richcmp(PyObject *a, PyObject *b, int op)
{
PyObject *res;
int ok= -1; /* zero is true */
if (BPy_KX_PythonSeq_Check(a) && BPy_KX_PythonSeq_Check(b))
ok= KX_PythonSeq_compare((KX_PythonSeq *)a, (KX_PythonSeq *)b);
switch (op) {
case Py_NE:
ok = !ok;
/* fall-through */
case Py_EQ:
res = ok ? Py_False : Py_True;
break;
case Py_LT:
case Py_LE:
case Py_GT:
case Py_GE:
res = Py_NotImplemented;
break;
default:
PyErr_BadArgument();
return NULL;
}
Py_INCREF(res);
return res;
}
/*
* repr function
* convert to a list and get its string value
*/
static PyObject *KX_PythonSeq_repr(KX_PythonSeq *self)
{
PyObject *list = PySequence_List((PyObject *)self);
PyObject *repr = PyObject_Repr(list);
Py_DECREF(list);
return repr;
}
/*****************************************************************************/
/* Python KX_PythonSeq_Type structure definition: */
/*****************************************************************************/
PyTypeObject KX_PythonSeq_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
/* For printing, in format "<module>.<name>" */
"KX_PythonSeq", /* char *tp_name; */
sizeof( KX_PythonSeq ), /* int tp_basicsize; */
0, /* tp_itemsize; For allocation */
/* Methods to implement standard operations */
( destructor ) KX_PythonSeq_dealloc, /* destructor tp_dealloc; */
NULL, /* printfunc tp_print; */
NULL, /* getattrfunc tp_getattr; */
NULL, /* setattrfunc tp_setattr; */
NULL, /* cmpfunc tp_compare; */
( reprfunc ) KX_PythonSeq_repr, /* reprfunc tp_repr; */
/* Method suites for standard classes */
NULL, /* PyNumberMethods *tp_as_number; */
&KX_PythonSeq_as_sequence, /* PySequenceMethods *tp_as_sequence; */
&KX_PythonSeq_as_mapping, /* PyMappingMethods *tp_as_mapping; */
/* More standard operations (here for binary compatibility) */
NULL, /* hashfunc tp_hash; */
NULL, /* ternaryfunc tp_call; */
NULL, /* reprfunc tp_str; */
NULL, /* getattrofunc tp_getattro; */
NULL, /* setattrofunc tp_setattro; */
/* Functions to access object as input/output buffer */
NULL, /* PyBufferProcs *tp_as_buffer; */
/*** Flags to define presence of optional/expanded features ***/
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC, /* long tp_flags; */
NULL, /* char *tp_doc; Documentation string */
/*** Assigned meaning in release 2.0 ***/
/* call function for all accessible objects */
(traverseproc)KX_PythonSeq_traverse, /* traverseproc tp_traverse; */
/* delete references to contained objects */
(inquiry)KX_PythonSeq_clear, /* inquiry tp_clear; */
/*** Assigned meaning in release 2.1 ***/
/*** rich comparisons ***/
(richcmpfunc)KX_PythonSeq_richcmp, /* richcmpfunc tp_richcompare; */
/*** weak reference enabler ***/
0, /* long tp_weaklistoffset; */
/*** Added in release 2.2 ***/
/* Iterators */
( getiterfunc) KX_PythonSeq_getIter, /* getiterfunc tp_iter; */
( iternextfunc ) KX_PythonSeq_nextIter, /* iternextfunc tp_iternext; */
/*** Attribute descriptor and subclassing stuff ***/
KX_PythonSeq_methods, /* struct PyMethodDef *tp_methods; */
NULL, /* struct PyMemberDef *tp_members; */
NULL, /* struct PyGetSetDef *tp_getset; */
NULL, /* struct _typeobject *tp_base; */
NULL, /* PyObject *tp_dict; */
NULL, /* descrgetfunc tp_descr_get; */
NULL, /* descrsetfunc tp_descr_set; */
0, /* long tp_dictoffset; */
NULL, /* initproc tp_init; */
NULL, /* allocfunc tp_alloc; */
NULL, /* newfunc tp_new; */
/* Low-level free-memory routine */
NULL, /* freefunc tp_free; */
/* For PyObject_IS_GC */
NULL, /* inquiry tp_is_gc; */
NULL, /* PyObject *tp_bases; */
/* method resolution order */
NULL, /* PyObject *tp_mro; */
NULL, /* PyObject *tp_cache; */
NULL, /* PyObject *tp_subclasses; */
NULL, /* PyObject *tp_weaklist; */
NULL
};
#endif // WITH_PYTHON
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