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Copy pathUEPyModule.cpp
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755 lines (556 loc) · 19.7 KB
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#include "UnrealEnginePythonPrivatePCH.h"
#include "Kismet/KismetSystemLibrary.h"
DEFINE_LOG_CATEGORY(LogPython);
PyDoc_STRVAR(unreal_engine_py_doc, "Unreal Engine Python module.");
static PyModuleDef unreal_engine_module = {
PyModuleDef_HEAD_INIT,
"unreal_engine",
unreal_engine_py_doc,
-1,
NULL,
};
static PyObject *init_unreal_engine(void) {
return PyModule_Create(&unreal_engine_module);
}
static PyObject *py_unreal_engine_log(PyObject * self, PyObject * args) {
char *message;
if (!PyArg_ParseTuple(args, "s:log", &message)) {
return NULL;
}
UE_LOG(LogPython, Log, TEXT("%s"), UTF8_TO_TCHAR(message));
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_unreal_engine_log_warning(PyObject * self, PyObject * args) {
char *message;
if (!PyArg_ParseTuple(args, "s:log_warning", &message)) {
return NULL;
}
UE_LOG(LogPython, Warning, TEXT("%s"), UTF8_TO_TCHAR(message));
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_unreal_engine_log_error(PyObject * self, PyObject * args) {
char *message;
if (!PyArg_ParseTuple(args, "s:log_error", &message)) {
return NULL;
}
UE_LOG(LogPython, Error, TEXT("%s"), UTF8_TO_TCHAR(message));
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_unreal_engine_add_on_screen_debug_message(PyObject * self, PyObject * args) {
int key;
float time_to_display;
char *message;
if (!PyArg_ParseTuple(args, "ifs:add_on_screen_debug_message", &key, &time_to_display, &message)) {
return NULL;
}
if (!GEngine)
goto end;
GEngine->AddOnScreenDebugMessage(key, time_to_display, FColor::Green, FString::Printf(TEXT("%s"), UTF8_TO_TCHAR(message)));
end:
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_unreal_engine_find_class(PyObject * self, PyObject * args) {
char *name;
if (!PyArg_ParseTuple(args, "s:find_class", &name)) {
return NULL;
}
UClass *u_class = FindObject<UClass>(ANY_PACKAGE, UTF8_TO_TCHAR(name));
if (u_class) {
ue_PyUObject *ret = ue_get_python_wrapper(u_class);
if (!ret)
return PyErr_Format(PyExc_Exception, "uobject is in invalid state");
Py_INCREF(ret);
return (PyObject *)ret;
}
Py_INCREF(Py_None);
return Py_None;
}
/*
for (UActorComponent *component : GetOwner()->GetComponents()) {
UE_LOG(LogPython, Error, TEXT("Component: %s"), *component->GetName());
}
*/
static PyMethodDef unreal_engine_methods[] = {
{ "log", py_unreal_engine_log, METH_VARARGS, "" },
{ "log_warning", py_unreal_engine_log_warning, METH_VARARGS, "" },
{ "log_error", py_unreal_engine_log_error, METH_VARARGS, "" },
{ "add_on_screen_debug_message", py_unreal_engine_add_on_screen_debug_message, METH_VARARGS, "" },
{ "find_class", py_unreal_engine_find_class, METH_VARARGS, "" },
{ NULL, NULL },
};
#define ue_py_check(py_u) if (!py_u->ue_object || !py_u->ue_object->IsValidLowLevel() || py_u->ue_object->IsPendingKillOrUnreachable())\
return PyErr_Format(PyExc_Exception, "PyUObject is in invalid state")
static PyObject *py_ue_call(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
char *call_args;
if (!PyArg_ParseTuple(args, "s:call", &call_args)) {
return NULL;
}
FOutputDeviceNull od_null;
self->ue_object->CallFunctionByNameWithArguments(UTF8_TO_TCHAR(call_args), od_null, NULL, true);
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_ue_get_property(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
char *property_name;
if (!PyArg_ParseTuple(args, "s:get_property", &property_name)) {
return NULL;
}
UProperty *u_property = self->ue_object->GetClass()->FindPropertyByName(FName(UTF8_TO_TCHAR(property_name)));
if (!u_property)
return PyErr_Format(PyExc_Exception, "unable to find property %s", property_name);
UFloatProperty *u_float_property = Cast<UFloatProperty>(u_property);
if (u_float_property)
return Py_BuildValue("f", u_float_property->GetPropertyValue(u_property->ContainerPtrToValuePtr<float>(self->ue_object)));
UObjectProperty *u_obj_property = Cast<UObjectProperty>(u_property);
if (u_obj_property) {
UObject *u_obj = u_obj_property->GetPropertyValue(u_property->ContainerPtrToValuePtr<UObject>(self->ue_object));
PyObject *py_obj = (PyObject *)ue_get_python_wrapper(u_obj);
Py_INCREF(py_obj);
return py_obj;
}
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_ue_properties(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
PyObject *ret = PyList_New(0);
for (TFieldIterator<UProperty> PropIt(self->ue_object->GetClass()); PropIt; ++PropIt)
{
UProperty* property = *PropIt;
PyObject *property_name = PyUnicode_FromString(TCHAR_TO_UTF8(*property->GetName()));
PyList_Append(ret, property_name);
Py_DECREF(property_name);
}
return ret;
}
static PyObject *py_ue_get_owner(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
if (!self->ue_object->IsA<UActorComponent>()) {
return PyErr_Format(PyExc_Exception, "uobject is not a component");
}
UActorComponent *component = (UActorComponent *) self->ue_object;
ue_PyUObject *ret = ue_get_python_wrapper(component->GetOwner());
if (!ret)
return PyErr_Format(PyExc_Exception, "uobject is in invalid state");
Py_INCREF(ret);
return (PyObject *)ret;
}
static PyObject *py_ue_get_name(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
return PyUnicode_FromString(TCHAR_TO_UTF8(*(self->ue_object->GetName())));
}
static PyObject *py_ue_get_full_name(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
return PyUnicode_FromString(TCHAR_TO_UTF8(*(self->ue_object->GetFullName())));
}
#if WITH_EDITOR
static PyObject *py_ue_get_actor_label(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
if (self->ue_object->IsA<AActor>()) {
AActor *actor = (AActor *)self->ue_object;
return PyUnicode_FromString(TCHAR_TO_UTF8(*(actor->GetActorLabel())));
}
if (self->ue_object->IsA<UActorComponent>()) {
UActorComponent *component = (UActorComponent *)self->ue_object;
return PyUnicode_FromString(TCHAR_TO_UTF8(*(component->GetOwner()->GetActorLabel())));
}
return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
}
#endif
static PyObject *py_ue_get_actor_location(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
FVector vec3;
if (self->ue_object->IsA<AActor>()) {
vec3 = ((AActor *)self->ue_object)->GetActorLocation();
goto ret;
}
if (self->ue_object->IsA<UActorComponent>()) {
vec3 = ((UActorComponent *)self->ue_object)->GetOwner()->GetActorLocation();
goto ret;
}
return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
ret:
return Py_BuildValue("fff", vec3.X, vec3.Y, vec3.Z);
}
static PyObject *py_ue_get_actor_velocity(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
FVector vec3;
if (self->ue_object->IsA<AActor>()) {
vec3 = ((AActor *)self->ue_object)->GetVelocity();
goto ret;
}
if (self->ue_object->IsA<UActorComponent>()) {
vec3 = ((UActorComponent *)self->ue_object)->GetOwner()->GetVelocity();
goto ret;
}
return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
ret:
return Py_BuildValue("fff", vec3.X, vec3.Y, vec3.Z);
}
static PyObject *py_ue_get_input_axis(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
char *axis_name;
if (!PyArg_ParseTuple(args, "s:get_input_axis", &axis_name)) {
return NULL;
}
UInputComponent *input = nullptr;
if (self->ue_object->IsA<AActor>()) {
input = ((AActor *)self->ue_object)->InputComponent;
}
else if (self->ue_object->IsA<UActorComponent>()) {
input = ((UActorComponent *)self->ue_object)->GetOwner()->InputComponent;
}
else {
return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
}
if (!input) {
return PyErr_Format(PyExc_Exception, "no input manager for this uobject");
}
return Py_BuildValue("f", input->GetAxisValue(FName(UTF8_TO_TCHAR(axis_name))));
}
static PyObject *py_ue_bind_input_axis(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
char *axis_name;
if (!PyArg_ParseTuple(args, "s:bind_input_axis", &axis_name)) {
return NULL;
}
UInputComponent *input = nullptr;
if (self->ue_object->IsA<AActor>()) {
input = ((AActor *)self->ue_object)->InputComponent;
}
else if (self->ue_object->IsA<UActorComponent>()) {
input = ((UActorComponent *)self->ue_object)->GetOwner()->InputComponent;
}
else {
return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
}
if (!input) {
return PyErr_Format(PyExc_Exception, "no input manager for this uobject");
}
input->BindAxis(FName(UTF8_TO_TCHAR(axis_name)));
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_ue_quit_game(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
UWorld *world = ue_get_uworld(self);
if (!world)
return PyErr_Format(PyExc_Exception, "unable to retrieve UWorld from uobject");
UKismetSystemLibrary::QuitGame(world, world->GetFirstPlayerController(), EQuitPreference::Quit);
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_ue_is_input_key_down(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
char *key;
if (!PyArg_ParseTuple(args, "s:is_input_key_down", &key)) {
return NULL;
}
UWorld *world = ue_get_uworld(self);
if (!world)
return PyErr_Format(PyExc_Exception, "unable to retrieve UWorld from uobject");
APlayerController *controller = world->GetFirstPlayerController();
if (controller->IsInputKeyDown(key)) {
Py_INCREF(Py_True);
return Py_True;
}
Py_INCREF(Py_False);
return Py_False;
}
static PyObject *py_ue_enable_input(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
/*
TODO manage controller index
char *axis_name;
if (!PyArg_ParseTuple(args, "s:get_input_axis", &axis_name)) {
return NULL;
}*/
UWorld *world = ue_get_uworld(self);
if (!world)
return PyErr_Format(PyExc_Exception, "unable to retrieve UWorld from uobject");
APlayerController *controller = world->GetFirstPlayerController();
if (!controller)
return PyErr_Format(PyExc_Exception, "no player controller available");
if (self->ue_object->IsA<AActor>()) {
((AActor *)self->ue_object)->EnableInput(controller);
}
else if (self->ue_object->IsA<UActorComponent>()) {
((UActorComponent *)self->ue_object)->GetOwner()->EnableInput(controller);
}
else {
return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
}
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_ue_set_actor_location(ue_PyUObject *self, PyObject * args) {
ue_py_check(self);
float x, y, z;
if (!PyArg_ParseTuple(args, "fff:set_actor_location", &x, &y, &z)) {
return NULL;
}
if (self->ue_object->IsA<AActor>()) {
((AActor *)self->ue_object)->SetActorLocation(FVector(x, y, z), false);
goto ret;
}
if (self->ue_object->IsA<UActorComponent>()) {
((UActorComponent *)self->ue_object)->GetOwner()->SetActorLocation(FVector(x, y, z));
goto ret;
}
return PyErr_Format(PyExc_Exception, "uobject is not an actor or a component");
ret:
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *py_ue_find_object(ue_PyUObject * self, PyObject * args) {
ue_py_check(self);
char *name;
if (!PyArg_ParseTuple(args, "s:find_object", &name)) {
return NULL;
}
UObject *u_object = nullptr;
for (TObjectIterator<UObject> Itr; Itr; ++Itr) {
UObject *u_obj = *Itr;
if (u_obj->GetName().Equals(UTF8_TO_TCHAR(name))) {
u_object = u_obj;
break;
}
}
if (u_object) {
ue_PyUObject *ret = ue_get_python_wrapper(u_object);
if (!ret)
return PyErr_Format(PyExc_Exception, "PyUObject is in invalid state");
Py_INCREF(ret);
return (PyObject *)ret;
}
Py_INCREF(Py_None);
return Py_None;
}
#if WITH_EDITOR
static PyObject *py_ue_find_actor_by_label(ue_PyUObject * self, PyObject * args) {
ue_py_check(self);
char *name;
if (!PyArg_ParseTuple(args, "s:find_actor_by_label", &name)) {
return NULL;
}
UWorld *world = ue_get_uworld(self);
if (!world)
return PyErr_Format(PyExc_Exception, "unable to retrieve UWorld from uobject");
UObject *u_object = nullptr;
for (TActorIterator<AActor> Itr(world); Itr; ++Itr) {
AActor *u_obj = *Itr;
if (u_obj->GetActorLabel().Equals(UTF8_TO_TCHAR(name))) {
u_object = u_obj;
break;
}
}
if (u_object) {
ue_PyUObject *ret = ue_get_python_wrapper(u_object);
if (!ret)
return PyErr_Format(PyExc_Exception, "PyUObject is in invalid state");
Py_INCREF(ret);
return (PyObject *)ret;
}
Py_INCREF(Py_None);
return Py_None;
}
#endif
static PyObject *py_ue_get_class(ue_PyUObject * self, PyObject * args) {
ue_py_check(self);
ue_PyUObject *ret = ue_get_python_wrapper(self->ue_object->GetClass());
if (!ret)
return PyErr_Format(PyExc_Exception, "PyUObject is in invalid state");
Py_INCREF(ret);
return (PyObject *)ret;
}
static PyObject *py_ue_all_objects(ue_PyUObject * self, PyObject * args) {
ue_py_check(self);
UWorld *world = ue_get_uworld(self);
if (!world)
return PyErr_Format(PyExc_Exception, "unable to retrieve UWorld from uobject");
PyObject *ret = PyList_New(0);
for (TObjectIterator<UObject> Itr; Itr; ++Itr) {
UObject *u_obj = *Itr;
if (u_obj->GetWorld() != world)
continue;
ue_PyUObject *py_obj = ue_get_python_wrapper(u_obj);
if (!py_obj)
continue;
PyList_Append(ret, (PyObject *)py_obj);
}
return ret;
}
static PyObject *py_ue_all_actors(ue_PyUObject * self, PyObject * args) {
ue_py_check(self);
UWorld *world = ue_get_uworld(self);
if (!world)
return PyErr_Format(PyExc_Exception, "unable to retrieve UWorld from uobject");
PyObject *ret = PyList_New(0);
for (TActorIterator<AActor> Itr(world); Itr; ++Itr) {
UObject *u_obj = *Itr;
ue_PyUObject *py_obj = ue_get_python_wrapper(u_obj);
if (!py_obj)
continue;
PyList_Append(ret, (PyObject *)py_obj);
}
return ret;
}
static PyObject *py_ue_actor_components(ue_PyUObject * self, PyObject * args) {
ue_py_check(self);
if (!self->ue_object->IsA<AActor>()) {
return PyErr_Format(PyExc_Exception, "uobject is not an AActor");
}
AActor *actor = (AActor *)self->ue_object;
PyObject *ret = PyList_New(0);
for (UActorComponent *component : actor->GetComponents()) {
ue_PyUObject *py_obj = ue_get_python_wrapper(component);
if (!py_obj)
continue;
PyList_Append(ret, (PyObject *)py_obj);
}
return ret;
}
static PyObject *py_ue_is_a(ue_PyUObject *, PyObject *);
static PyMethodDef ue_PyUObject_methods[] = {
{ "get_actor_location", (PyCFunction)py_ue_get_actor_location, METH_VARARGS, "" },
{ "get_actor_velocity", (PyCFunction)py_ue_get_actor_velocity, METH_VARARGS, "" },
{ "set_actor_location", (PyCFunction)py_ue_set_actor_location, METH_VARARGS, "" },
{ "get_property", (PyCFunction)py_ue_get_property, METH_VARARGS, "" },
{ "properties", (PyCFunction)py_ue_properties, METH_VARARGS, "" },
{ "call", (PyCFunction)py_ue_call, METH_VARARGS, "" },
{ "get_owner", (PyCFunction)py_ue_get_owner, METH_VARARGS, "" },
{ "get_name", (PyCFunction)py_ue_get_name, METH_VARARGS, "" },
{ "get_full_name", (PyCFunction)py_ue_get_full_name, METH_VARARGS, "" },
#if WITH_EDITOR
{ "get_actor_label", (PyCFunction)py_ue_get_actor_label, METH_VARARGS, "" },
{ "find_actor_by_label", (PyCFunction)py_ue_find_actor_by_label, METH_VARARGS, "" },
#endif
{ "find_object", (PyCFunction)py_ue_find_object, METH_VARARGS, "" },
{ "all_objects", (PyCFunction)py_ue_all_objects, METH_VARARGS, "" },
{ "all_actors", (PyCFunction)py_ue_all_actors, METH_VARARGS, "" },
{ "get_input_axis", (PyCFunction)py_ue_get_input_axis, METH_VARARGS, "" },
{ "bind_input_axis", (PyCFunction)py_ue_bind_input_axis, METH_VARARGS, "" },
{ "enable_input", (PyCFunction)py_ue_enable_input, METH_VARARGS, "" },
{ "get_class", (PyCFunction)py_ue_get_class, METH_VARARGS, "" },
{ "actor_components", (PyCFunction)py_ue_actor_components, METH_VARARGS, "" },
{ "quit_game", (PyCFunction)py_ue_quit_game, METH_VARARGS, "" },
{ "is_input_key_down", (PyCFunction)py_ue_is_input_key_down, METH_VARARGS, "" },
{ NULL } /* Sentinel */
};
static PyTypeObject ue_PyUObjectType = {
PyVarObject_HEAD_INIT(NULL, 0)
"unreal_engine.UObject", /* tp_name */
sizeof(ue_PyUObject), /* tp_basicsize */
0, /* tp_itemsize */
0, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_reserved */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
"Unreal Engine generic UObject", /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
ue_PyUObject_methods, /* tp_methods */
};
static PyObject *py_ue_is_a(ue_PyUObject * self, PyObject * args) {
ue_py_check(self);
PyObject *obj;
if (!PyArg_ParseTuple(args, "o:is_a", &obj)) {
return NULL;
}
if (!PyObject_IsInstance(obj, (PyObject *)&ue_PyUObjectType)) {
return PyErr_Format(PyExc_Exception, "argument is not a UObject");
}
ue_PyUObject *py_obj = (ue_PyUObject *)obj;
if (self->ue_object->IsA((UClass *)py_obj->ue_object)) {
Py_INCREF(Py_True);
return Py_True;
}
Py_INCREF(Py_False);
return Py_False;
}
void unreal_engine_init_py_module() {
PyImport_AppendInittab("unreal_engine", init_unreal_engine);
PyObject *new_unreal_engine_module = PyImport_AddModule("unreal_engine");
PyObject *unreal_engine_dict = PyModule_GetDict(new_unreal_engine_module);
PyMethodDef *unreal_engine_function;
for (unreal_engine_function = unreal_engine_methods; unreal_engine_function->ml_name != NULL; unreal_engine_function++) {
PyObject *func = PyCFunction_New(unreal_engine_function, NULL);
PyDict_SetItemString(unreal_engine_dict, unreal_engine_function->ml_name, func);
Py_DECREF(func);
}
ue_PyUObjectType.tp_new = PyType_GenericNew;
if (PyType_Ready(&ue_PyUObjectType) < 0)
return;
Py_INCREF(&ue_PyUObjectType);
PyModule_AddObject(new_unreal_engine_module, "UObject", (PyObject *)&ue_PyUObjectType);
}
ue_PyUObject *ue_get_python_wrapper(UObject *ue_obj) {
if (!ue_obj || !ue_obj->IsValidLowLevel() || ue_obj->IsPendingKillOrUnreachable())
return nullptr;
UPyObject *ue_py_object = FindObject<UPyObject>(ue_obj, TEXT("__PyObject"), true);
if (!ue_py_object) {
ue_py_object = NewObject<UPyObject>(ue_obj, FName(TEXT("__PyObject")));
if (!ue_py_object) {
return nullptr;
}
ue_py_object->py_object = (ue_PyUObject *)PyObject_New(ue_PyUObject, &ue_PyUObjectType);
if (!ue_py_object->py_object) {
ue_py_object->ConditionalBeginDestroy();
return nullptr;
}
((ue_PyUObject *)ue_py_object->py_object)->ue_object = ue_obj;
Py_INCREF(ue_py_object->py_object);
}
return ue_py_object->py_object;
}
void unreal_engine_py_log_error() {
PyObject *type = NULL;
PyObject *value = NULL;
PyObject *traceback = NULL;
PyErr_Fetch(&type, &value, &traceback);
PyErr_NormalizeException(&type, &value, &traceback);
if (!value)
return;
char *msg = NULL;
PyObject *zero = PyUnicode_AsUTF8String(PyObject_Str(value));
if (zero) {
msg = PyBytes_AsString(zero);
}
if (!msg)
return;
UE_LOG(LogPython, Error, TEXT("%s"), UTF8_TO_TCHAR(msg));
PyErr_Clear();
}
UWorld *ue_get_uworld(ue_PyUObject *py_obj) {
if (py_obj->ue_object->IsA<AActor>()) {
AActor *actor = (AActor *)py_obj->ue_object;
return actor->GetWorld();
}
if (py_obj->ue_object->IsA<UActorComponent>()) {
UActorComponent *component = (UActorComponent *)py_obj->ue_object;
return component->GetWorld();
}
return nullptr;
}