Add returnable python commands

requires modified abstractscreenrenderer

PyInt.cpp

@@ -105,6 +105,32 @@ void render_task::run() {
         if( outputwidth  != nullptr ) { Py_DECREF( outputwidth ); }
         Py_DECREF( output );
     }
+
+    // get commands from renderer
+	auto *commandsPO = PyObject_CallMethod(m_renderer, "getCommands", nullptr);
+	std::vector<std::string> commands = python_external_utils::PyObjectToStringArray(commandsPO);
+	Py_DECREF(commandsPO);
+
+    // we perform any actions ONLY when there are any commands in buffer
+	if (!commands.empty())
+	{
+		for (const auto &command : commands)
+		{
+			auto it = simulation::commandMap.find(command);
+			if (it != simulation::commandMap.end())
+			{
+				// command found
+				command_data cd;
+				cd.command = it->second;
+				cd.action = GLFW_PRESS;
+				simulation::Commands.push(cd, static_cast<std::size_t>(command_target::vehicle) | 1); // player train is always 1
+			}
+			else
+				ErrorLog("Python: Command [" + command + "] not found!");
+        }
+	}
+
+
 }
 
 void render_task::upload()
@@ -470,6 +496,43 @@ python_taskqueue::error() {
     }
 }
 
+
+std::vector<std::string> python_external_utils::PyObjectToStringArray(PyObject *pyList)
+{
+	std::vector<std::string> result;
+
+	if (!PySequence_Check(pyList))
+	{
+		ErrorLog("Provided PyObject is not a sequence.");
+		return result;
+	}
+
+	Py_ssize_t size = PySequence_Size(pyList);
+	for (Py_ssize_t i = 0; i < size; ++i)
+	{
+		PyObject *item = PySequence_GetItem(pyList, i); // Increments reference count
+		if (item == nullptr)
+		{
+			ErrorLog("Failed to get item from sequence.");
+			return result;
+		}
+
+		const char *str = PyString_AsString(item);
+		if (str == nullptr)
+		{
+			Py_DECREF(item);
+			ErrorLog("Failed to convert item to string.");
+			return result;
+		}
+
+		result.push_back(std::string(str));
+		Py_DECREF(item); // Decrease reference count for the item
+	}
+
+	return result;
+}
+
+
 #ifdef __GNUC__
 #pragma GCC diagnostic pop
 #endif