Files
pyrobolearn/examples/robots/quadcopter_controller.py

87 lines
3.3 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Control a quadcopter in the air using an Xbox or Playstation game controller.
how to run:
```
$ python quadcopter_controller.py --help # for help
$ python quadcopter_controller.py --controller keyboard # to use the keyboard
$ python quadcopter_controller.py --controller xbox # to use Xbox game controller
$ python quadcopter_controller.py --controller ps # to use PS game controller
```
Mapping of the keyboard interface:
- `top arrow`: move forward
- `bottom arrow`: move backward
- `left arrow`: move sideways to the left
- `right arrow`: move sideways to the right
- `ctrl + top arrow`: ascend
- `ctrl + bottom arrow`: descend
- `ctrl + left arrow`: turn to the right
- `ctrl + right arrow`: turn to the left
- `space`: switch between first-person and third-person view
Mapping between the controller and the quadcopter:
- left joystick: use to move the quadcopter
- right joystick: use to ascend/descend and turn
- south button (X on PlayStation and A on Xbox): change between the first-person and third-person view.
- east button (circle on PlayStation and B on Xbox): increase the speed
- west button (square on PlayStation and X on Xbox): decrease the speed
"""
# import numpy as np
from itertools import count
import argparse
import pyrobolearn as prl
# create parser to select the game controller
parser = argparse.ArgumentParser()
parser.add_argument('-c', '--controller', help='the controller to use', type=str,
choices=['keyboard', 'xbox', 'ps'], default='keyboard')
args = parser.parse_args()
# load corresponding interface
if args.controller == 'keyboard': # keyboard interface
from pyrobolearn.tools.interfaces.mouse_keyboard.mousekeyboard import MouseKeyboardInterface as Controller
from pyrobolearn.tools.bridges.mouse_keyboard.bridge_mousekeyboard_quadcopter \
import BridgeMouseKeyboardQuadcopter as Bridge
elif args.controller == 'xbox': # Xbox interface
from pyrobolearn.tools.interfaces.controllers.xbox import XboxControllerInterface as Controller
from pyrobolearn.tools.bridges.controllers.robots.bridge_controller_quadcopter import BridgeControllerQuadcopter \
as Bridge
elif args.controller == 'ps': # PS interface
from pyrobolearn.tools.interfaces.controllers.playstation import PSControllerInterface as Controller
from pyrobolearn.tools.bridges.controllers.robots.bridge_controller_quadcopter import BridgeControllerQuadcopter \
as Bridge
else:
raise NotImplementedError("Unknown game controller")
# create simulator
sim = prl.simulators.Bullet()
# create basic world (with a floor and gravity enabled by default)
world = prl.worlds.BasicWorld(sim)
# load quadcopter
robot = prl.robots.Quadcopter(sim, position=[0., 0., 2.])
world.load_robot(robot)
# load interface that accepts input events
controller = Controller(use_thread=True, verbose=False)
# load bridge that connects the interface/controller with the quadcopter
# The bridge is the one that maps the input events from the interface to commands sent to the quadcopter
bridge = Bridge(quadcopter=robot, interface=controller)
# run simulator
for t in count():
# perform a step with the bridge and interface
bridge.step(update_interface=True)
# perform one step in the world
world.step(sleep_dt=1. / 240)