143 lines
3.9 KiB
Python
143 lines
3.9 KiB
Python
from __future__ import print_function
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from __future__ import division
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from math import pi
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from time import sleep
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from .utils import read_config
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from .imagereaders import NaoImageReader
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from .finders import BallFinder, GoalFinder
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from .movements import NaoMover
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class Striker(object):
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def __init__(self, nao_ip, nao_port, res, red_hsv, white_hsv,
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min_radius, run_after):
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self.mover = NaoMover(nao_ip=nao_ip, nao_port=nao_port)
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self.mover.stand_up()
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self.video_top = NaoImageReader(nao_ip, port=nao_port, res=res,
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fps=30, cam_id=0)
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self.video_bot = NaoImageReader(nao_ip, port=nao_port, res=res,
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fps=30, cam_id=1)
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self.finder = BallFinder(red_hsv[0], red_hsv[1], min_radius, None)
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self.lock_counter = 0
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self.loss_counter = 0
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self.run_after = run_after
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def ball_scan(self):
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yaw = self.mover.get_head_angles()[0]
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mag = abs(yaw)
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sign = 1 if yaw >= 0 else -1
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if mag > 2:
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self.mover.move_to(0, 0, sign * pi / 12)
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else:
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self.mover.change_head_angles(sign * pi / 4, 0, 0.5)
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def get_ball_angles_from_camera(self, cam):
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try:
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(x, y), _ = self.finder.find_colored_ball(
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cam.get_frame()
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)
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self.loss_counter = 0
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x, y = cam.to_relative(x, y)
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x, y = cam.to_angles(x, y)
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return x, y
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except TypeError:
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raise ValueError('Ball not found')
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def ball_tracking(self):
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cams = [self.video_top, self.video_bot]
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in_sight = False
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for cam in cams:
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try:
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x, y = self.get_ball_angles_from_camera(self, cam)
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in_sight = True
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break
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except ValueError:
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pass
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if not in_sight:
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print('No ball in sight')
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self.loss_counter += 1
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if self.loss_counter > 5:
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self.ball_scan()
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return
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self.turn_to_ball(x, y)
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def run_after(self):
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self.mover.move_to(0.3, 0, 0)
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def turn_to_ball(self, ball_x, ball_y):
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d_yaw, d_pitch = ball_x, 0
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print('ball yaw', d_yaw)
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if (abs(d_yaw) > 0.01):
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self.mover.change_head_angles(d_yaw, d_pitch,
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abs(d_yaw) / 2)
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sleep(1)
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self.mover.wait()
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yaw = self.mover.get_head_angles()[0]
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print('head yaw', yaw)
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if abs(yaw) > 0.05:
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print('Going to rotate')
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self.mover.set_head_angles(0, 0, 0.5)
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self.mover.move_to(0, 0, yaw)
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self.mover.wait()
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def align_to_goal(self):
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try:
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x, y = self.get_ball_angles_from_camera(self.video_bot)
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print(x, y)
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if abs(x) > 0.05:
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self.turn_to_ball(x, y)
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return
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except Exception as e:
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print(e)
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print('No ball')
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sleep(0.1)
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return
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print('moving')
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increment = 0.1
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if y > 0.35:
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self.mover.move_to(-0.05, 0, 0)
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elif y < 0.25:
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self.mover.move_to(0.05, 0, 0)
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self.mover.wait()
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self.mover.move_to(0, increment, 0)
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self.mover.wait()
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def close(self):
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self.mover.rest()
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self.video_top.close()
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self.video_bot.close()
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if __name__ == '__main__':
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cfg = read_config()
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follower = Striker(
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nao_ip=cfg['ip'],
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nao_port=cfg['port'],
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res=cfg['res'],
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red_hsv=cfg['red'],
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white_hsv=cfg['white'],
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min_radius=cfg['min_radius'],
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run_after=False
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)
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try:
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while True:
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try:
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print(follower.get_ball_angles_from_camera(
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follower.video_bot)[1])
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except Exception as e:
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print(e)
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finally:
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follower.close()
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