added joystick controller written by Dmitriy

remote_control/class_control_joystick.py

@@ -0,0 +1,150 @@
+import socket
+import pygame
+import pygame.joystick
+
+
+class robot:  # we have 4 arg for this class, because joysticks get the same (value, axis) events
+    def __init__(self, joy, ip, port):
+        self.joy = joy
+        self.ip = ip
+        self.port = port
+        self.robot0_stopped_1 = True
+        self.robot0_stopped_2 = True
+        self.robot0_stopped_3 = True
+        self.robot0_stopped_4 = True
+        self.rc_socket = socket.socket()
+        try:
+            self.rc_socket.connect((self.ip, self.port))
+        except socket.error():
+            print("couldn't connect to socket")
+
+    def joystick_init(self):  # Joystick's initialisation
+        self.joystick = pygame.joystick.Joystick(self.joy)
+        self.joystick.init()
+        self.axes = self.joystick.get_numaxes()
+
+    def control(self, event):  # the control of two robots with joysticks
+        joy = event.joy
+        value = event.value
+        axis = event.axis
+
+        if joy == self.joy:
+            if axis == 1:
+                if abs(value) > 0.2:
+                    u1 = u2 = -value
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_1 = False
+
+                elif not self.robot0_stopped_1:
+                    u1 = u2 = 0
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_1 = True
+            elif axis == 3:
+                if abs(value) > 0.2:
+                    u1 = value
+                    u2 = -value
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_2 = False
+
+                elif not self.robot0_stopped_2:
+                    u1 = u2 = 0
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_2 = True
+            elif axis == 2:
+                if value > 0.2:
+                    u1 = value/1.9
+                    u2 = value/1.2
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_3 = False
+
+                elif not self.robot0_stopped_3:
+                    u1 = u2 = 0
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_3 = True
+            elif axis == 5:
+                if value > 0.2:
+                    u1 = value/1.2
+                    u2 = value/1.9
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_4 = False
+
+                elif not self.robot0_stopped_4:
+                    u1 = u2 = 0
+                    self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+                    self.robot0_stopped_4 = True
+
+    def control_keyboard(self, event):  # keyboard control for robot1
+        command_received = False
+        if event.key == pygame.K_LEFT:
+            u1 = -1.0
+            u2 = 1.0
+            command_received = True
+        elif event.key == pygame.K_RIGHT:
+            u1 = 1.0
+            u2 = -1.0
+            command_received = True
+        elif event.key == pygame.K_UP:
+            u1 = -1.0
+            u2 = -1.0
+            command_received = True
+        elif event.key == pygame.K_DOWN:
+            u1 = 1.0
+            u2 = 1.0
+            command_received = True
+        if command_received:
+            self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+
+    def control_keyboard_2(self, event):  # keyboard control for robot2
+
+        command_received = False
+        if event.key == pygame.K_a:
+            u1 = -1.0
+            u2 = 1.0
+            command_received = True
+        elif event.key == pygame.K_d:
+            u1 = 1.0
+            u2 = -1.0
+            command_received = True
+        elif event.key == pygame.K_w:
+            u1 = -1.0
+            u2 = -1.0
+            command_received = True
+        elif event.key == pygame.K_s:
+            u1 = 1.0
+            u2 = 1.0
+            command_received = True
+        if command_received:
+            self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+
+    def control_keyboard_stop(self):  # stop for both robot
+
+        u1 = 0
+        u2 = 0
+        print("key released, resetting: ({},{})".format(u1, u2))
+        self.rc_socket.send('({},{})\n'.format(u1, u2).encode())
+
+def main():
+    pygame.init()
+    pygame.display.set_mode((640, 480))
+
+    robot_1 = robot(0, '192.168.1.102', 1234)
+    robot_1.joystick_init()
+    robot_2 = robot(1, '192.168.1.103', 1234)
+    robot_2.joystick_init()
+
+    while True:
+        events = pygame.event.get()
+        for event in events:
+            if event.type == pygame.JOYAXISMOTION:
+                robot_1.control(event)
+                robot_2.control(event)
+            elif event.type == pygame.KEYDOWN:
+                robot_1.control_keyboard(event)
+                robot_2.control_keyboard_2(event)
+            elif event.type == pygame.KEYUP:
+                robot_1.control_keyboard_stop()
+                robot_2.control_keyboard_stop()
+
+
+if __name__ == '__main__':
+    main()