yadnyesh_assignment1_submission

yadnyesh-24/drawsquare.py

@@ -0,0 +1,57 @@
+import rclpy
+from rclpy.node import Node
+from std_msgs.msg import String
+from geometry_msgs.msg import Twist
+import math
+import time
+from std_msgs.msg import Int32
+
+
+class drawsquare(Node):
+
+    def __init__(self):
+        super().__init__('drawsquare')
+        self.publisher_ = self.create_publisher(Twist, '/turtle1/cmd_vel', 10)
+        self.count = self.create_publisher(Int32, 'pose', 10)
+        go=Twist()
+        go.linear.x=3.0
+        go.angular.z=0.0
+        turn=Twist()
+        turn.linear.x=0.0
+        turn.angular.z=math.pi/2
+        self.i=0
+
+        while True :
+            self.publisher_.publish(go)
+            time.sleep(2)
+            self.publisher_.publish(turn)
+            time.sleep(1)
+            self.publisher_.publish(go)
+            time.sleep(2)
+            self.publisher_.publish(turn)
+            time.sleep(1)
+            self.publisher_.publish(go)
+            time.sleep(2)
+            self.publisher_.publish(turn)
+            time.sleep(1)
+            self.publisher_.publish(go)
+            time.sleep(2)
+            self.publisher_.publish(turn)
+            time.sleep(1)
+            self.i=self.i+1
+            msg=Int32()
+            msg.data=self.i
+            self.count.publish(msg)
+
+
+def main(args=None):
+
+    rclpy.init(args=args)
+    node = drawsquare()
+    drawsquare
+    drawsquare.destroy_node()
+    rclpy.shutdown()
+
+
+if __name__ == '__main__':
+    main()

yadnyesh-24/subscriber.py

@@ -0,0 +1,32 @@
+import rclpy
+from rclpy.node import Node
+from std_msgs.msg import Int32
+
+
+class count(Node):
+
+    def __init__(self):
+        super().__init__('count')
+        self.subscription = self.create_subscription(
+            Int32,
+            'pose',
+            self.listener_callback,
+            10)
+        self.subscription  # prevent unused variable warning
+
+    def listener_callback(self, msg):
+        self.get_logger().info('Number of turns moved: "%s"' % msg.data)
+
+
+def main(args=None):
+    rclpy.init(args=args)
+
+    node = count()
+
+    rclpy.spin(node)
+    node.destroy_node()
+    rclpy.shutdown()
+
+
+if __name__ == '__main__':
+    main()