Skip to content
Open
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension


Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 7 additions & 2 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -98,10 +98,15 @@ The goal is not only to make the turtle move but also to get familiar with the t
* [Linux Command Line Basics](https://ubuntu.com/tutorials/command-line-for-beginners#1-overview)

---

### Steps

#### 1. Clone the Repository
#### 1.1. Fork this repository.

**[DO NOT PULL OR MAKE CHANGES ON THIS REPO]**

#### 1.2. Clone the Repository.

**[Make sure that you are cloning your own fork and not this repo.]**

```bash
git clone <repository-url>
Expand Down
Binary file added src/task1/task1.png
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Binary file added src/task2/Screenshot 2025-08-29 141930.png
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Binary file added src/task2/Screenshot 2025-08-29 141947.png
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
21 changes: 21 additions & 0 deletions src/task2/src/turtle_draw/package.xml
Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
<?xml version="1.0"?>
<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
<package format="3">
<name>turtle_draw</name>
<version>0.0.0</version>
<description>TODO: Package description</description>
<maintainer email="root@todo.todo">root</maintainer>
<license>TODO: License declaration</license>

<depend>rclpy</depend>
<depend>geometry_msgs</depend>

<test_depend>ament_copyright</test_depend>
<test_depend>ament_flake8</test_depend>
<test_depend>ament_pep257</test_depend>
<test_depend>python3-pytest</test_depend>

<export>
<build_type>ament_python</build_type>
</export>
</package>
Empty file.
4 changes: 4 additions & 0 deletions src/task2/src/turtle_draw/setup.cfg
Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
[develop]
script_dir=$base/lib/turtle_draw
[install]
install_scripts=$base/lib/turtle_draw
26 changes: 26 additions & 0 deletions src/task2/src/turtle_draw/setup.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
from setuptools import find_packages, setup

package_name = 'turtle_draw'

setup(
name=package_name,
version='0.0.0',
packages=find_packages(exclude=['test']),
data_files=[
('share/ament_index/resource_index/packages',
['resource/' + package_name]),
('share/' + package_name, ['package.xml']),
],
install_requires=['setuptools'],
zip_safe=True,
maintainer='root',
maintainer_email='root@todo.todo',
description='TODO: Package description',
license='TODO: License declaration',
tests_require=['pytest'],
entry_points={
'console_scripts': [
'circle_drawer = turtle_draw.circle_drawer:main',
],
}
)
25 changes: 25 additions & 0 deletions src/task2/src/turtle_draw/test/test_copyright.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
# Copyright 2015 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ament_copyright.main import main
import pytest


# Remove the `skip` decorator once the source file(s) have a copyright header
@pytest.mark.skip(reason='No copyright header has been placed in the generated source file.')
@pytest.mark.copyright
@pytest.mark.linter
def test_copyright():
rc = main(argv=['.', 'test'])
assert rc == 0, 'Found errors'
25 changes: 25 additions & 0 deletions src/task2/src/turtle_draw/test/test_flake8.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
# Copyright 2017 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ament_flake8.main import main_with_errors
import pytest


@pytest.mark.flake8
@pytest.mark.linter
def test_flake8():
rc, errors = main_with_errors(argv=[])
assert rc == 0, \
'Found %d code style errors / warnings:\n' % len(errors) + \
'\n'.join(errors)
23 changes: 23 additions & 0 deletions src/task2/src/turtle_draw/test/test_pep257.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,23 @@
# Copyright 2015 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ament_pep257.main import main
import pytest


@pytest.mark.linter
@pytest.mark.pep257
def test_pep257():
rc = main(argv=['.', 'test'])
assert rc == 0, 'Found code style errors / warnings'
Empty file.
79 changes: 79 additions & 0 deletions src/task2/src/turtle_draw/turtle_draw/circle_drawer.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,79 @@
#!/usr/bin/env python3
import rclpy
from rclpy.node import Node
from geometry_msgs.msg import Twist
from turtlesim.msg import Pose
import math
import time


class CircleDrawer(Node):
def __init__(self):
super().__init__('circle_drawer')

# Publisher to turtle velocities
self.cmd_pub = self.create_publisher(Twist, '/turtle1/cmd_vel', 10)

# Subscriber to turtle pose
self.pose_sub = self.create_subscription(Pose, '/turtle1/pose', self.pose_callback, 10)

self.pose = None

self.radius = 2.0
self.center_x = 5.5
self.center_y = 5.5
self.num_points = 36
self.points = self.generate_circle_points()

self.current_goal_index = 0
self.reached_goal = True

self.timer = self.create_timer(0.1, self.control_loop)

def generate_circle_points(self):
points = []
for i in range(self.num_points):
theta = 2 * math.pi * i / self.num_points
x = self.center_x + self.radius * math.cos(theta)
y = self.center_y + self.radius * math.sin(theta)
points.append((x, y))
return points

def pose_callback(self, msg):
self.pose = msg

def control_loop(self):
if self.pose is None:
return

goal_x, goal_y = self.points[self.current_goal_index]
dx = goal_x - self.pose.x
dy = goal_y - self.pose.y
distance = math.sqrt(dx**2 + dy**2)

msg = Twist()

if distance > 0.1:
angle_to_goal = math.atan2(dy, dx)
angle_diff = angle_to_goal - self.pose.theta

angle_diff = math.atan2(math.sin(angle_diff), math.cos(angle_diff))

msg.linear.x = 1.5 * distance
msg.angular.z = 6.0 * angle_diff
else:
self.current_goal_index = (self.current_goal_index + 1) % self.num_points

self.cmd_pub.publish(msg)


def main(args=None):
rclpy.init(args=args)
node = CircleDrawer()
rclpy.spin(node)
node.destroy_node()
rclpy.shutdown()


if __name__ == '__main__':
main()
1 change: 1 addition & 0 deletions src/task3/task3_link.txt
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
https://youtu.be/WZpvjGgCNSw
22 changes: 22 additions & 0 deletions src/task3/turtle_swarm/package.xml
Original file line number Diff line number Diff line change
@@ -0,0 +1,22 @@
<?xml version="1.0"?>
<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
<package format="3">
<name>turtle_swarm</name>
<version>0.0.0</version>
<description>TODO: Package description</description>
<maintainer email="root@todo.todo">root</maintainer>
<license>TODO: License declaration</license>

<depend>rclpy</depend>
<depend>geometry_msgs</depend>
<depend>turtlesim</depend>

<test_depend>ament_copyright</test_depend>
<test_depend>ament_flake8</test_depend>
<test_depend>ament_pep257</test_depend>
<test_depend>python3-pytest</test_depend>

<export>
<build_type>ament_python</build_type>
</export>
</package>
Empty file.
4 changes: 4 additions & 0 deletions src/task3/turtle_swarm/setup.cfg
Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
[develop]
script_dir=$base/lib/turtle_swarm
[install]
install_scripts=$base/lib/turtle_swarm
25 changes: 25 additions & 0 deletions src/task3/turtle_swarm/setup.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
from setuptools import find_packages, setup

package_name = 'turtle_swarm'

setup(
name=package_name,
version='0.0.0',
packages=find_packages(exclude=['test']),
data_files=[
('share/ament_index/resource_index/packages',
['resource/' + package_name]),
('share/' + package_name, ['package.xml']),
],
install_requires=['setuptools'],
zip_safe=True,
maintainer='root',
maintainer_email='root@todo.todo',
description='TODO: Package description',
license='TODO: License declaration',
tests_require=['pytest'],
entry_points={
'console_scripts': ['swarm_node = turtle_swarm.swarm_node:main'
],
},
)
25 changes: 25 additions & 0 deletions src/task3/turtle_swarm/test/test_copyright.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
# Copyright 2015 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ament_copyright.main import main
import pytest


# Remove the `skip` decorator once the source file(s) have a copyright header
@pytest.mark.skip(reason='No copyright header has been placed in the generated source file.')
@pytest.mark.copyright
@pytest.mark.linter
def test_copyright():
rc = main(argv=['.', 'test'])
assert rc == 0, 'Found errors'
25 changes: 25 additions & 0 deletions src/task3/turtle_swarm/test/test_flake8.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
# Copyright 2017 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ament_flake8.main import main_with_errors
import pytest


@pytest.mark.flake8
@pytest.mark.linter
def test_flake8():
rc, errors = main_with_errors(argv=[])
assert rc == 0, \
'Found %d code style errors / warnings:\n' % len(errors) + \
'\n'.join(errors)
23 changes: 23 additions & 0 deletions src/task3/turtle_swarm/test/test_pep257.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,23 @@
# Copyright 2015 Open Source Robotics Foundation, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from ament_pep257.main import main
import pytest


@pytest.mark.linter
@pytest.mark.pep257
def test_pep257():
rc = main(argv=['.', 'test'])
assert rc == 0, 'Found code style errors / warnings'
Empty file.
Loading