pac-man-bot

Pac man playing bot. Artificial Intelligence course project, BITS Pilani-Hyderabad Campus.
Note: This project is setup and run on Ubuntu 16.04

Basic Setup:

1. Installing pyenv

Used to control the python version being used. Follow the following steps:

 $ git clone https://github.com/pyenv/pyenv.git ~/.pyenv
 $ echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
 $ echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
 $ echo -e 'if command -v pyenv 1>/dev/null 2>&1; then\n  eval "$(pyenv init -)"\nfi' >> ~/.bash_profile

Note: Zsh note: Modify your ~/.zshenv file instead of ~/.bash_profile. Ubuntu and Fedora note: Modify your ~/.bashrc file instead of ~/.bash_profile.

Restart Shell for changes to take effect:

$ exec "$SHELL"

GitHub link to pyenv : https://github.com/pyenv/pyenv

2. Installing Python3 and setting up Virtualenv

• Installing Python3:

pyenv install 3.6.4

• Setting up virtualenv:

pyenv virtualenv 3.6.4 (name_of_env)

• Create directory and move into it

• Assign the virtualenv to the directory

pyenv local (name_of_env)

Note: This will create a .python-version file that will automatically set the active VirtualEnv upon entering the directory

3. Installing Serpent.AI

• Go back into the folder created earlier, you should automatically enter the created VirtualEnv.
• Run pip install SerpentAI
• Then run 'serpent setup' to install the remaining dependencies automatically.
• GitHub link to Serpent.AI : https://github.com/SerpentAI/SerpentAI

4. Installing pacman

• Installing :

sudo apt-get update
sudo apt-get install njam

Note: We are using njam and not the normal pacman for ubuntu because of some issues with setting up in windowed mode with serpent.ai(Mentioned in the follwing sections)

• Setting up : Run serpent generate game For the name of the game prompt enter - Njam
  For the next prompt enter - executable

Next, Open plugins/SerpentNjamGamePlugin/files/serpent_Njam_game.py and change the following:

kwargs["window_name"] = "Njam     http://njam.sourceforge.net"
kwargs["executable_path"] = "/usr/games/njam -w"

as Njam is by default in fullsceen mode, alias it to 'njam -w' in ~/.bashrc
Enter this in ~/.bashrc : alias njam='njam -w

• Run the game : serpent launch Njam

5. Installing and setting up redis

Redis is essentially a db used to store image cache

• redis Installation :

sudo apt-get update
sudo apt-get install build-essential tcl   

cd /tmp

curl -O http://download.redis.io/redis-stable.tar.gz
tar xzvf redis-stable.tar.gz

cd redis-stable

make
make test
sudo make install

• Configuring redis:

sudo mkdir /etc/redis
sudo cp /tmp/redis-stable/redis.conf /etc/redis

sudo nano /etc/redis/redis.conf

In the file, find the supervised directive. Currently, this is set to no. Since we are running an operating system that uses the systemd init system, we can change this to systemd
Next, find the dir directory. Change the value to /var/lib/redis

• Create a redis systemd unit file:

sudo nano /etc/systemd/system/redis.service
Paste the following code into it:

[Unit]
Description=Redis In-Memory Data Store
After=network.target

[Service]
User=redis
Group=redis
ExecStart=/usr/local/bin/redis-server /etc/redis/redis.conf
ExecStop=/usr/local/bin/redis-cli shutdown
Restart=always

[Install]
WantedBy=multi-user.target

• Create the redis user, group and directories:

sudo adduser --system --group --no-create-home redis

sudo mkdir /var/lib/redis
sudo chown redis:redis /var/lib/redis
sudo chmod 770 /var/lib/redis

• Start and test Redis:

sudo systemctl start redis

redis-cli

• Enable redis to start at boot:
  sudo systemctl enable redis