hackatari 0.0.1

Extended Atari Learning Environments

HackAtari

This repository relies on OCAtari, a fork of the OpenAI Gym Atari environment. The OCAtari repository can be found here

Installation

To install the OCAtari environment, please follow the instructions in the OCAtari repository, or simply run the following command:

pip install ocatari

To install the hackatari environment, please clone this repository and run the following command:

git clone https://github.com/k4ntz/HackAtari
cd HackAtari
pip install -e .

Usage

To use the HackAtari environment, simply import it as you would any other OpenAI Gym environment: You can run the run.py file to start the original game or any of the modified versions. E.g.:

python run.py -g Freeway # Starts normal Freeway (random agent)
python run.py -g Freeway -hu # Starts Freeway with the cars being invisible (interactive/human playing mode)
python run.py -g Freeway -m color8 # Starts Freeway with the cars of color #8 being (i.e. invisible) (random agent)
python run.py -g Freeway -m stop3 # Starts Freeway with stopping mode #3 (i.e. static cars) (random agent)
python run.py -g Seaquest -m oxygen disable_enemies gravity # Starts Seaquest with infinite oxygen, no enemy, gravity (random agent)
python run.py -g Kangaroo -m random_init disable_monkeys # Starts Kangaroo with random initial floor and no monkeys (random agent)

See bellow for a complete list of all modifications and their corresponding arguments.

This is the list of games we have created new Versions and options for during the "HackAtari" project. Each file, when started without additional parameters, starts the original game played by the DQN agent. All modes/hacks/changes can be activated individually or in any combination via the command line.

For all games, you can use -hu argument on the script to start the game in Human Mode and play the game yourself.

Below you will find a list of modified games with their respective command line commands and their effects.

Boxing:

Command	Effect
-g	Enables Gravity pull on the player character
-db	Enables drunken boxing mode where the player character staggers in a circular motion
-oa	Enables one armed mode where the player character only uses the right arm

Breakout:

Command	Effect
-d [right, left]	Set the drift direction "right" or "left"
-s 0-2	Sets the strenght of the drift, 0 is no drift

Note: In Breakout, the drift will not work if human mode is enabled due to issues with the rendering.

Fishing Derby:

Command	Effect
-sm 0-4	0 = default behavior. 1 = x-position of the shark is fixed at 105, which is directly below the enemy player - 2 = x-position of the shark is fixed at 25, which is directly below the player - 3 = the shark teleports from the left to the right and the other way around when x-position 25 or 105 is reached - 4 = the shark moves from the left to the right with a very high velocity. When reaching x-position 120 the shark is set back to x-position 1 and starts to move again in the same speed up way as described.
-fm 0-3	= = default behavior. 1 = The x-position of the fish is changed. They are mainly on the player's side. 2 = The x-position of the fish is changed. They are mainly on the enemy's side. 3 = The x-position of the fish is changed. They are in the middle betwen player and enemy.

Freeway:

Command	Effect
-c 0-8	Change the colors of the cars. 0 = standard; 1 = black; 2 = grey; 3 = red; 4 = white; 5 = green; 6 = purple; 7 = blue; 8 = "invisible"
-sm 0-3	Change the behavior of the cars: 1 = cars stop randomly and drive off again; 2 = all cars stop simultaneously and drive off again simultaneously; 3 = all cars stop.

Frostbite:

Command	Effect
-c	Argument for setting the color of line 1 of the ice floes. The chosen value has to be between 0 and 255. The default value is 12
-l 1-4	Argument for choosing a line of ice floes for color changing.
-c3	This mode recolors 3 lines at once.
-cui	Argument for setting the color of the UI for temperature, life and points. The chosen value has to be between 6 and 254. The default value is 0 = white.
-cfp	Argument for enabling positional changes to the ice floes. Needs to be set for .fp to haven an effect.
-fp 0-255	Argument for setting the x-position of the ice floes. The input value has to be between 0 and 255.
-en 0-3	Argument for changing the enemies number. The value has to be between 0 and 3. 0 is the unaltered version.

Kangaroo:

Command	Effect
-f	Set the starting floor (0, 1, or 2)
-dm	Disable monkeys in the game
-dc	Disable the falling coconut in the game
-e	Enable easy mode
-ra	Rndom difficulty

MS Pacman

Command	Effect
-cg	Caged ghosts, ghosts will not leave the middle
-orange, cyan, pink, red	cages ghosts selectivly by color
-npp 0-4	number of available power pills
-eg	ghosts can always be eaten, power pills do nothing
-i	inverted mode, eating a power pill maked the ghos dangerous again

Seaquest

Command	Effect
- o	Set the oxygen to unlimited mode
-de	disables all enemies
-gr	Enable graxity mode.

Note: If all enemies are disabled, stray projectiles can occure in certain situations which will still kill the player. We haven't found a fix for this.

Space Invaders:

Command	Effect
-pos 35-53	Moves the shields side to side via an offset.
-ds	Disables all the shields.
-l, -r, -m	disables the shields (left, right, middle) one by one selectively
-c	enabled curved shots

Tennis

Command	Effect
-w	Enables wind drift