Combat: Plane

This environment is part of the Atari environments. Please read that page first for general information.

Import	from pettingzoo.atari import combat_jet_v1
Actions	Discrete
Parallel API	Yes
Manual Control	No
Agents	agents= ['first_0', 'second_0']
Agents	2
Action Shape	(1,)
Action Values	[0,17]
Observation Shape	(256, 160, 3)
Observation Values	(0,255)

Combat’s plane mode is an adversarial game where timing, positioning, and keeping track of your opponent’s complex movements are key. The players fly around the map, able to control flight direction but not your speed. When your opponent is hit by your bullet, you score a point. Whenever you score a point, you are rewarded +1 and your opponent is penalized -1.

Official Combat manual

Environment parameters

Some environment parameters are common to all Atari environments and are described in the base multi-agent environment documentation.

Parameters specific to combat-plane are

combat_plane_v2.env(game_version="jet", guided_missile=True)

• game_version: Accepted arguments are “jet” or “bi-plane”. Whether the plane is a bi-plane or a jet. (Jets move faster)

• guided_missile: Whether the missile can be directed after being fired, or whether it is on a fixed path.

Action Space

In any given turn, an agent can choose from one of 18 actions.

Value	Meaning	Value	Meaning	Value	Meaning
0	NOOP	1	FIRE	2	UP
3	RIGHT	4	LEFT	5	DOWN
6	UPRIGHT	7	UPLEFT	8	DOWNRIGHT
9	DOWNLEFT	10	UPFIRE	11	RIGHTFIRE
12	LEFTFIRE	13	DOWNFIRE	14	UPRIGHTFIRE
15	UPLEFTFIRE	16	DOWNRIGHTFIRE	17	DOWNLEFTFIRE

See environment specification to see more information on the action meaning.

Version History

• v2: Minimal Action Space (1.18.0)

• v1: Breaking changes to entire API (1.4.0)

• v0: Initial versions release (1.0.0)