Space collector

Space collector game

Rules

• Square 20 000 x 20 000 kms
• Random number of planets (between 7 and 15) and positions of planets, central symmetry so that every team "sees" the same map
• Collect your planets with your collector
  • Slow speed
• Attack enemies with your five attackers
  • Fast speed
  • High energy attack < 5 000 kms
    • choose angle
    • 1 second to wait between fires of an attacker
• Explore with your explorer
  • Normal speed
  • Sees its planets and its spaceships
  • Sees enemy spaceships around him < 5 000 kms
• When a unit is touched by a high energy attack
  • Must return to its base to be repaired
    • Attacker can't attack
    • Explorators can't use their radar to see enemy spaceships
    • Collectors can't collect planets, they loose the collected planets (left in place)
• When a team has collected all its planets, the game stops
• When the game has run 5 minutes, the game stops

Commands

General syntax

COMMAND {ship_id} {parameters}

• {ship_id}: identifier of the spaceship
  • 1, 2, 3, 4, 5: attackers
  • 6, 7: explorers
  • 8, 9: collectors
• {parameters}: parameters of the command
  • {angle}: integer, degrees, between 0 and 359, counter clockwise, 0 pointing right
  • {speed}: integer in kms/s

Each command returns a response, made with:

• {planet_id} is between 0 and 65 535
• {ship_id} is between 1 and 9
• {abscissa} and {ordinate} are between 0 and 19 999 ((0, 0) is the bottom left corner)

Move

MOVE {ship_id} {angle} {speed}

Changes the speed and angle of the spaceship.

Maximum speed:

• 1 000 kms/s for collectors
• 2 000 kms/s for explorers
• 3 000 kms/s for attackers

Response is OK.

If a collector is less than 200 kms far from one of its planets, it collects the planet if it is not yet carrying a planet and it is not broken.

If a collector is less than 200 kms far from the base while carrying a planet, the planet is collected. 1000 points are added to player's score.

Fire

FIRE {ship_id} {angle}

Fire a high energy attack, at {angle} angle. Length of the attack is 5 000 kms.

Any enemy spaceship less than 200 kms far from the high enery attack is now broken. Some points are added to player's score:

• 15 points for an attacker
• 20 points for an explorer
• 30 points for a collector

This command is only valid for an attacker.

Response is OK (even if the fire rate — at most one fire per second per spaceship — is not respected, and in this case the command is ignored).

Radar

RADAR {ship_id}

Starts the radar of an explorer.

Response is a one line string. It is composed of several elements, separated by commas. The elements are:

• P {planet_id} {abscissa} {ordinate} {ship_id} {saved}: one of your planets, at a given position, the ship_id is the ID of the collector that collected the planet, or -1 if not collected, saved is 1 when planet is at base station, otherwise 0
• S {team} {ship_id} {abscissa} {ordinate} {broken}: a spaceship, team 0 is yours, team 1 to 3 are opponents, broken is 0 or 1, 1 meaning that the ship was targeted by a high energy attack (your spaceships are always present even if the explorer is broken)
• B {abscissa} {ordinate}: your base station's position (always present in radar information)

If an explorer is broken, it can't see enemy spaceships. If not, it can see enemy spaceships less than 5 000 kms far from the explorer.

Commands

Installation

python3.11 -m venv venv
. venv/bin/activate
# to play
pip install --upgrade space_collector
# to get development dependencies and improve the game
pip install --upgrade space_collector[dev]

Launch game

# In an activated virtual environment

# choose a free port
PORT=12345
# start the server
python -m space_collector.game.server -p $PORT --timeout 10 &
# start the viewer
python -m space_collector.viewer -p $PORT &
# start the viewer on small screens
python -m space_collector.viewer -p $PORT --small-window&
# start players
# using serial port
SERIAL=COM8          # on Windows
SERIAL=/dev/ttyUSB0  # on Linux
python -m space_collector.serial2tcp -p $PORT --serial $SERIAL --team-name "CHANGE ME"

Kill all clients and server

# In an activated virtual environment
python -m space_collector.killall

Install git hook

pre-commit install

Lint

flake8

Launch test

pytest

Publish

uv build
uv publish

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