In this contest, you need to write a program (using any programming language), which connects to the server via TCP and plays a game. In this game, each player is represented as a circle flying around a rectangular field.
There are some items (also represented as circles) randomly placed on the field. Whenever a player intersects with an item, the item is removed from the field and the player's score is increased by one.
You can see the current game in real-time: https://aicontest.dev/
The game consists of 600 moves. Each move roughly takes 0.5s. Each player has position (x, y) and current speed (vx, vy). You can't instantly change the speed direction! On each turn you can specify the target position (target_x, target_y). The new position and new speed for the next turn are calculated like this:
- First, acceleration direction is calculated as (target_x - x, target_y - y).
- Second, acceleration (ax, ay) is calculated as acceleration direction multiplied by some coefficient to make it less than MAX_ACC = 20.0. Acceleration components are rounded to the nearest integers.
- New speed is calculated as (vx + ax, vy + ay).
- If the speed is bigger than MAX_SPEED = 100.0, it is clamped by MAX_SPEED.
- New coordinates are calculated as (x + vx, y + vy).
- If the player tries to fly outside of the field, it bounces off the side.
See details in the implementation: https://github.com/bminaiev/aicontest.dev/blob/master/common/src/game_state.rs#L112
Your program should connect to the 188.166.195.142 at port 7877.
The server sends the message HELLO.
Your program should send PLAY on the first line. On the second line you should send two words [LOGIN] [PASSWORD]. You can use any [LOGIN] which is not used yet.
Please don't use a password, which you use somewhere else. Just generate a new random password.
Passwords are stored in plaintext on the server. You need to use the same password
every time you connect to the server.
After that server sends the current state of the game using this format:
TURN [CUR_TURN] [MAX_TURNS] [WIDTH] [HEIGHT] [GAME_ID]
[NUM_PLAYERS]
[PLAYER_NAME] [SCORE] [X] [Y] [RADIUS] [V_X] [V_Y] [TARGET_X] [TARGET_Y]
... ([NUM_PLAYERS - 1] more lines)
[NUM_ITEMS]
[ITEM_X] [ITEM_Y] [RADIUS]
... ([NUM_ITEMS - 1] more lines)
END_STATE
The first player in the state is always your player.
[GAME_ID] is just a random string.
You can update the [TARGET_X] [TARGET_Y] by sending the command GO [NEW_TARGET_X] [NEW_TARGET_Y].
After that, the server updates the target, calculates the next state, and sends it back in the same format.
If you are using Linux you can play from a command line using nc like this:
$ nc 188.166.195.142 7877
HELLO
PLAY
test test
TURN 398 600 4195 3146 game-2023-05-04_18-42-18
3
test 0 390 1932 20 0 0 390 1932
basic-rust-45 16 2487 952 20 91 -14 2436 834
basic-rust-185 14 1868 599 20 -94 35 1615 499
5
4062 1072 25
3747 2866 66
1395 1460 20
3666 2242 25
1007 1635 21
END_STATE
GO 100 100
TURN 405 600 4195 3146 game-2023-05-04_18-42-18
3
test 0 390 1932 20 0 0 390 1932
basic-rust-45 17 2994 838 20 55 30 2770 1116
basic-rust-185 15 1206 519 20 -99 -14 1214 633
5
4062 1072 25
3747 2866 66
1395 1460 20
3666 2242 25
3462 2904 73
END_STATE
- Rust: https://github.com/bminaiev/aicontest.dev/tree/master/example-client
- Python: https://github.com/bminaiev/aicontest.dev/blob/master/example-client/python/player.py (use it on your own risk - it was fully written by GPT4, I didn't change anything).
- C++: https://github.com/bminaiev/aicontest.dev/blob/master/example-client/cpp/player.cpp (also generated by GPT4, code style is very bad, but it works).
- Please do not try to destabilize the system!
- Please do not hardcode the size of the field. It could change during the game based on the number of players.
- We ask for (target_x, target_y) instead of (ax, ay) to make it possible to play even if the latency to the server is bigger than one turn time. If you don't send a new target, the target from the previous turn is used, which could be a reasonable choice.
- Sometimes we will restart the server, consider adding a reconnection logic to your program. Please sleep for a couple of seconds before reconnection.
- (0, 0) corresponds to the top-left corner. (WIDTH, 0) corresponds to the top-right corner.