Meerkat API Extension # Meerkat API Extension ## Wrapper Layer Create a Rust-based wrapper around the Meerkat API. This wrapper intercepts game state updates and allows the bot to make decisions before its turn. ## Preemptive Action Queue Implement a queue for preemptive actions (e.g., fold immediately). When the game state updates, the wrapper checks the queue and submits actions if applicable. ## Event-Driven Architecture Use an event-driven design to monitor game state changes (e.g., new cards dealt, opponent actions). Trigger bot decision-making logic based on these events. ### Example Workflow The bot receives a game state update (e.g., new cards dealt). The wrapper checks if the bot has queued a preemptive action (e.g., fold). If a preemptive action exists, the wrapper submits it to the Meerkat API. If no preemptive action exists, the bot waits for its turn and acts normally. ## Rust Implementation `struct MeerkatWrapper { meerkat_api: MeerkatAPI, preemptive_action: Option, } impl MeerkatWrapper { fn new(api: MeerkatAPI) -> Self { Self { meerkat_api: api, preemptive_action: None, } } fn queue_preemptive_action(&mut self, action: Action) { self.preemptive_action = Some(action); } fn on_game_state_update(&mut self, state: GameState) { if let Some(action) = self.preemptive_action.take() { self.meerkat_api.submit_action(action); } else { // Normal turn-based logic let decision = self.bot.make_decision(&state); self.meerkat_api.submit_action(decision); } } }` `#[derive(Clone, Debug)] pub enum Action { Fold, Call, Raise(f64), } pub struct MeerkatBot { preemptive_action: Option, } impl MeerkatBot { pub fn new() -> Self { Self { preemptive_action: None, } } pub fn queue_preemptive_action(&mut self, action: Action) { self.preemptive_action = Some(action); } pub fn on_game_state_update(&mut self, game_info: GameInfo) -> Option { if let Some(action) = self.preemptive_action.take() { // Submit the preemptive action if it's the bot's turn if game_info.current_player == self.player_id() { return Some(action); } } // Default decision-making logic self.make_decision(&game_info) } fn player_id(&self) -> u32 { // Return the bot's player ID 1 // Example } fn make_decision(&self, game_info: &GameInfo) -> Option { // Implement decision-making logic here None } }` `fn main() { let mut bot = MeerkatBot::new(); // Queue a preemptive action (e.g., fold immediately) bot.queue_preemptive_action(Action::Fold); // Simulate a game state update let game_info = GameInfo { table_info: TableInfo { table_id: 1, table_size: 6, blinds: (1.0, 2.0), players: vec![ PlayerInfo { id: 1, stack: 100.0, position: Position::Button, statistics: PlayerStatistics::default(), }, // Add other players... ], }, game_state: GameState { community_cards: vec![], pot_size: 3.0, current_bet: 2.0, active_players: vec![1, 2, 3], }, hand_id: 12345, current_player: 1, // Bot's turn }; // Handle the game state update if let Some(action) = bot.on_game_state_update(game_info) { println!("Bot action: {:?}", action); } }` ## Representing Cards A standard deck has 52 cards, which can be represented using a single byte (u8). Each card can be encoded as follows: 4 bits for the rank (2, 3, 4, ..., Ace). 2 bits for the suit (Clubs, Diamonds, Hearts, Spades). ### Card Encoding `#[derive(Debug, Clone, Copy, PartialEq, Eq)] pub struct Card(u8); impl Card { pub const RANK_MASK: u8 = 0b1111; // 4 bits for rank pub const SUIT_MASK: u8 = 0b110000; // 2 bits for suit pub fn new(rank: u8, suit: u8) -> Self { assert!(rank <= 13, "Rank must be between 2 and 14 (Ace)"); assert!(suit <= 3, "Suit must be between 0 and 3"); Self((suit << 4) | (rank & Self::RANK_MASK)) } pub fn rank(&self) -> u8 { self.0 & Self::RANK_MASK } pub fn suit(&self) -> u8 { (self.0 & Self::SUIT_MASK) >> 4 } }` ### Example Usage `let ace_of_spades = Card::new(14, 3); // Rank 14 (Ace), Suit 3 (Spades) println!("Rank: {}, Suit: {}", ace_of_spades.rank(), ace_of_spades.suit());` ## Representing Hands A hand consists of 2 cards (in Texas Hold'em). We can represent it as a tuple of two Card instances or as a single u16 for compactness. ### Hand Representation `#[derive(Debug, Clone, Copy, PartialEq, Eq)] pub struct Hand(Card, Card); impl Hand { pub fn new(card1: Card, card2: Card) -> Self { Self(card1, card2) } }` ### Example Usage `let hand = Hand::new(Card::new(14, 3), Card::new(13, 2)); // Ace of Spades and King of Hearts` ## Representing the Board The board consists of up to 5 community cards (flop, turn, river). We can represent it as a fixed-size array of Card instances. ### Board Representation `#[derive(Debug, Clone, PartialEq, Eq)] pub struct Board([Option; 5]); impl Board { pub fn new() -> Self { Self([None; 5]) } pub fn add_card(&mut self, card: Card) -> Result<(), &'static str> { for slot in self.0.iter_mut() { if slot.is_none() { *slot = Some(card); return Ok(()); } } Err("Board is full") } }` ### Example Usage `let mut board = Board::new(); board.add_card(Card::new(10, 0)).unwrap(); // 10 of Clubs board.add_card(Card::new(9, 1)).unwrap(); // 9 of Diamonds println!("{:?}", board);` ## Integrating with the Meerkat API The Meerkat API likely expects specific data structures for cards, hands, and the board. We can create conversion methods to map our efficient representations to the Meerkat API's format. ### Conversion Methods `impl Card { pub fn to_meerkat_format(&self) -> String { let rank = match self.rank() { 2..=10 => self.rank().to_string(), 11 => "J".to_string(), 12 => "Q".to_string(), 13 => "K".to_string(), 14 => "A".to_string(), _ => panic!("Invalid rank"), }; let suit = match self.suit() { 0 => "C", // Clubs 1 => "D", // Diamonds 2 => "H", // Hearts 3 => "S", // Spades _ => panic!("Invalid suit"), }; format!("{}{}", rank, suit) } } impl Hand { pub fn to_meerkat_format(&self) -> (String, String) { (self.0.to_meerkat_format(), self.1.to_meerkat_format()) } } impl Board { pub fn to_meerkat_format(&self) -> Vec { self.0.iter() .filter_map(|card| card.as_ref().map(|c| c.to_meerkat_format())) .collect() } }` ### Example Usage `let card = Card::new(14, 3); // Ace of Spades println!("Meerkat format: {}", card.to_meerkat_format()); // Output: "AS" let hand = Hand::new(Card::new(14, 3), Card::new(13, 2)); // Ace of Spades and King of Hearts println!("Meerkat format: {:?}", hand.to_meerkat_format()); // Output: ("AS", "KH") let mut board = Board::new(); board.add_card(Card::new(10, 0)).unwrap(); // 10 of Clubs board.add_card(Card::new(9, 1)).unwrap(); // 9 of Diamonds println!("Meerkat format: {:?}", board.to_meerkat_format()); // Output: ["10C", "9D"]` id: 3d18fd9000dc440292ed944022404dc8 parent_id: ac48627b91354a148d2fe76acb6703d1 created_time: 2025-02-13T05:31:04.401Z updated_time: 2025-02-13T05:58:39.815Z is_conflict: 0 latitude: 48.20817430 longitude: 16.37381890 altitude: 0.0000 author: source_url: is_todo: 0 todo_due: 0 todo_completed: 0 source: joplin-desktop source_application: net.cozic.joplin-desktop application_data: order: 0 user_created_time: 2025-02-13T05:31:04.401Z user_updated_time: 2025-02-13T05:58:39.815Z encryption_cipher_text: encryption_applied: 0 markup_language: 1 is_shared: 0 share_id: conflict_original_id: master_key_id: user_data: deleted_time: 0 type_: 1