Corrected hand evaluator based on Java implementation
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PROJECT_README.md
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PROJECT_README.md
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# Poker Hand Evaluation Project
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## Overview
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This project is a comprehensive Rust-based poker hand evaluation and bot development framework. Built around a high-performance poker hand evaluation library, it provides tools for poker bot development, game simulation, strategy analysis, and performance monitoring.
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## Architecture
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The project is organized into several key components:
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```
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poker-project/
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├── core/ # Core poker API and hand evaluation
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│ ├── src/api/ # Core data types and traits
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│ ├── src/hand_evaluator.rs # High-performance hand evaluation
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│ ├── src/evaluator_generator/ # Lookup table generation
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│ └── src/texas_holdem/ # Texas Hold'em game logic
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├── bots/ # Poker bot implementations
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├── simulator/ # Game simulation and testing tools
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├── tools/ # Analysis and monitoring utilities
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└── docs/ # Documentation and guides
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```
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## Core Components
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### 🃏 Core Library (`core/`)
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**High-Performance Poker Hand Evaluation**
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- **Perfect Hash Algorithm**: O(1) hand evaluation using precomputed tables
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- **Multi-Hand Support**: Evaluate 5, 6, or 7-card poker hands
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- **Memory Efficient**: ~128MB for complete evaluation tables
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- **Standards Compliant**: Based on proven poker evaluation algorithms
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**Key Features:**
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- Card and Hand management
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- Deck operations and shuffling
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- Player action representation
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- Game state information
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- Bot interface definitions
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- Configuration management
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### 🤖 Poker Bots (`bots/`)
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**AI Player Implementations**
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- Multiple bot strategies (random, tight, aggressive, adaptive)
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- Complete Player and GameObserver trait implementations
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- Configurable behavior and decision-making
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- Performance tracking and analysis
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### 🎲 Simulator (`simulator/`)
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**Game Simulation Framework**
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- Complete Texas Hold'em game simulation
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- Monte Carlo analysis for strategy testing
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- Range vs range analysis
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- Tournament and cash game simulation
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- Statistical analysis and reporting
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### 🔧 Tools (`tools/`)
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**Development and Analysis Utilities**
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- Log analysis and pattern detection
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- Real-time performance monitoring
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- Automated testing frameworks
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- Report generation and visualization
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## Performance Characteristics
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| Component | Performance | Memory Usage |
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|-----------|-------------|--------------|
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| Hand Evaluation | ~10-20ns per hand | ~128MB tables |
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| Bot Decision | < 10ms per action | ~10KB per bot |
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| Game Simulation | ~1ms per hand | ~1MB per simulation |
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| Log Analysis | ~100ms per 1000 hands | ~50MB for analysis |
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## Quick Start
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### Basic Hand Evaluation
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```rust
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use poker_api::hand_evaluator::LookupHandEvaluator;
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use poker_api::api::hand::Hand;
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use poker_api::api::card::Card;
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// Create evaluator (generates tables on first use)
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let evaluator = LookupHandEvaluator::new().unwrap();
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// Create a poker hand
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let mut hand = Hand::new();
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hand.add_card(Card::from_string("As").unwrap()).unwrap();
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hand.add_card(Card::from_string("Ks").unwrap()).unwrap();
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hand.add_card(Card::from_string("Qs").unwrap()).unwrap();
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hand.add_card(Card::from_string("Js").unwrap()).unwrap();
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hand.add_card(Card::from_string("Ts").unwrap()).unwrap();
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// Evaluate hand strength
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let rank = evaluator.rank_hand(&hand);
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println!("Hand rank: {}", rank); // Higher values = stronger hands
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```
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### Creating a Poker Bot
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```rust
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use poker_api::api::player::Player;
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use poker_api::api::preferences::Preferences;
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use poker_api::api::action::Action;
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struct MyBot {
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hole_cards: Option<(Card, Card)>,
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aggression: f64,
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}
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impl Player for MyBot {
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fn init(&mut self, prefs: Box<dyn Preferences>) {
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self.aggression = prefs.get_double("aggression", 0.5);
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}
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fn hole_cards(&mut self, c1: Card, c2: Card, _seat: usize) {
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self.hole_cards = Some((c1, c2));
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}
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fn get_action(&mut self) -> Action {
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if self.hole_cards.is_some() {
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// Make decision based on hole cards and aggression
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Action::check_action()
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} else {
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Action::fold_action(0.0)
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}
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}
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}
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```
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### Running Simulations
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```rust
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use poker_api::simulator::texas_holdem::TexasHoldemSimulation;
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// Create and configure simulation
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let mut simulation = TexasHoldemSimulation::new();
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simulation.set_player_range(0, "AA,KK,QQ".to_string());
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simulation.set_player_range(1, "22+,A2+".to_string());
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// Run simulation
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let results = simulation.run(10000);
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println!("Simulation results: {:?}", results);
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```
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## Algorithm Details
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### Perfect Hash Hand Evaluation
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The core algorithm uses a perfect hash function to map each possible card combination to a unique index in a precomputed ranking table:
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1. **Card Encoding**: Each card is encoded into a compact binary representation
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2. **Perfect Hash**: Cards are mapped to unique indices using mathematical functions
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3. **Table Lookup**: Precomputed ranking tables provide instant hand strength values
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4. **Best Hand Selection**: For 6-7 card hands, finds optimal 5-card combination
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### Table Generation Process
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The first time an evaluator is created, it generates evaluation tables (~1-2 seconds):
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- **612,978 combinations** processed for 5-card hands
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- **32+ million entries** in final lookup table
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- **Mathematical verification** ensures accuracy
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- **Binary serialization** for fast loading on subsequent runs
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## Development
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### Building the Project
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```bash
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# Clone the repository
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git clone <repository-url>
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cd poker-project
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# Build all components
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cargo build --release
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# Run tests
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cargo test
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# Generate documentation
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cargo doc --open
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```
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### Project Structure
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Each component is designed to work independently while integrating seamlessly:
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- **Core Library**: Standalone poker hand evaluation
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- **Bot Framework**: Pluggable AI player system
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- **Simulation Engine**: Controlled testing environment
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- **Analysis Tools**: Performance monitoring and strategy analysis
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### Contributing
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The project welcomes contributions in several areas:
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- **Bot Strategies**: New AI playing strategies
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- **Game Variants**: Additional poker game types
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- **Performance**: Optimizations and hardware acceleration
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- **Analysis Tools**: Enhanced monitoring and reporting
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- **Documentation**: Guides and tutorials
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## Use Cases
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### Poker Bot Development
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- Develop and test poker AI strategies
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- Analyze bot performance against known ranges
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- Optimize decision-making algorithms
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### Game Simulation
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- Test poker scenarios and edge cases
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- Analyze range vs range situations
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- Study game theory optimal strategies
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### Strategy Research
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- Research optimal bet sizing
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- Analyze position and stack size effects
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- Develop exploitative strategies
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### Performance Analysis
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- Monitor poker application performance
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- Identify bottlenecks and optimization opportunities
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- Load testing for production systems
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## License
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This project is licensed under the MIT License - see the LICENSE file for details.
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## Acknowledgments
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- **Meerkat API**: Original Java implementation by Ray Wotton
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- **Poker Standards**: 2+2 Poker hand ranking standards
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- **Rust Community**: Performance optimizations and best practices
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- **Contributors**: All contributors to the poker evaluation algorithms
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---
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**Note**: This project focuses on poker hand evaluation and bot development. It does not include real-money gambling functionality and is intended for educational and research purposes.
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