Types.h

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#pragma once

 
#include "chess.hpp"
 
// Type aliases for cleaner code
using Board = chess::Board;         
using Move = chess::Move;           
using Movelist = chess::Movelist;   
using Color = chess::Color;         
using Square = chess::Square;       
using Piece = chess::Piece;         
using PieceType = chess::PieceType; 
using Bitboard = chess::Bitboard;   
using File = chess::File;           
using Rank = chess::Rank;           

namespace SearchConstants {
constexpr int INFINITE = 32000;                      
constexpr int MATE_SCORE = 31500;                    
constexpr int MATE_IN_MAX = MATE_SCORE - 300;        
constexpr int TB_WIN_SCORE = 31000;                  
constexpr int TB_WIN_IN_MAX = TB_WIN_SCORE - 800;    
constexpr int DRAW_SCORE = 0;                        
constexpr int CONTEMPT_FACTOR = 5;                   
 
// TT Flags
constexpr uint8_t TT_EXACT = 0; 
constexpr uint8_t TT_ALPHA = 1; 
constexpr uint8_t TT_BETA = 2;  
 
// Search defaults
constexpr int DEFAULT_DEPTH = 100;       
constexpr int MAX_PLY = 128;             
constexpr int LMR_MIN_DEPTH = 3;         
constexpr int NULL_MOVE_MIN_DEPTH = 4;   
 
// Extension limits
constexpr int MAX_EXTENSIONS = 8;        
 
// Sentinel for invalid static eval
constexpr int16_t INVALID_EVAL = 32001;  
} // namespace SearchConstants

namespace MoveOrderConstants {
constexpr int16_t HASH_MOVE_SCORE = 30000; 
constexpr int16_t CAPTURE_BASE = 10000;    
constexpr int16_t KILLER_SCORE_1 = 9000;   
constexpr int16_t KILLER_SCORE_2 = 8000;   
constexpr int16_t HISTORY_MAX = 8000;      
} // namespace MoveOrderConstants

namespace MoveGen {

inline void generateLegalMoves(Movelist &moves, const Board &board) {
  chess::movegen::legalmoves(moves, board);
}

inline void generateCaptures(Movelist &moves, const Board &board) {
  chess::movegen::legalmoves<chess::movegen::MoveGenType::CAPTURE>(moves, board);
}
} // namespace MoveGen