evalboards.js

// https://www.chessprogramming.org/Simplified_Evaluation_Function#Piece-Square_Tables
function generateEvalBoard(array) {
  const values = "0123456789abcdef"
  let string = "";
  
  for (const value of array.reverse())
  {
    var index = (value / 5) + 8;
    index = Math.min(index, values.length - 1);
    index = Math.max(index, 0);
    string += values[index]
  }
  
  var combinedStr = "";
  for (let i = 0; i < 4; i++)
  {
    combinedStr += `0x${string.substring(i * 16, (i + 1) * 16)}, `;
  }

  return `new ulong[] { ${combinedStr}},`;
}

// pawn
console.log(generateEvalBoard([ 
  50, 50, 50, 50, 50, 50, 50, 50,
  50, 50, 50, 50, 50, 50, 50, 50,
  10, 10, 20, 30, 30, 20, 10, 10,
   5,  5, 10, 25, 25, 10,  5,  5,
   0,  0,  0, 20, 20,  0,  0,  0,
   5, -5,-10,  0,  0,-10, -5,  5,
   5, 10, 10,-20,-20, 10, 10,  5,
   0,  0,  0,  0,  0,  0,  0,  0
]));

// knight
console.log(generateEvalBoard([ 
  -50,-40,-30,-30,-30,-30,-40,-50,
  -40,-20,  0,  0,  0,  0,-20,-40,
  -30,  0, 10, 15, 15, 10,  0,-30,
  -30,  5, 15, 20, 20, 15,  5,-30,
  -30,  0, 15, 20, 20, 15,  0,-30,
  -30,  5, 10, 15, 15, 10,  5,-30,
  -40,-20,  0,  5,  5,  0,-20,-40,
  -50,-40,-30,-30,-30,-30,-40,-50,
]));

// bishop
console.log(generateEvalBoard([ 
  -20,-10,-10,-10,-10,-10,-10,-20,
  -10,  0,  0,  0,  0,  0,  0,-10,
  -10,  0,  5, 10, 10,  5,  0,-10,
  -10,  5,  5, 10, 10,  5,  5,-10,
  -10,  0, 10, 10, 10, 10,  0,-10,
  -10, 10, 10, 10, 10, 10, 10,-10,
  -10,  5,  0,  0,  0,  0,  5,-10,
  -20,-10,-10,-10,-10,-10,-10,-20,
]));

// rook
console.log(generateEvalBoard([ 
  0,  0,  0,  0,  0,  0,  0,  0,
  5, 10, 10, 10, 10, 10, 10,  5,
 -5,  0,  0,  0,  0,  0,  0, -5,
 -5,  0,  0,  0,  0,  0,  0, -5,
 -5,  0,  0,  0,  0,  0,  0, -5,
 -5,  0,  0,  0,  0,  0,  0, -5,
 -5,  0,  0,  0,  0,  0,  0, -5,
  0,  0,  0,  5,  5,  0,  0,  0
]));

// queen
console.log(generateEvalBoard([ 
  -20,-10,-10, -5, -5,-10,-10,-20,
  -10,  0,  0,  0,  0,  0,  0,-10,
  -10,  0,  5,  5,  5,  5,  0,-10,
   -5,  0,  5,  5,  5,  5,  0, -5,
    0,  0,  5,  5,  5,  5,  0, -5,
  -10,  5,  5,  5,  5,  5,  0,-10,
  -10,  0,  5,  0,  0,  0,  0,-10,
  -20,-10,-10, -5, -5,-10,-10,-20
]));