Matrix Homework

matrix.js

function drawMatrix(size, defaultValue) {
  return Array(size).fill(defaultValue).map(()=>Array(size).fill(defaultValue));
};

function fillRectangle(x, y, width, height, matrix) {
  for (let i = x; i < x + width; i++) {
    for (let j = y; j < y + height; j++) {
      matrix[i][j] = 1;
    };
  };
  
  return matrix;
};

function drawRectangle(x, y, width, height, matrix) {
  matrix = drawHLine(x, y, width, matrix);
  matrix = drawVLine(x, y, width, matrix);
  matrix = drawHLine(x + height - 1, y, width, matrix);
  matrix = drawVLine(x, y + height - 1, width, matrix);

  return matrix;
};

function drawVLine(x, y, width, matrix) {
  return fillRectangle(x, y, width, 1, matrix);
};

function drawHLine(x, y, height, matrix) {
  return fillRectangle(x, y, 1, height, matrix);
};

function clearScreen(matrix) {
  return drawMatrix(matrix.length, 0);
};

function printScreen(matrix) {
  console.log(" " + "-".repeat(matrix.length));
  
  for (let i = 0; i < matrix.length; i++) {    
    console.log("|" + matrix[i].map((el) => el == 0 ? " " : "*").join('') + "|");
  };

  console.log(" " + "-".repeat(matrix.length));
  return matrix;
};

function main() {
  let screen = drawMatrix(10, 0);
  printScreen(screen);
  
  screen = drawRectangle(2, 1, 3, 3, screen);
  printScreen(screen);

  screen = fillRectangle(2, 6, 3, 3, screen);
  printScreen(screen);

  screen = drawHLine(7, 1, 3, screen);
  printScreen(screen);

  screen = drawVLine(6, 7, 3, screen);
  printScreen(screen);
};

main();