exercicio

index.js

const SQUARE_WIDTH = 9;
const HEIGHT = 9;
const SPACING = 5;
const DRAW_CHAR = "*";

function drawSquare(line) {
  let square = "";
  for (let row = 0; row < SQUARE_WIDTH; row++) {
    if (line === 0 || line === HEIGHT - 1) {
      square += DRAW_CHAR;
    } else {
      if (row === 0 || row === SQUARE_WIDTH - 1) {
        square += DRAW_CHAR;
      } else {
        square += " ";
      }
    }
  }

  return square;
}

function drawOval(line) {
  const CIRCLE_WIDTH = 10;
  let oval = "";
  const spaces =
    line === 0 || line === HEIGHT - 1
      ? 3
      : line === 1 || line === HEIGHT - 2
      ? 1
      : 0;
  for (let row = 0; row < CIRCLE_WIDTH; row++) {
    if (
      row === spaces ||
      row === CIRCLE_WIDTH - spaces - 1 ||
      ((line === 0 || line === HEIGHT - 1) &&
        row > spaces &&
        row < CIRCLE_WIDTH - spaces - 1)
    ) {
      oval += DRAW_CHAR;
    } else {
      oval += " ";
    }
  }
  return oval;
}

function drawArrow(line) {
  const ARROW_WIDTH = 5;
  const spaces = line < 3 ? 2 - line : 2;
  let arrow = "";
  for (let row = 0; row < ARROW_WIDTH; row++) {
    if (row < spaces || row >= ARROW_WIDTH - spaces) {
      arrow += " ";
    } else {
      arrow += DRAW_CHAR;
    }
  }
  return arrow;
}

function drawDiamond(line) {
  let diamond = "";
  const half = Math.floor(SQUARE_WIDTH / 2);
  const spaces = line < half ? half - line : half - (SQUARE_WIDTH - line - 1);

  for (let row = 0; row < SQUARE_WIDTH; row++) {
    if (row < spaces || row >= SQUARE_WIDTH - spaces) {
      diamond += " ";
    } else {
      if (row === spaces || row === SQUARE_WIDTH - spaces - 1) {
        diamond += DRAW_CHAR;
      } else {
        diamond += " ";
      }
    }
  }
  return diamond;
}

function printBoard() {
  for (let i = 0; i < HEIGHT; i++) {
    let row = "";
    row += drawSquare(i);
    row += " ".repeat(SPACING);
    row += drawOval(i);
    row += " ".repeat(SPACING);
    row += drawArrow(i);
    row += " ".repeat(SPACING);
    row += drawDiamond(i);
    console.log(row);
  }
}

printBoard();