import Sprite from "../Sprite.js";
/**
* print diamond
*/
const printDiamond = (rows=10) => {
const columns = 40;
let pattern = "//\\\\"
let ret = '';
let index = 0;
// iterate through columns and rows
for (let i = 0; i < rows; i++) {
for (let j = 0; j < columns; j++) {
// take current index of pattern string mod pattern string length and to return string
ret += pattern[index % pattern.length];
index++;
}
ret += '<br/>';
// if at halfway point, change pattern to three slashes and decrease index by one
if (i >= Math.floor(rows / 2) - 1) {
pattern = "///\\\\\\";
index--;
}
// else, increase index by 2
else {
index += 2;
}
}
return ret
}
export default class DiamondPattern extends Sprite {
constructor(rows = 10) {
super(printDiamond(rows));
}
}