const fs = require("fs"); const path = require("path"); const spritesheet = require("spritesheet-js"); const INPUT = path.join(__dirname, "../blocks/"); const OUTPUT = path.join(__dirname, "../output/"); if (!fs.existsSync(OUTPUT)) fs.mkdirSync(OUTPUT); spritesheet(path.join(INPUT, "*.png"), { format: "pixi.js", path: OUTPUT }, function (err) { if (err) throw err; console.log("Done!"); });