hashing function, but made to work in Scratch.

hash.js

// wuilly
// 11/6/2023

function hash(str, salt) {
	// TODO: make this hashing function more collision-resistant
	if (salt != null) {
		str = `${salt}${str}`
	}

	if (str == null || str == "") {
		return ""
	}

	const soup = " `-=[]\\;\',./!@#$%^&*()_+{}|:\"<>?abcdefghjkmnopqrstuvwxyzABCDEFGHJKMNOPQRSTUVWXYZ0123456789"
	const soup_len = soup.length
	const r = 1234 // Math.floor((3.141592653589793 + 32) ** 2)
	let hash = []

	for (const a of str) {
		let result = null
		for (const b of str) {
			const len = hash.length

			// all of the string comparisons are the real magic behind this hashing function :3
			result = (2 - (a > b) + 0) % 2
			for (const c of soup) {
				if (a != b) {
					result += (b > c < a)
				} else {
					result += (c < a)
				}
			}

			const val = hash[len-1]
			if (len > 0) {
				hash[len-1] = ((r * val) + (0-(val % 2)*result)) % soup_len

				if (!result && len > 1) {
					const tmp = hash[len-2]
					hash[len-1] = tmp
					hash[len-2] = (val + r % len) % soup_len
				}
			}
		}

		if (result != null) {
			hash.push(result)
		} else {
			hash.push((hash.length + r) % soup_len)
		}
	}

	return hash.map(idx => soup[idx]).join("")
}

const salt = "SALTSALTSALT"
hash("@!", salt)
hash("@2", salt)
hash("@3", salt)
hash("asdfb", salt)
hash("asdfgb", salt)
hash("asdfg", salt)

hash("chicken butt")
hash("chicken butt", salt)

hash("The quick brown fox jumps over the lazy dog.", salt)
hash("The quick brown fox jumps over the lazy dog!", salt)