package krkrkr

import "time"

func Today() int {
	return hashRounds(100, int(time.Now().Unix()/86400))
}

func hashRounds(rounds int, start int) int {
	for i := 0; i < rounds; i++ {
		start = hash(start)
	}
	return start
}

func hash(x int) int {
	for i := 0; i < 5; i++ {
		o := x
		o ^= 0xDADADADA
		o *= 0xBAADFACC
		o ^= 0xFEEDFACE
		o += 0xC0FFEE
		o = (o << 13) | (o >> (32 - 13))
		o *= o
		o ^= (o >> 17)
		o *= 0x5DEECE66D
		o ^= 0xB16B00B5
		x = o % 0x7FFFFFFF
	}
	return x & 0x7FFFFFFF
}