qmk_firmware/keyboards/lily58/keymaps/druotoni/fast_random.c
druotoni b3c0548ed3
[Keymap] Lily58 : HELL0 NAVI. Interface (#15469)
Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Joel Challis <git@zvecr.com>
2022-01-13 11:00:35 -08:00

17 lines
405 B
C

// Copyright 2021 Nicolas Druoton (druotoni)
// SPDX-License-Identifier: GPL-2.0-or-later
#include "fast_random.h"
// seed for random
static unsigned long g_seed = 0;
int fastrand(void) {
// todo : try with random16();
g_seed = (214013 * g_seed + 2531011);
return (g_seed >> 16) & 0x7FFF;
}
unsigned long fastrand_long(void) {
g_seed = (214013 * g_seed + 2531011);
return g_seed;
}