oboeru

Commit: d346825950cdd2e20c1c8efba1aeb9f0e59a3fb3
Parent: efd4e68e07774eaafb85ad29ac22a917f2dc2368
Author: Randy Palamar
Date:   Sun, 22 May 2022 08:30:17 -0600

oboeru: add a small random offset to new review time

specifically, once a card's review time is greater than LEECH_AGE an
offset of +1 day can be added randomly. this is used to prevent cards
added at the same time from always growing at exactly the same rate.

Diffstat:
M
LICENSE
 | 
2
+-
M
oboeru.c
 | 
5
++++-

2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 ISC License (ISC)
 
-© 2021 Randy Palamar <palamar@ualberta.ca>
+© 2021-2022 Randy Palamar <palamar@ualberta.ca>
 
 Permission to use, copy, modify, and distribute this software for any
 purpose with or without fee is hereby granted, provided that the above
diff --git a/oboeru.c b/oboeru.c
@@ -188,8 +188,11 @@ bump_card(Card *card, int8_t status)
 		if (diff < MINIMUM_INCREASE - 1) {
 			card->due = t + MINIMUM_INCREASE;
 			return 1;
+		} else if (diff > LEECH_AGE) {
+			card->due = t + diff * GROWTH_RATE + 24 * 3600 * (rand() % 2);
+		} else {
+			card->due = t + diff * GROWTH_RATE;
 		}
-		card->due = t + diff * GROWTH_RATE;
 		break;
 	case CARD_FAIL:
 		if (diff > LEECH_AGE && !card->nobump)