From c43a10501ccd1408b7c940dae30d464ac5e5e311 Mon Sep 17 00:00:00 2001
From: Alex Jordan <alex.jordan@pcc.edu>
Date: Fri, 22 Nov 2024 16:48:39 -0800
Subject: [PATCH] ensure seed does not overflow

---
 lib/WeBWorK/AchievementItems/ExtendDueDate.pm      | 2 +-
 lib/WeBWorK/AchievementItems/ReducedCred.pm        | 2 +-
 lib/WeBWorK/AchievementItems/SuperExtendDueDate.pm | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/WeBWorK/AchievementItems/ExtendDueDate.pm b/lib/WeBWorK/AchievementItems/ExtendDueDate.pm
index b22326996d..e68e975511 100644
--- a/lib/WeBWorK/AchievementItems/ExtendDueDate.pm
+++ b/lib/WeBWorK/AchievementItems/ExtendDueDate.pm
@@ -79,7 +79,7 @@ sub use_item ($self, $userName, $c) {
 		my @probIDs = $db->listUserProblems($userName, $setID);
 		for my $probID (@probIDs) {
 			my $problem = $db->getUserProblem($userName, $setID, $probID);
-			$problem->problem_seed($problem->problem_seed + 100);
+			$problem->problem_seed($problem->problem_seed % 2**31 + 1);
 			$db->putUserProblem($problem);
 		}
 	}
diff --git a/lib/WeBWorK/AchievementItems/ReducedCred.pm b/lib/WeBWorK/AchievementItems/ReducedCred.pm
index f624231627..3e5f6a8e06 100644
--- a/lib/WeBWorK/AchievementItems/ReducedCred.pm
+++ b/lib/WeBWorK/AchievementItems/ReducedCred.pm
@@ -87,7 +87,7 @@ sub use_item ($self, $userName, $c) {
 		my @probIDs = $db->listUserProblems($userName, $setID);
 		for my $probID (@probIDs) {
 			my $problem = $db->getUserProblem($userName, $setID, $probID);
-			$problem->problem_seed($problem->problem_seed + 100);
+			$problem->problem_seed($problem->problem_seed % 2**31 + 1);
 			$db->putUserProblem($problem);
 		}
 	}
diff --git a/lib/WeBWorK/AchievementItems/SuperExtendDueDate.pm b/lib/WeBWorK/AchievementItems/SuperExtendDueDate.pm
index 02fc2bed82..0caca25ebb 100644
--- a/lib/WeBWorK/AchievementItems/SuperExtendDueDate.pm
+++ b/lib/WeBWorK/AchievementItems/SuperExtendDueDate.pm
@@ -79,7 +79,7 @@ sub use_item ($self, $userName, $c) {
 		my @probIDs = $db->listUserProblems($userName, $setID);
 		for my $probID (@probIDs) {
 			my $problem = $db->getUserProblem($userName, $setID, $probID);
-			$problem->problem_seed($problem->problem_seed + 100);
+			$problem->problem_seed($problem->problem_seed % 2**31 + 1);
 			$db->putUserProblem($problem);
 		}
 	}