Merge pull request runelite#2271 from LeviSchuck/xp-negative

Fix negative total XP calculation when skill starts

runelite-client/src/main/java/net/runelite/client/plugins/xptracker/XpStateSingle.java

@@ -71,7 +71,11 @@ private int toHourly(int value)
 			return 0;
 		}
 
-		long timeElapsedInSeconds = Duration.between(skillTimeStart, Instant.now()).getSeconds();
+		// If the skill started just now, we can divide by near zero, this results in odd behavior.
+		// To prevent that, pretend the skill has been active for a minute (60 seconds)
+		// This will create a lower estimate for the first minute,
+		// but it isn't ridiculous like saying 2 billion XP per hour.
+		long timeElapsedInSeconds = Math.max(60, Duration.between(skillTimeStart, Instant.now()).getSeconds());
 		return (int) ((1.0 / (timeElapsedInSeconds / 3600.0)) * value);
 	}