chaos scroll fix

The intention of the rand method is to return a pseudorandom uniformly distributed int between lbound and ubound (both inclusive). The previous implementation did not work as intended when the lower bound was negative since java round up instead of down when casting a negative double to an int. Adding the lower bound after the cast rather than before fixes this.

Also changed the CHSCROLL_STAT_RANGE from 6 to 5 to be consistent with gms.

config.yaml

@@ -345,7 +345,7 @@ server:
     USE_ENHANCED_CRAFTING: false     #Apply chaos scroll on every equip crafted.
     SCROLL_CHANCE_ROLLS: 1         #Number of rolls for success on a scroll, set 1 for default.
     CHSCROLL_STAT_RATE: 1               #Number of rolls of stat upgrade on a successfully applied chaos scroll, set 1 for default.
-    CHSCROLL_STAT_RANGE: 6              #Stat upgrade range (-N, N) on chaos scrolls.
+    CHSCROLL_STAT_RANGE: 5              #Stat upgrade range (-N, N) on chaos scrolls.
 
     #Beginner Skills Configuration
     USE_ULTRA_NIMBLE_FEET: false     #Massive speed & jump upgrade.

src/main/java/tools/Randomizer.java

@@ -35,6 +35,6 @@ public class Randomizer {
     }
 
     public static int rand(final int lbound, final int ubound) {
-        return (int) ((rand.nextDouble() * (ubound - lbound + 1)) + lbound);
+        return ((int) (rand.nextDouble() * (ubound - lbound + 1))) + lbound;
     }
 }