Refactor packages

src/main/java/wtf/beatrice/hidekobot/util/RandomUtil.java

@@ -0,0 +1,37 @@
+package wtf.beatrice.hidekobot.util;
+
+import java.util.Random;
+
+public class RandomUtil
+{
+    private static final Random random = new Random();
+
+
+    /**
+     * Returns a random integer picked in a range.
+     *
+     * @param min the minimum value (inclusive)
+     * @param max the maximum value (inclusive)
+     * @return a random number in range [min; max]
+     */
+    public static int getRandomNumber(int min, int max)
+    {
+        if(min == max) return min; // dumbass
+        if(min > max) // swap em
+        {
+            min = min - max;
+            max = min + max;
+            min = max - min;
+        }
+
+
+        // find our range of randomness (eg. 5 -> 8 = 4), add +1 since we want to be inclusive at both sides
+        int difference = (max - min) + 1;
+
+        // find a number between 0 and our range (eg. 5 -> 8 = 0 -> 3)
+        int randomTemp = random.nextInt(difference);
+
+        // add the minimum value, so we are sure to be in the original range (0->5, 1->6, 2->7, 3->8)
+        return randomTemp + min;
+    }
+}