1 /**
2 * Copyright 2006 Matthew Purland (m.purland@gmail.com)
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package net.sf.mud4j.util;
17
18 import java.util.Random;
19
20 /**
21 * Dice utility/helper for representing rolls of dice and probability.
22 *
23 * @author Matthew Purland
24 */
25 public final class DiceHelper {
26 private Random random;
27
28 private DiceHelper() { }
29
30 /**
31 * TODO this is not thread safe
32 * @return
33 */
34 private Random getRandom() {
35 if (random == null) {
36 random = new Random();
37 return random;
38 }
39 else {
40 return random;
41 }
42 }
43 }