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diff --git a/jeu-test/Lemmini/0.84/src/Game/GroupBitfield.java b/jeu-test/Lemmini/0.84/src/Game/GroupBitfield.java
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+++ b/jeu-test/Lemmini/0.84/src/Game/GroupBitfield.java
@@ -0,0 +1,47 @@
+package Game;
+
+import java.math.BigInteger;
+
+/*
+ * Copyright 2009 Volker Oth
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Wrapper class which uses BigInteger to implement a large bitfield
+ * in which single bits can be set via testBit and setBit.
+ */
+public class GroupBitfield extends BigInteger {
+
+ /** define "1" to avoid multiple instances */
+ final static GroupBitfield ONE = new GroupBitfield("1");
+
+ private final static long serialVersionUID = 1;
+
+ /**
+ * Constructor with numerical value as string
+ * @param s numerical value as string
+ */
+ public GroupBitfield(final String s) {
+ super(s);
+ }
+
+ /**
+ * Constructor with numerical value as BigInteger
+ * @param i numerical value as BigInteger
+ */
+ public GroupBitfield(final BigInteger i) {
+ super(i.toString());
+ }
+}