javafx/javafx2.samples/BrickBreaker/src/brickbreaker/Utils.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
package brickbreaker;

public class Utils {

    private static final java.util.Random RANDOM = new java.util.Random();

    // Returns random integer number from 0 to max - 1
    public static int random(int max) {
        return (int) (RANDOM.nextDouble() * max);
    }

    // Returns sign of the value
    public static int sign(double n) {
        if (n == 0) {
            return 0;
        }
        if (n > 0) {
            return 1;
        } else {
            return -1;
        }
    }

}