/*
* Copyright 2010 Google Inc.
*
* 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.
*/
package com.rubika.aotalk.util;
/**
* Math utility functions.
*/
public final class MathUtils {
/**
* Equivalent to Math.max(low, Math.min(high, amount));
*/
public static float constrain(final float amount, final float low, final float high) {
return amount < low ? low : amount > high ? high : amount;
}
/**
* Equivalent to Math.max(low, Math.min(high, amount));
*/
public static int constrain(final int amount, final int low, final int high) {
return amount < low ? low : amount > high ? high : amount;
}
private MathUtils() {
}
public static boolean stringToBool(String s) {
if (s.equals("1"))
return true;
if (s.equals("0"))
return false;
throw new IllegalArgumentException(s + " is not a bool. Only 1 and 0 are.");
}
public static final byte[] intToByteArray(int value) {
return new byte[] {
(byte)(value >>> 24),
(byte)(value >>> 16),
(byte)(value >>> 8),
(byte)value};
}
public static final int byteArrayToInt(byte [] b) {
return (b[0] << 24)
+ ((b[1] & 0xFF) << 16)
+ ((b[2] & 0xFF) << 8)
+ (b[3] & 0xFF);
}
}