src/ch/epfl/xblast/ArgumentChecker.java


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package ch.epfl.xblast;

/**
 * ArgumentChecker.
 *
 * @author Pacien TRAN-GIRARD (261948)
 * @author Timothée FLOURE (257420)
 */
public final class ArgumentChecker {
    /**
     * Returns the given value if it is non-negative.
     *
     * @param value the tested value
     * @throws IllegalArgumentException if the value is inferior to 0
     * @return the given value if non-negative
     */
    public static int requireNonNegative(int value) {
        if (value >= 0) {
            return value;
        } else {
            throw new IllegalArgumentException();
        }
    }
}