| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| package proguard.gui.splash; |
| |
| /** |
| * This Timing varies between 0 and 1, as a sine wave over time. |
| * |
| * @author Eric Lafortune |
| */ |
| public class SineTiming implements Timing |
| { |
| private final long period; |
| private final long phase; |
| |
| |
| /** |
| * Creates a new SineTiming. |
| * @param period the time period for a full cycle. |
| * @param phase the phase of the cycle, which is added to the actual time. |
| */ |
| public SineTiming(long period, long phase) |
| { |
| this.period = period; |
| this.phase = phase; |
| } |
| |
| |
| // Implementation for Timing. |
| |
| public double getTiming(long time) |
| { |
| // Compute the translated and scaled sine function. |
| return 0.5 + 0.5 * Math.sin(2.0 * Math.PI * (time + phase) / period); |
| } |
| } |