Michael Bayne
965b44d253
used to easily plug in different methods of smoothly varying a value over time. git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3834 542714f4-19e9-0310-aa3c-eee0fc999fb1
43 lines
1.4 KiB
Java
43 lines
1.4 KiB
Java
//
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// $Id: LinearTimeFunction.java 3122 2004-09-18 22:57:08Z mdb $
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//
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// Narya library - tools for developing networked games
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// Copyright (C) 2002-2006 Three Rings Design, Inc., All Rights Reserved
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// http://www.threerings.net/code/narya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.jme.util;
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/**
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* Varies a value linearly with time.
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*/
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public class LinearTimeFunction extends TimeFunction
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{
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public LinearTimeFunction (float start, float end, float duration)
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{
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super(start, end, duration);
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_range = (end - start);
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}
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// documentation inherited
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protected float computeValue ()
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{
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return (_elapsed * _range / _duration) + _start;
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}
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protected float _range;
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}
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