multistatsample.java

来自「java 3d game jme 工程开发源代码」· Java 代码 · 共 65 行

/*
 * Copyright (c) 2003-2009 jMonkeyEngine
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 *
 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 
 *   may be used to endorse or promote products derived from this software 
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.jme.util.stat;

import java.util.HashMap;

/**
 * @author Joshua Slack
 */
public class MultiStatSample {
    public HashMap<StatType, StatValue> values = new HashMap<StatType, StatValue>();
    public double actualTime = 0.0;

    public static MultiStatSample createNew(HashMap<StatType, StatValue> current) {
        MultiStatSample rVal = new MultiStatSample();
        double frames = current.containsKey(StatType.STAT_FRAMES) ? current.get(StatType.STAT_FRAMES).val : 0;
        for (StatType type : current.keySet()) {
            StatValue entry = current.get(type);
        	// only count values we've seen at
			// least 1 time from this sample set.
            if (entry.iterations != 0) {
                StatValue store = new StatValue(entry.val, entry.iterations);
				if (frames > 0) {
					store.average = store.val / frames;
				} else {
					store.average = store.val / store.iterations;
				}
				rVal.values.put(type, store);
			}
		}
		return rVal;
    }

}