1 /******************************************************************************* 2 * Copyright (c) 2013, Daniel Murphy 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * * Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright notice, 10 * this list of conditions and the following disclaimer in the documentation 11 * and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 17 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 19 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 20 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 21 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 22 * POSSIBILITY OF SUCH DAMAGE. 23 ******************************************************************************/ 24 package org.jbox2d.pooling.arrays; 25 26 import java.util.HashMap; 27 28 import org.jbox2d.common.Vec2; 29 30 /** 31 * not thread safe Vec2[] pool 32 * @author dmurph 33 * 34 */ 35 public class Vec2Array { 36 37 private final HashMap<Integer, Vec2[]> map = new HashMap<Integer, Vec2[]>(); 38 39 public Vec2[] get( int argLength){ 40 assert(argLength > 0); 41 42 if(!map.containsKey(argLength)){ 43 map.put(argLength, getInitializedArray(argLength)); 44 } 45 46 assert(map.get(argLength).length == argLength) : "Array not built of correct length"; 47 return map.get(argLength); 48 } 49 50 protected Vec2[] getInitializedArray(int argLength){ 51 final Vec2[] ray = new Vec2[argLength]; 52 for (int i = 0; i < ray.length; i++) { 53 ray[i] = new Vec2(); 54 } 55 return ray; 56 } 57 } 58
