/* * The MIT License * Copyright © 2014-2019 Ilkka Seppälä * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.iluwatar.spatialpartition; import java.util.ArrayList; import java.util.HashMap; /** * This class extends the generic SpatialPartition abstract class and is used in our example to keep * track of all the bubbles that collide, pop and stay un-popped. */ public class SpatialPartitionBubbles extends SpatialPartitionGeneric { private final HashMap bubbles; private final QuadTree quadTree; SpatialPartitionBubbles(HashMap bubbles, QuadTree quadTree) { this.bubbles = bubbles; this.quadTree = quadTree; } void handleCollisionsUsingQt(Bubble b) { // finding points within area of a square drawn with centre same as // centre of bubble and length = radius of bubble var rect = new Rect(b.coordinateX, b.coordinateY, 2D * b.radius, 2D * b.radius); var quadTreeQueryResult = new ArrayList(); this.quadTree.query(rect, quadTreeQueryResult); //handling these collisions b.handleCollision(quadTreeQueryResult, this.bubbles); } }