54 lines
2.1 KiB
Java
54 lines
2.1 KiB
Java
/*
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* The MIT License
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* Copyright © 2014-2021 Ilkka Seppälä
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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package com.iluwatar.spatialpartition;
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import java.util.ArrayList;
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import java.util.HashMap;
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/**
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* This class extends the generic SpatialPartition abstract class and is used in our example to keep
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* track of all the bubbles that collide, pop and stay un-popped.
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*/
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public class SpatialPartitionBubbles extends SpatialPartitionGeneric<Bubble> {
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private final HashMap<Integer, Bubble> bubbles;
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private final QuadTree quadTree;
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SpatialPartitionBubbles(HashMap<Integer, Bubble> bubbles, QuadTree quadTree) {
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this.bubbles = bubbles;
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this.quadTree = quadTree;
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}
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void handleCollisionsUsingQt(Bubble b) {
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// finding points within area of a square drawn with centre same as
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// centre of bubble and length = radius of bubble
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var rect = new Rect(b.coordinateX, b.coordinateY, 2D * b.radius, 2D * b.radius);
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var quadTreeQueryResult = new ArrayList<Point>();
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this.quadTree.query(rect, quadTreeQueryResult);
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//handling these collisions
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b.handleCollision(quadTreeQueryResult, this.bubbles);
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}
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}
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