/* * The MIT License * Copyright © 2014-2021 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; /** * The Rect class helps in defining the boundary of the quadtree and is also used to define the * range within which objects need to be found in our example. */ public class Rect { double coordinateX; double coordinateY; double width; double height; //(x,y) - centre of rectangle Rect(double x, double y, double width, double height) { this.coordinateX = x; this.coordinateY = y; this.width = width; this.height = height; } boolean contains(Point p) { return p.coordinateX >= this.coordinateX - this.width / 2 && p.coordinateX <= this.coordinateX + this.width / 2 && p.coordinateY >= this.coordinateY - this.height / 2 && p.coordinateY <= this.coordinateY + this.height / 2; } boolean intersects(Rect other) { return !(this.coordinateX + this.width / 2 <= other.coordinateX - other.width / 2 || this.coordinateX - this.width / 2 >= other.coordinateX + other.width / 2 || this.coordinateY + this.height / 2 <= other.coordinateY - other.height / 2 || this.coordinateY - this.height / 2 >= other.coordinateY + other.height / 2); } }