mirror of
https://github.com/plexusorg/Plex-FAWE.git
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640 lines
13 KiB
Java
640 lines
13 KiB
Java
// $Id$
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/*
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* WorldEdit
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* Copyright (C) 2010 sk89q <http://www.sk89q.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit;
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/**
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*
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* @author sk89q
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*/
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public class Vector {
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protected final double x, y, z;
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/**
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* Construct the Vector object.
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*
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* @param x
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* @param y
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* @param z
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*/
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public Vector(double x, double y, double z) {
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this.x = x;
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this.y = y;
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this.z = z;
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}
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/**
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* Construct the Vector object.
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*
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* @param x
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* @param y
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* @param z
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*/
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public Vector(int x, int y, int z) {
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this.x = (double)x;
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this.y = (double)y;
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this.z = (double)z;
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}
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/**
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* Construct the Vector object.
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*
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* @param x
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* @param y
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* @param z
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*/
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public Vector(float x, float y, float z) {
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this.x = (double)x;
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this.y = (double)y;
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this.z = (double)z;
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}
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/**
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* Construct the Vector object.
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*
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* @param pt
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*/
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public Vector(Vector pt) {
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this.x = pt.x;
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this.y = pt.y;
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this.z = pt.z;
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}
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/**
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* Construct the Vector object.
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*/
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public Vector() {
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this.x = 0;
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this.y = 0;
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this.z = 0;
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}
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/**
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* @return the x
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*/
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public double getX() {
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return x;
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}
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/**
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* @return the x
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*/
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public int getBlockX() {
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return (int)Math.round(x);
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}
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/**
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* Set X.
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*
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* @param x
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* @return new vector
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*/
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public Vector setX(double x) {
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return new Vector(x, y, z);
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}
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/**
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* Set X.
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*
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* @param x
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* @return new vector
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*/
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public Vector setX(int x) {
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return new Vector(x, y, z);
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}
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/**
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* @return the y
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*/
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public double getY() {
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return y;
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}
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/**
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* @return the y
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*/
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public int getBlockY() {
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return (int)Math.round(y);
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}
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/**
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* Set Y.
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*
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* @param y
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* @return new vector
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*/
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public Vector setY(double y) {
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return new Vector(x, y, z);
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}
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/**
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* Set Y.
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*
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* @param y
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* @return new vector
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*/
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public Vector setY(int y) {
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return new Vector(x, y, z);
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}
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/**
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* @return the z
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*/
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public double getZ() {
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return z;
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}
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/**
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* @return the z
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*/
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public int getBlockZ() {
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return (int)Math.round(z);
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}
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/**
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* Set Z.
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*
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* @param z
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* @return new vector
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*/
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public Vector setZ(double z) {
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return new Vector(x, y, z);
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}
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/**
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* Set Z.
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*
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* @param z
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* @return new vector
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*/
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public Vector setZ(int z) {
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return new Vector(x, y, z);
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}
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/**
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* Adds two points.
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*
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* @param other
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* @return New point
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*/
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public Vector add(Vector other) {
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return new Vector(x + other.x, y + other.y, z + other.z);
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}
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/**
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* Adds two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector add(double x, double y, double z) {
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return new Vector(this.x + x, this.y + y, this.z + z);
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}
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/**
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* Adds two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector add(int x, int y, int z) {
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return new Vector(this.x + x, this.y + y, this.z + z);
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}
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/**
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* Adds points.
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*
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* @param others
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* @return New point
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*/
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public Vector add(Vector ... others) {
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double newX = x, newY = y, newZ = z;
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for (int i = 0; i < others.length; i++) {
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newX += others[i].x;
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newY += others[i].y;
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newZ += others[i].z;
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}
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return new Vector(newX, newY, newZ);
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}
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/**
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* Subtracts two points.
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*
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* @param other
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* @return New point
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*/
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public Vector subtract(Vector other) {
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return new Vector(x - other.x, y - other.y, z - other.z);
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}
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/**
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* Subtract two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector subtract(double x, double y, double z) {
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return new Vector(this.x - x, this.y - y, this.z - z);
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}
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/**
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* Subtract two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector subtract(int x, int y, int z) {
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return new Vector(this.x - x, this.y - y, this.z - z);
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}
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/**
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* Subtract points.
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*
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* @param others
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* @return New point
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*/
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public Vector subtract(Vector ... others) {
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double newX = x, newY = y, newZ = z;
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for (int i = 0; i < others.length; i++) {
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newX -= others[i].x;
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newY -= others[i].y;
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newZ -= others[i].z;
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}
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return new Vector(newX, newY, newZ);
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}
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/**
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* Multiplies two points.
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*
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* @param other
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* @return New point
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*/
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public Vector multiply(Vector other) {
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return new Vector(x * other.x, y * other.y, z * other.z);
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}
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/**
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* Multiply two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector multiply(double x, double y, double z) {
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return new Vector(this.x * x, this.y * y, this.z * z);
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}
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/**
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* Multiply two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector multiply(int x, int y, int z) {
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return new Vector(this.x * x, this.y * y, this.z * z);
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}
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/**
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* Multiply points.
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*
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* @param others
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* @return New point
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*/
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public Vector multiply(Vector ... others) {
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double newX = x, newY = y, newZ = z;
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for (int i = 0; i < others.length; i++) {
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newX *= others[i].x;
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newY *= others[i].y;
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newZ *= others[i].z;
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}
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return new Vector(newX, newY, newZ);
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}
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/**
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* Scalar multiplication.
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*
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* @param n
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* @return New point
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*/
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public Vector multiply(double n) {
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return new Vector(this.x * n, this.y * n, this.z * n);
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}
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/**
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* Scalar multiplication.
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*
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* @param n
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* @return New point
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*/
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public Vector multiply(float n) {
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return new Vector(this.x * n, this.y * n, this.z * n);
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}
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/**
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* Scalar multiplication.
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*
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* @param n
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* @return New point
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*/
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public Vector multiply(int n) {
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return new Vector(this.x * n, this.y * n, this.z * n);
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}
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/**
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* Divide two points.
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*
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* @param other
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* @return New point
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*/
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public Vector divide(Vector other) {
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return new Vector(x / other.x, y / other.y, z / other.z);
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}
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/**
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* Divide two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector divide(double x, double y, double z) {
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return new Vector(this.x / x, this.y / y, this.z / z);
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}
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/**
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* Divide two points.
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*
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* @param x
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* @param y
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* @param z
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* @return New point
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*/
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public Vector divide(int x, int y, int z) {
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return new Vector(this.x / x, this.y / y, this.z / z);
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}
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/**
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* Scalar division.
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*
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* @param n
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* @return new point
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*/
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public Vector divide(int n) {
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return new Vector(x / n, y / n, z / n);
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}
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/**
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* Scalar division.
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*
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* @param n
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* @return new point
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*/
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public Vector divide(double n) {
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return new Vector(x / n, y / n, z / n);
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}
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/**
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* Scalar division.
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*
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* @param n
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* @return new point
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*/
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public Vector divide(float n) {
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return new Vector(x / n, y / n, z / n);
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}
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/**
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* Get the length of the vector.
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*
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* @return distance
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*/
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public double length() {
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return Math.sqrt(Math.pow(x, 2) +
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Math.pow(y, 2) +
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Math.pow(z, 2));
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}
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/**
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* Get the distance away from a point.
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*
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* @param pt
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* @return distance
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*/
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public double distance(Vector pt) {
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return Math.sqrt(Math.pow(pt.x - x, 2) +
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Math.pow(pt.y - y, 2) +
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Math.pow(pt.z - z, 2));
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}
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/**
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* Get the distance away from a point, squared.
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*
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* @param pt
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* @return distance
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*/
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public double distanceSq(Vector pt) {
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return Math.pow(pt.x - x, 2) +
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Math.pow(pt.y - y, 2) +
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Math.pow(pt.z - z, 2);
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}
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/**
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* Get the normalized vector.
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*
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* @return vector
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*/
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public Vector normalize() {
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return divide(length());
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}
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/**
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* Checks to see if a vector is contained with another.
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*
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* @param min
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* @param max
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* @return
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*/
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public boolean containedWithin(Vector min, Vector max) {
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return x >= min.getX() && x <= max.getX()
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&& y >= min.getY() && y <= max.getY()
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&& z >= min.getZ() && z <= max.getZ();
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}
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/**
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* Checks to see if a vector is contained with another.
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*
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* @param min
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* @param max
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* @return
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*/
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public boolean containedWithinBlock(Vector min, Vector max) {
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return getBlockX() >= min.getBlockX() && getBlockX() <= max.getBlockX()
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&& getBlockY() >= min.getBlockY() && getBlockY() <= max.getBlockY()
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&& getBlockZ() >= min.getBlockZ() && getBlockZ() <= max.getBlockY();
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}
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/**
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* Clamp the Y component.
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*
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* @param min
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* @param max
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* @return
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*/
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public Vector clampY(int min, int max) {
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return new Vector(x, Math.max(min, Math.min(max, y)), z);
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}
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/**
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* 2D transformation.
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*
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* @param angle in degrees
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* @param aboutX
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* @param aboutZ
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* @param translateX
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* @param translateZ
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* @return
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*/
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public Vector transform2D(double angle,
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double aboutX, double aboutZ, double translateX, double translateZ) {
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angle = Math.toRadians(angle);
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double x = this.x;
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double z = this.z;
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double x2 = x * Math.cos(angle) - z * Math.sin(angle);
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double z2 = x * Math.sin(angle) + z * Math.cos(angle);
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return new Vector(x2 + aboutX + translateX,
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y,
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z2 + aboutZ + translateZ);
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}
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/**
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* Get a block point from a point.
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*
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* @param x
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* @param y
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* @param z
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* @return point
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*/
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public static Vector toBlockPoint(double x, double y, double z) {
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return new Vector((int)Math.floor(x),
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(int)Math.floor(y),
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(int)Math.floor(z));
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}
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/**
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* Get a block point from a point.
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*
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* @return point
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*/
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public BlockVector toBlockPoint() {
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return new BlockVector((int)Math.floor(x),
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(int)Math.floor(y),
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(int)Math.floor(z));
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}
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/**
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* Checks if another object is equivalent.
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*
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* @param obj
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* @return whether the other object is equivalent
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*/
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@Override
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public boolean equals(Object obj) {
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if (!(obj instanceof Vector)) {
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return false;
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}
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Vector other = (Vector)obj;
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return other.getX() == this.x && other.getY() == this.y && other.getZ() == this.z;
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}
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/**
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* Gets the hash code.
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*
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* @return hash code
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*/
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@Override
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public int hashCode() {
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return ((new Double(x)).hashCode() >> 13) ^
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((new Double(y)).hashCode() >> 7) ^
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(new Double(z)).hashCode();
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}
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/**
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* Returns string representation "(x, y, z)".
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*
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* @return string
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*/
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@Override
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public String toString() {
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return "(" + x + ", " + y + ", " + z + ")";
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}
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/**
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* Gets a BlockVector version.
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*
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* @return BlockVector
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*/
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public BlockVector toBlockVector() {
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return new BlockVector(this);
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}
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/**
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* Gets the minimum components of two vectors.
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*
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* @param v1
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* @param v2
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* @return minimum
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*/
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public static Vector getMinimum(Vector v1, Vector v2) {
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return new Vector(
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Math.min(v1.getX(), v2.getX()),
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Math.min(v1.getY(), v2.getY()),
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Math.min(v1.getZ(), v2.getZ()));
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}
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/**
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* Gets the maximum components of two vectors.
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*
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* @param v1
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* @param v2
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* @return maximum
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*/
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public static Vector getMaximum(Vector v1, Vector v2) {
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return new Vector(
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Math.max(v1.getX(), v2.getX()),
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Math.max(v1.getY(), v2.getY()),
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Math.max(v1.getZ(), v2.getZ()));
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}
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}
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