786 lines
21 KiB
Java
786 lines
21 KiB
Java
/*
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* WorldEdit, a Minecraft world manipulation toolkit
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* Copyright (C) sk89q <http://www.sk89q.com>
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* Copyright (C) WorldEdit team and contributors
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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 <https://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.math;
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import com.fastasyncworldedit.core.math.MutableVector3;
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import com.fastasyncworldedit.core.math.Vector3Impl;
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import com.fastasyncworldedit.core.util.MathMan;
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import com.google.common.collect.ComparisonChain;
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import com.sk89q.worldedit.math.transform.AffineTransform;
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import dev.plex.SanityChecks;
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import java.util.Comparator;
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import static com.google.common.base.Preconditions.checkArgument;
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/**
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* An immutable 3-dimensional vector.
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*/
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public abstract class Vector3 {
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public static final Vector3 ZERO = Vector3.at(0, 0, 0);
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public static final Vector3 UNIT_X = Vector3.at(1, 0, 0);
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public static final Vector3 UNIT_Y = Vector3.at(0, 1, 0);
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public static final Vector3 UNIT_Z = Vector3.at(0, 0, 1);
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public static final Vector3 ONE = Vector3.at(1, 1, 1);
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public static Vector3 at(double x, double y, double z) {
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/*FAWE start - Unnecessary
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// switch for efficiency on typical cases
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// in MC y is rarely 0/1 on selections
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int yTrunc = (int) y;
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switch (yTrunc) {
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case 0:
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if (x == 0 && y == 0 && z == 0) {
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return ZERO;
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}
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break;
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case 1:
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if (x == 1 && y == 1 && z == 1) {
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return ONE;
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}
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break;
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default:
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break;
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}
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Fawe end
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*/
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// From Allink
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final double[] saneCoords = SanityChecks.getSane(x, y, z);
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return new Vector3Impl(saneCoords[0], saneCoords[1], saneCoords[2]);
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}
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// thread-safe initialization idiom
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private static final class YzxOrderComparator {
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private static final Comparator<Vector3> YZX_ORDER = (a, b) -> {
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return ComparisonChain.start()
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.compare(a.getY(), b.getY())
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.compare(a.getZ(), b.getZ())
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.compare(a.getX(), b.getX())
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.result();
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};
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}
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/**
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* Returns a comparator that sorts vectors first by Y, then Z, then X.
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*
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* <p>
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* Useful for sorting by chunk block storage order.
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* </p>
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*/
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public static Comparator<Vector3> sortByCoordsYzx() {
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return YzxOrderComparator.YZX_ORDER;
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}
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//FAWE start
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/**
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* Gets the x coordinate rounded, accounting for negative coordinates
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*
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* @return the x coordinate
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*/
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public int getBlockX() {
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return MathMan.roundInt(getX());
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}
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/**
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* Gets the y coordinate rounded, accounting for negative coordinates
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*
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* @return the y coordinate
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*/
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public int getBlockY() {
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return MathMan.roundInt(getY());
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}
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/**
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* Gets the z coordinate rounded, accounting for negative coordinates
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*
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* @return the z coordinate
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*/
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public int getBlockZ() {
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return MathMan.roundInt(getZ());
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}
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public MutableVector3 setComponents(Vector3 other) {
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return new MutableVector3(other);
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}
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public MutableVector3 setComponents(int x, int y, int z) {
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return new MutableVector3(x, y, z);
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}
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public MutableVector3 setComponents(double x, double y, double z) {
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return new MutableVector3(x, y, z);
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}
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public MutableVector3 mutX(int x) {
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return new MutableVector3(x, getY(), getZ());
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}
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public MutableVector3 mutX(double x) {
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return new MutableVector3(x, getY(), getZ());
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}
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public MutableVector3 mutY(int y) {
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return new MutableVector3(getX(), y, getZ());
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}
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public MutableVector3 mutY(double y) {
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return new MutableVector3(getX(), y, getZ());
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}
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public MutableVector3 mutZ(int z) {
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return new MutableVector3(getX(), getY(), z);
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}
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public MutableVector3 mutZ(double z) {
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return new MutableVector3(getX(), getY(), z);
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}
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//FAWE end
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/**
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* Get the X coordinate.
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*
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* @return the x coordinate
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*/
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//FAWE start - made abstract
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public abstract double getX();
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//FAWE end
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/**
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* Set the X coordinate.
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*
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* @param x the new X
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 withX(double x) {
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return Vector3.at(x, getY(), getZ());
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}
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//FAWE end
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/**
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* Get the Y coordinate.
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*
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* @return the y coordinate
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*/
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//FAWE start - made abstract
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public abstract double getY();
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//FAWE end
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/**
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* Set the Y coordinate.
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*
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* @param y the new Y
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 withY(double y) {
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return Vector3.at(getX(), y, getZ());
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}
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//FAWE end
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/**
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* Get the Z coordinate.
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*
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* @return the z coordinate
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*/
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//FAWE start - made abstract
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public abstract double getZ();
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//FAWE end
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/**
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* Set the Z coordinate.
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*
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* @param z the new Z
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 withZ(double z) {
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return Vector3.at(getX(), getY(), z);
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}
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//FAWE end
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/**
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* Add another vector to this vector and return the result as a new vector.
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*
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* @param other the other vector
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 add(Vector3 other) {
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return add(other.getX(), other.getY(), other.getZ());
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}
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//FAWE end
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/**
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* Add another vector to this vector and return the result as a new vector.
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*
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* @param x the value to add
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* @param y the value to add
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* @param z the value to add
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 add(double x, double y, double z) {
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return Vector3.at(this.getX() + x, this.getY() + y, this.getZ() + z);
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}
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//FAWE end
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/**
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* Add a list of vectors to this vector and return the
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* result as a new vector.
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*
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* @param others an array of vectors
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 add(Vector3... others) {
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double newX = getX();
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double newY = getY();
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double newZ = getZ();
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for (Vector3 other : others) {
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newX += other.getX();
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newY += other.getY();
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newZ += other.getZ();
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}
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return Vector3.at(newX, newY, newZ);
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}
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//FAWE end
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/**
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* Subtract another vector from this vector and return the result
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* as a new vector.
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*
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* @param other the other vector
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 subtract(Vector3 other) {
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return subtract(other.getX(), other.getY(), other.getZ());
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}
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//FAWE end
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/**
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* Subtract another vector from this vector and return the result
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* as a new vector.
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*
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* @param x the value to subtract
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* @param y the value to subtract
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* @param z the value to subtract
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 subtract(double x, double y, double z) {
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return Vector3.at(this.getX() - x, this.getY() - y, this.getZ() - z);
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}
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//FAWE end
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/**
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* Subtract a list of vectors from this vector and return the result
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* as a new vector.
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*
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* @param others an array of vectors
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 subtract(Vector3... others) {
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double newX = getX();
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double newY = getY();
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double newZ = getZ();
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for (Vector3 other : others) {
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newX -= other.getX();
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newY -= other.getY();
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newZ -= other.getZ();
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}
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return Vector3.at(newX, newY, newZ);
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}
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//FAWE end
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/**
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* Multiply this vector by another vector on each component.
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*
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* @param other the other vector
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 multiply(Vector3 other) {
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return multiply(other.getX(), other.getY(), other.getZ());
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}
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//FAWE end
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/**
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* Multiply this vector by another vector on each component.
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*
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* @param x the value to multiply
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* @param y the value to multiply
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* @param z the value to multiply
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 multiply(double x, double y, double z) {
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return Vector3.at(this.getX() * x, this.getY() * y, this.getZ() * z);
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}
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//FAWE end
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/**
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* Multiply this vector by zero or more vectors on each component.
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*
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* @param others an array of vectors
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 multiply(Vector3... others) {
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double newX = getX();
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double newY = getY();
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double newZ = getZ();
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for (Vector3 other : others) {
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newX *= other.getX();
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newY *= other.getY();
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newZ *= other.getZ();
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}
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return Vector3.at(newX, newY, newZ);
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}
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//FAWE end
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/**
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* Perform scalar multiplication and return a new vector.
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*
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* @param n the value to multiply
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* @return a new vector
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*/
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public Vector3 multiply(double n) {
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return multiply(n, n, n);
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}
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/**
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* Divide this vector by another vector on each component.
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*
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* @param other the other vector
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 divide(Vector3 other) {
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return divide(other.getX(), other.getY(), other.getZ());
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}
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//FAWE end
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/**
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* Divide this vector by another vector on each component.
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*
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* @param x the value to divide by
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* @param y the value to divide by
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* @param z the value to divide by
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 divide(double x, double y, double z) {
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return Vector3.at(this.getX() / x, this.getY() / y, this.getZ() / z);
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}
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//FAWE end
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/**
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* Perform scalar division and return a new vector.
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*
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* @param n the value to divide by
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* @return a new vector
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*/
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public Vector3 divide(double n) {
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return divide(n, n, 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 length
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*/
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public double length() {
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return Math.sqrt(lengthSq());
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}
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/**
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* Get the length, squared, of the vector.
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*
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* @return length, squared
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*/
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//FAWE start - getter
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public double lengthSq() {
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return getX() * getX() + getY() * getY() + getZ() * getZ();
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}
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//FAWE end
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/**
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* Get the distance between this vector and another vector.
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*
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* @param other the other vector
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* @return distance
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*/
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public double distance(Vector3 other) {
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return Math.sqrt(distanceSq(other));
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}
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/**
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* Get the distance between this vector and another vector, squared.
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*
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* @param other the other vector
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* @return distance
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*/
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//FAWE start - getter
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public double distanceSq(Vector3 other) {
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double dx = other.getX() - getX();
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double dy = other.getY() - getY();
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double dz = other.getZ() - getZ();
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return dx * dx + dy * dy + dz * dz;
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}
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//FAWE end
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/**
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* Get the normalized vector, which is the vector divided by its
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* length, as a new vector.
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*
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* @return a new vector
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*/
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public Vector3 normalize() {
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return divide(length());
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}
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/**
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* Gets the dot product of this and another vector.
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*
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* @param other the other vector
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* @return the dot product of this and the other vector
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*/
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//FAWE start - getter
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public double dot(Vector3 other) {
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return getX() * other.getX() + getY() * other.getY() + getZ() * other.getZ();
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}
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//FAWE end
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/**
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* Gets the cross product of this and another vector.
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*
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* @param other the other vector
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* @return the cross product of this and the other vector
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*/
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//FAWE start - getter
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public Vector3 cross(Vector3 other) {
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return Vector3.at(
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getY() * other.getZ() - getZ() * other.getY(),
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getZ() * other.getX() - getX() * other.getZ(),
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getX() * other.getY() - getY() * other.getX()
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);
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}
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//FAWE end
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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 the minimum point (X, Y, and Z are the lowest)
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* @param max the maximum point (X, Y, and Z are the lowest)
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* @return true if the vector is contained
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*/
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//FAWE start - getter
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public boolean containedWithin(Vector3 min, Vector3 max) {
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return getX() >= min.getX() && getX() <= max.getX() && getY() >= min.getY() && getY() <= max.getY() && getZ() >= min.getZ() && getZ() <= max
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.getZ();
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}
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//FAWE end
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/**
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* Clamp the Y component.
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*
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* @param min the minimum value
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* @param max the maximum value
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 clampY(int min, int max) {
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checkArgument(min <= max, "minimum cannot be greater than maximum");
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if (getY() < min) {
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return Vector3.at(getX(), min, getZ());
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}
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if (getY() > max) {
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return Vector3.at(getX(), max, getZ());
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}
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return this;
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}
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//FAWE end
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|
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/**
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* Floors the values of all components.
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*
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 floor() {
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return Vector3.at(Math.floor(getX()), Math.floor(getY()), Math.floor(getZ()));
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}
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//FAWE end
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/**
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* Rounds all components up.
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*
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* @return a new vector
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*/
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//FAWE start - getter
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public Vector3 ceil() {
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return Vector3.at(Math.ceil(getX()), Math.ceil(getY()), Math.ceil(getZ()));
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}
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//FAWE end
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|
|
|
/**
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* Rounds all components to the closest integer.
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*
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* <p>Components < 0.5 are rounded down, otherwise up.</p>
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*
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* @return a new vector
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*/
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|
//FAWE start - getter
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public Vector3 round() {
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return Vector3.at(Math.floor(getX() + 0.5), Math.floor(getY() + 0.5), Math.floor(getZ() + 0.5));
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}
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|
//FAWE end
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|
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|
/**
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* Rounds all components using {@link MathUtils#roundHalfUp(double)}
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*
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* @return a new vector
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*/
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|
//FAWE start - getter
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|
public Vector3 roundHalfUp() {
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return Vector3.at(MathUtils.roundHalfUp(getX()), MathUtils.roundHalfUp(getY()), MathUtils.roundHalfUp(getZ()));
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}
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|
//FAWE end
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|
|
|
/**
|
|
* Returns a vector with the absolute values of the components of
|
|
* this vector.
|
|
*
|
|
* @return a new vector
|
|
*/
|
|
//FAWE start - getter
|
|
public Vector3 abs() {
|
|
return Vector3.at(Math.abs(getX()), Math.abs(getY()), Math.abs(getZ()));
|
|
}
|
|
//FAWE end
|
|
|
|
/**
|
|
* Perform a 2D transformation on this vector and return a new one.
|
|
*
|
|
* @param angle in degrees
|
|
* @param aboutX about which x coordinate to rotate
|
|
* @param aboutZ about which z coordinate to rotate
|
|
* @param translateX what to add after rotation
|
|
* @param translateZ what to add after rotation
|
|
* @return a new vector
|
|
* @see AffineTransform another method to transform vectors
|
|
*/
|
|
//FAWE start - getter
|
|
public Vector3 transform2D(double angle, double aboutX, double aboutZ, double translateX, double translateZ) {
|
|
angle = Math.toRadians(angle);
|
|
double x = this.getX() - aboutX;
|
|
double z = this.getZ() - aboutZ;
|
|
double cos = Math.cos(angle);
|
|
double sin = Math.sin(angle);
|
|
double x2 = x * cos - z * sin;
|
|
double z2 = x * sin + z * cos;
|
|
|
|
return Vector3.at(
|
|
x2 + aboutX + translateX,
|
|
getY(),
|
|
z2 + aboutZ + translateZ
|
|
);
|
|
}
|
|
//FAWE end
|
|
|
|
/**
|
|
* Get this vector's pitch as used within the game.
|
|
*
|
|
* @return pitch in radians
|
|
*/
|
|
public double toPitch() {
|
|
double x = getX();
|
|
double z = getZ();
|
|
|
|
if (x == 0 && z == 0) {
|
|
return getY() > 0 ? -90 : 90;
|
|
} else {
|
|
double x2 = x * x;
|
|
double z2 = z * z;
|
|
double xz = Math.sqrt(x2 + z2);
|
|
return Math.toDegrees(Math.atan(-getY() / xz));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Get this vector's yaw as used within the game.
|
|
*
|
|
* @return yaw in radians
|
|
*/
|
|
public double toYaw() {
|
|
double x = getX();
|
|
double z = getZ();
|
|
|
|
double t = Math.atan2(-x, z);
|
|
double tau = 2 * Math.PI;
|
|
|
|
return Math.toDegrees(((t + tau) % tau));
|
|
}
|
|
|
|
/**
|
|
* Gets the minimum components of two vectors.
|
|
*
|
|
* @param v2 the second vector
|
|
* @return minimum
|
|
*/
|
|
//FAWE start - getter
|
|
public Vector3 getMinimum(Vector3 v2) {
|
|
return Vector3.at(
|
|
Math.min(getX(), v2.getX()),
|
|
Math.min(getY(), v2.getY()),
|
|
Math.min(getZ(), v2.getZ())
|
|
);
|
|
}
|
|
//FAWE end
|
|
|
|
/**
|
|
* Gets the maximum components of two vectors.
|
|
*
|
|
* @param v2 the second vector
|
|
* @return maximum
|
|
*/
|
|
//FAWE start - getter
|
|
public Vector3 getMaximum(Vector3 v2) {
|
|
return Vector3.at(
|
|
Math.max(getX(), v2.getX()),
|
|
Math.max(getY(), v2.getY()),
|
|
Math.max(getZ(), v2.getZ())
|
|
);
|
|
}
|
|
//FAWE end
|
|
|
|
/**
|
|
* Create a new {@code BlockVector} using the given components.
|
|
*
|
|
* @param x the X coordinate
|
|
* @param y the Y coordinate
|
|
* @param z the Z coordinate
|
|
* @return a new {@code BlockVector}
|
|
*/
|
|
public static BlockVector3 toBlockPoint(double x, double y, double z) {
|
|
return BlockVector3.at(x, y, z);
|
|
}
|
|
|
|
/**
|
|
* Create a new {@code BlockVector} from this vector.
|
|
*
|
|
* @return a new {@code BlockVector}
|
|
*/
|
|
//FAWE start - getter
|
|
public BlockVector3 toBlockPoint() {
|
|
return toBlockPoint(getX(), getY(), getZ());
|
|
}
|
|
//FAWE end
|
|
|
|
/**
|
|
* Creates a 2D vector by dropping the Y component from this vector.
|
|
*
|
|
* @return a new {@link Vector2}
|
|
*/
|
|
//FAWE start - getter
|
|
public Vector2 toVector2() {
|
|
return Vector2.at(getX(), getZ());
|
|
}
|
|
//FAWE end
|
|
|
|
@Override
|
|
public boolean equals(Object obj) {
|
|
if (!(obj instanceof Vector3)) {
|
|
return false;
|
|
}
|
|
|
|
Vector3 other = (Vector3) obj;
|
|
//FAWE start - getter
|
|
return other.getX() == this.getX() && other.getY() == this.getY() && other.getZ() == this.getZ();
|
|
//FAWE end
|
|
}
|
|
|
|
//FAWE start
|
|
|
|
/**
|
|
* Tests if vectors are equal, accounting for floating point errors
|
|
*
|
|
* @param other Another Vector3
|
|
* @return if the vectors are effectively equal
|
|
*/
|
|
public boolean equalsFuzzy(Vector3 other) {
|
|
if (this.equals(other)) {
|
|
return true;
|
|
}
|
|
|
|
// Minecraft deals in whole blocks, thus any difference smaller than this is unnecessary
|
|
if (Math.abs(getX() - other.getX()) > 0.000001d) {
|
|
return false;
|
|
}
|
|
if (Math.abs(getY() - other.getY()) > 0.000001d) {
|
|
return false;
|
|
}
|
|
return !(Math.abs(getZ() - other.getZ()) > 0.000001d);
|
|
}
|
|
//FAWE end
|
|
|
|
@Override
|
|
//FAWE start - XOR over get calculating all values independently
|
|
public int hashCode() {
|
|
return (int) getX() ^ (int) getZ() << 12 ^ (int) getY() << 24;
|
|
}
|
|
|
|
@Override
|
|
public String toString() {
|
|
//FAWE start - getter & ternary
|
|
String x = (getX() == getBlockX() ? "" + getBlockX() : "" + getX());
|
|
String y = (getY() == getBlockY() ? "" + getBlockY() : "" + getY());
|
|
String z = (getZ() == getBlockZ() ? "" + getBlockZ() : "" + getZ());
|
|
//FAWE end
|
|
return "(" + x + ", " + y + ", " + z + ")";
|
|
}
|
|
|
|
/**
|
|
* Returns a string representation that is supported by the parser.
|
|
*
|
|
* @return string
|
|
*/
|
|
//FAWE start - getter
|
|
public String toParserString() {
|
|
return getX() + "," + getY() + "," + getZ();
|
|
}
|
|
//FAWE end
|
|
|
|
}
|