Plex-FAWE/src/com/sk89q/worldedit/Vector.java

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