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/*
 * The MIT License
 *
 * Copyright (c) 2015-2019 Richard Greenlees
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.joml;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.nio.ByteBuffer;
import java.nio.IntBuffer;
import java.text.DecimalFormat;
import java.text.NumberFormat;

import org.joml.Math;
import org.joml.internal.MemUtil;
import org.joml.internal.Options;
import org.joml.internal.Runtime;

/**
 * Contains the definition of a Vector comprising 4 ints and associated
 * transformations.
 *
 * @author Richard Greenlees
 * @author Kai Burjack
 * @author Hans Uhlig
 */
public class Vector4i implements Externalizable, Vector4ic {

    private static final long serialVersionUID = 1L;

    /**
     * The x component of the vector.
     */
    public int x;
    /**
     * The y component of the vector.
     */
    public int y;
    /**
     * The z component of the vector.
     */
    public int z;
    /**
     * The w component of the vector.
     */
    public int w;

    /**
     * Create a new {@link Vector4i} of (0, 0, 0, 1).
     */
    public Vector4i() {
        this.w = 1;
    }

    /**
     * Create a new {@link Vector4i} with the same values as v.
     *
     * @param v
     *          the {@link Vector4ic} to copy the values from
     */
    public Vector4i(Vector4ic v) {
        if (v instanceof Vector4i) {
            MemUtil.INSTANCE.copy((Vector4i) v, this);            
        } else {
            this.x = v.x();
            this.y = v.y();
            this.z = v.z();
            this.w = v.w();
        }
    }

    /**
     * Create a new {@link Vector4i} with the first three components from the
     * given v and the given w.
     *
     * @param v
     *          the {@link Vector3ic}
     * @param w
     *          the w component
     */
    public Vector4i(Vector3ic v, int w) {
        this(v.x(), v.y(), v.z(), w);
    }

    /**
     * Create a new {@link Vector4i} with the first two components from the
     * given v and the given z, and w.
     *
     * @param v
     *          the {@link Vector2ic}
     * @param z
     *          the z component
     * @param w
     *          the w component
     */
    public Vector4i(Vector2ic v, int z, int w) {
        this(v.x(), v.y(), z, w);
    }

    /**
     * Create a new {@link Vector4i} and initialize all four components with the
     * given value.
     *
     * @param s
     *          scalar value of all four components
     */
    public Vector4i(int s) {
        MemUtil.INSTANCE.broadcast(s, this);
    }

    /**
     * Create a new {@link Vector4i} with the given component values.
     *
     * @param x
     *          the x component
     * @param y
     *          the y component
     * @param z
     *          the z component
     * @param w
     *          the w component
     */
    public Vector4i(int x, int y, int z, int w) {
        this.x = x;
        this.y = y;
        this.z = z;
        this.w = w;
    }

    /**
     * Create a new {@link Vector4i} and read this vector from the supplied
     * {@link ByteBuffer} at the current buffer
     * {@link ByteBuffer#position() position}.
     * 

* This method will not increment the position of the given ByteBuffer. *

* In order to specify the offset into the ByteBuffer at which the vector is * read, use {@link #Vector4i(int, ByteBuffer)}, taking the absolute * position as parameter. * * @see #Vector4i(int, ByteBuffer) * * @param buffer * values will be read in x, y, z, w order */ public Vector4i(ByteBuffer buffer) { this(buffer.position(), buffer); } /** * Create a new {@link Vector4i} and read this vector from the supplied * {@link ByteBuffer} starting at the specified absolute buffer * position/index. *

* This method will not increment the position of the given ByteBuffer. * * @param index * the absolute position into the ByteBuffer * @param buffer * values will be read in x, y, z, w order */ public Vector4i(int index, ByteBuffer buffer) { MemUtil.INSTANCE.get(this, index, buffer); } /** * Create a new {@link Vector4i} and read this vector from the supplied * {@link IntBuffer} at the current buffer * {@link IntBuffer#position() position}. *

* This method will not increment the position of the given IntBuffer. *

* In order to specify the offset into the IntBuffer at which the vector is * read, use {@link #Vector4i(int, IntBuffer)}, taking the absolute position * as parameter. * * @see #Vector4i(int, IntBuffer) * * @param buffer * values will be read in x, y, z, w order */ public Vector4i(IntBuffer buffer) { this(buffer.position(), buffer); } /** * Create a new {@link Vector4i} and read this vector from the supplied * {@link IntBuffer} starting at the specified absolute buffer * position/index. *

* This method will not increment the position of the given IntBuffer. * * @param index * the absolute position into the IntBuffer * @param buffer * values will be read in x, y, z, w order */ public Vector4i(int index, IntBuffer buffer) { MemUtil.INSTANCE.get(this, index, buffer); } private Vector4i thisOrNew() { return this; } /* (non-Javadoc) * @see org.joml.Vector4ic#x() */ public int x() { return this.x; } /* (non-Javadoc) * @see org.joml.Vector4ic#y() */ public int y() { return this.y; } /* (non-Javadoc) * @see org.joml.Vector4ic#z() */ public int z() { return this.z; } /* (non-Javadoc) * @see org.joml.Vector4ic#w() */ public int w() { return this.w; } /** * Set this {@link Vector4i} to the values of the given v. * * @param v * the vector whose values will be copied into this * @return this */ public Vector4i set(Vector4ic v) { if (v instanceof Vector4i) { MemUtil.INSTANCE.copy((Vector4i) v, this); } else { this.x = v.x(); this.y = v.y(); this.z = v.z(); this.w = v.w(); } return this; } /** * Set the first three components of this to the components of * v and the last component to w. * * @param v * the {@link Vector3ic} to copy * @param w * the w component * @return this */ public Vector4i set(Vector3ic v, int w) { return set(v.x(), v.y(), v.z(), w); } /** * Sets the first two components of this to the components of given * v and last two components to the given z, and * w. * * @param v * the {@link Vector2ic} * @param z * the z component * @param w * the w component * @return this */ public Vector4i set(Vector2ic v, int z, int w) { return set(v.x(), v.y(), z, w); } /** * Set the x, y, z, and w components to the supplied value. * * @param s * the value of all four components * @return this */ public Vector4i set(int s) { MemUtil.INSTANCE.broadcast(s, this); return this; } /** * Set the x, y, z, and w components to the supplied values. * * @param x * the x component * @param y * the y component * @param z * the z component * @param w * the w component * @return this */ public Vector4i set(int x, int y, int z, int w) { this.x = x; this.y = y; this.z = z; this.w = w; return this; } /** * Read this vector from the supplied {@link ByteBuffer} at the current * buffer {@link ByteBuffer#position() position}. *

* This method will not increment the position of the given ByteBuffer. *

* In order to specify the offset into the ByteBuffer at which the vector is * read, use {@link #set(int, ByteBuffer)}, taking the absolute position as * parameter. * * @see #set(int, ByteBuffer) * * @param buffer * values will be read in x, y, z, w order * @return this */ public Vector4i set(ByteBuffer buffer) { return set(buffer.position(), buffer); } /** * Read this vector from the supplied {@link ByteBuffer} starting at the * specified absolute buffer position/index. *

* This method will not increment the position of the given ByteBuffer. * * @param index * the absolute position into the ByteBuffer * @param buffer * values will be read in x, y, z, w order * @return this */ public Vector4i set(int index, ByteBuffer buffer) { MemUtil.INSTANCE.get(this, index, buffer); return this; } /** * Read this vector from the supplied {@link IntBuffer} at the current * buffer {@link IntBuffer#position() position}. *

* This method will not increment the position of the given IntBuffer. *

* In order to specify the offset into the IntBuffer at which the vector is * read, use {@link #set(int, IntBuffer)}, taking the absolute position as * parameter. * * @see #set(int, IntBuffer) * * @param buffer * values will be read in x, y, z, w order * @return this */ public Vector4i set(IntBuffer buffer) { return set(buffer.position(), buffer); } /** * Read this vector from the supplied {@link IntBuffer} starting at the * specified absolute buffer position/index. *

* This method will not increment the position of the given IntBuffer. * * @param index * the absolute position into the IntBuffer * @param buffer * values will be read in x, y, z, w order * @return this */ public Vector4i set(int index, IntBuffer buffer) { MemUtil.INSTANCE.get(this, index, buffer); return this; } /* (non-Javadoc) * @see org.joml.Vector4ic#get(int) */ public int get(int component) throws IllegalArgumentException { switch (component) { case 0: return x; case 1: return y; case 2: return z; case 3: return w; default: throw new IllegalArgumentException(); } } /* (non-Javadoc) * @see org.joml.Vector4ic#maxComponent() */ public int maxComponent() { int absX = Math.abs(x); int absY = Math.abs(y); int absZ = Math.abs(z); int absW = Math.abs(w); if (absX >= absY && absX >= absZ && absX >= absW) { return 0; } else if (absY >= absZ && absY >= absW) { return 1; } else if (absZ >= absW) { return 2; } return 3; } /* (non-Javadoc) * @see org.joml.Vector4ic#minComponent() */ public int minComponent() { int absX = Math.abs(x); int absY = Math.abs(y); int absZ = Math.abs(z); int absW = Math.abs(w); if (absX < absY && absX < absZ && absX < absW) { return 0; } else if (absY < absZ && absY < absW) { return 1; } else if (absZ < absW) { return 2; } return 3; } /** * Set the value of the specified component of this vector. * * @param component * the component whose value to set, within [0..3] * @param value * the value to set * @return this * @throws IllegalArgumentException if component is not within [0..3] */ public Vector4i setComponent(int component, int value) throws IllegalArgumentException { switch (component) { case 0: x = value; break; case 1: y = value; break; case 2: z = value; break; case 3: w = value; break; default: throw new IllegalArgumentException(); } return this; } /* (non-Javadoc) * @see org.joml.Vector4ic#get(java.nio.IntBuffer) */ public IntBuffer get(IntBuffer buffer) { return get(buffer.position(), buffer); } /* (non-Javadoc) * @see org.joml.Vector4ic#get(int, java.nio.IntBuffer) */ public IntBuffer get(int index, IntBuffer buffer) { MemUtil.INSTANCE.put(this, index, buffer); return buffer; } /* (non-Javadoc) * @see org.joml.Vector4ic#get(java.nio.ByteBuffer) */ public ByteBuffer get(ByteBuffer buffer) { return get(buffer.position(), buffer); } /* (non-Javadoc) * @see org.joml.Vector4ic#get(int, java.nio.ByteBuffer) */ public ByteBuffer get(int index, ByteBuffer buffer) { MemUtil.INSTANCE.put(this, index, buffer); return buffer; } /** * Subtract the supplied vector from this one. * * @param v * the vector to subtract * @return a vector holding the result */ public Vector4i sub(Vector4ic v) { return sub(v, thisOrNew()); } /** * Subtract (x, y, z, w) from this. * * @param x * the x component to subtract * @param y * the y component to subtract * @param z * the z component to subtract * @param w * the w component to subtract * @return a vector holding the result */ public Vector4i sub(int x, int y, int z, int w) { return sub(x, y, z, w, thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#sub(org.joml.Vector4ic, org.joml.Vector4i) */ public Vector4i sub(Vector4ic v, Vector4i dest) { return sub(v.x(), v.y(), v.z(), v.w(), dest); } /* (non-Javadoc) * @see org.joml.Vector4ic#sub(int, int, int, int, org.joml.Vector4i) */ public Vector4i sub(int x, int y, int z, int w, Vector4i dest) { dest.x = this.x - x; dest.y = this.y - y; dest.z = this.z - z; dest.w = this.w - w; return dest; } /** * Add the supplied vector to this one. * * @param v * the vector to add * @return a vector holding the result */ public Vector4i add(Vector4ic v) { return add(v, thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#add(org.joml.Vector4ic, org.joml.Vector4i) */ public Vector4i add(Vector4ic v, Vector4i dest) { return add(v.x(), v.y(), v.z(), v.w(), dest); } /** * Increment the components of this vector by the given values. * * @param x * the x component to add * @param y * the y component to add * @param z * the z component to add * @param w * the w component to add * @return a vector holding the result */ public Vector4i add(int x, int y, int z, int w) { return add(x, y, z, w, thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#add(int, int, int, int, org.joml.Vector4i) */ public Vector4i add(int x, int y, int z, int w, Vector4i dest) { dest.x = this.x + x; dest.y = this.y + y; dest.z = this.z + z; dest.w = this.w + w; return dest; } /** * Multiply this Vector4i component-wise by another Vector4i. * * @param v * the other vector * @return a vector holding the result */ public Vector4i mul(Vector4ic v) { return mul(v, thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#mul(org.joml.Vector4ic, org.joml.Vector4i) */ public Vector4i mul(Vector4ic v, Vector4i dest) { dest.x = x * v.x(); dest.y = y * v.y(); dest.z = z * v.z(); dest.w = w * v.w(); return dest; } /** * Divide this Vector4i component-wise by another Vector4i. * * @param v * the vector to divide by * @return a vector holding the result */ public Vector4i div(Vector4ic v) { return div(v, thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#div(org.joml.Vector4ic, org.joml.Vector4i) */ public Vector4i div(Vector4ic v, Vector4i dest) { dest.x = x / v.x(); dest.y = y / v.y(); dest.z = z / v.z(); dest.w = w / v.w(); return dest; } /** * Multiply all components of this {@link Vector4i} by the given scalar * value. * * @param scalar * the scalar to multiply by * @return a vector holding the result */ public Vector4i mul(int scalar) { return mul(scalar, thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#mul(int, org.joml.Vector4i) */ public Vector4i mul(int scalar, Vector4i dest) { dest.x = x * scalar; dest.y = y * scalar; dest.z = z * scalar; dest.w = w * scalar; return dest; } /** * Divide all components of this {@link Vector4i} by the given scalar value. * * @param scalar * the scalar to divide by * @return a vector holding the result */ public Vector4i div(int scalar) { return div(scalar, thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#div(float, org.joml.Vector4i) */ public Vector4i div(float scalar, Vector4i dest) { dest.x = (int) (x / scalar); dest.y = (int) (y / scalar); dest.z = (int) (z / scalar); dest.w = (int) (w / scalar); return dest; } /* (non-Javadoc) * @see org.joml.Vector4ic#lengthSquared() */ public long lengthSquared() { return lengthSquared(x, y, z, w); } /** * Get the length squared of a 4-dimensional single-precision vector. * * @param x The vector's x component * @param y The vector's y component * @param z The vector's z component * @param w The vector's w component * * @return the length squared of the given vector */ public static long lengthSquared(int x, int y, int z, int w) { return x * x + y * y + z * z + w * w; } /* (non-Javadoc) * @see org.joml.Vector4ic#length() */ public double length() { return Math.sqrt(lengthSquared()); } /** * Get the length of a 4-dimensional single-precision vector. * * @param x The vector's x component * @param y The vector's y component * @param z The vector's z component * @param w The vector's w component * * @return the length squared of the given vector */ public static double length(int x, int y, int z, int w) { return Math.sqrt(lengthSquared(x, y, z, w)); } /* (non-Javadoc) * @see org.joml.Vector4ic#distance(org.joml.Vector4ic) */ public double distance(Vector4ic v) { return distance(v.x(), v.y(), v.z(), v.w()); } /* (non-Javadoc) * @see org.joml.Vector4ic#distance(int, int, int, int) */ public double distance(int x, int y, int z, int w) { return Math.sqrt(distanceSquared(x, y, z, w)); } /* (non-Javadoc) * @see org.joml.Vector4ic#distanceSquared(org.joml.Vector4ic) */ public long gridDistance(Vector4ic v) { return Math.abs(v.x() - x()) + Math.abs(v.y() - y()) + Math.abs(v.z() - z()) + Math.abs(v.w() - w()); } /* (non-Javadoc) * @see org.joml.Vector4ic#distanceSquared(int, int, int, int) */ public long gridDistance(int x, int y, int z, int w) { return Math.abs(x - x()) + Math.abs(y - y()) + Math.abs(z - z()) + Math.abs(w - w()); } /* (non-Javadoc) * @see org.joml.Vector4ic#distanceSquared(org.joml.Vector4ic) */ public int distanceSquared(Vector4ic v) { return distanceSquared(v.x(), v.y(), v.z(), v.w()); } /* (non-Javadoc) * @see org.joml.Vector4ic#distanceSquared(int, int, int, int) */ public int distanceSquared(int x, int y, int z, int w) { int dx = this.x - x; int dy = this.y - y; int dz = this.z - z; int dw = this.w - w; return dx * dx + dy * dy + dz * dz + dw * dw; } /** * Return the distance between (x1, y1, z1, w1) and (x2, y2, z2, w2). * * @param x1 * the x component of the first vector * @param y1 * the y component of the first vector * @param z1 * the z component of the first vector * @param w1 * the w component of the first vector * @param x2 * the x component of the second vector * @param y2 * the y component of the second vector * @param z2 * the z component of the second vector * @param w2 * the 2 component of the second vector * @return the euclidean distance */ public static double distance(int x1, int y1, int z1, int w1, int x2, int y2, int z2, int w2) { return Math.sqrt(distanceSquared(x1, y1, z1, w1, x2, y2, z2, w2)); } /** * Return the squared distance between (x1, y1, z1, w1) and (x2, y2, z2, w2). * * @param x1 * the x component of the first vector * @param y1 * the y component of the first vector * @param z1 * the z component of the first vector * @param w1 * the w component of the first vector * @param x2 * the x component of the second vector * @param y2 * the y component of the second vector * @param z2 * the z component of the second vector * @param w2 * the w component of the second vector * @return the euclidean distance squared */ public static long distanceSquared(int x1, int y1, int z1, int w1, int x2, int y2, int z2, int w2) { int dx = x1 - x2; int dy = y1 - y2; int dz = z1 - z2; int dw = w1 - w2; return dx * dx + dy * dy + dz * dz + dw * dw; } /* (non-Javadoc) * @see org.joml.Vector4ic#dot(org.joml.Vector4ic) */ public int dot(Vector4ic v) { return x * v.x() + y * v.y() + z * v.z() + w * v.w(); } /** * Set all components to zero. * * @return a vector holding the result */ public Vector4i zero() { Vector4i dest = thisOrNew(); MemUtil.INSTANCE.zero(dest); return dest; } /** * Negate this vector. * * @return a vector holding the result */ public Vector4i negate() { return negate(thisOrNew()); } /* (non-Javadoc) * @see org.joml.Vector4ic#negate(org.joml.Vector4i) */ public Vector4i negate(Vector4i dest) { dest.x = -x; dest.y = -y; dest.z = -z; dest.w = -w; return dest; } /** * Return a string representation of this vector. *

* This method creates a new {@link DecimalFormat} on every invocation with the format string "0.000E0;-". * * @return the string representation */ public String toString() { return Runtime.formatNumbers(toString(Options.NUMBER_FORMAT)); } /** * Return a string representation of this vector by formatting the vector components with the given {@link NumberFormat}. * * @param formatter * the {@link NumberFormat} used to format the vector components with * @return the string representation */ public String toString(NumberFormat formatter) { return "(" + formatter.format(x) + " " + formatter.format(y) + " " + formatter.format(z) + " " + formatter.format(w) + ")"; } public void writeExternal(ObjectOutput out) throws IOException { out.writeInt(x); out.writeInt(y); out.writeInt(z); out.writeInt(w); } public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException { x = in.readInt(); y = in.readInt(); z = in.readInt(); w = in.readInt(); } /** * Set the components of this vector to be the component-wise minimum of this and the other vector. * * @param v * the other vector * @return a vector holding the result */ public Vector4i min(Vector4ic v) { return min(v, thisOrNew()); } public Vector4i min(Vector4ic v, Vector4i dest) { dest.x = x < v.x() ? x : v.x(); dest.y = y < v.y() ? y : v.y(); dest.z = z < v.z() ? z : v.z(); dest.w = w < v.w() ? w : v.w(); return dest; } /** * Set the components of this vector to be the component-wise maximum of this and the other vector. * * @param v * the other vector * @return a vector holding the result */ public Vector4i max(Vector4ic v) { return max(v, thisOrNew()); } public Vector4i max(Vector4ic v, Vector4i dest) { dest.x = x > v.x() ? x : v.x(); dest.y = y > v.y() ? y : v.y(); dest.z = z > v.z() ? z : v.z(); dest.w = w > v.w() ? w : v.w(); return dest; } public int hashCode() { final int prime = 31; int result = 1; result = prime * result + x; result = prime * result + y; result = prime * result + z; result = prime * result + w; return result; } public boolean equals(Object obj) { if (this == obj) { return true; } if (obj == null) { return false; } if (getClass() != obj.getClass()) { return false; } Vector4i other = (Vector4i) obj; if (x != other.x) { return false; } if (y != other.y) { return false; } if (z != other.z) { return false; } if (w != other.w) { return false; } return true; } /* (non-Javadoc) * @see org.joml.Vector4ic#equals(int, int, int, int) */ public boolean equals(int x, int y, int z, int w) { if (this.x != x) return false; if (this.y != y) return false; if (this.z != z) return false; if (this.w != w) return false; return true; } }





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