/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.regions.selector;
import com.sk89q.worldedit.*;
import com.sk89q.worldedit.extension.platform.Actor;
import com.sk89q.worldedit.internal.cui.CUIRegion;
import com.sk89q.worldedit.internal.cui.SelectionEllipsoidPointEvent;
import com.sk89q.worldedit.internal.cui.SelectionPointEvent;
import com.sk89q.worldedit.regions.EllipsoidRegion;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.regions.RegionSelector;
import com.sk89q.worldedit.regions.selector.limit.SelectorLimits;
import com.sk89q.worldedit.world.World;
import javax.annotation.Nullable;
import java.util.ArrayList;
import java.util.List;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Creates a {@code EllipsoidRegionSelector} from a user's selections.
*/
public class EllipsoidRegionSelector extends com.sk89q.worldedit.regions.EllipsoidRegionSelector implements RegionSelector, CUIRegion {
protected transient EllipsoidRegion region;
protected transient boolean started = false;
/**
* Create a new selector with a {@code null} world.
*/
public EllipsoidRegionSelector() {
this((World) null);
}
/**
* Create a new selector.
*
* @param world the world, which may be {@code null}
*/
public EllipsoidRegionSelector(@Nullable World world) {
region = new EllipsoidRegion(world, new Vector(), new Vector());
}
/**
* Create a new selector from the given selector.
*
* @param oldSelector the old selector
*/
public EllipsoidRegionSelector(RegionSelector oldSelector) {
this(checkNotNull(oldSelector).getIncompleteRegion().getWorld());
if (oldSelector instanceof EllipsoidRegionSelector) {
final EllipsoidRegionSelector ellipsoidRegionSelector = (EllipsoidRegionSelector) oldSelector;
region = new EllipsoidRegion(ellipsoidRegionSelector.getIncompleteRegion());
} else {
Region oldRegion;
try {
oldRegion = oldSelector.getRegion();
} catch (IncompleteRegionException e) {
return;
}
BlockVector pos1 = oldRegion.getMinimumPoint().toBlockVector();
BlockVector pos2 = oldRegion.getMaximumPoint().toBlockVector();
Vector center = pos1.add(pos2).divide(2).floor();
region.setCenter(center);
region.setRadius(pos2.subtract(center));
}
}
/**
* Create a new selector.
*
* @param world the world
* @param center the center
* @param radius the radius
*/
public EllipsoidRegionSelector(@Nullable World world, Vector center, Vector radius) {
this(world);
region.setCenter(center);
region.setRadius(radius);
}
@Nullable
@Override
public World getWorld() {
return region.getWorld();
}
@Override
public void setWorld(@Nullable World world) {
region.setWorld(world);
}
@Override
public boolean selectPrimary(Vector position, SelectorLimits limits) {
if (position.equals(region.getCenter()) && region.getRadius().lengthSq() == 0) {
return false;
}
region.setCenter(position.toBlockVector());
region.setRadius(new Vector());
started = true;
return true;
}
@Override
public boolean selectSecondary(Vector position, SelectorLimits limits) {
if (!started) {
return false;
}
final Vector diff = position.subtract(region.getCenter());
final Vector minRadius = Vector.getMaximum(diff, diff.multiply(-1.0));
region.extendRadius(minRadius);
return true;
}
@Override
public void explainPrimarySelection(Actor player, LocalSession session, Vector pos) {
if (isDefined()) {
player.print("Center position set to " + region.getCenter() + " (" + region.getArea() + ").");
} else {
player.print("Center position set to " + region.getCenter() + ".");
}
session.describeCUI(player);
}
@Override
public void explainSecondarySelection(Actor player, LocalSession session, Vector pos) {
if (isDefined()) {
player.print("Radius set to " + region.getRadius() + " (" + region.getArea() + ").");
} else {
player.print("Radius set to " + region.getRadius() + ".");
}
session.describeCUI(player);
}
@Override
public void explainRegionAdjust(Actor player, LocalSession session) {
session.describeCUI(player);
}
@Override
public boolean isDefined() {
return started && region.getRadius().lengthSq() > 0;
}
@Override
public EllipsoidRegion getRegion() throws IncompleteRegionException {
if (!isDefined()) {
throw new IncompleteRegionException();
}
return region;
}
@Override
public EllipsoidRegion getIncompleteRegion() {
return region;
}
@Override
public void learnChanges() {
}
@Override
public void clear() {
region.setCenter(new Vector());
region.setRadius(new Vector());
}
@Override
public String getTypeName() {
return "ellipsoid";
}
@Override
public List<String> getInformationLines() {
final List<String> lines = new ArrayList<String>();
final Vector center = region.getCenter();
if (center.lengthSq() > 0) {
lines.add("Center: " + center);
}
final Vector radius = region.getRadius();
if (radius.lengthSq() > 0) {
lines.add("X/Y/Z radius: " + radius);
}
return lines;
}
@Override
public int getArea() {
return region.getArea();
}
@Override
public void describeCUI(LocalSession session, Actor player) {
session.dispatchCUIEvent(player, new SelectionEllipsoidPointEvent(0, region.getCenter()));
session.dispatchCUIEvent(player, new SelectionEllipsoidPointEvent(1, region.getRadius()));
}
@Override
public void describeLegacyCUI(LocalSession session, Actor player) {
session.dispatchCUIEvent(player, new SelectionPointEvent(0, region.getMinimumPoint(), getArea()));
session.dispatchCUIEvent(player, new SelectionPointEvent(1, region.getMaximumPoint(), getArea()));
}
@Override
public String getLegacyTypeID() {
return "cuboid";
}
@Override
public int getProtocolVersion() {
return 1;
}
@Override
public String getTypeID() {
return "ellipsoid";
}
@Override
public BlockVector getPrimaryPosition() throws IncompleteRegionException {
return region.getCenter().toBlockVector();
}
}