geforkt von Mirrors/FastAsyncWorldEdit
Merge pull request #269 from sk89q/generatebiome
Added a //generatebiome command, which uses formulae to generate free-form biomes.
Dieser Commit ist enthalten in:
Albert Pham
Commit
9930fb7338
@ -46,6 +46,7 @@ import com.sk89q.worldedit.patterns.Pattern;
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import com.sk89q.worldedit.regions.CuboidRegion;
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import com.sk89q.worldedit.regions.Region;
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import com.sk89q.worldedit.regions.RegionOperationException;
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import com.sk89q.worldedit.shape.ArbitraryBiomeShape;
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import com.sk89q.worldedit.shape.ArbitraryShape;
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import com.sk89q.worldedit.shape.RegionShape;
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import com.sk89q.worldedit.shape.WorldEditExpressionEnvironment;
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@ -3019,4 +3020,38 @@ public class EditSession {
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} // while
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}
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public int makeBiomeShape(final Region region, final Vector zero, final Vector unit, final BiomeType biomeType, final String expressionString, final boolean hollow) throws ExpressionException, MaxChangedBlocksException {
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final Vector2D zero2D = zero.toVector2D();
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final Vector2D unit2D = unit.toVector2D();
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final Expression expression = Expression.compile(expressionString, "x", "z");
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expression.optimize();
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final EditSession editSession = this;
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final WorldEditExpressionEnvironment environment = new WorldEditExpressionEnvironment(editSession, unit, zero);
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expression.setEnvironment(environment);
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final ArbitraryBiomeShape shape = new ArbitraryBiomeShape(region) {
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@Override
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protected BiomeType getBiome(int x, int z, BiomeType defaultBiomeType) {
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final Vector2D current = new Vector2D(x, z);
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environment.setCurrentBlock(current.toVector(0));
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final Vector2D scaled = current.subtract(zero2D).divide(unit2D);
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try {
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if (expression.evaluate(scaled.getX(), scaled.getZ()) <= 0) {
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return null;
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}
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// TODO: Allow biome setting via a script variable (needs BiomeType<->int mapping)
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return defaultBiomeType;
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} catch (Exception e) {
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e.printStackTrace();
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return null;
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}
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}
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};
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return shape.generate(this, biomeType, hollow);
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}
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}
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@ -27,10 +27,12 @@ import com.sk89q.minecraft.util.commands.Command;
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import com.sk89q.minecraft.util.commands.CommandContext;
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import com.sk89q.minecraft.util.commands.CommandPermissions;
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import com.sk89q.minecraft.util.commands.Logging;
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import com.sk89q.worldedit.BiomeType;
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import com.sk89q.worldedit.EditSession;
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import com.sk89q.worldedit.LocalPlayer;
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import com.sk89q.worldedit.LocalSession;
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import com.sk89q.worldedit.Vector;
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import com.sk89q.worldedit.Vector2D;
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import com.sk89q.worldedit.WorldEdit;
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import com.sk89q.worldedit.WorldEditException;
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import com.sk89q.worldedit.expression.ExpressionException;
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@ -415,4 +417,71 @@ public class GenerationCommands {
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player.printError(e.getMessage());
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}
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}
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@Command(
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aliases = { "/generatebiome", "/genbiome", "/gb" },
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usage = "<block> <expression>",
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desc = "Sets biome according to a formula.",
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help =
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"Generates a shape according to a formula that is expected to\n" +
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"return positive numbers (true) if the point is inside the shape\n" +
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"Optionally set type/data to the desired block.\n" +
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"Flags:\n" +
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" -h to generate a hollow shape\n" +
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" -r to use raw minecraft coordinates\n" +
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" -o is like -r, except offset from placement.\n" +
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" -c is like -r, except offset selection center.\n" +
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"If neither -r nor -o is given, the selection is mapped to -1..1\n" +
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"See also tinyurl.com/wesyntax.",
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flags = "hroc",
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min = 2,
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max = -1
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)
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@CommandPermissions({"worldedit.generation.shape", "worldedit.biome.set"})
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@Logging(ALL)
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public void generateBiome(CommandContext args, LocalSession session, LocalPlayer player,
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EditSession editSession) throws WorldEditException {
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final BiomeType target = we.getServer().getBiomes().get(args.getString(0));
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final Region region = session.getSelection(player.getWorld());
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final boolean hollow = args.hasFlag('h');
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final String expression = args.getJoinedStrings(1);
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final Vector zero;
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Vector unit;
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if (args.hasFlag('r')) {
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zero = Vector.ZERO;
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unit = Vector.ONE;
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} else if (args.hasFlag('o')) {
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zero = session.getPlacementPosition(player);
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unit = Vector.ONE;
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} else if (args.hasFlag('c')) {
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final Vector min = region.getMinimumPoint();
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final Vector max = region.getMaximumPoint();
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zero = max.add(min).multiply(0.5);
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unit = Vector.ONE;
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} else {
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final Vector min = region.getMinimumPoint();
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final Vector max = region.getMaximumPoint();
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zero = max.add(min).multiply(0.5);
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unit = max.subtract(zero);
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if (unit.getX() == 0) unit = unit.setX(1.0);
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if (unit.getY() == 0) unit = unit.setY(1.0);
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if (unit.getZ() == 0) unit = unit.setZ(1.0);
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}
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try {
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final int affected = editSession.makeBiomeShape(region, zero, unit, target, expression, hollow);
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player.findFreePosition();
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player.print("Biome changed to " + target.getName() + ". " + affected + " columns affected.");
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} catch (ExpressionException e) {
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player.printError(e.getMessage());
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}
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}
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}
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189
src/main/java/com/sk89q/worldedit/shape/ArbitraryBiomeShape.java
Normale Datei
189
src/main/java/com/sk89q/worldedit/shape/ArbitraryBiomeShape.java
Normale Datei
@ -0,0 +1,189 @@
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// $Id$
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/*
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* WorldEdit
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* Copyright (C) 2010 sk89q <http://www.sk89q.com> 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 <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.shape;
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import com.sk89q.worldedit.BiomeType;
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import com.sk89q.worldedit.EditSession;
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import com.sk89q.worldedit.Vector2D;
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import com.sk89q.worldedit.regions.CuboidRegion;
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import com.sk89q.worldedit.regions.FlatRegion;
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import com.sk89q.worldedit.regions.Region;
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/**
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* Generates solid and hollow shapes according to materials returned by the
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* {@link #getBiome} method.
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*
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* @author TomyLobo
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*/
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public abstract class ArbitraryBiomeShape {
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private final FlatRegion extent;
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private int cacheOffsetX;
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private int cacheOffsetZ;
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@SuppressWarnings("FieldCanBeLocal")
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private int cacheSizeX;
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private int cacheSizeZ;
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public ArbitraryBiomeShape(Region extent) {
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if (extent instanceof FlatRegion) {
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this.extent = (FlatRegion) extent;
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}
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else {
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// TODO: polygonize
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this.extent = new CuboidRegion(extent.getWorld(), extent.getMinimumPoint(), extent.getMaximumPoint());
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}
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Vector2D min = extent.getMinimumPoint().toVector2D();
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Vector2D max = extent.getMaximumPoint().toVector2D();
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cacheOffsetX = min.getBlockX() - 1;
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cacheOffsetZ = min.getBlockZ() - 1;
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cacheSizeX = (int) (max.getX() - cacheOffsetX + 2);
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cacheSizeZ = (int) (max.getZ() - cacheOffsetZ + 2);
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cache = new BiomeType[cacheSizeX * cacheSizeZ];
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}
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protected Iterable<Vector2D> getExtent() {
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return extent.asFlatRegion();
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}
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/**
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* Cache entries:
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* null = unknown
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* OUTSIDE = outside
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* else = inside
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*/
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private final BiomeType[] cache;
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/**
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* Override this function to specify the shape to generate.
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*
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* @param x X coordinate to be queried
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* @param z Z coordinate to be queried
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* @param defaultBiomeType The default biome for the current column.
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* @return material to place or null to not place anything.
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*/
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protected abstract BiomeType getBiome(int x, int z, BiomeType defaultBiomeType);
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private BiomeType getBiomeCached(int x, int z, BiomeType biomeType) {
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final int index = (z - cacheOffsetZ) + (x - cacheOffsetX) * cacheSizeZ;
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final BiomeType cacheEntry = cache[index];
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if (cacheEntry == null) {// unknown, fetch material
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final BiomeType material = getBiome(x, z, biomeType);
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if (material == null) {
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// outside
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cache[index] = OUTSIDE;
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return null;
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}
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cache[index] = material;
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return material;
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}
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if (cacheEntry == OUTSIDE) {
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// outside
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return null;
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}
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return cacheEntry;
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}
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private boolean isInsideCached(int x, int z, BiomeType biomeType) {
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final int index = (z - cacheOffsetZ) + (x - cacheOffsetX) * cacheSizeZ;
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final BiomeType cacheEntry = cache[index];
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if (cacheEntry == null) {
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// unknown block, meaning they must be outside the extent at this stage, but might still be inside the shape
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return getBiomeCached(x, z, biomeType) != null;
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}
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return cacheEntry != OUTSIDE;
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}
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/**
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* Generates the shape.
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*
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* @param editSession The EditSession to use.
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* @param biomeType The default biome type.
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* @param hollow Specifies whether to generate a hollow shape.
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* @return number of affected blocks.
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*/
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public int generate(EditSession editSession, BiomeType biomeType, boolean hollow) {
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int affected = 0;
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for (Vector2D position : getExtent()) {
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int x = position.getBlockX();
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int z = position.getBlockZ();
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if (!hollow) {
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final BiomeType material = getBiome(x, z, biomeType);
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if (material != OUTSIDE) {
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editSession.getWorld().setBiome(position, material);
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++affected;
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}
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continue;
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}
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final BiomeType material = getBiomeCached(x, z, biomeType);
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if (material == null) {
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continue;
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}
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boolean draw = false;
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do {
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if (!isInsideCached(x + 1, z, biomeType)) {
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draw = true;
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break;
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}
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if (!isInsideCached(x - 1, z, biomeType)) {
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draw = true;
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break;
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}
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if (!isInsideCached(x, z + 1, biomeType)) {
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draw = true;
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break;
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}
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if (!isInsideCached(x, z - 1, biomeType)) {
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draw = true;
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break;
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}
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} while (false);
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if (!draw) {
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continue;
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}
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editSession.getWorld().setBiome(position, material);
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++affected;
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}
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return affected;
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}
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private static final BiomeType OUTSIDE = new BiomeType() {
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public String getName() {
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throw new UnsupportedOperationException();
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}
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};
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}
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