Plex-FAWE/src/RegionClipboard.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/>.
*/
import org.jnbt.*;
import java.io.*;
import java.util.Map;
import java.util.HashMap;
import java.util.ArrayList;
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import com.sk89q.worldedit.*;
/**
*
* @author Albert
*/
public class RegionClipboard {
private int[][][] data;
private Point<Integer> min;
private Point<Integer> max;
private Point<Integer> origin;
/**
* Constructs the region instance. The minimum and maximum points must be
* the respective minimum and maximum numbers!
*
* @param min
* @param max
* @param origin
*/
public RegionClipboard(Point<Integer> min, Point<Integer> max, Point<Integer> origin) {
this.min = min;
this.max = max;
this.origin = origin;
data = new int[(max.getX()) - min.getX() + 1]
[max.getY() - min.getY() + 1]
[max.getZ() - min.getZ() + 1];
}
/**
* Get the width (X-direction) of the clipboard.
*
* @return
*/
public int getWidth() {
return max.getX() - min.getX() + 1;
}
/**
* Get the length (Z-direction) of the clipboard.
*
* @return
*/
public int getLength() {
return max.getZ() - min.getZ() + 1;
}
/**
* Get the height (Y-direction) of the clipboard.
*
* @return
*/
public int getHeight() {
return max.getY() - min.getY() + 1;
}
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/**
* Copy to the clipboard.
*
* @param editSession
*/
public void copy(EditSession editSession) {
for (int x = min.getX(); x <= max.getX(); x++) {
for (int y = min.getY(); y <= max.getY(); y++) {
for (int z = min.getZ(); z <= max.getZ(); z++) {
data[x - min.getX()][y - min.getY()][z - min.getZ()] =
editSession.getBlock(x, y, z);
}
}
}
}
/**
* Paste from the clipboard.
*
* @param editSession
* @param origin Position to paste it from
* @param noAir True to not paste air
* @throws MaxChangedBlocksException
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*/
public void paste(EditSession editSession, Point<Integer> newOrigin, boolean noAir)
throws MaxChangedBlocksException {
int offsetX = min.getX() - origin.getX() + newOrigin.getX();
int offsetY = min.getY() - origin.getY() + newOrigin.getY();
int offsetZ = min.getZ() - origin.getZ() + newOrigin.getZ();
place(editSession, offsetX, offsetY, offsetZ, noAir);
}
/**
* Places the blocks in a position from the minimum corner.
*
* @param editSession
* @param offsetX
* @param offsetY
* @param offsetZ
* @param noAir
* @throws MaxChangedBlocksException
*/
public void place(EditSession editSession, int offsetX,
int offsetY, int offsetZ, boolean noAir)
throws MaxChangedBlocksException {
int xs = getWidth();
int ys = getHeight();
int zs = getLength();
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for (int x = 0; x < xs; x++) {
for (int y = 0; y < ys; y++) {
for (int z = 0; z < zs; z++) {
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if (noAir && data[x][y][z] == 0) { continue; }
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editSession.setBlock(x + offsetX, y + offsetY, z + offsetZ,
data[x][y][z]);
}
}
}
}
/**
* Stack the clipboard in a certain direction a certain number of
* times.
*
* @param editSession
* @param xm
* @param ym
* @param zm
* @short count
* @param noAir
* @param moveOrigin move the origin
* @throws MaxChangedBlocksException
*/
public void stack(EditSession editSession, int xm, int ym, int zm, short count,
boolean noAir, boolean moveOrigin) throws MaxChangedBlocksException {
int xs = getWidth();
int ys = getHeight();
int zs = getLength();
int offsetX = min.getX();
int offsetY = min.getY();
int offsetZ = min.getZ();
for (short i = 1; i <= count; i++) {
place(editSession, offsetX + xm * xs, offsetY + ym * ys,
offsetZ + zm * zs, noAir);
}
if (moveOrigin) {
min = new Point<Integer>(offsetX + xm * count,
offsetY + ym * count,
offsetZ + zm * count);
}
}
/**
* Saves the clipboard data to a .schematic-format file.
*
* @param path
* @throws IOException
* @throws SchematicException
*/
public void saveSchematic(String path) throws IOException, SchematicException {
int xs = getWidth();
int ys = getHeight();
int zs = getLength();
if (xs > 65535) {
throw new SchematicException("Width of region too large for a .schematic");
}
if (ys > 65535) {
throw new SchematicException("Height of region too large for a .schematic");
}
if (zs > 65535) {
throw new SchematicException("Length of region too large for a .schematic");
}
HashMap<String,Tag> schematic = new HashMap<String,Tag>();
schematic.put("Width", new ShortTag("Width", (short)xs));
schematic.put("Length", new ShortTag("Length", (short)zs));
schematic.put("Height", new ShortTag("Height", (short)ys));
schematic.put("Materials", new StringTag("Materials", "Alpha"));
// Copy blocks
byte[] blocks = new byte[xs * ys * zs];
for (int x = 0; x < xs; x++) {
for (int y = 0; y < ys; y++) {
for (int z = 0; z < zs; z++) {
int index = y * xs * zs + z * xs + x;
blocks[index] = (byte)data[x][y][z];
}
}
}
schematic.put("Blocks", new ByteArrayTag("Blocks", blocks));
// Current data is not supported
byte[] data = new byte[xs * ys * zs];
schematic.put("Data", new ByteArrayTag("Data", data));
// These are not stored either
schematic.put("Entities", new ListTag("Entities", CompoundTag.class, new ArrayList<Tag>()));
schematic.put("TileEntities", new ListTag("TileEntities", CompoundTag.class, new ArrayList<Tag>()));
// Build and output
CompoundTag schematicTag = new CompoundTag("Schematic", schematic);
NBTOutputStream stream = new NBTOutputStream(new FileOutputStream(path));
stream.writeTag(schematicTag);
stream.close();
}
/**
* Load a .schematic file into a clipboard.
*
* @param path
* @param origin
* @return
* @throws SchematicException
* @throws IOException
*/
public static RegionClipboard loadSchematic(String path, Point<Integer> origin)
throws SchematicException, IOException {
FileInputStream stream = new FileInputStream(path);
NBTInputStream nbtStream = new NBTInputStream(stream);
CompoundTag schematicTag = (CompoundTag)nbtStream.readTag();
if (!schematicTag.getName().equals("Schematic")) {
throw new SchematicException("Tag \"Schematic\" does not exist or is not first");
}
Map<String,Tag> schematic = schematicTag.getValue();
if (!schematic.containsKey("Blocks")) {
throw new SchematicException("Schematic file is missing a \"Blocks\" tag");
}
short xs = (Short)getChildTag(schematic, "Width", ShortTag.class).getValue();
short zs = (Short)getChildTag(schematic, "Length", ShortTag.class).getValue();
short ys = (Short)getChildTag(schematic, "Height", ShortTag.class).getValue();
String materials = (String)getChildTag(schematic, "Materials", StringTag.class).getValue();
if (!materials.equals("Alpha")) {
throw new SchematicException("Schematic file is not an Alpha schematic");
}
byte[] blocks = (byte[])getChildTag(schematic, "Blocks", ByteArrayTag.class).getValue();
Point<Integer> min = new Point<Integer>(
origin.getX(),
origin.getY(),
origin.getZ()
);
Point<Integer> max = new Point<Integer>(
origin.getX() + xs - 1,
origin.getY() + ys - 1,
origin.getZ() + zs - 1
);
RegionClipboard clipboard = new RegionClipboard(min, max, origin);
for (int x = 0; x < xs; x++) {
for (int y = 0; y < ys; y++) {
for (int z = 0; z < zs; z++) {
int index = y * xs * zs + z * xs + x;
clipboard.data[x][y][z] = blocks[index];
}
}
}
return clipboard;
}
private static Tag getChildTag(Map<String,Tag> items, String key, Class expected)
throws SchematicException {
if (!items.containsKey(key)) {
throw new SchematicException("Schematic file is missing a \"" + key + "\" tag");
}
Tag tag = items.get(key);
if (!expected.isInstance(tag)) {
throw new SchematicException(
key + " tag is not of tag type " + expected.getName());
}
return tag;
}
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}