Add support for entities with .schematic files.

This commit is contained in:
sk89q 2014-07-13 01:14:46 -07:00
parent a95ebde620
commit b751cbe1ee
2 changed files with 167 additions and 35 deletions

View File

@ -21,6 +21,8 @@ package com.sk89q.worldedit.extent.clipboard.io;
import com.sk89q.jnbt.ByteArrayTag;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.DoubleTag;
import com.sk89q.jnbt.FloatTag;
import com.sk89q.jnbt.IntTag;
import com.sk89q.jnbt.ListTag;
import com.sk89q.jnbt.NBTInputStream;
@ -31,12 +33,15 @@ import com.sk89q.worldedit.BlockVector;
import com.sk89q.worldedit.Vector;
import com.sk89q.worldedit.WorldEditException;
import com.sk89q.worldedit.blocks.BaseBlock;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.regions.CuboidRegion;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.util.Location;
import com.sk89q.worldedit.world.registry.WorldData;
import javax.annotation.Nullable;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
@ -79,29 +84,32 @@ public class SchematicReader implements ClipboardReader {
}
// Check type of Schematic
String materials = getChildTag(schematic, "Materials", StringTag.class).getValue();
String materials = requireTag(schematic, "Materials", StringTag.class).getValue();
if (!materials.equals("Alpha")) {
throw new IOException("Schematic file is not an Alpha schematic");
}
// Parse origin and region from WEOrigin and WEOffset
// ====================================================================
// Metadata
// ====================================================================
Vector origin;
Region region;
// Get information
short width = getChildTag(schematic, "Width", ShortTag.class).getValue();
short height = getChildTag(schematic, "Height", ShortTag.class).getValue();
short length = getChildTag(schematic, "Length", ShortTag.class).getValue();
short width = requireTag(schematic, "Width", ShortTag.class).getValue();
short height = requireTag(schematic, "Height", ShortTag.class).getValue();
short length = requireTag(schematic, "Length", ShortTag.class).getValue();
try {
int originX = getChildTag(schematic, "WEOriginX", IntTag.class).getValue();
int originY = getChildTag(schematic, "WEOriginY", IntTag.class).getValue();
int originZ = getChildTag(schematic, "WEOriginZ", IntTag.class).getValue();
int originX = requireTag(schematic, "WEOriginX", IntTag.class).getValue();
int originY = requireTag(schematic, "WEOriginY", IntTag.class).getValue();
int originZ = requireTag(schematic, "WEOriginZ", IntTag.class).getValue();
Vector min = new Vector(originX, originY, originZ);
int offsetX = getChildTag(schematic, "WEOffsetX", IntTag.class).getValue();
int offsetY = getChildTag(schematic, "WEOffsetY", IntTag.class).getValue();
int offsetZ = getChildTag(schematic, "WEOffsetZ", IntTag.class).getValue();
int offsetX = requireTag(schematic, "WEOffsetX", IntTag.class).getValue();
int offsetY = requireTag(schematic, "WEOffsetY", IntTag.class).getValue();
int offsetZ = requireTag(schematic, "WEOffsetZ", IntTag.class).getValue();
Vector offset = new Vector(offsetX, offsetY, offsetZ);
origin = min.subtract(offset);
@ -111,16 +119,20 @@ public class SchematicReader implements ClipboardReader {
region = new CuboidRegion(origin, origin.add(width, height, length).subtract(Vector.ONE));
}
// ====================================================================
// Blocks
// ====================================================================
// Get blocks
byte[] blockId = getChildTag(schematic, "Blocks", ByteArrayTag.class).getValue();
byte[] blockData = getChildTag(schematic, "Data", ByteArrayTag.class).getValue();
byte[] blockId = requireTag(schematic, "Blocks", ByteArrayTag.class).getValue();
byte[] blockData = requireTag(schematic, "Data", ByteArrayTag.class).getValue();
byte[] addId = new byte[0];
short[] blocks = new short[blockId.length]; // Have to later combine IDs
// We support 4096 block IDs using the same method as vanilla Minecraft, where
// the highest 4 bits are stored in a separate byte array.
if (schematic.containsKey("AddBlocks")) {
addId = getChildTag(schematic, "AddBlocks", ByteArrayTag.class).getValue();
addId = requireTag(schematic, "AddBlocks", ByteArrayTag.class).getValue();
}
// Combine the AddBlocks data with the first 8-bit block ID
@ -137,7 +149,7 @@ public class SchematicReader implements ClipboardReader {
}
// Need to pull out tile entities
List<Tag> tileEntities = getChildTag(schematic, "TileEntities", ListTag.class).getValue();
List<Tag> tileEntities = requireTag(schematic, "TileEntities", ListTag.class).getValue();
Map<BlockVector, Map<String, Tag>> tileEntitiesMap = new HashMap<BlockVector, Map<String, Tag>>();
for (Tag tag : tileEntities) {
@ -208,19 +220,64 @@ public class SchematicReader implements ClipboardReader {
}
}
// ====================================================================
// Entities
// ====================================================================
try {
List<Tag> entityTags = requireTag(schematic, "Entities", ListTag.class).getValue();
for (Tag tag : entityTags) {
if (tag instanceof CompoundTag) {
CompoundTag compound = (CompoundTag) tag;
StringTag idTag = getTag(compound, StringTag.class, "id");
Vector position = getVector(getTag(compound, ListTag.class, "Pos"));
if (idTag != null & position != null) {
Location location = readRotation(getTag(compound, ListTag.class, "Rotation"), new Location(clipboard, position));
BaseEntity state = new BaseEntity(idTag.getValue(), compound);
clipboard.createEntity(location, state);
}
}
}
} catch (IOException ignored) { // No entities? No problem
}
return clipboard;
}
/**
* Get child tag of a NBT structure.
*
* @param items The parent tag map
* @param key The name of the tag to get
* @param expected The expected type of the tag
* @return child tag casted to the expected type
* @throws IOException if the tag does not exist or the tag is not of the expected type
*/
private static <T extends Tag> T getChildTag(Map<String, Tag> items, String key, Class<T> expected) throws IOException {
@Nullable
private static Vector getVector(@Nullable ListTag tag) {
if (tag != null) {
List<Tag> tags = tag.getValue();
if (tags.size() == 3 && tags.get(0) instanceof DoubleTag) {
double x = ((DoubleTag) tags.get(0)).getValue();
double y = ((DoubleTag) tags.get(1)).getValue();
double z = ((DoubleTag) tags.get(2)).getValue();
return new Vector(x, y, z);
}
}
return null;
}
@Nullable
private static Location readRotation(@Nullable ListTag tag, Location location) {
if (tag != null) {
List<Tag> tags = tag.getValue();
if (tags.size() == 2 && tags.get(0) instanceof FloatTag) {
float yaw = ((FloatTag) tags.get(0)).getValue();
float pitch = ((FloatTag) tags.get(1)).getValue();
location = location.setDirection(yaw, pitch);
}
}
return location;
}
private static <T extends Tag> T requireTag(Map<String, Tag> items, String key, Class<T> expected) throws IOException {
if (!items.containsKey(key)) {
throw new IOException("Schematic file is missing a \"" + key + "\" tag");
}
@ -233,4 +290,20 @@ public class SchematicReader implements ClipboardReader {
return expected.cast(tag);
}
@Nullable
private static <T extends Tag> T getTag(CompoundTag tag, Class<T> expected, String key) {
Map<String, Tag> items = tag.getValue();
if (!items.containsKey(key)) {
return null;
}
Tag test = items.get(key);
if (!expected.isInstance(test)) {
return null;
}
return expected.cast(test);
}
}

View File

@ -21,6 +21,8 @@ package com.sk89q.worldedit.extent.clipboard.io;
import com.sk89q.jnbt.ByteArrayTag;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.DoubleTag;
import com.sk89q.jnbt.FloatTag;
import com.sk89q.jnbt.IntTag;
import com.sk89q.jnbt.ListTag;
import com.sk89q.jnbt.NBTOutputStream;
@ -29,19 +31,23 @@ import com.sk89q.jnbt.StringTag;
import com.sk89q.jnbt.Tag;
import com.sk89q.worldedit.Vector;
import com.sk89q.worldedit.blocks.BaseBlock;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.entity.Entity;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.util.Location;
import com.sk89q.worldedit.world.registry.WorldData;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import static com.google.common.base.Preconditions.checkNotNull;
/**
/**
* Writes schematic files based that are compatible with MCEdit and other editors.
*/
public class SchematicWriter implements ClipboardWriter {
@ -79,6 +85,10 @@ public class SchematicWriter implements ClipboardWriter {
throw new IllegalArgumentException("Length of region too large for a .schematic");
}
// ====================================================================
// Metadata
// ====================================================================
HashMap<String, Tag> schematic = new HashMap<String, Tag>();
schematic.put("Width", new ShortTag("Width", (short) width));
schematic.put("Length", new ShortTag("Length", (short) length));
@ -91,11 +101,14 @@ public class SchematicWriter implements ClipboardWriter {
schematic.put("WEOffsetY", new IntTag("WEOffsetY", offset.getBlockY()));
schematic.put("WEOffsetZ", new IntTag("WEOffsetZ", offset.getBlockZ()));
// Copy
// ====================================================================
// Block handling
// ====================================================================
byte[] blocks = new byte[width * height * length];
byte[] addBlocks = null;
byte[] blockData = new byte[width * height * length];
ArrayList<Tag> tileEntities = new ArrayList<Tag>();
List<Tag> tileEntities = new ArrayList<Tag>();
for (Vector point : region) {
Vector relative = point.subtract(min);
@ -140,20 +153,66 @@ public class SchematicWriter implements ClipboardWriter {
schematic.put("Blocks", new ByteArrayTag("Blocks", blocks));
schematic.put("Data", new ByteArrayTag("Data", blockData));
schematic.put("Entities", new ListTag("Entities", CompoundTag.class, new ArrayList<Tag>()));
schematic.put("TileEntities", new ListTag("TileEntities", CompoundTag.class, tileEntities));
if (addBlocks != null) {
schematic.put("AddBlocks", new ByteArrayTag("AddBlocks", addBlocks));
}
// Build and output
// ====================================================================
// Entities
// ====================================================================
List<Tag> entities = new ArrayList<Tag>();
for (Entity entity : clipboard.getEntities()) {
BaseEntity state = entity.getState();
if (state != null) {
Map<String, Tag> values = new HashMap<String, Tag>();
// Put NBT provided data
CompoundTag rawTag = state.getNbtData();
if (rawTag != null) {
values.putAll(rawTag.getValue());
}
// Store our location data, overwriting any
values.put("id", new StringTag("id", state.getTypeId()));
values.put("Pos", writeVector(entity.getLocation().toVector(), "Pos"));
values.put("Rotation", writeRotation(entity.getLocation(), "Rotation"));
CompoundTag entityTag = new CompoundTag("Entity", values);
entities.add(entityTag);
}
}
schematic.put("Entities", new ListTag("Entities", CompoundTag.class, entities));
// ====================================================================
// Output
// ====================================================================
CompoundTag schematicTag = new CompoundTag("Schematic", schematic);
outputStream.writeTag(schematicTag);
}
private Tag writeVector(Vector vector, String name) {
List<DoubleTag> list = new ArrayList<DoubleTag>();
list.add(new DoubleTag("", vector.getX()));
list.add(new DoubleTag("", vector.getY()));
list.add(new DoubleTag("", vector.getZ()));
return new ListTag(name, DoubleTag.class, list);
}
private Tag writeRotation(Location location, String name) {
List<FloatTag> list = new ArrayList<FloatTag>();
list.add(new FloatTag("", location.getYaw()));
list.add(new FloatTag("", location.getPitch()));
return new ListTag(name, FloatTag.class, list);
}
@Override
public void close() throws IOException {
outputStream.close();
}
}
}