/*
* 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.extension.factory;
import com.sk89q.worldedit.*;
import com.sk89q.worldedit.blocks.*;
import com.sk89q.worldedit.blocks.metadata.MobType;
import com.sk89q.worldedit.entity.Player;
import com.sk89q.worldedit.extension.input.DisallowedUsageException;
import com.sk89q.worldedit.extension.input.InputParseException;
import com.sk89q.worldedit.extension.input.NoMatchException;
import com.sk89q.worldedit.extension.input.ParserContext;
import com.sk89q.worldedit.extension.platform.Actor;
import com.sk89q.worldedit.internal.registry.InputParser;
import com.sk89q.worldedit.world.World;
/**
* Parses block input strings.
*/
class DefaultBlockParser extends InputParser<BaseBlock> {
protected DefaultBlockParser(WorldEdit worldEdit) {
super(worldEdit);
}
private static BaseBlock getBlockInHand(Actor actor) throws InputParseException {
if (actor instanceof Player) {
try {
return ((Player) actor).getBlockInHand();
} catch (NotABlockException e) {
throw new InputParseException("You're not holding a block!");
} catch (WorldEditException e) {
throw new InputParseException("Unknown error occurred: " + e.getMessage(), e);
}
} else {
throw new InputParseException("The user is not a player!");
}
}
@Override
public BaseBlock parseFromInput(String input, ParserContext context) throws InputParseException {
// TODO: Rewrite this entire method to use BaseBlocks and ignore BlockType, as well as to properly handle mod:name IDs
BlockType blockType;
input = input.replace("_", " ");
input = input.replace(";", "|");
String[] blockAndExtraData = input.split("\\|");
String[] blockLocator = blockAndExtraData[0].split(":", 3);
String[] typeAndData;
switch (blockLocator.length) {
case 3:
typeAndData = new String[] {
blockLocator[0] + ":" + blockLocator[1],
blockLocator[2] };
break;
default:
typeAndData = blockLocator;
}
String testId = typeAndData[0];
int blockId = -1;
int data = -1;
boolean parseDataValue = true;
if ("hand".equalsIgnoreCase(testId)) {
// Get the block type from the item in the user's hand.
final BaseBlock blockInHand = getBlockInHand(context.requireActor());
if (blockInHand.getClass() != BaseBlock.class) {
return blockInHand;
}
blockId = blockInHand.getId();
blockType = BlockType.fromID(blockId);
data = blockInHand.getData();
} else if ("pos1".equalsIgnoreCase(testId)) {
// Get the block type from the "primary position"
final World world = context.requireWorld();
final BlockVector primaryPosition;
try {
primaryPosition = context.requireSession().getRegionSelector(world).getPrimaryPosition();
} catch (IncompleteRegionException e) {
throw new InputParseException("Your selection is not complete.");
}
final BaseBlock blockInHand = world.getBlock(primaryPosition);
if (blockInHand.getClass() != BaseBlock.class) {
return blockInHand;
}
blockId = blockInHand.getId();
blockType = BlockType.fromID(blockId);
data = blockInHand.getData();
} else {
// Attempt to parse the item ID or otherwise resolve an item/block
// name to its numeric ID
try {
blockId = Integer.parseInt(testId);
blockType = BlockType.fromID(blockId);
} catch (NumberFormatException e) {
blockType = BlockType.lookup(testId);
if (blockType == null) {
int t = worldEdit.getServer().resolveItem(testId);
if (t > 0) {
blockType = BlockType.fromID(t); // Could be null
blockId = t;
} else if (blockLocator.length == 2) { // Block IDs in MC 1.7 and above use mod:name
t = worldEdit.getServer().resolveItem(blockAndExtraData[0]);
if (t > 0) {
blockType = BlockType.fromID(t); // Could be null
blockId = t;
typeAndData = new String[] { blockAndExtraData[0] };
testId = blockAndExtraData[0];
}
}
}
}
if (blockId == -1 && blockType == null) {
// Maybe it's a cloth
ClothColor col = ClothColor.lookup(testId);
if (col == null) {
throw new NoMatchException("Can't figure out what block '" + input + "' refers to");
}
blockType = BlockType.CLOTH;
data = col.getID();
// Prevent overriding the data value
parseDataValue = false;
}
// Read block ID
if (blockId == -1) {
blockId = blockType.getID();
}
if (!context.requireWorld().isValidBlockType(blockId)) {
throw new NoMatchException("Does not match a valid block type: '" + input + "'");
}
}
if (!context.isPreferringWildcard() && data == -1) {
// No wildcards allowed => eliminate them.
data = 0;
}
if (parseDataValue) { // Block data not yet detected
// Parse the block data (optional)
try {
if (typeAndData.length > 1 && !typeAndData[1].isEmpty()) {
data = Integer.parseInt(typeAndData[1]);
}
if (data > 15) {
throw new NoMatchException("Invalid data value '" + typeAndData[1] + "'");
}
if (data < 0 && (context.isRestricted() || data != -1)) {
data = 0;
}
} catch (NumberFormatException e) {
if (blockType == null) {
throw new NoMatchException("Unknown data value '" + typeAndData[1] + "'");
}
switch (blockType) {
case CLOTH:
case STAINED_CLAY:
case CARPET:
ClothColor col = ClothColor.lookup(typeAndData[1]);
if (col == null) {
throw new NoMatchException("Unknown wool color '" + typeAndData[1] + "'");
}
data = col.getID();
break;
case STEP:
case DOUBLE_STEP:
BlockType dataType = BlockType.lookup(typeAndData[1]);
if (dataType == null) {
throw new NoMatchException("Unknown step type '" + typeAndData[1] + "'");
}
switch (dataType) {
case STONE:
data = 0;
break;
case SANDSTONE:
data = 1;
break;
case WOOD:
data = 2;
break;
case COBBLESTONE:
data = 3;
break;
case BRICK:
data = 4;
break;
case STONE_BRICK:
data = 5;
break;
case NETHER_BRICK:
data = 6;
break;
case QUARTZ_BLOCK:
data = 7;
break;
default:
throw new NoMatchException("Invalid step type '" + typeAndData[1] + "'");
}
break;
default:
throw new NoMatchException("Unknown data value '" + typeAndData[1] + "'");
}
}
}
// Check if the item is allowed
Actor actor = context.requireActor();
if (context.isRestricted() && actor != null && !actor.hasPermission("worldedit.anyblock")
&& worldEdit.getConfiguration().disallowedBlocks.contains(blockId)) {
throw new DisallowedUsageException("You are not allowed to use '" + input + "'");
}
if (blockType == null) {
return new BaseBlock(blockId, data);
}
switch (blockType) {
case SIGN_POST:
case WALL_SIGN:
// Allow special sign text syntax
String[] text = new String[4];
text[0] = blockAndExtraData.length > 1 ? blockAndExtraData[1] : "";
text[1] = blockAndExtraData.length > 2 ? blockAndExtraData[2] : "";
text[2] = blockAndExtraData.length > 3 ? blockAndExtraData[3] : "";
text[3] = blockAndExtraData.length > 4 ? blockAndExtraData[4] : "";
return new SignBlock(blockType.getID(), data, text);
case MOB_SPAWNER:
// Allow setting mob spawn type
if (blockAndExtraData.length > 1) {
String mobName = blockAndExtraData[1];
for (MobType mobType : MobType.values()) {
if (mobType.getName().toLowerCase().equals(mobName.toLowerCase())) {
mobName = mobType.getName();
break;
}
}
if (!worldEdit.getServer().isValidMobType(mobName)) {
throw new NoMatchException("Unknown mob type '" + mobName + "'");
}
return new MobSpawnerBlock(data, mobName);
} else {
return new MobSpawnerBlock(data, MobType.PIG.getName());
}
case NOTE_BLOCK:
// Allow setting note
if (blockAndExtraData.length <= 1) {
return new NoteBlock(data, (byte) 0);
}
byte note = Byte.parseByte(blockAndExtraData[1]);
if (note < 0 || note > 24) {
throw new InputParseException("Out of range note value: '" + blockAndExtraData[1] + "'");
}
return new NoteBlock(data, note);
case HEAD:
// allow setting type/player/rotation
if (blockAndExtraData.length <= 1) {
return new SkullBlock(data);
}
byte rot = 0;
String type = "";
try {
rot = Byte.parseByte(blockAndExtraData[1]);
} catch (NumberFormatException e) {
type = blockAndExtraData[1];
if (blockAndExtraData.length > 2) {
try {
rot = Byte.parseByte(blockAndExtraData[2]);
} catch (NumberFormatException e2) {
throw new InputParseException("Second part of skull metadata should be a number.");
}
}
}
byte skullType = 0;
// type is either the mob type or the player name
// sorry for the four minecraft accounts named "skeleton", "wither", "zombie", or "creeper"
if (!type.isEmpty()) {
if (type.equalsIgnoreCase("skeleton")) skullType = 0;
else if (type.equalsIgnoreCase("wither")) skullType = 1;
else if (type.equalsIgnoreCase("zombie")) skullType = 2;
else if (type.equalsIgnoreCase("creeper")) skullType = 4;
else skullType = 3;
}
if (skullType == 3) {
return new SkullBlock(data, rot, type.replace(" ", "_")); // valid MC usernames
} else {
return new SkullBlock(data, skullType, rot);
}
default:
return new BaseBlock(blockId, data);
}
}
}