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Added preliminary JavaScript scripting support. Currently it can be used to do routines such as forest creation but it cannot make hooks or do anything fancy.

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This commit is contained in:
sk89q 2010-10-02 01:21:48 -07:00
parent da021f8519
commit c8054b95fe
5 changed files with 250 additions and 4 deletions
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3
manifest.mf Normal file
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@ -0,0 +1,3 @@
Manifest-Version: 1.0
Class-Path: js.jar

53
src/EditScriptContext.java Normal file
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@ -0,0 +1,53 @@
// $Id$
/*
* 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/>.
*/
/**
*
* @author sk89q
*/
public class EditScriptContext {
public EditScriptPlayer player;
/**
* Constructs the context. A player object has to be passed.
*
* @param player
*/
public EditScriptContext(EditScriptPlayer player) {
this.player = player;
}
/**
* Prints a message to the player.
*
* @param msg
*/
public void print(String msg) {
player.print(msg);
}
/**
* Prints an error message to the player.
*
* @param msg
*/
public void error(String msg) {
player.error(msg);
}
}

49
src/EditScriptMinecraftContext.java Normal file
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@ -0,0 +1,49 @@
// $Id$
/*
* 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/>.
*/
/**
*
* @author Albert
*/
public class EditScriptMinecraftContext {
/**
* Sets the block at position x, y, z with a block type.
*
* @param x
* @param y
* @param z
* @param blockType
* @return
*/
public boolean setBlock(int x, int y, int z, int blockType) {
return etc.getMCServer().e.d(x, y, z, blockType);
}
/**
* Gets the block type at a position x, y, z.
*
* @param x
* @param y
* @param z
* @return
*/
public int getBlock(int x, int y, int z) {
return etc.getMCServer().e.a(x, y, z);
}
}

72
src/EditScriptPlayer.java Normal file
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@ -0,0 +1,72 @@
// $Id$
/*
* 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/>.
*/
/**
*
* @author Albert
*/
public class EditScriptPlayer {
private Player player;
public String name;
public double pitch;
public double yaw;
public double x;
public double y;
public double z;
public int blockX;
public int blockY;
public int blockZ;
/**
* Prints a message to the player.
*
* @param msg
*/
public void print(String msg) {
player.sendMessage(msg);
}
/**
* Prints an error message to the player.
*
* @param msg
*/
public void error(String msg) {
player.sendMessage(Colors.Rose + msg);
}
/**
* Constructs the player instance.
*
* @param player
*/
public EditScriptPlayer(Player player) {
this.player = player;
name = player.getName();
pitch = player.getPitch();
yaw = player.getRotation();
x = player.getX();
y = player.getY();
z = player.getZ();
blockX = (int)Math.floor(player.getX());
blockY = (int)Math.floor(player.getY());
blockZ = (int)Math.floor(player.getZ());
}
}

77
src/WorldEdit.java
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@ -21,6 +21,8 @@
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.Map;
import java.io.*;
import org.mozilla.javascript.*;
/**
*
@ -42,6 +44,7 @@ public WorldEdit() {
commands.put("/editoverlay", "<ID> - Overlay the area one layer");
commands.put("/removeabove", "<Size> - Remove blocks above head");
commands.put("/editfill", "<ID> <Radius> <Depth> - Fill a hole");
commands.put("/editscript", "<Filename> [Args...] - Run an editscript");
}
/**
@ -190,16 +193,16 @@ private boolean handleEditCommand(Player player, String[] split)
// Set edit position #1
if (split[0].equalsIgnoreCase("/editpos1")) {
session.setPos1((int)Math.floor(player.getX()),
(int)Math.floor(player.getY()),
(int)Math.floor(player.getZ()));
(int)Math.floor(player.getY()),
(int)Math.floor(player.getZ()));
player.sendMessage(Colors.LightPurple + "First edit position set.");
return true;
// Set edit position #2
} else if (split[0].equalsIgnoreCase("/editpos2")) {
session.setPos2((int)Math.floor(player.getX()),
(int)Math.floor(player.getY()),
(int)Math.floor(player.getZ()));
(int)Math.floor(player.getY()),
(int)Math.floor(player.getZ()));
player.sendMessage(Colors.LightPurple + "Second edit position set.");
return true;
@ -246,6 +249,72 @@ private boolean handleEditCommand(Player player, String[] split)
player.sendMessage(Colors.LightPurple + affected + " block(s) have been removed.");
return true;
// Run an editscript
} else if (split[0].equalsIgnoreCase("/editscript")) {
checkArgs(split, 1);
String filename = split[1].replace("\0", "") + ".js";
File dir = new File("editscripts");
File f = new File("editscripts", filename);
try {
String filePath = f.getCanonicalPath();
String dirPath = dir.getCanonicalPath();
if (!filePath.substring(0, dirPath.length()).equals(dirPath)) {
player.sendMessage(Colors.Rose + "Editscript file does not exist.");
} else {
// Read file
StringBuffer buffer = new StringBuffer();
FileInputStream stream = new FileInputStream(f);
BufferedReader in = new BufferedReader(new InputStreamReader(stream, "UTF-8"));
int c;
while ((c = in.read()) > -1) {
buffer.append((char)c);
}
in.close();
String code = buffer.toString();
// Evaluate
Context cx = Context.enter();
try {
ScriptableObject scope = cx.initStandardObjects();
// Add args
String[] args = new String[split.length - 2];
System.arraycopy(split, 2, args, 0, split.length - 2);
ScriptableObject.putProperty(scope, "args",
Context.javaToJS(args, scope));
// Add context
EditScriptPlayer scriptPlayer = new EditScriptPlayer(player);
EditScriptContext context = new EditScriptContext(
scriptPlayer);
ScriptableObject.putProperty(scope, "context",
Context.javaToJS(context, scope));
ScriptableObject.putProperty(scope, "player",
Context.javaToJS(scriptPlayer, scope));
// Add Minecraft context
EditScriptMinecraftContext minecraft = new EditScriptMinecraftContext();
ScriptableObject.putProperty(scope, "minecraft",
Context.javaToJS(minecraft, scope));
cx.evaluateString(scope, code, filename, 1, null);
player.sendMessage(Colors.LightPurple + filename + " executed successfully.");
} catch (RhinoException re) {
player.sendMessage(Colors.Rose + "JS error: " + re.getMessage());
re.printStackTrace();
} finally {
Context.exit();
}
return true;
}
} catch (IOException e) {
player.sendMessage(Colors.Rose + "Editscript could not read or it does not exist.");
}
return true;
}
int lowerX = session.getLowerX();