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Updating Young Person's Guide to use SpigotMC and fixed missing/broken events helper calls.

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walterhiggins 2016-10-08 12:15:05 +01:00
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45
README.md
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@ -1,4 +1,5 @@
# Let's begin …
## ScriptCraft - Modding Minecraft with Javascript
[![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/walterhiggins/ScriptCraft?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
ScriptCraft lets you write Minecraft Mods using Javascript - a
@ -20,7 +21,7 @@ files in a directory.
then [Start Here][cda].
* Watch some [demos][ytpl] of what you can do with ScriptCraft.
This is a simple mod in a file called greet.js in the scriptcraft/plugins directory …
This is a simple mod in a file called greet.js in the scriptcraft/plugins directory:
```javascript
function greet( player ) {
@ -53,6 +54,7 @@ following Minecraft Server software:
[spigot]: http://www.spigotmc.org/
[gs]: http://www.glowstone.net/
[cm]: http://canarymod.net/
I recommend using SpigotMC because both CanaryMod and CraftBukkit are
no longer being actively developed. The ScriptCraft mod also lets you
@ -71,26 +73,24 @@ Minecraft.
[cottage]: https://github.com/walterhiggins/ScriptCraft/tree/master/src/main/js/plugins/drone/contrib/cottage.js
[temple]: https://github.com/walterhiggins/ScriptCraft/blob/master/src/main/js/plugins/drone/contrib/temple.js
[bukkit]: http://dl.bukkit.org/
[cm]: http://canarymod.net/
# Prerequisites
* You will need to have Java version 7 or later installed on your
machine. Check the version by typing `java -version` at a command
prompt.
* You will need to [install SpigotMC][spigot] on your
machine. SpigotMC is a customized version of Minecraft Server that
makes it easy to install plugins and customize Minecraft. You can
[download the SpigotMC server here.][spigotdl]
ScriptCraft is a Minecraft Server Mod which only works with Minecraft
for Personal computers (Windows, Mac and Linux). It does not work with
X-BOX, Playstation or WiiU versions of the game. You will need to have
Java version 7 or later installed. Check the version by typing `java
-version` at a command prompt.
# Installation
Before installing ScriptCraft you must first install SpigotMC which is a special version of Minecraft Server that makes it easy to customize the game.
Before installing ScriptCraft you must first install SpigotMC which is
a special version of Minecraft Server that makes it easy to customize
the game.
## Installing and Running SpigotMC
Follow these steps to download and install SpigotMC on your machine.
Follow these steps to download and install SpigotMC.
1. Download Spigot's [BuildTools.jar][spigotdl]
2. Save the BuildTools.jar file to a new directory called spigotmc.
@ -98,8 +98,13 @@ Follow these steps to download and install SpigotMC on your machine.
4. When the build is done, there will be a new file beginning with `spigot` and ending in `.jar` in the spigotmc directory. Run this file by typing `java -jar spigot-1.10.2.jar` (it might not be that exact name - you can list files in the directory by typing `dir` (Windows) or `ls` (Mac and Linux).
5. The server will start up then shut down very shortly afterwards. You'll need to edit a file called `eula.txt` - change `eula=false` to `eula=true` and save the file.
6. Run the `java -jar spigot-1.10.2.jar` command again - this time the server will start up. Shut it down by typing `stop` at the server prompt.
7. Download the [scriptcraft.jar][dl] plugin and save it to the `plugins` directory and restart the server by typing `java -jar spigot-1.10.2.jar`.
9. At the server prompt type `js 1 + 1` and hit enter. The result `2` should be displayed.
## Installing ScriptCraft
Follow these steps to download and install ScriptCraft.
1. Download the [scriptcraft.jar][dl] plugin and save it to the `plugins` directory and restart the server by typing `java -jar spigot-1.10.2.jar`.
2. At the server prompt type `js 1 + 1` and hit enter. The result `2` should be displayed.
Congratulations - you've just installed your Custom Minecraft Server and are ready to begin writing your first mod!
@ -116,7 +121,7 @@ username to the ops.txt file in your server directory.
Launch the server, then launch the Minecraft client and create a new
server connection. The IP address will be `localhost` . Once you've
connected to your server and have entered the game, look at a
ground-level block and type …
ground-level block and type:
/js up().box( blocks.wool.black, 4, 9, 1 )
@ -156,12 +161,12 @@ To get started writing your own mod, take a look at some of the
Because the SpigotMC API is open, all of the SpigotMC API is accessible
via javascript once the ScriptCraft plugin is loaded. There are a
couple of useful Java objects exposed via javascript in the
ScriptCraft plugin …
ScriptCraft plugin:
* `__plugin` – the ScriptCraft Plugin itself. This is a useful
starting point for accessing other SpigotMC objects. The `__plugin`
object is of type [org.bukkit.plugin.Plugin][api] and all
of its properties and methods are accessible. For example … `js
of its properties and methods are accessible. For example: `js
__plugin.name` returns the plugin's name
(JavaScript is more concise than the equivalent Java code:
`__plugin.getName()` ).
@ -192,7 +197,7 @@ If you would like to contribute source code and/or documentation changes please
ScriptCraft works with Bukkit Plugin and uses the Bukkit Configuration
API. On first loading, ScriptCraft will create a config.yml file in
the plugins/scriptcraft/ directory. This file looks like this …
the plugins/scriptcraft/ directory. This file looks like this:
extract-js:
plugins: true
@ -229,7 +234,7 @@ programs and how to do the same thing in JavaScript.
I highly recommend the series of [tutorials provided by CoderDojo Athenry][cda].
Developer Chris Cacciatore has created some interesting tools using ScriptCraft …
Developer Chris Cacciatore has created some interesting tools using ScriptCraft:
* [A wolf-bot][wb]
* [L-Systems (Large-scale fractal structures in Minecraft)][ls]

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docs/API-Reference.md
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170
docs/YoungPersonsGuideToProgrammingMinecraft.md
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@ -7,8 +7,8 @@ If you would like to make changes, change file src/docs/templates/ypgpm.md inste
# The Young Person's Guide to Programming in Minecraft
## Table of Contents
* [Introduction](#introduction)
* [Installation](#installation)
* [CanaryMod and Permissions](#canarymod-and-permissions)
* [Installing and Running SpigotMC](#installing-and-running-spigotmc)
* [Installing ScriptCraft](#installing-scriptcraft)
* [Configuring your Server (optional)](#configuring-your-server-optional)
* [Learning Javascript](#learning-javascript)
* [First Steps](#first-steps)
@ -43,7 +43,6 @@ If you would like to make changes, change file src/docs/templates/ypgpm.md inste
* [Keeping Score - Lookup tables in Javascript](#keeping-score---lookup-tables-in-javascript)
* [Counting block break events for each player](#counting-block-break-events-for-each-player)
* [Next Steps](#next-steps)
## Introduction
Minecraft is an open-ended 3D game where you can build and craft
@ -63,82 +62,40 @@ players connect to a Minecraft Server on the internet or locally
![Cottages created using ScriptCraft in MineCraft][img_cr]
## Installation
# Installation
CanaryMod is a version of the Minecraft server software which allows
easy addition of 'Mods' and extensions to Minecraft. ScriptCraft is a
'Mod' for use with CanaryMod. Adding Mods to Minecraft can be
difficult but CanaryMod makes it easy. Follow these steps to
Install ScriptCraft on your computer...
Before installing ScriptCraft you must first install SpigotMC which is
a special version of Minecraft Server that makes it easy to customize
the game.
1. [Download and install CanaryMod][dlcm] then follow the [CanaryMod
Installation Instructions][cmadmin].
## Installing and Running SpigotMC
2. Start the CanaryMod server, then once it has started up, stop it
by typing 'stop'. If you go to the CanaryMod folder (see step 1) you
should see some new files and subfolders.
Follow these steps to download and install SpigotMC.
3. [Download the latest version of the ScriptCraft Mod][sc-plugin]. Then copy the ScriptCraft.jar file to the
`plugins` folder (This folder won't be created until you run CanaryMod for the first time (see previous step).
1. Download Spigot's [BuildTools.jar][spigotdl]
2. Save the BuildTools.jar file to a new directory called spigotmc.
3. Open a terminal (Mac and Linux) or command prompt (windows) window and type `java -jar BuildTools.jar`. This will kick off a long series of commands to "build" SpigotMC.
4. When the build is done, there will be a new file beginning with `spigot` and ending in `.jar` in the spigotmc directory. Run this file by typing `java -jar spigot-1.10.2.jar` (it might not be that exact name - you can list files in the directory by typing `dir` (Windows) or `ls` (Mac and Linux).
5. The server will start up then shut down very shortly afterwards. You'll need to edit a file called `eula.txt` - change `eula=false` to `eula=true` and save the file.
6. Run the `java -jar spigot-1.10.2.jar` command again - this time the server will start up. Shut it down by typing `stop` at the server prompt.
4. Start up the CanaryMod server again (see [instructions for starting the server][cmadmin]).
## Installing ScriptCraft
5. In the CanaryMod command window type `op {your_username}` and hit
enter, replacing {your_username} with your own minecraft
username. This will give you `operator` access meaning you can perform
more commands than are normally available in Minecraft. You should
make yourself a server operator (Server operators have full privileges
for the server) permanently by editing the ops.txt file
and adding your username (one username per line).
Follow these steps to download and install ScriptCraft.
6. In the CanaryMod command window type `js 1 + 1` and hit enter. You should see `> 2` .
1. Download the [scriptcraft.jar][dl] plugin and save it to the `plugins` directory and restart the server by typing `java -jar spigot-1.10.2.jar`.
2. At the server prompt type `js 1 + 1` and hit enter. The result `2` should be displayed.
... Congratulations! You just installed your own Minecraft Server with
the ScriptCraft Mod and are now ready to begin programming in Minecraft.
Normally, Minecraft Mods are written in Java. This makes writing your
own extension or game rules difficult because you must first learn Java.
Java is different enough from Javascript. With the ScriptCraft plug-in
installed, you don't have to learn Java, you can extend and customize
Minecraft your way using Javascript. Javascript is easier to learn than
Java but it's also more flexible and powerful and is used for creating
interactive web sites and many other applications.
## CanaryMod and Permissions
CanaryMod works slightly differently to CraftBukkit in how it handles
permissions and groups. By default, there are 4 groups: visitors,
players, mods and admins. Each player who joins the game is added to the
'visitors' group. This group has no permissions by default so
visitors can't break or place blocks. If you would like to change this
behaviour then issue the following command at the console window:
groupmod permission add visitors canary.world.build
If you would like all admins to have scripting ability then issue the
following command:
groupmod permission add admins scriptcraft.evaluate
This will enable all admins on your server to issue javascript statements.
All operators can issue any command (including the `/js` command to evaluate javascript).
For more information on CanaryMod's Permissions and Groups see the following:
* [Permissions and Groups][cmPerms]
* [List of Permissions][cmPermsList]
[cmPerms]: https://github.com/walterhiggins/canarymod-admin-guide#permissions-and-groups-1
[cmPermsList]: https://github.com/walterhiggins/canarymod-admin-guide#list-of-permissions-1
Congratulations - you've just installed your Custom Minecraft Server and are ready to begin writing your first mod!
## Configuring your Server (optional)
Once you've installed CanaryMod, depending on your specific needs,
you might want to consider setting the following properties in the `server.cfg` or `config/worlds/<worldName>/<worldName>.cfg` files ...
Once you've installed SpigotMC, depending on your specific needs,
you might want to consider setting the following properties in the `server.properties` file:
# completely flat worlds are best for building from scratch
# bukkit/spigotmc
level-type=FLAT
# canarymod
world-type=FLAT
generate-structures=false
# creative mode
@ -673,19 +630,17 @@ compare the ages of your friends or siblings to your own age.
You can find out if you can Fly in minecraft by typing the following statement ...
/js self.getCapabilities().mayFly()
/js self.allowFlight
... the result will be `true` or `false` depending on whether you can
fly or not. You can turn on and off your ability to fly by setting
your `mayFly` property to `true` or `false`. Try it ...
your `allowFlight` property to `true` or `false`. Try it ...
/js self.capabilities.flying = true
/js self.updateCapabilities()
/js self.allowFlight = true;
... Now you can fly! Double-press the space bar key to start flying. To turn off flight ...
/js self.capabilities.flying = false;
/js self.updateCapabilities()
/js self.allowFlight = false;
... and you come crashing down to earth. This is just one example of
how `true` and `false` are used throughout ScriptCraft &ndash; these are
@ -694,55 +649,56 @@ Maths Professor at University College Cork. There are plenty more
examples of boolean values in Minecraft. You can find out if it's
raining in your minecraft world by typing the following statement ...
/js self.world.raining
/js self.world.hasStorm()
... The result of this statement will be either `false` (if it's not raining) or
`true` (if it *is* raining). If it's raining, you can make it stop raining typing the following command:
/js self.world.raining = false
/js self.world.setStorm(false)
... Similarly, to make it start raining you can issue the following command:
/js self.world.raining = true
/js self.world.setStorm( true )
### Booleans and JavaBeans
There are many *boolean* properties you can use to turn on or off
certain game behaviours. For example, the *raining* behavior is turned
on or off using the World's `raining` property. The World object's
properties and methods are [documented on the CanaryMod JavaDocs World
page][cmworld]. When browsing the CanaryMod JavaDoc pages, whenever
you see a method whose name begins with `is` such as `isRaining()` and
a companion method `setRaining()`, these methods are called *JavaBean*
methods - the *raining* property is a *JavaBean* property and there
certain game behaviours. For example, the *thundering* behavior is turned
on or off using the World's `thundering` property. The World object's
properties and methods are [documented on the SpigotMC JavaDocs World
page][spworld]. When browsing the SpigotMC JavaDoc pages, whenever
you see a method whose name begins with `is` such as `isThundering()` and
a companion method `setThundering()`, these methods are called *JavaBean*
methods - the *thundering* property is a *JavaBean* property and there
are two ways you can use JavaBean properties in Javascript. You can
*get* and *set* the property using the methods provided by Java. To
*get* the raining property you can call the JavaBean Method:
*get* the thundering property you can call the JavaBean Method:
/js self.world.isRaining()
/js self.world.isThundering()
... or you can get the property like this:
/js self.world.raining
/js self.world.thundering
To *set* the raining property, you can call the JavaBean method:
To *set* the thundering property, you can call the JavaBean method:
/js self.world.setRaining( true )
/js self.world.setThundering( true )
... or you can set the property like this:
/js self.world.raining = true
/js self.world.thundering = true
Whatever approach you use, the result will be the same.
[cmworld]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/net/canarymod/api/world/World.html
[spworld]: https://hub.spigotmc.org/javadocs/spigot/org/bukkit/World.html
### SIDENOTE
You may be wondering how to change other aspects of the Minecraft game - pretty much all
aspects of the game can be changed. Changes are made using what are
called `API` calls - these are calls to functions and methods in
Minecraft - you can read more about these on the [CanaryMod API
Reference][cmapi].
Minecraft - you can read more about these on the [SpigotMC API
Reference][spigotapi].
## ...and Again, and Again, and Again,...
@ -943,8 +899,10 @@ var utils = require('utils');
var players = utils.players();
var sounds = require('sounds');
utils.foreach( players, function( player ) {
sounds.catMeow( player ); // canarymod
sounds.entityCatAmbient( player ); // spigot 1.9
/* canarymod only
sounds.catMeow( player );
*/
} );
```
@ -1066,7 +1024,7 @@ This time no message should appear on your screen.
The `if` statement tests to see if something is `true` or `false` and
if `true` then the block of code between the curly braces ( `{` and
`}` ) is executed - but only if the condition is true. The condition
in the above example is `!self.onGround` (self is not on ground) which
in the above example is `!self.onGround` (self is _not_ on ground) which
will be `true` if you are currently flying or `false` if you aren't.
What if you wanted to display a message only if a condition is *not*
@ -1122,29 +1080,29 @@ following code sends a message to any player who breaks a block in the
game...
```javascript
function myBlockDestroyHook( event ){
function myBlockBreakHook( event ){
var breaker = event.player;
echo( breaker, 'You broke a block');
}
events.blockDestroy( myBlockDestroyHook );
events.blockBreak( myBlockBreakHook );
```
The `events.blockDestroy()` function is just one of the many `events` functions which can be used to *register* a function to be called whenever a particular type of event occurs. In the
above code the blockDestroy function takes as a parameter a function
The `events.blockBreak()` function is just one of the many `events` functions which can be used to *register* a function to be called whenever a particular type of event occurs. In the
above code the blockBreak function takes as a parameter a function
I want to be called when that event occurs. The function I want called
in turn takes 1 parameter. The `event` object has all the information
about the event which just occurred. I can tell who broke the block
and send a message to the player. The important thing to note is that
the `myBlockDestroyHook` function defined above will not be called until a player breaks a
the `myBlockBreakHook` function defined above will not be called until a player breaks a
block. Try it - save the above code in a new file in the
`scriptcraft/plugins` directory then type `/js refresh()` to reload
scriptcraft. Then break a block in the game and you should see the
message 'You broke a block'.
There are many types of events you can listen for in Minecraft. You can
browse [all possible event registration functions][cmevts2] in the API Reference.
browse [all possible event registration functions][spevts2] in the API Reference.
For custom events (events which aren't in the net.canarymod.hook tree)
For custom events (events which aren't in the org.bukkit.event tree)
just specify the fully qualified class name instead. E.g. ...
events.on ( net.yourdomain.events.YourEvent, function( event ) {
@ -1156,12 +1114,12 @@ just specify the fully qualified class name instead. E.g. ...
If you want an event handler to only execute once, you can remove the handler like this...
```javascript
function myBlockDestroyHook( evt ) {
function myBlockBreakHook( evt ) {
var breaker = evt.player;
echo( breaker, 'You broke a block');
this.unregister();
}
events.blockDestroy( myBlockDestroyHook );
events.blockBreak( myBlockBreakHook );
```
The `this.unregister();` statement will remove this function from the
@ -1173,11 +1131,11 @@ to stop listening for events.
To unregister a listener *outside* of the listener function...
```javascript
function myBlockDestroyHook( evt ){
function myBlockBreakHook( evt ){
var breaker = evt.player;
echo( breaker, 'You broke a block');
}
var myBlockBreakListener = events.blockDestroy( myBlockDestroyHook );
var myBlockBreakListener = events.blockBreak( myBlockBreakHook );
...
myBlockBreakListener.unregister();
```
@ -1297,7 +1255,7 @@ var breaks = {};
function initializeBreakCount( event ){
breaks[event.player.name] = 0;
}
events.connection( initializeBreakCount );
events.playerJoin( initializeBreakCount );
/*
every time a player breaks a block increase their block-break-count
@ -1307,7 +1265,7 @@ function incrementBreakCount( event ){
var breakCount = breaks[event.player.name];
echo( event.player, 'You broke ' + breakCount + ' blocks');
}
events.blockDestroy( incrementBreakCount );
events.blockBreak( incrementBreakCount );
```
With a little more work, you could turn this into a game where players
@ -1325,8 +1283,8 @@ minecraft, I recommend reading the accompanying [ScriptCraft API
reference][api] which covers all of the ScriptCraft functions, objects
and methods. I also recommend reading the source code to some of the
existing scriptcraft plugins, followed by
[Anatomy of a ScriptCraft Plug-in][ap]. The online [CanaryMod API
Reference][cmapi] provides lots of valuable information about the
[Anatomy of a ScriptCraft Plug-in][ap]. The online [SpigotMC API
Reference][spigotapi] provides lots of valuable information about the
different objects and methods available for use by ScriptCraft.
@ -1340,6 +1298,7 @@ different objects and methods available for use by ScriptCraft.
[np]: http://notepad-plus-plus.org/
[cbapi]: http://jd.bukkit.org/beta/apidocs/
[cmapi]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/
[spigotapi]: https://hub.spigotmc.org/javadocs/spigot/
[boole]: http://en.wikipedia.org/wiki/George_Boole
[soundapi]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/net/canarymod/api/world/effects/SoundEffect.Type.html
[ap]: Anatomy-of-a-Plugin.md
@ -1348,6 +1307,7 @@ different objects and methods available for use by ScriptCraft.
[bkevts]: http://jd.bukkit.org/dev/apidocs/org/bukkit/event/package-summary.html
[cmevts]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/net/canarymod/hook/package-summary.html
[cmevts2]: API-Reference.md#events-helper-module-canary-version
[spevts2]: API-Reference.md#events-helper-module-spigotmc-version
[img_echo_date]: img/ypgpm_echo_date.png
[img_3d_shapes]: img/ypgpm_3dshapes.jpg
[img_whd]: img/ypgpm_whd.jpg

10
src/docs/js/generateEventsHelper.js
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@ -3,6 +3,7 @@ args = Array.prototype.slice.call(args,1);
var File = java.io.File,
FileReader = java.io.FileReader,
FileInputStream = java.io.FileInputStream,
FRAMEWORK = args[0],
out = java.lang.System.out,
err = java.lang.System.err,
Modifier = java.lang.reflect.Modifier,
@ -12,7 +13,7 @@ var File = java.io.File,
entry = null;
var content = [
'/*********************',
'## Events Helper Module (' + args[0] + ' version)',
'## Events Helper Module (' + FRAMEWORK + ' version)',
'The Events helper module provides a suite of functions - one for each possible event.',
'For example, the events.' + args[2] + '() function is just a wrapper function which calls events.on(' + args[3] + ', callback, priority)',
'This module is a convenience wrapper for easily adding new event handling functions in Javascript. ',
@ -30,7 +31,7 @@ var content = [
'***/'
];
var canary = false;
if (args[0] == 'canary'){
if (FRAMEWORK == 'CanaryMod'){
canary = true;
}
@ -89,10 +90,9 @@ while ( ( entry = zis.nextEntry) != null) {
out.println(comment[i]);
}
out.println('exports.' + fname + ' = function(callback,priority){ ');
if (args[0] == 'canary'){
if (canary){
out.println(' return events.on(Packages.' + name + ',callback,priority);');
}
if (args[0] == 'bukkit'){
} else {
out.println(' return events.on(' + name + ',callback,priority);');
}
out.println('};');

166
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@ -1,4 +1,3 @@
## Introduction
Minecraft is an open-ended 3D game where you can build and craft
@ -18,82 +17,40 @@ players connect to a Minecraft Server on the internet or locally
![Cottages created using ScriptCraft in MineCraft][img_cr]
## Installation
# Installation
CanaryMod is a version of the Minecraft server software which allows
easy addition of 'Mods' and extensions to Minecraft. ScriptCraft is a
'Mod' for use with CanaryMod. Adding Mods to Minecraft can be
difficult but CanaryMod makes it easy. Follow these steps to
Install ScriptCraft on your computer...
Before installing ScriptCraft you must first install SpigotMC which is
a special version of Minecraft Server that makes it easy to customize
the game.
1. [Download and install CanaryMod][dlcm] then follow the [CanaryMod
Installation Instructions][cmadmin].
## Installing and Running SpigotMC
2. Start the CanaryMod server, then once it has started up, stop it
by typing 'stop'. If you go to the CanaryMod folder (see step 1) you
should see some new files and subfolders.
Follow these steps to download and install SpigotMC.
3. [Download the latest version of the ScriptCraft Mod][sc-plugin]. Then copy the ScriptCraft.jar file to the
`plugins` folder (This folder won't be created until you run CanaryMod for the first time (see previous step).
1. Download Spigot's [BuildTools.jar][spigotdl]
2. Save the BuildTools.jar file to a new directory called spigotmc.
3. Open a terminal (Mac and Linux) or command prompt (windows) window and type `java -jar BuildTools.jar`. This will kick off a long series of commands to "build" SpigotMC.
4. When the build is done, there will be a new file beginning with `spigot` and ending in `.jar` in the spigotmc directory. Run this file by typing `java -jar spigot-1.10.2.jar` (it might not be that exact name - you can list files in the directory by typing `dir` (Windows) or `ls` (Mac and Linux).
5. The server will start up then shut down very shortly afterwards. You'll need to edit a file called `eula.txt` - change `eula=false` to `eula=true` and save the file.
6. Run the `java -jar spigot-1.10.2.jar` command again - this time the server will start up. Shut it down by typing `stop` at the server prompt.
4. Start up the CanaryMod server again (see [instructions for starting the server][cmadmin]).
## Installing ScriptCraft
5. In the CanaryMod command window type `op {your_username}` and hit
enter, replacing {your_username} with your own minecraft
username. This will give you `operator` access meaning you can perform
more commands than are normally available in Minecraft. You should
make yourself a server operator (Server operators have full privileges
for the server) permanently by editing the ops.txt file
and adding your username (one username per line).
Follow these steps to download and install ScriptCraft.
6. In the CanaryMod command window type `js 1 + 1` and hit enter. You should see `> 2` .
1. Download the [scriptcraft.jar][dl] plugin and save it to the `plugins` directory and restart the server by typing `java -jar spigot-1.10.2.jar`.
2. At the server prompt type `js 1 + 1` and hit enter. The result `2` should be displayed.
... Congratulations! You just installed your own Minecraft Server with
the ScriptCraft Mod and are now ready to begin programming in Minecraft.
Normally, Minecraft Mods are written in Java. This makes writing your
own extension or game rules difficult because you must first learn Java.
Java is different enough from Javascript. With the ScriptCraft plug-in
installed, you don't have to learn Java, you can extend and customize
Minecraft your way using Javascript. Javascript is easier to learn than
Java but it's also more flexible and powerful and is used for creating
interactive web sites and many other applications.
## CanaryMod and Permissions
CanaryMod works slightly differently to CraftBukkit in how it handles
permissions and groups. By default, there are 4 groups: visitors,
players, mods and admins. Each player who joins the game is added to the
'visitors' group. This group has no permissions by default so
visitors can't break or place blocks. If you would like to change this
behaviour then issue the following command at the console window:
groupmod permission add visitors canary.world.build
If you would like all admins to have scripting ability then issue the
following command:
groupmod permission add admins scriptcraft.evaluate
This will enable all admins on your server to issue javascript statements.
All operators can issue any command (including the `/js` command to evaluate javascript).
For more information on CanaryMod's Permissions and Groups see the following:
* [Permissions and Groups][cmPerms]
* [List of Permissions][cmPermsList]
[cmPerms]: https://github.com/walterhiggins/canarymod-admin-guide#permissions-and-groups-1
[cmPermsList]: https://github.com/walterhiggins/canarymod-admin-guide#list-of-permissions-1
Congratulations - you've just installed your Custom Minecraft Server and are ready to begin writing your first mod!
## Configuring your Server (optional)
Once you've installed CanaryMod, depending on your specific needs,
you might want to consider setting the following properties in the `server.cfg` or `config/worlds/<worldName>/<worldName>.cfg` files ...
Once you've installed SpigotMC, depending on your specific needs,
you might want to consider setting the following properties in the `server.properties` file:
# completely flat worlds are best for building from scratch
# bukkit/spigotmc
level-type=FLAT
# canarymod
world-type=FLAT
generate-structures=false
# creative mode
@ -628,19 +585,17 @@ compare the ages of your friends or siblings to your own age.
You can find out if you can Fly in minecraft by typing the following statement ...
/js self.getCapabilities().mayFly()
/js self.allowFlight
... the result will be `true` or `false` depending on whether you can
fly or not. You can turn on and off your ability to fly by setting
your `mayFly` property to `true` or `false`. Try it ...
your `allowFlight` property to `true` or `false`. Try it ...
/js self.capabilities.flying = true
/js self.updateCapabilities()
/js self.allowFlight = true;
... Now you can fly! Double-press the space bar key to start flying. To turn off flight ...
/js self.capabilities.flying = false;
/js self.updateCapabilities()
/js self.allowFlight = false;
... and you come crashing down to earth. This is just one example of
how `true` and `false` are used throughout ScriptCraft &ndash; these are
@ -649,55 +604,56 @@ Maths Professor at University College Cork. There are plenty more
examples of boolean values in Minecraft. You can find out if it's
raining in your minecraft world by typing the following statement ...
/js self.world.raining
/js self.world.hasStorm()
... The result of this statement will be either `false` (if it's not raining) or
`true` (if it *is* raining). If it's raining, you can make it stop raining typing the following command:
/js self.world.raining = false
/js self.world.setStorm(false)
... Similarly, to make it start raining you can issue the following command:
/js self.world.raining = true
/js self.world.setStorm( true )
### Booleans and JavaBeans
There are many *boolean* properties you can use to turn on or off
certain game behaviours. For example, the *raining* behavior is turned
on or off using the World's `raining` property. The World object's
properties and methods are [documented on the CanaryMod JavaDocs World
page][cmworld]. When browsing the CanaryMod JavaDoc pages, whenever
you see a method whose name begins with `is` such as `isRaining()` and
a companion method `setRaining()`, these methods are called *JavaBean*
methods - the *raining* property is a *JavaBean* property and there
certain game behaviours. For example, the *thundering* behavior is turned
on or off using the World's `thundering` property. The World object's
properties and methods are [documented on the SpigotMC JavaDocs World
page][spworld]. When browsing the SpigotMC JavaDoc pages, whenever
you see a method whose name begins with `is` such as `isThundering()` and
a companion method `setThundering()`, these methods are called *JavaBean*
methods - the *thundering* property is a *JavaBean* property and there
are two ways you can use JavaBean properties in Javascript. You can
*get* and *set* the property using the methods provided by Java. To
*get* the raining property you can call the JavaBean Method:
*get* the thundering property you can call the JavaBean Method:
/js self.world.isRaining()
/js self.world.isThundering()
... or you can get the property like this:
/js self.world.raining
/js self.world.thundering
To *set* the raining property, you can call the JavaBean method:
To *set* the thundering property, you can call the JavaBean method:
/js self.world.setRaining( true )
/js self.world.setThundering( true )
... or you can set the property like this:
/js self.world.raining = true
/js self.world.thundering = true
Whatever approach you use, the result will be the same.
[cmworld]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/net/canarymod/api/world/World.html
[spworld]: https://hub.spigotmc.org/javadocs/spigot/org/bukkit/World.html
### SIDENOTE
You may be wondering how to change other aspects of the Minecraft game - pretty much all
aspects of the game can be changed. Changes are made using what are
called `API` calls - these are calls to functions and methods in
Minecraft - you can read more about these on the [CanaryMod API
Reference][cmapi].
Minecraft - you can read more about these on the [SpigotMC API
Reference][spigotapi].
## ...and Again, and Again, and Again,...
@ -898,8 +854,10 @@ var utils = require('utils');
var players = utils.players();
var sounds = require('sounds');
utils.foreach( players, function( player ) {
sounds.catMeow( player ); // canarymod
sounds.entityCatAmbient( player ); // spigot 1.9
/* canarymod only
sounds.catMeow( player );
*/
} );
```
@ -1021,7 +979,7 @@ This time no message should appear on your screen.
The `if` statement tests to see if something is `true` or `false` and
if `true` then the block of code between the curly braces ( `{` and
`}` ) is executed - but only if the condition is true. The condition
in the above example is `!self.onGround` (self is not on ground) which
in the above example is `!self.onGround` (self is _not_ on ground) which
will be `true` if you are currently flying or `false` if you aren't.
What if you wanted to display a message only if a condition is *not*
@ -1077,29 +1035,29 @@ following code sends a message to any player who breaks a block in the
game...
```javascript
function myBlockDestroyHook( event ){
function myBlockBreakHook( event ){
var breaker = event.player;
echo( breaker, 'You broke a block');
}
events.blockDestroy( myBlockDestroyHook );
events.blockBreak( myBlockBreakHook );
```
The `events.blockDestroy()` function is just one of the many `events` functions which can be used to *register* a function to be called whenever a particular type of event occurs. In the
above code the blockDestroy function takes as a parameter a function
The `events.blockBreak()` function is just one of the many `events` functions which can be used to *register* a function to be called whenever a particular type of event occurs. In the
above code the blockBreak function takes as a parameter a function
I want to be called when that event occurs. The function I want called
in turn takes 1 parameter. The `event` object has all the information
about the event which just occurred. I can tell who broke the block
and send a message to the player. The important thing to note is that
the `myBlockDestroyHook` function defined above will not be called until a player breaks a
the `myBlockBreakHook` function defined above will not be called until a player breaks a
block. Try it - save the above code in a new file in the
`scriptcraft/plugins` directory then type `/js refresh()` to reload
scriptcraft. Then break a block in the game and you should see the
message 'You broke a block'.
There are many types of events you can listen for in Minecraft. You can
browse [all possible event registration functions][cmevts2] in the API Reference.
browse [all possible event registration functions][spevts2] in the API Reference.
For custom events (events which aren't in the net.canarymod.hook tree)
For custom events (events which aren't in the org.bukkit.event tree)
just specify the fully qualified class name instead. E.g. ...
events.on ( net.yourdomain.events.YourEvent, function( event ) {
@ -1111,12 +1069,12 @@ just specify the fully qualified class name instead. E.g. ...
If you want an event handler to only execute once, you can remove the handler like this...
```javascript
function myBlockDestroyHook( evt ) {
function myBlockBreakHook( evt ) {
var breaker = evt.player;
echo( breaker, 'You broke a block');
this.unregister();
}
events.blockDestroy( myBlockDestroyHook );
events.blockBreak( myBlockBreakHook );
```
The `this.unregister();` statement will remove this function from the
@ -1128,11 +1086,11 @@ to stop listening for events.
To unregister a listener *outside* of the listener function...
```javascript
function myBlockDestroyHook( evt ){
function myBlockBreakHook( evt ){
var breaker = evt.player;
echo( breaker, 'You broke a block');
}
var myBlockBreakListener = events.blockDestroy( myBlockDestroyHook );
var myBlockBreakListener = events.blockBreak( myBlockBreakHook );
...
myBlockBreakListener.unregister();
```
@ -1252,7 +1210,7 @@ var breaks = {};
function initializeBreakCount( event ){
breaks[event.player.name] = 0;
}
events.connection( initializeBreakCount );
events.playerJoin( initializeBreakCount );
/*
every time a player breaks a block increase their block-break-count
@ -1262,7 +1220,7 @@ function incrementBreakCount( event ){
var breakCount = breaks[event.player.name];
echo( event.player, 'You broke ' + breakCount + ' blocks');
}
events.blockDestroy( incrementBreakCount );
events.blockBreak( incrementBreakCount );
```
With a little more work, you could turn this into a game where players
@ -1280,8 +1238,8 @@ minecraft, I recommend reading the accompanying [ScriptCraft API
reference][api] which covers all of the ScriptCraft functions, objects
and methods. I also recommend reading the source code to some of the
existing scriptcraft plugins, followed by
[Anatomy of a ScriptCraft Plug-in][ap]. The online [CanaryMod API
Reference][cmapi] provides lots of valuable information about the
[Anatomy of a ScriptCraft Plug-in][ap]. The online [SpigotMC API
Reference][spigotapi] provides lots of valuable information about the
different objects and methods available for use by ScriptCraft.
@ -1295,6 +1253,7 @@ different objects and methods available for use by ScriptCraft.
[np]: http://notepad-plus-plus.org/
[cbapi]: http://jd.bukkit.org/beta/apidocs/
[cmapi]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/
[spigotapi]: https://hub.spigotmc.org/javadocs/spigot/
[boole]: http://en.wikipedia.org/wiki/George_Boole
[soundapi]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/net/canarymod/api/world/effects/SoundEffect.Type.html
[ap]: Anatomy-of-a-Plugin.md
@ -1303,6 +1262,7 @@ different objects and methods available for use by ScriptCraft.
[bkevts]: http://jd.bukkit.org/dev/apidocs/org/bukkit/event/package-summary.html
[cmevts]: https://ci.visualillusionsent.net/job/CanaryLib/javadoc/net/canarymod/hook/package-summary.html
[cmevts2]: API-Reference.md#events-helper-module-canary-version
[spevts2]: API-Reference.md#events-helper-module-spigotmc-version
[img_echo_date]: img/ypgpm_echo_date.png
[img_3d_shapes]: img/ypgpm_3dshapes.jpg
[img_whd]: img/ypgpm_whd.jpg