walterhiggins

/*global require, events */
var blocks = require('blocks'),
    sounds = require('sounds');

function bounceOn___(event){
  var player = event.player;
  var bounce = 0.75;
  var location = player.location;
  // need to convert coordinates to integers
  var x = Math.floor(location.x);

walterhiggins

var Drone = require('drone');
var blocks = require('blocks');
function skyscraper( floors ) {
  var i = 0;
  if ( typeof floors == 'undefined' ) { 
    floors = 10; 
  }
  this.chkpt('skyscraper');
  for ( i = 0; i < floors; i++ ) {
    this          

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var sounds = require('sounds');
function howl(event){
  sounds.wolfHowl(event.block);
}
events.blockDestroy(howl);

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var inventory = require('inventory'),
    items = require('items'),
    utils = require('utils');
function giveCookie(player){
  inventory(player).add( items.cookie(1) )
}
utils.players(giveCookie);

walterhiggins

var teleport = require('teleport'),
    arrowsport = {},
    handler;


function onArrowHit( event ) {
  var projectile = event.projectile,
      shooter = projectile.owner,
      cmArrow = Packages.net.canarymod.api.entity.Arrow,
      cmPlayer = Packages.net.canarymod.api.entity.living.humanoid.Player,

walterhiggins

Problem

Nashorn has trouble casting JS arrays to native java arrays when invoking vararg methods.

I'm calling a Java method from JS. The java method uses variable arguments...

http://docs.visualillusionsent.net/CanaryLib/1.2.0/src-html/net/canarymod/api/inventory/helper/FireworkHelper.html#line.317

In my JS I construct an array variable and populate the array:

walterhiggins

A Beginner's Guide to Writing Minecraft Plugins: Errata

Introduction

This is list of errors and their corrections that were found after the book was published. This document is a work in progress. If you find additional mistakes in the book please email walter.higgins@gmail.com.

Chapter 7

Page 84, Listing 7.3

The following code is listed with no explanation of the === operator and how it differs from the == operator which is explained in Chapter 3 (Comparing numbers):

walterhiggins

/*
  testing a forgetful memoized promise: A promise, memoized which is forgotten after a given duration.
*/ 
var Q = require('q');
var _ = require('underscore');

function expensive( req ){
  var result = Q.defer();
  var msg = JSON.stringify(req);
  console.log(new Date() + ' about to do something expensive: ' + msg);

walterhiggins

Some notes on the ScriptCraft Workshop for CoderDojo@IBM

There were some very good ideas for improvements and additions. One attendee wondered if it was possible to populate buildings as they were built. I thought I'd already written a spawn module to do this but it turns out I hadn't. I've just added a spawn module to version 3.1.11 which is out today (21st Nov 2015). Get it here http://scriptcraftjs.org/download/latest/

The Drone now also has a spawn method so you can for example unleash a horde of zombies by combining the spawn(), movement and times() functions like this...

/js spawn('ZOMBIE').fwd().times(10)

walterhiggins

var lightning = require('lightning');
events.projectileHit( function(event) {
  if ( entities.arrow( event.projectile ) && 
       entities.player( event.projectile.owner ) ) {
    lightning( event.projectile );
  }
}