minecraft.js/lib/entity.js

Minecraft data serialization/deserialization and networking

var Vector3 = require(__dirname + '/vector3.js'),
    TagFormat = require(__dirname + '/tagFormat.js');

/** @constructor */
var Entity = module.exports = function(args) {
	if(typeof args != 'object') args = {};
	this.entityId = args.entityId;
	this.type = args.type;
	this.id = args.id;

	this.position = args.position || new Vector3(0.0, 0.0, 0.0);
	this.motion = args.motion || new Vector3(0.0, 0.0, 0.0);
	
	this.rotation = {};
	this.rotation.yaw = args.yaw || 0.0;
	this.rotation.pitch = args.pitch || 0.0;
	
	
	this.fallDistance = args.fallDistance || 0.0;
	this.fire = args.fire || 0;
	this.air = args.air || 200;
	this.onGround = args.onGround || true;
};

Entity.prototype.tagFormat = new TagFormat(
	'compound',
	[
		new TagFormat('string', 'id', 'id'),
		new TagFormat('list', 'Pos', 'pos', [
			new TagFormat('double', 'X', 'x'),
			new TagFormat('double', 'Y', 'y'),
			new TagFormat('double', 'Z', 'z')
		]),
		new TagFormat('list', 'Motion', 'motion', [
			new TagFormat('double', 'dX', 'x'),
			new TagFormat('double', 'dY', 'y'),
			new TagFormat('double', 'dZ', 'z')
		]),
		new TagFormat('list', 'Rotation', 'rotation', [
			new TagFormat('double', 'Yaw', 'yaw'),
			new TagFormat('double', 'Pitch', 'pitch')
		]),
		new TagFormat('float', 'FallDistance', 'fallDistance'),
		new TagFormat('short', 'Fire', 'fire'),
		new TagFormat('short', 'Air', 'air'),
		new TagFormat('byte', 'OnGround', 'onGround')
	]
);

Entity.prototype.toTag = function() {
	return this.tagFormat.encode(this);
};