From 6ea69796fb30b4044d053aa3f373d9d372d8fe8e Mon Sep 17 00:00:00 2001
From: Romain Beaumont <romain.rom1@gmail.com>
Date: Thu, 19 Nov 2015 23:06:52 +0100
Subject: [PATCH] add a check in block_place : only place a block if you are
 holding a block, fix #104

---
 package.json                  | 2 +-
 src/lib/plugins/placeBlock.js | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 8708eaf..eb330a6 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
   "dependencies": {
     "babel-runtime": "^5.4.4",
     "minecraft-data": "0.7.0",
-    "minecraft-protocol": "^0.16.0",
+    "minecraft-protocol": "0.16.0",
     "mkdirp": "0.5.1",
     "moment": "^2.10.6",
     "node-dir": "~0.1.9",
diff --git a/src/lib/plugins/placeBlock.js b/src/lib/plugins/placeBlock.js
index b4da784..603a41e 100644
--- a/src/lib/plugins/placeBlock.js
+++ b/src/lib/plugins/placeBlock.js
@@ -14,7 +14,7 @@ var materialToSound = {
 module.exports.player=function(player,serv)
 {
   player._client.on("block_place",({direction,heldItem,location} = {}) => {
-    if(direction==-1 || heldItem.blockId==-1) return;
+    if(direction==-1 || heldItem.blockId==-1 || !blocks[heldItem.blockId]) return;
     var referencePosition=new Vec3(location.x,location.y,location.z);
     var directionVector=directionToVector[direction];
     var placedPosition=referencePosition.plus(directionVector);