fix(informer): 🥅 catch and report when objects are missing

lib/plugins/informer.js

@@ -7,7 +7,7 @@ function block(pos) {
     const block = pos ? bot.blockAt(v(pos)) : bot.blockAtCursor()
     console.log(block, block && block.getProperties())
     if (!block) {
-        cfg.quiet || bot.chat("empty")
+        cfg.quiet || bot.chat("empty block")
         return block
     }
     let info = [block.type, block.name]
@@ -21,6 +21,10 @@ function item(
 ) {
     const item = bot.inventory.slots[loc + bot.QUICK_BAR_START]
     console.log(item)
+    if (!item) {
+        cfg.quiet || bot.chat("no item")
+        return item
+    }
     let info = [item.type, item.name]
     if (item.metadata) info.push(item.metadata)
     cfg.quiet || bot.chat(info.join(": "))
@@ -31,6 +35,10 @@ function entity(name) {
         return name && entity.name ? entity.name == name : true
     })
     console.log(entity)
+    if (!entity) {
+        cfg.quiet || bot.chat("no entity")
+        return entity
+    }
     let info = [entity.type, entity.name]
     if (entity.metadata) info.push("len: " + entity.metadata.length)
     cfg.quiet || bot.chat(info.join("; "))