Require input as part of all recipes

src/data/minecraft/recipes.json

@@ -1134,9 +1134,6 @@
         }, {
             "output": "Pressure Plate (wood)",
             "input": [[2, "Oak Wood Planks"]]
-        }, {
-            "output": "Pufferfish",
-            "tools": "Fishing Rod"
         }, {
             "output": "Pumpkin Pie",
             "input": ["Egg", "Pumpkin", "Sugar"]
@@ -1198,9 +1195,6 @@
             "output": "Redstone",
             "input": ["Redstone Ore", "{furnace fuel}"],
             "tools": "Furnace"
-        }, {
-            "output": "Redstone",
-            "tools": "Iron Pickaxe"
         }, {
             "output": [[9, "Redstone"]],
             "input": "Block of Redstone"

src/scripts/models/recipe_book_parser.coffee

@@ -79,8 +79,9 @@ module.exports.V1 = class V1
         output = @_parseItemList data.output, field:'output', canBeEmpty:false
         @_errorLocation = "recipe for #{output[0].name}"
 
-        data.input ?= []
+        if not data.input? then throw new Error "#{@_errorLocation} is missing input"
         data.tools ?= []
+
         input  = @_parseItemList data.input, field:'input', canBeEmpty:true
         tools  = @_parseItemList data.tools, field:'tools', canBeEmpty:true