Increase the batch size of the calcium carbide producing reaction wit…

…h the arc furnace

Also makes arc furnace into an appliance, which mitigates issues with attempting such a power-intensive recipe without a power grid

data/json/furniture_and_terrain/appliances.json

@@ -93,6 +93,28 @@
     "type": "vehicle_part",
     "variants": [ { "symbols": "6", "symbols_broken": "x" } ]
   },
+  {
+    "type": "vehicle_part",
+    "id": "ap_arc_furnace",
+    "name": { "str": "arc furnace" },
+    "looks_like": "f_arc_furnace",
+    "color": "blue",
+    "categories": [ "utility" ],
+    "description": "An arc furnace designed to burn a powdery mix of coke and limestone to create calcium carbide.  Plugged in and ready to go.",
+    "broken_color": "yellow_red",
+    "damage_modifier": 10,
+    "damage_reduction": { "all": 30 },
+    "durability": 80,
+    "flags": [ "OBSTACLE", "APPLIANCE" ],
+    "pseudo_tools": [ { "id": "fake_arc_furnace" } ],
+    "item": "arc_furnace",
+    "breaks_into": [
+      { "item": "scrap", "count": [ 2, 4 ] },
+      { "item": "steel_chunk", "count": [ 0, 3 ] },
+      { "item": "pipe", "count": [ 0, 4 ] }
+    ],
+    "variants": [ { "symbols": "U", "symbols_broken": "x" } ]
+  },
   {
     "type": "vehicle_part",
     "id": "ap_forge",

data/json/furniture_and_terrain/furniture-tools.json

@@ -454,6 +454,7 @@
     "required_str": -1,
     "max_volume": "200 L",
     "flags": [ "CONTAINER", "FIRE_CONTAINER", "PLACE_ITEM" ],
+    "examine_action": { "type": "appliance_convert", "furn_set": "f_null", "item": "arc_furnace" },
     "deconstruct": { "items": [ { "item": "metal_tank", "count": [ 1, 4 ] }, { "item": "pipe", "count": [ 2, 4 ] } ] },
     "bash": {
       "str_min": 18,

data/json/items/appliances.json

@@ -41,6 +41,19 @@
     "volume": "290 L",
     "weight": "77 kg"
   },
+  {
+    "type": "GENERIC",
+    "id": "arc_furnace",
+    "looks_like": "f_arc_furnace",
+    "symbol": "U",
+    "description": "An arc furnace designed to burn a powdery mix of coke and limestone to create calcium carbide.  Needs to be placed and plugged into a power source.",
+    "color": "blue",
+    "name": { "str": "disconnected arc furnace", "str_pl": "disconnected arc furnaces" },
+    "material": [ "budget_steel" ],
+    "longest_side": "200 cm",
+    "volume": "400 L",
+    "weight": "1024 kg"
+  },
   {
     "type": "GENERIC",
     "id": "drill_press",

data/json/recipes/recipe_medsandchemicals.json

@@ -2645,14 +2645,15 @@
     "//1": "multiple batches worth can be smelted and cooled at once, but grinding time dominates",
     "batch_time_factors": [ 25, 2 ],
     "//2": "some loss/waste, e.g. imperfect smelting; powder escaping",
-    "charges": 95,
+    "//2a": "Lower limit is based on a guesstimate about how much charge you need in the furnace for it to operate",
+    "charges": 95000,
     "book_learn": [ [ "textbook_chemistry", 4 ], [ "textbook_gaswarfare", 4 ], [ "atomic_survival", 3 ] ],
     "//3": "At least some knowledge on chemicals handling is required.",
     "proficiencies": [ { "proficiency": "prof_intro_chemistry" } ],
     "qualities": [ { "id": "FINE_GRIND", "level": 1 } ],
     "//4": "460kJ per mole @ 70% energy efficiency",
-    "tools": [ [ [ "fake_arc_furnace", 650 ] ] ],
-    "components": [ [ [ "cac2powder", 100 ] ] ]
+    "tools": [ [ [ "fake_arc_furnace", 650000 ] ] ],
+    "components": [ [ [ "cac2powder", 100000 ] ] ]
   },
   {
     "type": "recipe",