support multiple stages for each level, resetting the machine between

README.md

@@ -4,6 +4,8 @@
 logic mostly like https://git.crispypin.cc/CrispyPin/marble
 
 ## todo
+- show level info in editor
+- comments
 - accessibility
   - background colour setting
   - hotkeys for everything
@@ -11,9 +13,7 @@ logic mostly like https://git.crispypin.cc/CrispyPin/marble
 - make direct power (comparator -> machine) work, (needs storing power direction in machine tiles)
 - cut selections, copy to system clipboard
 - timestamps in solutions and blueprints
-- multiple input/output sets
 - tooltips
-- show level info in editor
 - lock tile types for early levels to make it less overwhelming
 - display tool variant more clearly (it's not obvious there are more states)
 - option to use 8-bit marbles?
@@ -60,9 +60,11 @@ logic mostly like https://git.crispypin.cc/CrispyPin/marble
   "sortorder": 5,
   "name": "Zeroes",
   "description": "learn how to output data",
-  "init_board": null,
-  "inputs": [],
-  "outputs": [0, 0, 0, 0, 0, 0, 0, 0],
+  "init_board": "<optional, serialized board>",
+  "stages": [{
+    "input": [],
+    "output": [0, 0, 0, 0, 0, 0, 0, 0],
+  }]
 }
 ```
 ### solution