compact atc_chains

compact_atc_chains.py

@@ -0,0 +1,90 @@
+#!/usr/bin/env python3
+
+from __future__ import annotations
+
+import argparse
+import json
+from pathlib import Path
+
+
+def crop_icon(icon: str | None) -> list[int | str] | None:
+    if not icon:
+        return None
+
+    lines = icon.split("\n")
+    xs: list[int] = []
+    ys: list[int] = []
+
+    for y, line in enumerate(lines):
+        for x, char in enumerate(line):
+            if char != " ":
+                xs.append(x)
+                ys.append(y)
+
+    if not xs:
+        return [0, 0, ""]
+
+    min_x = min(xs)
+    max_x = max(xs)
+    min_y = min(ys)
+    max_y = max(ys)
+    cropped_lines = [line[min_x : max_x + 1].rstrip() for line in lines[min_y : max_y + 1]]
+    return [min_x, min_y, "\n".join(cropped_lines)]
+
+
+def compact_chains(data: object) -> list[list[object]]:
+    if isinstance(data, dict):
+        chains = data.get("chains")
+    else:
+        chains = data
+
+    if not isinstance(chains, list):
+        raise ValueError("Input JSON does not contain a valid chains array")
+
+    compact: list[list[object]] = []
+
+    for chain in chains:
+        if not isinstance(chain, dict):
+            raise ValueError("Expected verbose chain objects as input")
+
+        items = chain.get("items")
+        if not isinstance(items, list) or not items:
+            continue
+
+        base_id = chain["base_id"]
+        base_icon = crop_icon(items[0].get("icon_nfp_16x16"))
+        compact_items = []
+
+        for item in items[1:]:
+            compact_items.append([
+                item["item_id"],
+                crop_icon(item.get("icon_nfp_16x16")),
+            ])
+
+        compact.append([base_id, base_icon, compact_items])
+
+    return compact
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser(
+        description="Rewrite atc_chains.json into a compact format used by compcount.lua."
+    )
+    parser.add_argument("path", nargs="?", default="atc_chains.json")
+    args = parser.parse_args()
+
+    path = Path(args.path)
+    original_text = path.read_text(encoding="utf-8")
+    data = json.loads(original_text)
+    compact = compact_chains(data)
+    compact_text = json.dumps(compact, separators=(",", ":"))
+    path.write_text(compact_text, encoding="utf-8")
+
+    print(f"Rewrote {path}")
+    print(f"Old size: {len(original_text.encode('utf-8'))} bytes")
+    print(f"New size: {len(compact_text.encode('utf-8'))} bytes")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

compcount.lua

@@ -79,23 +79,32 @@ local function ensureChainsLoaded()
     local data = textutils.unserializeJSON(file.readAll())
     file.close()
 
-    assert(type(data) == "table" and type(data.chains) == "table", "Invalid JSON data")
+    local chains = data
+
+    if type(data) == "table" and type(data.chains) == "table" then
+      chains = data.chains
+    end
+
+    assert(type(chains) == "table", "Invalid JSON data")
 
     chainItemsByBaseId = {}
     baseItemIds = {}
     itemById = {}
 
-    for _, chain in ipairs(data.chains) do
-      if not whitelistLookup or whitelistLookup[chain.base_id] then
+    for _, chain in ipairs(chains) do
+      local baseId = chain.base_id or chain[1]
+
+      if not whitelistLookup or whitelistLookup[baseId] then
         if not defaultBaseId then
-          defaultBaseId = chain.base_id
+          defaultBaseId = baseId
         end
 
-        baseItemIds[#baseItemIds + 1] = chain.base_id
+        baseItemIds[#baseItemIds + 1] = baseId
 
         local items = {}
         local itemCount = 0
 
+        if chain.base_id then
           for _, item in ipairs(chain.items or {}) do
             if item.stage == "item" then
               itemById[item.item_id] = {
@@ -111,8 +120,24 @@ local function ensureChainsLoaded()
               itemById[item.item_id] = items[itemCount]
             end
           end
+        else
+          itemById[baseId] = {
+            id = baseId,
+            icon_nfp = chain[2],
+          }
 
-        chainItemsByBaseId[chain.base_id] = items
+          for i = 1, #(chain[3] or {}) do
+            local compactItem = chain[3][i]
+            itemCount = itemCount + 1
+            items[itemCount] = {
+              id = compactItem[1],
+              icon_nfp = compactItem[2],
+            }
+            itemById[compactItem[1]] = items[itemCount]
+          end
+        end
+
+        chainItemsByBaseId[baseId] = items
       end
     end
   end
@@ -164,13 +189,49 @@ local function parseNfpImage(nfp)
   return image
 end
 
+local function parseIconData(iconData)
+  if type(iconData) == "string" then
+    return parseNfpImage(iconData)
+  end
+
+  if type(iconData) ~= "table" then
+    return nil
+  end
+
+  local offsetX = tonumber(iconData[1]) or 0
+  local offsetY = tonumber(iconData[2]) or 0
+  local croppedImage = parseNfpImage(iconData[3])
+
+  if not croppedImage then
+    return nil
+  end
+
+  if offsetX == 0 and offsetY == 0 then
+    return croppedImage
+  end
+
+  local image = {}
+
+  for y, row in pairs(croppedImage) do
+    local shiftedRow = {}
+
+    for x, value in pairs(row) do
+      shiftedRow[x + offsetX] = value
+    end
+
+    image[y + offsetY] = shiftedRow
+  end
+
+  return image
+end
+
 local function getItemIcon(item)
   if not item then
     return nil
   end
 
   if item.icon == nil then
-    item.icon = parseNfpImage(item.icon_nfp) or false
+    item.icon = parseIconData(item.icon_nfp) or false
     item.icon_nfp = nil
   end