From 28b3dc04946620269c1788992e28b5adf1f9b814 Mon Sep 17 00:00:00 2001
From: Dystroyer8 <pascal.braun.pb@outlook.de>
Date: Thu, 16 Jul 2026 21:46:33 +0200
Subject: [PATCH] Persist and resume Create production state

---
 README.md                 | 12 ++++++++++++
 create_boiler_display.lua | 31 ++++++++++++++++++++++++++-----
 create_boiler_startup.lua | 10 ++++++++++
 3 files changed, 48 insertions(+), 5 deletions(-)
 create mode 100644 create_boiler_startup.lua

diff --git a/README.md b/README.md
index 71e8224..8e1d453 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,18 @@ Zwischen Ausgang und Clutch sitzt eine Redstone-Fackel als Fail-safe-Inverter: A
 bedeutet `PRODUCTION: RUNNING`; Ausgang `OFF`, Programmabbruch oder Computerneustart bedeutet
 `PRODUCTION: STOPPED`. Die Verbindung kann direkt oder ueber Create Redstone Links erfolgen.
 
+Der gewuenschte Zustand wird nach jeder Touch-Bedienung in `create_boiler_state.txt` gespeichert.
+Beim naechsten Programmstart wird er wiederhergestellt. Fuer automatischen Start nach einem
+Computer- oder Weltneustart kann das Startprogramm als `startup.lua` installiert werden:
+
+```lua
+wget https://git.peli-server.de/Dystroyer8/ATM10_CC_Codes/raw/branch/main/create_boiler_startup.lua startup.lua
+reboot
+```
+
+Waehrend der Computer aus ist, bleibt die Hardware durch den Fackel-Inverter abgeschaltet. Erst
+nach erfolgreichem Programmstart wird ein zuvor gespeicherter RUNNING-Zustand wieder aktiviert.
+
 Die Boiler werden nicht anhand wechselnder Peripheral-Namen, sondern fest ueber ihre
 Controller-Koordinaten `11266/64/10810`, `11260/64/10810` und `11252/64/10810` zugeordnet.
 Fehlt ein Reader, bleibt dadurch exakt die betroffene Boiler-Zeile auf `MISSING / NO READER`.
diff --git a/create_boiler_display.lua b/create_boiler_display.lua
index e9e5ca4..13dcf8d 100644
--- a/create_boiler_display.lua
+++ b/create_boiler_display.lua
@@ -5,6 +5,7 @@ local REFRESH_SECONDS = 1
 local MIN_WIDTH = 38
 local MIN_HEIGHT = 14
 local CLUTCH_OUTPUT_SIDE = "left"
+local STATE_FILE = "create_boiler_state.txt"
 
 local BOILERS = {
   { label = "BOILER 1", position = { 11266, 64, 10810 } },
@@ -14,6 +15,26 @@ local BOILERS = {
 
 local clutchButton = { x1 = 0, x2 = 0, y = 0 }
 
+local function loadProductionState()
+  if not fs.exists(STATE_FILE) then return false end
+  local handle = fs.open(STATE_FILE, "r")
+  if not handle then return false end
+  local saved = handle.readAll()
+  handle.close()
+  return saved == "RUNNING"
+end
+
+local function saveProductionState(running)
+  local handle = fs.open(STATE_FILE, "w")
+  if not handle then return false end
+  handle.write(running and "RUNNING" or "STOPPED")
+  handle.close()
+  return true
+end
+
+local productionRunning = loadProductionState()
+redstone.setOutput(CLUTCH_OUTPUT_SIDE, productionRunning)
+
 local monitor = peripheral.find("monitor")
 if not monitor then
   error("Kein Monitor gefunden. Monitor direkt oder per Wired Modem verbinden.", 0)
@@ -152,8 +173,7 @@ local function drawClutchButton(height)
   local width = monitor.getSize()
   -- With the external redstone-torch inverter, output ON means the clutch is
   -- unpowered and production runs. Output OFF is the fail-safe stopped state.
-  local running = redstone.getOutput(CLUTCH_OUTPUT_SIDE)
-  local label = running and " PRODUCTION: RUNNING " or " PRODUCTION: STOPPED "
+  local label = productionRunning and " PRODUCTION: RUNNING " or " PRODUCTION: STOPPED "
   local x = math.max(1, math.floor((width - #label) / 2) + 1)
   local y = math.max(13, height - 1)
 
@@ -165,15 +185,16 @@ local function drawClutchButton(height)
   monitor.setBackgroundColor(colors.black)
   monitor.write((" "):rep(width))
   monitor.setCursorPos(x, y)
-  monitor.setBackgroundColor(running and colors.lime or colors.red)
+  monitor.setBackgroundColor(productionRunning and colors.lime or colors.red)
   monitor.setTextColor(colors.black)
   monitor.write(label)
   monitor.setBackgroundColor(colors.black)
 end
 
 local function toggleProduction()
-  local running = redstone.getOutput(CLUTCH_OUTPUT_SIDE)
-  redstone.setOutput(CLUTCH_OUTPUT_SIDE, not running)
+  productionRunning = not productionRunning
+  redstone.setOutput(CLUTCH_OUTPUT_SIDE, productionRunning)
+  saveProductionState(productionRunning)
 end
 
 local function render()
diff --git a/create_boiler_startup.lua b/create_boiler_startup.lua
new file mode 100644
index 0000000..930dfdd
--- /dev/null
+++ b/create_boiler_startup.lua
@@ -0,0 +1,10 @@
+-- Install this file as startup.lua on the Create control computer.
+-- It resumes the persisted production state through create_boiler_display.lua.
+
+if not fs.exists("create_boiler_display.lua") then
+  printError("create_boiler_display.lua fehlt")
+  return
+end
+
+sleep(1)
+shell.run("create_boiler_display.lua")