updated

coolant_driver.lua

@@ -1,12 +1,6 @@
 local maxValue = 100
 local minValue = 0
 
-local function configureReport(monitor)
-    local x,y = monitor.getCursorPos()
-    monitor.setCursorPos(x, y + 1)
-    monitor.clearLine()
-end
-
 local function getValue(reactor)
     return (reactor.getCoolantFilledPercentage() or 0) * 100
 end
@@ -32,7 +26,6 @@ end
 local function report(reactor, monitor)
         local value = getValue(reactor)
         local color = color(reactor)
-        configureReport(monitor)
         monitor.setBackgroundColor(color)
         monitor.write("Coolant: " .. value .. "%")
 end

main.lua

@@ -14,15 +14,19 @@ end
 local function runDisplay()
     monitor.clear()
     monitor.setTextScale(1)
-    monitor.setCursorPos(1, 1)
     while true do
+        monitor.setCursorPos(1, 1)
+
         local drivers = {
             { Label = "Temperature", driver = tempDriver },
             { Label = "Coolant", driver = coolantDriver },
         }
 
-        for _, item in ipairs(drivers) do
+        for i, item in ipairs(drivers) do
+            monitor.setCursorPos(1, i)
+            monitor.clearLine()
             item.driver.report(reactor, monitor)
+            monitor.setCursorPos(1, i + 1)
         end
 
         sleep(0.25)  -- Update every quarter second

temperature_driver.lua

@@ -3,12 +3,6 @@ local function getValue(reactor)
     return reactor.getTemperature() or 0
 end
 
-local function configureReport(monitor)
-    local x,y = monitor.getCursorPos()
-    monitor.setCursorPos(x, y + 1)
-    monitor.clearLine()
-end
-
 local function color(reactor)
     local temperature = getValue(reactor)
     return colors.black
@@ -22,7 +16,6 @@ end
 local function report(reactor, monitor)
         local value = getValue(reactor)
         local color = color(reactor)
-        configureReport(monitor)
         monitor.setBackgroundColor(color)
         monitor.write("Coolant: " .. value .. "%")
 end