cleanup reactor controller

classic_tech/reactor.lua

@@ -4,18 +4,19 @@ if reac == nil then
     error "no reactor found!"
 end
 
+local function update()
+    local newstate = reac.getEnergyStored() < reac.getEnergyCapacity() * 0.8
+
+    local active = reac.getActive()
+
+    if newstate ~= active then
+        reac.setActive(newstate)
+    end
+end
+
 while true do
-    local cap = reac.getEnergyCapacity()
-
-    -- this happens when the chunk loads in for some reason. gotta check to prevent crash
-    if type(cap) == "number" then
-        local newstate = reac.getEnergyStored() < cap * 0.8
-
-        local active = reac.getActive()
-
-        if newstate ~= active then
-            reac.setActive(newstate)
-        end
+    if reac.mbIsAssembled() then
+        update()
     end
 
     sleep(5)