Merge pull request #920 from argonui/counters

Changed save function of counters for better performance

src/core/GenericCounter.ttslua

@@ -1,13 +1,15 @@
 local MIN_VALUE, MAX_VALUE = 0, 99
-val = 0
 
-function onSave() return JSON.encode(val) end
+function onDestroy()
+  updateSave()
+end
+
+function updateSave()
+  self.script_state = val
+end
 
 function onLoad(savedData)
-  if savedData and savedData ~= "" then
-    val = JSON.decode(savedData)
-  end
-
+  val = tonumber(savedData) or 0
   self.max_typed_number = MAX_VALUE
 
   local tokenType = self.getMemo()
@@ -51,6 +53,7 @@ function updateVal(newVal)
   if tonumber(newVal) then
     val = math.min(math.max(newVal, MIN_VALUE), MAX_VALUE)
     self.editButton({ index = 0, label = tostring(val) })
+    updateSave()
   end
 end
 
@@ -61,6 +64,7 @@ end
 function modifyValue(mod)
   val = math.min(math.max(val + tonumber(mod), MIN_VALUE), MAX_VALUE)
   self.editButton({ index = 0, label = tostring(val) })
+  updateSave()
 end
 
 function onNumberTyped(_, number)