naive pymods compatibility

data-util.lua

@@ -1,6 +1,7 @@
 local data_util = {}
 
 data_util.titanium_plate = ""
+data_util.titanium_processing = ""
 
 if mods["FactorioExtended-Plus-Core"] then
   data_util.titanium_plate = "titanium-alloy"
@@ -8,6 +9,13 @@ else
   data_util.titanium_plate = "titanium-plate"
 end
 
+if mods["pyrawores"] then 
+  data_util.titanium_processing = "titanium-mk01"
+else
+  data_util.titanium_processing = "titanium-processing"
+end
+
+
 -- Remove an element of type t and name from data.raw
 function data_util.remove_raw(t, name)
   for i, elem in pairs(data.raw[t]) do
@@ -18,17 +26,34 @@ function data_util.remove_raw(t, name)
   end
 end
 
+function data_util.check_for_ingredient(recipe, name)
+    if recipe ~= nil and recipe.ingredients ~= nil then
+    log(serpent.dump(recipe))
+      for i, ingredient in pairs(recipe.ingredients) do
+        if ingredient.name == name then
+          return true
+        end
+      end
+    end
+    return false
+end
 
 --- Add a given quantity of titanium plates to a given recipe
 function data_util.add_titanium_ingredient(quantity, recipe)
   if recipe ~= nil and recipe.ingredients ~= nil then
+    if data_util.check_for_ingredient(recipe, data_util.titanium_plate) then
+      return
+    end
     table.insert(recipe.ingredients, {data_util.titanium_plate, quantity})
   end
 end
 
 --- Add titanium processing as a prerequisite to a given technology
 function data_util.add_titanium_prerequisite(technology)
-	table.insert(technology.prerequisites, "titanium-processing")
+  if mods["pyrawores"] then
+    return
+  end
+	table.insert(technology.prerequisites, data_util.titanium_processing)
 end
 
 --- Change all occurances of steel plates to titanium plates in a given recipe
@@ -43,6 +68,9 @@ end
 
 function data_util.replace_ingredient(recipe, old, new)
 	if recipe ~= nil and recipe.ingredients ~= nil then
+    if data_util.check_for_ingredient(recipe, new) then
+      return
+    end
 		for i, ingredient in pairs(recipe.ingredients) do 
 			-- For final fixes
 			if ingredient.name == old then ingredient.name = new end