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data-util.lua

@@ -312,6 +312,21 @@ function util.add_unlock(technology_name, recipe)
   util.add_effect(technology_name, {type="unlock-recipe", recipe=recipe})
 end
 
+-- Check if a tech unlocks a recipe
+function util.check_unlock(technology_name, recipe)
+  local technology = data.raw.technology[technology_name]
+  if technology and technology.effects then
+    for i, effect in pairs(technology.effects) do
+      if effect.type == "unlock-recipe" and effect.recipe == recipe_name then
+        return true
+      end
+    end
+  end
+  return false
+end
+
+
+
 -- remove recipe unlock effect from a given technology, multiple times if necessary
 function util.remove_recipe_effect(technology_name, recipe_name)
     local technology = data.raw.technology[technology_name]
@@ -531,6 +546,21 @@ function util.get_amount(recipe_name, product)
   return 0
 end
 
+-- Get the count of results
+function util.get_result_count(recipe_name, product)
+  if not product then product = recipe_name end
+  local recipe = data.raw.recipe[recipe_name]
+  if recipe then
+    if recipe.normal and recipe.normal.results then
+      return #(recipe.normal.results)
+    elseif recipe.results then
+      return #(recipe.results)
+    end
+    return 1
+  end
+  return 0
+end
+
 -- Replace one ingredient with another in a recipe
 --    Use amount to set an amount. If that amount is a multiplier instead of an exact amount, set multiply true.
 function util.replace_ingredient(recipe_name, old, new, amount, multiply, options)