From 8ea483b31ce9cac421cec3c2d55df162350cbbee Mon Sep 17 00:00:00 2001
From: Brevven <brevingame@gmail.com>
Date: Sat, 14 Jan 2023 22:01:09 -0800
Subject: [PATCH] up

---
 data-util.lua | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/data-util.lua b/data-util.lua
index 3373bb2..00af70d 100644
--- a/data-util.lua
+++ b/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]