More research tweaks / Balancing

core/src/mindustry/world/Block.java

@@ -584,6 +584,14 @@ public class Block extends UnlockableContent{
         }
     }
 
+    @Override
+    public void getDependencies(Cons<UnlockableContent> cons){
+        //just requires items
+        for(ItemStack stack : requirements){
+            cons.get(stack.item);
+        }
+    }
+
     @Override
     public void displayInfo(Table table){
         ContentDisplay.displayBlock(table, this);