Added zone class / Dialog method inline

core/src/io/anuke/mindustry/game/GlobalData.java

@@ -9,6 +9,7 @@ import io.anuke.mindustry.Vars;
 import io.anuke.mindustry.game.EventType.UnlockEvent;
 import io.anuke.mindustry.type.ContentType;
 import io.anuke.mindustry.type.Item;
+import io.anuke.mindustry.type.ItemStack;
 
 /**Stores player unlocks. Clientside only.*/
 public class GlobalData{
@@ -25,6 +26,22 @@ public class GlobalData{
         items.getAndIncrement(item, 0, amount);
     }
 
+    public boolean hasItems(ItemStack[] stacks){
+        for(ItemStack stack : stacks){
+            if(items.get(stack.item, 0) < stack.amount){
+                return false;
+            }
+        }
+        return true;
+    }
+
+    public void removeItems(ItemStack[] stacks){
+        for(ItemStack stack : stacks){
+            items.getAndIncrement(stack.item, 0, -stack.amount);
+        }
+        modified = true;
+    }
+
     public ObjectIntMap<Item> items(){
         return items;
     }

core/src/io/anuke/mindustry/game/MappableContent.java

@@ -5,7 +5,6 @@ public abstract class MappableContent extends Content {
      * Returns the unqiue name of this piece of content.
      * The name only needs to be unique for all content of this type.
      * Do not use IDs for names! Make sure this string stays constant with each update unless removed.
-     * (e.g. having a recipe and a block, both with name "wall" is fine, as they are different types).
      */
     public abstract String getContentName();