ConsumeItemList (#9947)

* ConsumeItemList

* Add to ContentParser

* Add efficiency multipliers

* Untested adding to ObjectIntMap and ObjectFloatMap

* Use a single map

core/src/mindustry/world/consumers/ConsumeItemList.java

@@ -0,0 +1,33 @@
+package mindustry.world.consumers;
+
+import arc.struct.*;
+import mindustry.gen.*;
+import mindustry.type.*;
+
+public class ConsumeItemList extends ConsumeItemFilter{
+    public ObjectFloatMap<Item> itemMultipliers = new ObjectFloatMap<>();
+
+    public ConsumeItemList(Item... items){
+        this();
+        for(Item i : items){
+            itemMultipliers.put(i, 1f);
+        }
+    }
+
+    public ConsumeItemList(){
+        filter = item -> itemMultipliers.containsKey(item);
+    }
+
+    /** Initializes item efficiency multiplier map. Format: [item1, mult1, item2, mult2...] */
+    public void setMultipliers(Object... objects){
+        for(int i = 0; i < objects.length; i += 2){
+            itemMultipliers.put((Item)objects[i], (Float)objects[i + 1]);
+        }
+    }
+
+    @Override
+    public float efficiencyMultiplier(Building build){
+        var item = getConsumed(build);
+        return itemMultipliers.get(item, 1f);
+    }
+}