Unit assembler progress

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

@@ -37,7 +37,7 @@ public class ConsumeItems extends Consume{
             int i = 0;
             for(var stack : items){
                 c.add(new ReqImage(new ItemImage(stack.item.uiIcon, stack.amount),
-                () -> build.items != null && build.items.has(stack.item, stack.amount))).padRight(8);
+                () -> build.items.has(stack.item, stack.amount))).padRight(8);
                 if(++i % 4 == 0) c.row();
             }
         }).left();

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

@@ -0,0 +1,62 @@
+package mindustry.world.consumers;
+
+import arc.func.*;
+import arc.scene.ui.layout.*;
+import arc.struct.*;
+import mindustry.gen.*;
+import mindustry.type.*;
+import mindustry.ui.*;
+import mindustry.world.meta.*;
+
+public class ConsumePayloads extends Consume{
+    //TODO bad, should be part of Building + dynamic
+    protected Func<Building, BlockSeq> inventory;
+
+    public Seq<BlockStack> payloads;
+
+    public <T extends Building> ConsumePayloads(Seq<BlockStack> payloads, Func<T, BlockSeq> inventory){
+        this.payloads = payloads;
+        this.inventory = (Func<Building, BlockSeq>)inventory;
+    }
+
+    @Override
+    public boolean valid(Building build){
+        return inventory.get(build).contains(payloads);
+    }
+
+    @Override
+    public void trigger(Building build){
+        inventory.get(build).remove(payloads);
+    }
+
+    @Override
+    public void display(Stats stats){
+        //TODO
+
+        for(var stack : payloads){
+            stats.add(Stat.input, t -> {
+                t.add(new ItemImage(stack));
+                t.add(stack.block.localizedName).padLeft(4).padRight(4);
+            });
+        }
+    }
+
+    @Override
+    public void build(Building build, Table table){
+        var inv = inventory.get(build);
+
+        table.table(c -> {
+            int i = 0;
+            for(var stack : payloads){
+                c.add(new ReqImage(new ItemImage(stack.block.uiIcon, stack.amount),
+                () -> inv.contains(stack.block, stack.amount))).padRight(8);
+                if(++i % 4 == 0) c.row();
+            }
+        }).left();
+    }
+
+    @Override
+    public ConsumeType type(){
+        return ConsumeType.payload;
+    }
+}

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

@@ -3,5 +3,6 @@ package mindustry.world.consumers;
 public enum ConsumeType{
     item,
     power,
-    liquid
+    liquid,
+    payload
 }