Tungsten walls

core/src/mindustry/world/Block.java

@@ -134,6 +134,8 @@ public class Block extends UnlockableContent{
     public Attributes attributes = new Attributes();
     /** tile entity health */
     public int health = -1;
+    /** damage absorption, similar to unit armor */
+    public float armor = 0f;
     /** base block explosiveness */
     public float baseExplosiveness = 0f;
     /** bullet that this block spawns when destroyed */
@@ -429,6 +431,9 @@ public class Block extends UnlockableContent{
 
         if(synthetic()){
             stats.add(Stat.health, health, StatUnit.none);
+            if(armor > 0){
+                stats.add(Stat.armor, armor, StatUnit.none);
+            }
         }
 
         if(canBeBuilt() && requirements.length > 0){

core/src/mindustry/world/blocks/units/UnitAssembler.java

@@ -3,6 +3,7 @@ package mindustry.world.blocks.units;
 import arc.math.geom.*;
 import arc.struct.*;
 import arc.util.*;
+import arc.util.io.*;
 import mindustry.content.*;
 import mindustry.gen.*;
 import mindustry.graphics.*;
@@ -20,8 +21,12 @@ import static mindustry.Vars.*;
  * */
 public class UnitAssembler extends PayloadBlock{
     public int areaSize = 10;
-    public UnitType unitType;
-    public int unitsCreated = 4;
+    public UnitType droneType;
+    public int dronesCreated = 4;
+
+    //TODO should be different for every tier.
+    public Seq<BlockStack> requirements = new Seq<>();
+    public UnitType output = UnitTypes.vanquish;
 
     public UnitAssembler(String name){
         super(name);
@@ -47,17 +52,19 @@ public class UnitAssembler extends PayloadBlock{
         Drawf.dashRect(valid ? Pal.accent : Pal.remove, Tmp.r1);
     }
 
-    public class UnitAssemblerBuild extends PayloadBlockBuild<Payload>{
+    public class UnitAssemblerBuild extends PayloadBlockBuild<BuildPayload>{
         public Seq<Unit> units = new Seq<>();
-        public Seq<BuildPayload> payloads = new Seq<>();
+
+        //TODO how should payloads be stored? counts of blocks? intmap? references?
+        //public Seq<BuildPayload> payloads = new Seq<>();
 
         @Override
         public void updateTile(){
             units.removeAll(u -> !u.isAdded() || u.dead);
 
-            if(consValid() && units.size < unitsCreated){
+            if(consValid() && units.size < dronesCreated){
                 //TODO build animation? distribute spawning?
-                var unit = unitType.create(team);
+                var unit = droneType.create(team);
                 if(unit instanceof BuildingTetherc bt){
                     bt.building(this);
                 }
@@ -69,12 +76,29 @@ public class UnitAssembler extends PayloadBlock{
                 units.add(unit);
             }
 
-            //TODO drones need to indicate that they are in position
+            //TODO drones need to indicate that they are in position and actually play an animation
+        }
+
+        @Override
+        public void handlePayload(Building source, Payload payload){
+            //super.handlePayload(source, payload);
+
+            //payloads.add((BuildPayload)payload);
         }
 
         @Override
         public boolean acceptPayload(Building source, Payload payload){
-            return super.acceptPayload(source, payload);
+            return payload instanceof BuildPayload bp && requirements.contains(b -> b.block == bp.block());
+        }
+
+        @Override
+        public void write(Writes write){
+            super.write(write);
+        }
+
+        @Override
+        public void read(Reads read, byte revision){
+            super.read(read, revision);
         }
     }
 }