Commandable blocks

core/src/mindustry/entities/comp/BuildingComp.java

@@ -545,6 +545,16 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
 
     }
 
+    /** Called when this building receives a position command. Requires a commandable block. */
+    public void onCommand(Vec2 target){
+
+    }
+
+    /** @return the position that this block points to for commands, or null. */
+    public @Nullable Vec2 getCommandPosition(){
+        return null;
+    }
+
     public void handleUnitPayload(Unit unit, Cons<Payload> grabber){
         Fx.spawn.at(unit);
 

core/src/mindustry/entities/comp/UnitComp.java

@@ -281,6 +281,14 @@ abstract class UnitComp implements Healthc, Physicsc, Hitboxc, Statusc, Teamc, I
         return controller instanceof CommandAI;
     }
 
+    public CommandAI command(){
+        if(controller instanceof CommandAI ai){
+            return ai;
+        }else{
+            throw new IllegalArgumentException("Unit cannot be commanded - check isCommandable() first.");
+        }
+    }
+
     public int count(){
         return team.data().countType(type);
     }