added on_order handler to entities and components, added visibility map

lib/entities/structures/helipad.rb

@@ -13,6 +13,8 @@ IMICRTS::Entity.define_entity(:helipad, :structure, 1_000, 100, "Builds and rear
     entity.has(:spawner)
     entity.has(:build_queue)
     entity.has(:sidebar_actions)
+
+    entity.component(:spawner).spawnpoint = entity.position.clone
     entity.component(:sidebar_actions).add(:add_to_build_queue, { entity: :helicopter })
   end
 

lib/entities/structures/refinery.rb

@@ -35,4 +35,15 @@ IMICRTS::Entity.define_entity(:refinery, :structure, 1_400, 200, "Generates cred
       end
     end
   end
+
+  entity.on_order do |type, order|
+    case type
+    when IMICRTS::Order::CONSTRUCTION_COMPLETE
+      pos = entity.position.clone
+      pos.x += 32
+      pos.y += 64
+
+      entity.director.spawn_entity(player_id: entity.player.id, name: :harvester, position: pos)
+    end
+  end
 end

lib/entities/units/helicopter.rb

@@ -6,6 +6,7 @@ IMICRTS::Entity.define_entity(:helicopter, :unit, 400, 40, "Attacks ground targe
   entity.radius = 14
   entity.movement = :air
   entity.max_health = 100.0
+  entity.position.z = IMICRTS::ZOrder::AIR_VEHICLE
 
   entity.body_image = "vehicles/helicopter/helicopter.png"
   entity.shell_image = "vehicles/helicopter/helicopter_shell.png"