Added spawner and waypoint components, added building_set_waypoint order, particle emitters can now toggle their emission, buildings can now build and spawn units, buildings now dynamically emit smoke when working and no longer when building, added player2 to default game for testing.

lib/components/build_queue.rb

@@ -1,5 +1,7 @@
 class IMICRTS
   class BuildQueue < Component
+    attr_reader :queue
+
     Item = Struct.new(:entity, :progress)
     def setup
       @queue = []

lib/components/movement.rb

@@ -3,11 +3,16 @@ class IMICRTS
     attr_accessor :pathfinder
 
     def update
-      if pathfinder && pathfinder.path_current_node
-        rotate_towards(pathfinder.path_current_node.tile.position + @parent.director.map.tile_size / 2)
-      end
+      if @parent.movement == :ground
+        if pathfinder && pathfinder.path_current_node
+          rotate_towards(pathfinder.path_current_node.tile.position + @parent.director.map.tile_size / 2)
+        end
 
-      follow_path
+        follow_path
+      else
+        rotate_towards(@parent.target)
+        @parent.position -= (@parent.position.xy - @parent.target.xy).normalized * @parent.speed
+      end
     end
 
     def rotate_towards(vector)

lib/components/spawner.rb

@@ -0,0 +1,23 @@
+class IMICRTS
+  class Spawner < Component
+    def tick(tick_id)
+      # TODO: Ensure that a build order is created before working on entity
+
+      item = @parent.component(:build_queue).queue.first
+
+      if item
+        item.progress += 1
+
+        if item.progress >= 100 # TODO: Define work units required for construction
+          @parent.component(:build_queue).queue.shift
+
+          spawn_point = @parent.position.clone
+          spawn_point.y += 96 # TODO: Use one of entity's reserved tiles for spawning
+
+          ent = @parent.director.spawn_entity(player_id: @parent.player.id, name: item.entity.name, position: spawn_point)
+          ent.target = @parent.component(:waypoint).waypoint if @parent.component(:waypoint)
+        end
+      end
+    end
+  end
+end

lib/components/waypoint.rb

@@ -0,0 +1,27 @@
+class IMICRTS
+  class Waypoint < Component
+    def setup
+      @waypoint = @parent.position.clone
+      @waypoint.y += @parent.director.map.tile_size
+    end
+
+    def set(vector)
+      @waypoint = vector
+    end
+
+    def waypoint
+      @waypoint.clone
+    end
+
+    def draw
+      return unless @parent.player.selected_entities.include?(@parent)
+
+      Gosu.draw_line(
+        @parent.position.x, @parent.position.y, @parent.player.color,
+        @waypoint.x, @waypoint.y, @parent.player.color, ZOrder::ENTITY_GIZMOS
+      )
+
+      Gosu.draw_circle(@waypoint.x, @waypoint.y, 4, 9, @parent.player.color, ZOrder::ENTITY_GIZMOS)
+    end
+  end
+end