Entities are now definable

lib/entities/power_plant.rb

@@ -0,0 +1,15 @@
+IMICRTS::Entity.define_entity(:power_plant, :building, 800, "Generates power") do |entity|
+  entity.radius = 14
+  entity.max_health = 100.0
+
+  entity.body_image = "vehicles/power_plant/images/power_plant.png"
+  entity.shell_image = "vehicles/power_plant/images/power_plant.png"
+
+  entity.on_tick do
+    entity.produce_power
+  end
+
+  define_singleton_method(:produce_power) do
+    @player.power += 10
+  end
+end