added ECS system

1 files changed, 20 insertions, 0 deletions

diff --git a/app/ECS/component_manager.rb b/app/ECS/component_manager.rb
new file mode 100644
index 0000000..e64bc21
--- /dev/null
+++ b/app/ECS/component_manager.rb
@@ -0,0 +1,20 @@
+require_relative './base_component'
+Dir[File.join(__dir__, 'components', '*.rb')].sort.each { |file| require file }
+
+class ECS
+  class Components
+    class <<self
+      def entity_destroyed(entity_id)
+        constants.each do |component|
+          component.delete(entity_id) unless (component.id & ECS::Entity.signatures[entity_id]).zero?
+        end
+      end
+
+      def entity_created(entity_id)
+        constants.each do |component|
+          const_get(component.to_s).add(entity_id) unless (const_get(component.to_s).id & ECS::Entity.signatures[entity_id]).zero?
+        end
+      end
+    end
+  end
+end