From 7454e522a5dd41a2cc107daf6eaa4171d01c0984 Mon Sep 17 00:00:00 2001
From: Scott Davis <jetviper21@gmail.com>
Date: Sun, 12 Jun 2011 00:52:36 -0400
Subject: [PATCH] engine abstract

---
 .../sass_extensions/sprites/engines.rb        | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/lib/compass/sass_extensions/sprites/engines.rb b/lib/compass/sass_extensions/sprites/engines.rb
index 26a73260..1a3daee3 100644
--- a/lib/compass/sass_extensions/sprites/engines.rb
+++ b/lib/compass/sass_extensions/sprites/engines.rb
@@ -1 +1,24 @@
+module Compass
+  module SassExtensions
+    module Sprites
+      class Engine
+        attr_accessor :width, :height, :images
+        def initialize(width, height, images)
+          @width, @height, @images = width, height, images
+        end
+        
+        def construct_sprite
+          raise ::Compass::Error, "You must impliment construct_sprite"
+        end
+        
+        def save(filename)
+          raise ::Compass::Error, "You must impliment save(filename)"
+        end
+        
+      end
+    end
+  end
+end
+
+
 require 'compass/sass_extensions/sprites/engines/chunky_png_engine'
\ No newline at end of file