added sources for Slick

Former-commit-id: 1647fa32ef6894bd7db44f741f07c2f4dcdf9054
Former-commit-id: 0e5810dcfbe1fd59b13e7cabe9f1e93c5542da2d

lib/slick-source/org/newdawn/slick/loading/DeferredResource.java

@@ -0,0 +1,26 @@
+package org.newdawn.slick.loading;
+
+import java.io.IOException;
+
+/**
+ * A description of any class providing a resource handle that be loaded 
+ * at a later date (i.e. deferrred)
+ *
+ * @author kevin
+ */
+public interface DeferredResource {
+
+	/**
+	 * Load the actual resource 
+	 * 
+	 * @throws IOException Indicates a failure to load the resource
+	 */
+	public void load() throws IOException;
+	
+	/**
+	 * Get a description of the resource to be loaded
+	 * 
+	 * @return The description of the resource to be loaded
+	 */
+	public String getDescription();
+}