added sources for Slick

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

lib/slick-source/org/newdawn/slick/util/FileSystemLocation.java

@@ -0,0 +1,61 @@
+package org.newdawn.slick.util;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+
+/**
+ * A resource loading location that searches somewhere on the classpath
+ * 
+ * @author kevin
+ */
+public class FileSystemLocation implements ResourceLocation {
+	/** The root of the file system to search */
+	private File root;
+	
+	/**
+	 * Create a new resoruce location based on the file system
+	 * 
+	 * @param root The root of the file system to search
+	 */
+	public FileSystemLocation(File root) {
+		this.root = root;
+	}
+	
+	/**
+	 * @see ResourceLocation#getResource(String)
+	 */
+	public URL getResource(String ref) {
+		try {
+			File file = new File(root, ref);
+			if (!file.exists()) {
+				file = new File(ref);
+			}
+			if (!file.exists()) {
+				return null;
+			}
+			
+			return file.toURI().toURL();
+		} catch (IOException e) {
+			return null;
+		}
+	}
+
+	/**
+	 * @see ResourceLocation#getResourceAsStream(String)
+	 */
+	public InputStream getResourceAsStream(String ref) {
+		try {
+			File file = new File(root, ref);
+			if (!file.exists()) {
+				file = new File(ref);
+			}
+			return new FileInputStream(file);
+		} catch (IOException e) {
+			return null;
+		}
+	}
+
+}