rewritten tile system, added intial flood fill system

src/mightypork/util/files/ion/IonBinary.java

@@ -5,30 +5,11 @@ import java.io.IOException;
 
 
 /**
- * Binary ion object
+ * Binary ion object, with a mark = saveable / loadable on it's own
  * 
  * @author MightyPork
  */
-public interface IonBinary {
-	
-	/**
-	 * Load data from the input stream.
-	 * 
-	 * @param in input stream
-	 * @throws IOException
-	 */
-	void load(IonInput in) throws IOException;
-	
-	
-	/**
-	 * Store data to output stream (in such way that the load method will later
-	 * be able to read it).
-	 * 
-	 * @param out Output stream
-	 * @throws IOException
-	 */
-	void save(IonOutput out) throws IOException;
-	
+public interface IonBinary extends IonBinaryHeadless {
 	
 	/**
 	 * Get Ion mark byte.

src/mightypork/util/files/ion/IonBinaryHeadless.java

@@ -0,0 +1,31 @@
+package mightypork.util.files.ion;
+
+
+import java.io.IOException;
+
+
+/**
+ * Binary ion object, with no mark = cannot be loaded on it's own
+ * 
+ * @author MightyPork
+ */
+public interface IonBinaryHeadless {
+	
+	/**
+	 * Load data from the input stream.
+	 * 
+	 * @param in input stream
+	 * @throws IOException
+	 */
+	void load(IonInput in) throws IOException;
+	
+	
+	/**
+	 * Store data to output stream (in such way that the load method will later
+	 * be able to read it).
+	 * 
+	 * @param out Output stream
+	 * @throws IOException
+	 */
+	void save(IonOutput out) throws IOException;
+}