Add interaction mask decoding for GameObject definitions

Author: stevesoltys

cache/src/main/java/org/apollo/cache/decoder/ObjectDefinitionDecoder.java

@@ -119,7 +119,7 @@ private ObjectDefinition decode(int id, ByteBuffer data) {
 			} else if (opcode == 60 || opcode >= 65 && opcode <= 68) {
 				data.getShort();
 			} else if (opcode == 69) {
-				data.get();
+				definition.setInteractionMask(data.get());
 			} else if (opcode >= 70 && opcode <= 72) {
 				data.getShort();
 			} else if (opcode == 73) {

cache/src/main/java/org/apollo/cache/def/ObjectDefinition.java

@@ -75,6 +75,11 @@ public static ObjectDefinition lookup(int id) {
 	 */
 	private boolean impenetrable = true;
 
+	/**
+	 * A mask containing the set of directions from which this object can be interacted with.
+	 */
+	private int interactionMask;
+
 	/**
 	 * Denotes whether this object has actions associated with it or not.
 	 */
@@ -137,6 +142,15 @@ public int getId() {
 		return id;
 	}
 
+	/**
+	 * Gets the interaction mask for this object.
+	 *
+	 * @return The interaction mask.
+	 */
+	public int getInteractionMask() {
+		return interactionMask;
+	}
+
 	/**
 	 * Gets the length of this object.
 	 *
@@ -236,6 +250,15 @@ public void setInteractive(boolean interactive) {
 		this.interactive = interactive;
 	}
 
+	/**
+	 * Sets the interaction mask for this object.
+	 *
+	 * @param interactionMask The interaction mask.
+	 */
+	public void setInteractionMask(int interactionMask) {
+		this.interactionMask = interactionMask;
+	}
+
 	/**
 	 * Sets the length of this object.
 	 *