Merge pull request 'trade request cancel' (#16) from trade_cancel into master

Reviewed-on: #16

src/packet/messages.rs

@@ -700,6 +700,7 @@ pub enum TradeRequestCommand {
     RemoveItem(u32, u32),
     Confirm,
     FinalConfirm,
+    Cancel,
 }
 
 impl PSOPacketData for TradeRequestCommand {
@@ -737,6 +738,9 @@ impl PSOPacketData for TradeRequestCommand {
             4 => {
                 Ok(TradeRequestCommand::FinalConfirm)
             },
+            5 => {
+                Ok(TradeRequestCommand::Cancel)
+            },
             _ => {
                 Err(PacketParseError::InvalidValue)
             },
@@ -784,6 +788,12 @@ impl PSOPacketData for TradeRequestCommand {
                     .chain(std::iter::repeat(0).take(11))
                     .collect()
             },
+            TradeRequestCommand::Cancel=> {
+                vec![5u8]
+                    .into_iter()
+                    .chain(std::iter::repeat(0).take(11))
+                    .collect()
+            },
         }
     }
 }
@@ -1576,3 +1586,15 @@ impl PSOPacketData for GameMessage {
         }
     }
 }
+
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_trade_request_cancel() {
+        let data =  vec![166, 4, 0, 0, 5, 4, 0, 0, 157, 58, 113, 0, 1, 0, 0, 0];
+        let _pkt = GameMessage::from_bytes(&mut std::io::Cursor::new(data)).unwrap();
+    }
+}