fix small bug with experience distribution

  Before checking if players are in the same party, we need to
check if they're in any party at all. I made a small wrapper
`TPlayer::InPartyWith` to help prevent this mistake again.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/cr.hh b/src/cr.hh
index f7cbb2e..18cfe5e 100644
--- a/src/cr.hh
+++ b/src/cr.hh
@@ -867,6 +867,7 @@ struct TPlayer: TCreature {
 	void ClearPlayerkillingMarks(void);
 	int GetPlayerkillingMark(TPlayer *Observer);
 	uint32 GetPartyLeader(bool CheckFormer);
+	bool InPartyWith(TPlayer *Other, bool CheckFormer);
 	void JoinParty(uint32 LeaderID);
 	void LeaveParty(void);
 	int GetPartyMark(TPlayer *Observer);