Improve entity position updates (#4701)

* Make puking pickups fly nicer

* Improve entity position updates

* Move determination of whether a delta is too big for a packet into the protocol handlers
+ Less jittery movement
+ Generalise CollectEntity to take any entity

src/Entities/Boat.cpp

@@ -49,19 +49,11 @@ void cBoat::BroadcastMovementUpdate(const cClientHandle * a_Exclude)
 	}
 
 	Vector3i Diff = (GetPosition() * 32.0).Floor() - (m_LastSentPosition * 32.0).Floor();
-
 	if (Diff.HasNonZeroLength())  // Have we moved?
 	{
-		if ((abs(Diff.x) <= 127) && (abs(Diff.y) <= 127) && (abs(Diff.z) <= 127))  // Limitations of a Byte
-		{
-			m_World->BroadcastEntityRelMove(*this, Vector3<Int8>(Diff), a_Exclude);
-		}
-		else
-		{
-			// Too big a movement, do a teleport
-			m_World->BroadcastTeleportEntity(*this, a_Exclude);
-		}
+		m_World->BroadcastEntityPosition(*this, a_Exclude);
 		m_LastSentPosition = GetPosition();
+		m_bDirtyOrientation = false;
 	}
 }