* Updated to ZDoom r3515:

- Check for overflows when giving inventory items.
- Fixed: A_Respawn also needs to use P_SpawnMapThing-like sector finding. Since it is exactly the same situation A_RestoreSpecialPosition, it now just calls that to do the moving. This also means it is no longer limited to respawning things on the floor.
- Make DF2_BARRELS_RESPAWN work in all game modes without the need for alwaysapplydmflags.
- Implement multitick viewpitch centering logic.
- Fixed: DEM_CENTERVIEW also needs to reset the LocalViewPitch if it's for the consoleplayer.
- Fixed: Monster respawning did not redo floorz/ceilingz for 3D floors after positioning the item.
- Fixed: Monster respawning used the newly spawned monster's SpawnPoint to determine what to shift the Z position by. This is, naturally, always 0.
- Fixed: Item respawning did not redo floorz/ceilingz for 3D floors after positioning the item.

git-svn-id: http://mancubus.net/svn/hosted/gzdoom/trunk@1340 b0f79afe-0144-0410-b225-9a4edf0717df

src/p_user.cpp

@@ -2241,9 +2241,9 @@ void P_PlayerThink (player_t *player)
 		{
 			if (look == -32768 << 16)
 			{ // center view
-				player->mo->pitch = 0;
+				player->centering = true;
 			}
-			else
+			else if (!player->centering)
 			{
 				fixed_t oldpitch = player->mo->pitch;
 				player->mo->pitch -= look;
@@ -2266,6 +2266,22 @@ void P_PlayerThink (player_t *player)
 			}
 		}
 	}
+	if (player->centering)
+	{
+		if (abs(player->mo->pitch) > 2*ANGLE_1)
+		{
+			player->mo->pitch = FixedMul(player->mo->pitch, FRACUNIT*2/3);
+		}
+		else
+		{
+			player->mo->pitch = 0;
+			player->centering = false;
+			if (player - players == consoleplayer)
+			{
+				LocalViewPitch = 0;
+			}
+		}
+	}
 
 	// [RH] Check for fast turn around
 	if (cmd->ucmd.buttons & BT_TURN180 && !(player->oldbuttons & BT_TURN180))