[Java-player-users] setPosition message format

[John O. <joh...@gm...>]

I have been having some trouble with getting setPosition to work on a
Position2DInterface.  (Player/stage 2.0.1 and Javaclient 2.0.1)

Taking a quick(well perhaps not that quick) look at the code in player the
pack function (player_position2d_cmd_pack) it appears to look for both a
position command and a velocity in the message:

...
  if(xdr_player_pose_t(&xdrs,&msg->pos) != 1)
    return(-1);
  if(xdr_player_pose_t(&xdrs,&msg->vel) != 1)
    return(-1);
  if(xdr_u_char(&xdrs,&msg->state) != 1)
    return(-1);
...

while the java version only sends the
position(Position2DInterface.setPosition), and from what I can tell this is
leading to my "warning : decoding failed on message to 4:1 with type 2"
messages.

Have I made a mistake here or is this something to be patched?  And is it a
player problem or JavaClient?  My instinct is that player should not be
looking for a velocity in a position command however I do not entirely
understand the P/S message formats and wanted confirmation that this was the
case(or not).

thanks

John
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