Restrict some sound groups by listening player

[historic_bruno]

Currently, unit training and building complete sounds are heard by every player with LOS on the new entity. These sounds should only be heard by the owning player, for everyone else they are a distraction.

It was proposed in ​IRC to add a property to the sound group XML, which the sound manager can use to filter out sounds by player. Suggested filters were: owner, allies, and everyone.

[stwf]

ok, this has been added to the svn trunk. to restrict a sound group to be heard by the owner only set

<Restricted>1</Restricted>

in the xml file.

[stwf]

OK the tag tohas bene changed to

<HeardBy>owner</HeardBy>

The other supported value will be 'all' although since that is the default, anything other than 'owner' will translate to 'all' Documentation to follow

[ben]

In 13490:

Sets remaining unit trained and building completed sounds to HeardBy owner only, refs #1965