//Create a new boss bar
EzBossBar bossBar = new EzBossBar ( new ChatMessage ( "Ender Dragon", false ) ) ;
//Add a new viewer
bossBar. addViewer (player ) ;
//Set boss bar progress
bossBar. setProgress (0.5f ) ;
//Set boss bar color
bossBar. setColor (BarColor. BLUE ) ;
//Set boss bar style
bossBar. setStyle (BarStyle. NOTCHED_20 ) ;
//Make sky dark
bossBar. setDarkenSky ( true ) ;
//Play music to player
bossBar. setPlayMusic ( true ) ;
//Create fog
bossBar. setCreateFog ( true ) ;
//Make player cannot see the boss bar
bossBar. hide (player ) ;
//Make player can see the boss bar
bossBar. show (player ) ;
//Remove a viewer
bossBar. removeViewer (player ) ;
//Drop the boss bar
bossBar. drop ( ) ;