package Ġlt . ek game . ui . constraints Ċ Ċ sealed Ġclass ĠAlignment Ġ{ ĊĠĠĠ Ġabstract Ġfun Ġcalculate ( element Size : ĠFloat , Ġtotal Space : ĠFloat ): ĠFloat Ċ } Ċ Ċ open Ġclass ĠRelative Alignment ( private Ġval Ġposition : ĠFloat ) Ġ: ĠAlignment () Ġ{ ĊĠĠĠ Ġoverride Ġfun Ġcalculate ( element Size : ĠFloat , Ġtotal Space : ĠFloat ): ĠFloat Ġ= Ġposition *( total Space Ġ- Ġelement Size ) Ċ } Ċ Ċ object ĠStart Alignment Ġ: ĠRelative Alignment ( 0 f ) Ċ Ċ object ĠCenter Alignment Ġ: ĠRelative Alignment ( 0 . 5 f ) Ċ Ċ object ĠEnd Alignment Ġ: ĠRelative Alignment ( 1 f )