Move playfield constant to top of file and make `internal`
Move playfield constant to top of file and make `internal`

peppy/osu,smoogipoo/osu,UselessToucan/osu,smoogipooo/osu,NeoAdonis/osu,ppy/osu,smoogipoo/osu,NeoAdonis/osu,ppy/osu,smoogipoo/osu,NeoAdonis/osu,UselessToucan/osu,peppy/osu,UselessToucan/osu,ppy/osu,peppy/osu,peppy/osu-new