osu-lazer/osu.Game/Screens/Tournament/Drawings.cs

using OpenTK;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Primitives;
using osu.Game.Screens.Backgrounds;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace osu.Game.Screens.Tournament
{
    public class Drawings : OsuScreen
    {
        protected override BackgroundScreen CreateBackground() => new BackgroundScreenDefault();

        public Drawings()
        {
            GroupContainer gc;

            Children = new[]
            {
                gc = new GroupContainer(8)
                {
                    Anchor = Anchor.TopCentre,
                    Origin = Anchor.TopCentre,

                    RelativeSizeAxes = Axes.Y,
                    AutoSizeAxes = Axes.X,

                    Padding = new MarginPadding()
                    {
                        Top = 35f,
                        Bottom = 35f
                    }
                }
            };

            Team t = new Team()
            {
                FullName = "Australia",
                Acronym = "AUS",
                FlagName = "AU"
            };

            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
            gc.AddTeam(t);
        }

        class GroupContainer : Container
        {
            private FlowContainer<Group> topGroups;
            private FlowContainer<Group> bottomGroups;

            private List<Group> allGroups = new List<Group>();

            public GroupContainer(int numGroups)
            {
                char nextGroupName = 'A';

                Children = new[]
                {
                    topGroups = new FlowContainer<Group>()
                    {
                        Anchor = Anchor.TopCentre,
                        Origin = Anchor.TopCentre,

                        AutoSizeAxes = Axes.Both,

                        Spacing = new Vector2(7f, 0)
                    },
                    bottomGroups = new FlowContainer<Group>()
                    {
                        Anchor = Anchor.BottomCentre,
                        Origin = Anchor.BottomCentre,

                        AutoSizeAxes = Axes.Both,

                        Spacing = new Vector2(7f, 0)
                    }
                };

                for (int i = 0; i < numGroups; i++)
                {
                    Group g = new Group(nextGroupName.ToString());

                    allGroups.Add(g);
                    nextGroupName++;

                    if (i < (int)Math.Ceiling(numGroups / 2f))
                        topGroups.Add(g);
                    else
                        bottomGroups.Add(g);
                }
            }

            public void AddTeam(Team team)
            {
                for (int i = 0; i < allGroups.Count; i++)
                {
                    if (allGroups[i].TeamsCount == 8)
                        continue;

                    allGroups[i].AddTeam(team);
                    break;
                }
            }
        }
    }
}