Add user interaction and stricter change validation rules

osu.Game.Tournament/Screens/Ladder/Components/DrawableMatchPairing.cs

@@ -2,6 +2,8 @@
 // Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
 
 using System.Collections.Generic;
+using osu.Framework.Allocation;
+using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Lines;
@@ -14,9 +16,10 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
     {
         public readonly MatchPairing Pairing;
         private readonly FillFlowContainer<DrawableMatchTeam> flow;
-
         private DrawableMatchPairing progression;
 
+        private readonly Bindable<TournamentConditions> conditions = new Bindable<TournamentConditions>();
+
         private readonly Path path;
 
         public DrawableMatchPairing Progression
@@ -39,6 +42,51 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
 
         private const float line_width = 2;
 
+        public DrawableMatchPairing(MatchPairing pairing)
+        {
+            Pairing = pairing;
+
+            AutoSizeAxes = Axes.Both;
+
+            Margin = new MarginPadding(5);
+
+            InternalChildren = new Drawable[]
+            {
+                flow = new FillFlowContainer<DrawableMatchTeam>
+                {
+                    AutoSizeAxes = Axes.Both,
+                    Direction = FillDirection.Vertical,
+                    Spacing = new Vector2(2)
+                },
+                path = new Path
+                {
+                    Alpha = 0,
+                    BypassAutoSizeAxes = Axes.Both,
+                    Anchor = Anchor.CentreRight,
+                    PathWidth = line_width,
+                },
+            };
+
+            pairing.Team1.BindValueChanged(_ => updateTeams());
+            pairing.Team2.BindValueChanged(_ => updateTeams());
+
+            pairing.Team1Score.BindValueChanged(_ => updateWinConditions());
+            pairing.Team2Score.BindValueChanged(_ => updateWinConditions());
+
+            pairing.Completed.BindValueChanged(_ => updateProgression());
+
+            updateTeams();
+        }
+
+        [BackgroundDependencyLoader(true)]
+        private void load(Bindable<TournamentConditions> conditions)
+        {
+            this.conditions.BindValueChanged(_ => updateWinConditions());
+
+            if (conditions != null)
+                this.conditions.BindTo(conditions);
+        }
+
         private void updateProgression()
         {
             if (progression == null)
@@ -83,37 +131,11 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
             destinationForWinner.Value = Pairing.Winner;
         }
 
-        public DrawableMatchPairing(MatchPairing pairing)
+        private void updateWinConditions()
         {
-            Pairing = pairing;
+            if (conditions.Value == null) return;
 
-            AutoSizeAxes = Axes.Both;
-
-            Margin = new MarginPadding(5);
-
-            InternalChildren = new Drawable[]
-            {
-                flow = new FillFlowContainer<DrawableMatchTeam>
-                {
-                    AutoSizeAxes = Axes.Both,
-                    Direction = FillDirection.Vertical,
-                    Spacing = new Vector2(2)
-                },
-                path = new Path
-                {
-                    Alpha = 0,
-                    BypassAutoSizeAxes = Axes.Both,
-                    Anchor = Anchor.CentreRight,
-                    PathWidth = line_width,
-                },
-            };
-
-            pairing.Team1.BindValueChanged(_ => updateTeams());
-            pairing.Team2.BindValueChanged(_ => updateTeams());
-
-            pairing.Completed.BindValueChanged(_ => updateProgression());
-
-            updateTeams();
+            Pairing.Completed.Value = Pairing.Team1Score.Value + Pairing.Team2Score.Value >= conditions.Value.BestOf;
         }
 
         protected override void LoadComplete()
@@ -136,6 +158,9 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
 
             // todo: teams may need to be bindable for transitions at a later point.
 
+            if (Pairing.Team1.Value == null || Pairing.Team2.Value == null)
+                Pairing.CancelMatchStart();
+
             flow.Children = new[]
             {
                 new DrawableMatchTeam(Pairing.Team1, Pairing),
@@ -143,6 +168,7 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
             };
 
             updateProgression();
+            updateWinConditions();
         }
     }
 }

osu.Game.Tournament/Screens/Ladder/Components/DrawableMatchTeam.cs

@@ -7,16 +7,20 @@ using osu.Framework.Configuration;
 using osu.Framework.Graphics;
 using osu.Framework.Graphics.Containers;
 using osu.Framework.Graphics.Shapes;
+using osu.Framework.Input.EventArgs;
+using osu.Framework.Input.States;
 using osu.Game.Graphics;
 using osu.Game.Graphics.Sprites;
 using osu.Game.Tournament.Components;
 using OpenTK;
 using OpenTK.Graphics;
+using OpenTK.Input;
 
 namespace osu.Game.Tournament.Screens.Ladder.Components
 {
     public class DrawableMatchTeam : DrawableTournamentTeam
     {
+        private readonly MatchPairing pairing;
         private OsuSpriteText scoreText;
         private Box background;
 
@@ -31,6 +35,7 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
         public DrawableMatchTeam(TournamentTeam team, MatchPairing pairing)
             : base(team)
         {
+            this.pairing = pairing;
             Size = new Vector2(150, 40);
 
             Masking = true;
@@ -48,7 +53,8 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
                 isWinner = () => pairing.Winner == Team;
 
                 completed.BindTo(pairing.Completed);
-                score.BindTo(team == pairing.Team1.Value ? pairing.Team1Score : pairing.Team2Score);
+                if (team != null)
+                    score.BindTo(team == pairing.Team1.Value ? pairing.Team1Score : pairing.Team2Score);
             }
         }
 
@@ -109,6 +115,30 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
             }, true);
         }
 
+        protected override bool OnMouseDown(InputState state, MouseDownEventArgs args)
+        {
+            if (Team == null) return true;
+
+            if (args.Button == MouseButton.Left)
+            {
+                if (score.Value == null)
+                {
+                    pairing.StartMatch();
+                }
+                else if (!pairing.Completed)
+                    score.Value++;
+            }
+            else
+            {
+                if (score.Value > 0)
+                    score.Value--;
+                else
+                    pairing.CancelMatchStart();
+            }
+
+            return true;
+        }
+
         private void updateWinStyle()
         {
             bool winner = completed && isWinner?.Invoke() == true;

osu.Game.Tournament/Screens/Ladder/Components/MatchPairing.cs

@@ -23,15 +23,27 @@ namespace osu.Game.Tournament.Screens.Ladder.Components
         {
             Team1.Value = team1;
             Team2.Value = team2;
-
-            Team1Score.ValueChanged += _ => Completed.Value = false;
-            Team2Score.ValueChanged += _ => Completed.Value = false;
         }
 
         public TournamentTeam Winner => !Completed.Value ? null : (Team1Score.Value > Team2Score.Value ? Team1.Value : Team2.Value);
 
-        public void ResetScores()
+        /// <summary>
+        /// Remove scores from the match, in case of a false click or false start.
+        /// </summary>
+        public void CancelMatchStart()
         {
+            Team1Score.Value = null;
+            Team2Score.Value = null;
+        }
+
+        /// <summary>
+        /// Initialise this match with zeroed scores. Will be a noop if either team is not present.
+        /// </summary>
+        public void StartMatch()
+        {
+            if (Team1.Value == null || Team2.Value == null)
+                return;
+
             Team1Score.Value = 0;
             Team2Score.Value = 0;
         }

osu.Game.Tournament/Screens/Ladder/Components/TournamentConditions.cs

@@ -0,0 +1,13 @@
+namespace osu.Game.Tournament.Screens.Ladder.Components
+{
+    /// <summary>
+    /// Conditions governing a tournament.
+    /// </summary>
+    public class TournamentConditions
+    {
+        /// <summary>
+        /// How many matches before a winner is decided.
+        /// </summary>
+        public int BestOf;
+    }
+}