Add argon-specific health display test scene

osu.Game.Tests/Visual/Gameplay/TestSceneArgonHealthDisplay.cs

@@ -0,0 +1,78 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+using NUnit.Framework;
+using osu.Framework.Allocation;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Shapes;
+using osu.Framework.Testing;
+using osu.Game.Rulesets.Judgements;
+using osu.Game.Rulesets.Objects;
+using osu.Game.Rulesets.Osu.Judgements;
+using osu.Game.Rulesets.Osu.Objects;
+using osu.Game.Rulesets.Scoring;
+using osu.Game.Screens.Play.HUD;
+using osuTK;
+using osuTK.Graphics;
+
+namespace osu.Game.Tests.Visual.Gameplay
+{
+    public partial class TestSceneArgonHealthDisplay : OsuTestScene
+    {
+        [Cached(typeof(HealthProcessor))]
+        private HealthProcessor healthProcessor = new DrainingHealthProcessor(0);
+
+        [SetUpSteps]
+        public void SetUpSteps()
+        {
+            AddStep(@"Reset all", delegate
+            {
+                healthProcessor.Health.Value = 1;
+                healthProcessor.Failed += () => false; // health won't be updated if the processor gets into a "fail" state.
+
+                Children = new Drawable[]
+                {
+                    new Box
+                    {
+                        RelativeSizeAxes = Axes.Both,
+                        Colour = Color4.Black,
+                    },
+                    new ArgonHealthDisplay
+                    {
+                        Anchor = Anchor.Centre,
+                        Origin = Anchor.Centre,
+                        Scale = new Vector2(2f),
+                    },
+                };
+            });
+        }
+
+        [Test]
+        public void TestHealthDisplayIncrementing()
+        {
+            AddRepeatStep("apply miss judgement", delegate
+            {
+                healthProcessor.ApplyResult(new JudgementResult(new HitObject(), new Judgement()) { Type = HitResult.Miss });
+            }, 5);
+
+            AddRepeatStep(@"decrease hp slightly", delegate
+            {
+                healthProcessor.Health.Value -= 0.01f;
+            }, 10);
+
+            AddRepeatStep(@"increase hp without flash", delegate
+            {
+                healthProcessor.Health.Value += 0.1f;
+            }, 3);
+
+            AddRepeatStep(@"increase hp with flash", delegate
+            {
+                healthProcessor.Health.Value += 0.1f;
+                healthProcessor.ApplyResult(new JudgementResult(new HitCircle(), new OsuJudgement())
+                {
+                    Type = HitResult.Perfect
+                });
+            }, 3);
+        }
+    }
+}

osu.Game/Screens/Play/HUD/ArgonHealthDisplay.cs

@@ -52,8 +52,6 @@ namespace osu.Game.Screens.Play.HUD
         [BackgroundDependencyLoader]
         private void load()
         {
-            Anchor = Anchor.TopLeft;
-            Origin = Anchor.TopLeft;
             AutoSizeAxes = Axes.Both;
 
             Vector2 diagonalDir = (new Vector2(curve_end, bar_height) - new Vector2(curve_start, 0)).Normalized();