Add hero runtime

godot/scripts/hero/HeroStateHudController.cs

@@ -0,0 +1,75 @@
+#nullable enable
+
+using System.Globalization;
+using System.Linq;
+using Godot;
+using SideScrollerGame.Hero.Rules;
+
+namespace SideScrollerGame.Hero;
+
+public partial class HeroStateHudController : Control
+{
+    public override void _Ready()
+    {
+        EnsureLabel();
+        Refresh();
+    }
+
+    public void Bind(HeroRuntimeService runtime)
+    {
+        if (m_Runtime is not null)
+        {
+            m_Runtime.StateChanged -= HandleStateChanged;
+        }
+
+        m_Runtime = runtime;
+        runtime.StateChanged += HandleStateChanged;
+        Refresh();
+    }
+
+    public void Refresh()
+    {
+        Label label = EnsureLabel();
+        if (m_Runtime is null)
+        {
+            label.Text = "Hero: unbound";
+            return;
+        }
+
+        HeroRunState state = m_Runtime.State;
+        string slots = string.Join(", ", state.PrimaryWeaponSlots.Select((weaponId, index) => index == state.SelectedPrimaryWeaponSlotIndex ? $"[{Display(weaponId)}]" : Display(weaponId)));
+        string nextThreshold = m_Runtime.NextPointThreshold?.ToString(CultureInfo.InvariantCulture) ?? "max";
+        label.Text = $"Hero: {state.LifeState}\n" + $"Level: {state.Level}  Points: {state.Points}  Next: {nextThreshold}\n" + $"Shields: {state.ShieldCharges}  Retries: {state.RetryCount}\n" + $"Primary: {slots}\n" + $"Secondary: {Display(state.CurrentSecondaryWeaponId)}\n" + $"Special: {Display(state.CurrentSpecialWeaponId)} ammo={state.SpecialAmmo}\n" + $"Squadron: {Display(state.SquadronMateTypeId)} x{state.SquadronMateCount}\n" + $"Last: {state.LastStateChange}";
+    }
+
+    private void HandleStateChanged(HeroRunState state)
+    {
+        Refresh();
+    }
+
+    private Label EnsureLabel()
+    {
+        if (m_StateLabel is not null)
+        {
+            return m_StateLabel;
+        }
+
+        m_StateLabel = GetNodeOrNull<Label>("StateLabel");
+        if (m_StateLabel is null)
+        {
+            m_StateLabel = new Label { Name = "StateLabel" };
+            AddChild(m_StateLabel);
+        }
+
+        m_StateLabel.AutowrapMode = TextServer.AutowrapMode.WordSmart;
+        return m_StateLabel;
+    }
+
+    private static string Display(string? value)
+    {
+        return string.IsNullOrWhiteSpace(value) ? "empty" : value;
+    }
+
+    private HeroRuntimeService? m_Runtime;
+    private Label? m_StateLabel;
+}