Modularized doors and lightbridges

Scripts/Components/Actors/LightBridgeSpriteComponent.cs

@@ -0,0 +1,57 @@
+using System.Threading.Tasks;
+using Godot;
+
+namespace Cirno.Scripts.Components.Actors;
+
+public partial class LightBridgeSpriteComponent : Sprite2D
+{
+    [Export]
+    public Material TurnOffMaterial { get; private set; }
+    
+    [Export]
+    public Material ActiveMaterial { get; private set; }
+
+    protected Door _door;
+    
+    public override void _Ready()
+    {
+        
+        _door = GetParent<Door>();
+        
+        _door.DoorOpened += DoorOpened;
+        _door.DoorClosed += DoorClosed;
+    }
+    
+    protected virtual void DoorOpened()
+    {
+        if (TurnOffMaterial is null) return;
+
+        this.Material = TurnOffMaterial;
+        _ = AnimateShutdownAsync();
+    }
+
+    protected virtual void DoorClosed()
+    {
+        if (ActiveMaterial is null) return;
+        this.Material = ActiveMaterial;
+    }
+    
+    protected async Task AnimateShutdownAsync() 
+    {
+        Tween tween = GetTree().CreateTween();
+        tween.TweenMethod(Callable.From((float value) => SetShaderScanlineDensity(value)), 0f, 50f, 0.5);
+        tween.Parallel().TweenMethod(Callable.From((float value) => SetShaderTeleportProgress(value)), 0f, 1f, 0.5);
+
+        await ToSignal(tween, "finished");
+    }
+    
+    private void SetShaderTeleportProgress(float value)
+    {
+        ((ShaderMaterial)this.Material).SetShaderParameter("teleport_progress", value);
+    }
+
+    private void SetShaderScanlineDensity(float value)
+    {
+        ((ShaderMaterial)this.Material).SetShaderParameter("scanline_density", value);
+    }
+}