Material generators from Afterlight (#18387)

Content.Client/Power/Generator/GeneratorWindow.xaml

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+<controls:FancyWindow xmlns="https://spacestation14.io"
+                xmlns:cc="clr-namespace:Content.Client.Administration.UI.CustomControls"
+                xmlns:controls="clr-namespace:Content.Client.UserInterface.Controls"
+                MinSize="350 130"
+                SetSize="360 180"
+                Title="{Loc 'generator-ui-title'}">
+    <BoxContainer Margin="4 0" Orientation="Horizontal">
+        <BoxContainer Orientation="Vertical" HorizontalExpand="True" SizeFlagsStretchRatio="2" VerticalAlignment="Center" Margin="5">
+            <GridContainer Margin="2 0 0 0" Columns="2" HorizontalExpand="True">
+                <!-- Power -->
+                <Label Text="{Loc 'generator-ui-target-power-label'}"/>
+                <SpinBox Name="TargetPower" HorizontalExpand="True"/>
+                <Label Text="{Loc 'generator-ui-efficiency-label'}"/>
+                <Label Name="Efficiency" Text="???%" HorizontalExpand="True"/>
+                <Label Text="{Loc 'generator-ui-fuel-use-label'}"/>
+                <ProgressBar Name="FuelFraction" MinValue="0" MaxValue="1" HorizontalExpand="True"/>
+                <Label Text="{Loc 'generator-ui-fuel-left-label'}"/>
+                <Label Name="FuelLeft" Text="0" HorizontalExpand="True"/>
+            </GridContainer>
+        </BoxContainer>
+        <cc:VSeparator StyleClasses="LowDivider"/>
+        <PanelContainer Margin="12 0 0 0" StyleClasses="Inset" VerticalAlignment="Center">
+            <SpriteView Name="EntityView" SetSize="64 64" Scale="2 2" OverrideDirection="South" Margin="15"/>
+        </PanelContainer>
+    </BoxContainer>
+</controls:FancyWindow>

Content.Client/Power/Generator/GeneratorWindow.xaml.cs

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+using Content.Client.UserInterface.Controls;
+using Content.Shared.Power.Generator;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface.XAML;
+
+namespace Content.Client.Power.Generator;
+
+[GenerateTypedNameReferences]
+public sealed partial class GeneratorWindow : FancyWindow
+{
+    [Dependency] private readonly IEntityManager _entityManager = default!;
+
+    private readonly FuelGeneratorComponent? _component;
+    private SolidFuelGeneratorComponentBuiState? _lastState;
+
+    public GeneratorWindow(SolidFuelGeneratorBoundUserInterface bui, EntityUid vis)
+    {
+        RobustXamlLoader.Load(this);
+        IoCManager.InjectDependencies(this);
+
+        _entityManager.TryGetComponent(vis, out _component);
+
+        EntityView.SetEntity(vis);
+        TargetPower.IsValid += IsValid;
+        TargetPower.ValueChanged += (args) =>
+        {
+            bui.SetTargetPower(args.Value);
+        };
+    }
+
+    private bool IsValid(int arg)
+    {
+        if (arg < 0)
+            return false;
+
+        if (arg > (_lastState?.MaximumPower / 1000.0f ?? 0))
+            return false;
+
+        return true;
+    }
+
+    public void Update(SolidFuelGeneratorComponentBuiState state)
+    {
+        if (_component == null)
+            return;
+
+        var oldState = _lastState;
+        _lastState = state;
+        // ReSharper disable once CompareOfFloatsByEqualityOperator
+        if (oldState?.TargetPower != state.TargetPower)
+            TargetPower.OverrideValue((int)(state.TargetPower / 1000.0f));
+        Efficiency.Text = SharedGeneratorSystem.CalcFuelEfficiency(state.TargetPower, state.OptimalPower, _component).ToString("P1");
+        FuelFraction.Value = state.RemainingFuel - (int) state.RemainingFuel;
+        FuelLeft.Text = ((int) MathF.Floor(state.RemainingFuel)).ToString();
+
+    }
+}

Content.Client/Power/Generator/SolidFuelGeneratorBoundUserInterface.cs

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+using Content.Shared.Power.Generator;
+using JetBrains.Annotations;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.Power.Generator;
+
+[UsedImplicitly]
+public sealed class SolidFuelGeneratorBoundUserInterface : BoundUserInterface
+{
+    private GeneratorWindow? _window;
+
+    public SolidFuelGeneratorBoundUserInterface(EntityUid owner, Enum uiKey) : base(owner, uiKey)
+    {
+    }
+
+    protected override void Open()
+    {
+        base.Open();
+        _window = new GeneratorWindow(this, Owner);
+
+        _window.OpenCenteredLeft();
+        _window.OnClose += Close;
+    }
+
+    protected override void UpdateState(BoundUserInterfaceState state)
+    {
+        if (state is not SolidFuelGeneratorComponentBuiState msg)
+            return;
+
+        _window?.Update(msg);
+    }
+
+    protected override void Dispose(bool disposing)
+    {
+       _window?.Dispose();
+    }
+
+    public void SetTargetPower(int target)
+    {
+        SendMessage(new SetTargetPowerMessage(target));
+    }
+}