57 lines
2.0 KiB
C#
57 lines
2.0 KiB
C#
// SPDX-FileCopyrightText: 2025 Aiden <28298836+Aidenkrz@users.noreply.github.com>
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// SPDX-FileCopyrightText: 2025 Aviu00 <93730715+Aviu00@users.noreply.github.com>
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// SPDX-FileCopyrightText: 2025 Misandry <mary@thughunt.ing>
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// SPDX-FileCopyrightText: 2025 Spatison <137375981+Spatison@users.noreply.github.com>
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// SPDX-FileCopyrightText: 2025 gus <august.eymann@gmail.com>
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//
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// SPDX-License-Identifier: AGPL-3.0-or-later
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using System.Numerics;
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using Content.Shared._Goobstation.Overlays;
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using Robust.Client.Graphics;
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using Robust.Shared.Enums;
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using Robust.Shared.Prototypes;
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namespace Content.Client._Goobstation.Overlays;
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public sealed class BaseSwitchableOverlay<TComp> : Overlay where TComp : SwitchableVisionOverlayComponent
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{
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[Dependency] private readonly IPrototypeManager _prototype = default!;
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public override bool RequestScreenTexture => true;
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public override OverlaySpace Space => OverlaySpace.WorldSpace;
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private readonly ShaderInstance _shader;
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public TComp? Comp = null;
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public bool IsActive = true;
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public BaseSwitchableOverlay()
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{
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IoCManager.InjectDependencies(this);
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_shader = _prototype.Index<ShaderPrototype>("NightVision").InstanceUnique();
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}
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protected override void Draw(in OverlayDrawArgs args)
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{
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if (ScreenTexture is null || Comp is null || !IsActive)
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return;
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_shader.SetParameter("SCREEN_TEXTURE", ScreenTexture);
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_shader.SetParameter("tint", Comp.Tint);
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_shader.SetParameter("luminance_threshold", Comp.Strength);
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_shader.SetParameter("noise_amount", Comp.Noise);
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var worldHandle = args.WorldHandle;
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var accumulator = Math.Clamp(Comp.PulseAccumulator, 0f, Comp.PulseTime);
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var alpha = Comp.PulseTime <= 0f ? 1f : float.Lerp(1f, 0f, accumulator / Comp.PulseTime);
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worldHandle.SetTransform(Matrix3x2.Identity);
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worldHandle.UseShader(_shader);
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worldHandle.DrawRect(args.WorldBounds, Comp.Color.WithAlpha(alpha));
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worldHandle.UseShader(null);
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}
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}
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