68 lines
2.4 KiB
C#
68 lines
2.4 KiB
C#
using Content.Client.Interfaces.Parallax;
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using Robust.Client.Graphics;
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using Robust.Client.Graphics.Drawing;
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using Robust.Client.Graphics.Overlays;
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using Robust.Client.Graphics.Shaders;
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using Robust.Client.Interfaces.Graphics.ClientEye;
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using Robust.Client.Interfaces.Graphics.Overlays;
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using Robust.Shared.Interfaces.Map;
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using Robust.Shared.IoC;
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using Robust.Shared.Maths;
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using Robust.Shared.Prototypes;
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namespace Content.Client.Parallax
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{
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public class ParallaxOverlay : Overlay
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{
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#pragma warning disable 649
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[Dependency] private readonly IParallaxManager _parallaxManager;
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[Dependency] private readonly IEyeManager _eyeManager;
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[Dependency] private readonly IPrototypeManager _prototypeManager;
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[Dependency] private readonly IMapManager _mapManager;
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#pragma warning restore 649
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public override bool AlwaysDirty => true;
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private const float Slowness = 0.5f;
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private Texture _parallaxTexture;
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public override OverlaySpace Space => OverlaySpace.ScreenSpaceBelowWorld;
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public ParallaxOverlay() : base(nameof(ParallaxOverlay))
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{
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IoCManager.InjectDependencies(this);
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Shader = _prototypeManager.Index<ShaderPrototype>("unshaded").Instance();
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if (_parallaxManager.ParallaxTexture == null)
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{
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_parallaxManager.OnTextureLoaded += texture => _parallaxTexture = texture;
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}
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else
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{
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_parallaxTexture = _parallaxManager.ParallaxTexture;
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}
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}
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protected override void Draw(DrawingHandleBase handle)
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{
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if (_parallaxTexture == null)
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{
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return;
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}
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var screenHandle = (DrawingHandleScreen) handle;
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var (sizeX, sizeY) = _parallaxTexture.Size;
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var (posX, posY) = _eyeManager.ScreenToWorld(Vector2.Zero).ToWorld(_mapManager).Position;
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var (ox, oy) = (Vector2i) new Vector2(-posX / Slowness, posY / Slowness);
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ox = MathHelper.Mod(ox, sizeX);
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oy = MathHelper.Mod(oy, sizeY);
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screenHandle.DrawTexture(_parallaxTexture, new Vector2(ox, oy));
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screenHandle.DrawTexture(_parallaxTexture, new Vector2(ox - sizeX, oy));
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screenHandle.DrawTexture(_parallaxTexture, new Vector2(ox, oy - sizeY));
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screenHandle.DrawTexture(_parallaxTexture, new Vector2(ox - sizeX, oy - sizeY));
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}
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}
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}
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