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97 lines
2.8 KiB
C#
97 lines
2.8 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using osu.Framework.Allocation;
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using osu.Framework.Graphics.Shaders;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Graphics;
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using osuTK;
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using osuTK.Graphics;
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using osu.Framework.Graphics.Sprites;
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using osu.Framework.Graphics.Rendering;
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namespace osu.Game.Tests.Visual.Background
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{
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public partial class TestSceneTriangleBorderShader : OsuTestScene
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{
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private readonly TriangleBorder border;
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public TestSceneTriangleBorderShader()
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{
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Children = new Drawable[]
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{
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new Box
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{
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RelativeSizeAxes = Axes.Both,
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Colour = Color4.DarkGreen
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},
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border = new TriangleBorder
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Size = new Vector2(100)
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}
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};
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}
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protected override void LoadComplete()
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{
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base.LoadComplete();
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AddSliderStep("Thickness", 0f, 1f, 0.02f, t => border.Thickness = t);
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}
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private partial class TriangleBorder : Sprite
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{
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private float thickness = 0.02f;
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public float Thickness
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{
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get => thickness;
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set
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{
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thickness = value;
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Invalidate(Invalidation.DrawNode);
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}
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}
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[BackgroundDependencyLoader]
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private void load(ShaderManager shaders, IRenderer renderer)
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{
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TextureShader = shaders.Load(VertexShaderDescriptor.TEXTURE_2, "TriangleBorder");
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Texture = renderer.WhitePixel;
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}
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protected override DrawNode CreateDrawNode() => new TriangleBorderDrawNode(this);
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private class TriangleBorderDrawNode : SpriteDrawNode
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{
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public new TriangleBorder Source => (TriangleBorder)base.Source;
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public TriangleBorderDrawNode(TriangleBorder source)
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: base(source)
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{
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}
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private float thickness;
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public override void ApplyState()
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{
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base.ApplyState();
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thickness = Source.thickness;
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}
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public override void Draw(IRenderer renderer)
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{
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TextureShader.GetUniform<float>("thickness").UpdateValue(ref thickness);
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base.Draw(renderer);
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}
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protected override bool CanDrawOpaqueInterior => false;
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}
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}
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}
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}
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