aa121dcb2f
Use the covariant return type feature of C# 9 to allow method overrides to be more specific about their return type. By exposing this information, e.g. for Widget.Clone(), callers will have more information. This allows various casts to be removed as the information is now available within the type system.
94 lines
2.8 KiB
C#
94 lines
2.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.Linq;
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using OpenRA.Graphics;
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using OpenRA.Mods.Common.Graphics;
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using OpenRA.Mods.Common.Traits;
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using OpenRA.Primitives;
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using OpenRA.Widgets;
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namespace OpenRA.Mods.Common.Widgets
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{
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public class ActorPreviewWidget : Widget
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{
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public bool Animate = false;
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public Func<float> GetScale = () => 1f;
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readonly WorldRenderer worldRenderer;
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readonly WorldViewportSizes viewportSizes;
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IActorPreview[] preview = Array.Empty<IActorPreview>();
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public int2 PreviewOffset { get; private set; }
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public int2 IdealPreviewSize { get; private set; }
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[ObjectCreator.UseCtor]
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public ActorPreviewWidget(ModData modData, WorldRenderer worldRenderer)
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{
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viewportSizes = modData.Manifest.Get<WorldViewportSizes>();
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this.worldRenderer = worldRenderer;
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}
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protected ActorPreviewWidget(ActorPreviewWidget other)
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: base(other)
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{
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preview = other.preview;
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worldRenderer = other.worldRenderer;
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viewportSizes = other.viewportSizes;
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}
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public override ActorPreviewWidget Clone() { return new ActorPreviewWidget(this); }
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public void SetPreview(ActorInfo actor, TypeDictionary td)
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{
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var init = new ActorPreviewInitializer(actor, worldRenderer, td);
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preview = actor.TraitInfos<IRenderActorPreviewInfo>()
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.SelectMany(rpi => rpi.RenderPreview(init))
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.ToArray();
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// Calculate the preview bounds
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var r = preview.SelectMany(p => p.ScreenBounds(worldRenderer, WPos.Zero));
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var b = r.Union();
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IdealPreviewSize = new int2((int)(b.Width * viewportSizes.DefaultScale), (int)(b.Height * viewportSizes.DefaultScale));
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PreviewOffset = -new int2((int)(b.Left * viewportSizes.DefaultScale), (int)(b.Top * viewportSizes.DefaultScale)) - IdealPreviewSize / 2;
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}
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IFinalizedRenderable[] renderables;
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public override void PrepareRenderables()
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{
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var scale = GetScale() * viewportSizes.DefaultScale;
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var origin = RenderOrigin + PreviewOffset + new int2(RenderBounds.Size.Width / 2, RenderBounds.Size.Height / 2);
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renderables = preview
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.SelectMany(p => p.RenderUI(worldRenderer, origin, scale))
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.OrderBy(WorldRenderer.RenderableZPositionComparisonKey)
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.Select(r => r.PrepareRender(worldRenderer))
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.ToArray();
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}
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public override void Draw()
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{
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Game.Renderer.EnableAntialiasingFilter();
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foreach (var r in renderables)
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r.Render(worldRenderer);
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Game.Renderer.DisableAntialiasingFilter();
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}
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public override void Tick()
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{
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if (Animate)
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foreach (var p in preview)
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p.Tick();
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}
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}
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}
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