76 lines
2.3 KiB
C#
76 lines
2.3 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2020 The OpenRA Developers (see AUTHORS)
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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.Collections.Generic;
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using System.Linq;
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Traits.Render
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{
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[Desc("Clones the actor sprite with another palette below it.")]
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public class WithShadowInfo : ConditionalTraitInfo
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{
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[PaletteReference]
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public readonly string Palette = "shadow";
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[Desc("Shadow position offset relative to actor position (ground level).")]
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public readonly WVec Offset = WVec.Zero;
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[Desc("Shadow Z offset relative to actor sprite.")]
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public readonly int ZOffset = -5;
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public override object Create(ActorInitializer init) { return new WithShadow(this); }
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}
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public class WithShadow : ConditionalTrait<WithShadowInfo>, IRenderModifier
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{
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readonly WithShadowInfo info;
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public WithShadow(WithShadowInfo info)
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: base(info)
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{
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this.info = info;
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}
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IEnumerable<IRenderable> IRenderModifier.ModifyRender(Actor self, WorldRenderer wr, IEnumerable<IRenderable> r)
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{
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if (IsTraitDisabled)
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return r;
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// Contrails shouldn't cast shadows
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var height = self.World.Map.DistanceAboveTerrain(self.CenterPosition).Length;
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var shadowSprites = r.Where(s => !s.IsDecoration)
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.Select(a => a.WithPalette(wr.Palette(info.Palette))
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.OffsetBy(info.Offset - new WVec(0, 0, height))
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.WithZOffset(a.ZOffset + (height + info.ZOffset))
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.AsDecoration());
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return shadowSprites.Concat(r);
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}
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IEnumerable<Rectangle> IRenderModifier.ModifyScreenBounds(Actor self, WorldRenderer wr, IEnumerable<Rectangle> bounds)
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{
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foreach (var r in bounds)
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yield return r;
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if (IsTraitDisabled)
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yield break;
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var height = self.World.Map.DistanceAboveTerrain(self.CenterPosition).Length;
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var offset = wr.ScreenPxOffset(info.Offset - new WVec(0, 0, height));
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foreach (var r in bounds)
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yield return new Rectangle(r.X + offset.X, r.Y + offset.Y, r.Width, r.Height);
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}
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}
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}
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