68 lines
2.1 KiB
C#
68 lines
2.1 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.Collections.Generic;
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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.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("Renders polygon for mouse bounds (usually defined by " + nameof(Interactable) + " or " + nameof(Selectable) + ").",
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"Put on actor for which the polygon should be rendered.")]
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public class RenderMouseBoundsInfo : TraitInfo, Requires<InteractableInfo>
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{
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[Desc("Color to use for the polygon lines.")]
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public readonly Color PolygonLineColor = Color.Green;
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public override object Create(ActorInitializer init) { return new RenderMouseBounds(init.Self, this); }
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}
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public class RenderMouseBounds : IRenderAnnotations
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{
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readonly IMouseBounds mouseBounds;
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readonly RenderMouseBoundsInfo info;
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public RenderMouseBounds(Actor self, RenderMouseBoundsInfo info)
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{
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mouseBounds = self.Trait<IMouseBounds>();
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this.info = info;
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}
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bool IRenderAnnotations.SpatiallyPartitionable => true;
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IEnumerable<IRenderable> IRenderAnnotations.RenderAnnotations(Actor self, WorldRenderer wr)
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{
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if (self.World.FogObscures(self))
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return Enumerable.Empty<IRenderable>();
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return DrawDecorations(self, wr);
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}
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IEnumerable<IRenderable> DrawDecorations(Actor self, WorldRenderer wr)
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{
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var polygon = mouseBounds.MouseoverBounds(self, wr);
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var vertices = new WPos[polygon.Vertices.Length];
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for (var i = 0; i < polygon.Vertices.Length; i++)
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{
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var screenVertex = polygon.Vertices[i];
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vertices[i] = wr.ProjectedPosition(screenVertex);
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}
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yield return new PolygonAnnotationRenderable(vertices, vertices[0], 1, info.PolygonLineColor);
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}
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}
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}
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