be290cfabd
Additionally, internally renamed VisualBounds to SelectionOverlayBounds to avoid confusion with RenderBounds. This step was necessary to prevent actors with selectable area smaller than their graphics to be removed too early from ScreenMap even though part of the graphics should still be visible. RA cruisers were a prime example, but to a lesser extent several other actors were affected as well. This separation also serves as preparation to determine the final RenderBounds from multiple source bounds later, to fix the remaining ScreenMap issues (building 'bibs', aircraft shadows).
78 lines
2.4 KiB
C#
78 lines
2.4 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2017 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;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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namespace OpenRA.Traits
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{
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public static class SelectableExts
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{
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public static int SelectionPriority(this ActorInfo a)
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{
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var selectableInfo = a.TraitInfoOrDefault<SelectableInfo>();
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return selectableInfo != null ? selectableInfo.Priority : int.MinValue;
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}
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const int PriorityRange = 30;
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public static int SelectionPriority(this Actor a)
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{
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var basePriority = a.Info.TraitInfo<SelectableInfo>().Priority;
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var lp = a.World.LocalPlayer;
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if (a.Owner == lp || lp == null)
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return basePriority;
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switch (lp.Stances[a.Owner])
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{
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case Stance.Ally: return basePriority - PriorityRange;
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case Stance.Neutral: return basePriority - 2 * PriorityRange;
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case Stance.Enemy: return basePriority - 3 * PriorityRange;
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default:
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throw new InvalidOperationException();
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}
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}
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public static Actor WithHighestSelectionPriority(this IEnumerable<Actor> actors, int2 selectionPixel)
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{
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return actors.MaxByOrDefault(a => CalculateActorSelectionPriority(a.Info, a.SelectableBounds, selectionPixel));
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}
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public static FrozenActor WithHighestSelectionPriority(this IEnumerable<FrozenActor> actors, int2 selectionPixel)
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{
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return actors.MaxByOrDefault(a => CalculateActorSelectionPriority(a.Info, a.SelectableBounds, selectionPixel));
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}
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static long CalculateActorSelectionPriority(ActorInfo info, Rectangle bounds, int2 selectionPixel)
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{
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var centerPixel = new int2(bounds.X, bounds.Y);
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var pixelDistance = (centerPixel - selectionPixel).Length;
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return ((long)-pixelDistance << 32) + info.SelectionPriority();
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}
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static readonly Actor[] NoActors = { };
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public static IEnumerable<Actor> SubsetWithHighestSelectionPriority(this IEnumerable<Actor> actors)
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{
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return actors.GroupBy(x => x.SelectionPriority())
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.OrderByDescending(g => g.Key)
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.Select(g => g.AsEnumerable())
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.DefaultIfEmpty(NoActors)
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.FirstOrDefault();
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}
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}
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}
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