f180f44542
Since FrozenUnderFog.Tick gets called a lot, these dictionary lookups were actually getting repeated a fair amount. Avoiding the repeated work is a minor performance improvement.
134 lines
3.5 KiB
C#
134 lines
3.5 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2013 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. For more information,
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* 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.Linq;
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using OpenRA.FileFormats;
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using OpenRA.Graphics;
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using OpenRA.Mods.RA.Buildings;
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using OpenRA.Traits;
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namespace OpenRA.Mods.RA
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{
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public class FrozenUnderFogInfo : ITraitInfo, Requires<BuildingInfo>, Requires<RenderSpritesInfo>
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{
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public readonly bool StartsRevealed = false;
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public object Create(ActorInitializer init) { return new FrozenUnderFog(init, this); }
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}
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public class FrozenUnderFog : IRenderModifier, IVisibilityModifier, ITick, ITickRender, ISync
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{
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[Sync] public int VisibilityHash;
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bool initialized, startsRevealed;
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readonly CPos[] footprint;
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Lazy<IToolTip> tooltip;
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Lazy<Health> health;
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Dictionary<Player, bool> visible;
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Dictionary<Player, FrozenActor> frozen;
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public FrozenUnderFog(ActorInitializer init, FrozenUnderFogInfo info)
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{
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// Spawned actors (e.g. building husks) shouldn't be revealed
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startsRevealed = info.StartsRevealed && !init.Contains<ParentActorInit>();
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footprint = FootprintUtils.Tiles(init.self).ToArray();
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tooltip = Exts.Lazy(() => init.self.TraitsImplementing<IToolTip>().FirstOrDefault());
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tooltip = Exts.Lazy(() => init.self.TraitsImplementing<IToolTip>().FirstOrDefault());
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health = Exts.Lazy(() => init.self.TraitOrDefault<Health>());
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frozen = new Dictionary<Player, FrozenActor>();
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visible = init.world.Players.ToDictionary(p => p, p => false);
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}
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public bool IsVisible(Actor self, Player byPlayer)
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{
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return byPlayer == null || visible[byPlayer];
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}
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public void Tick(Actor self)
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{
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if (self.Destroyed)
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return;
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VisibilityHash = 0;
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foreach (var p in self.World.Players)
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{
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var isVisible = false;
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foreach (var pos in footprint)
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{
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if (p.Shroud.IsVisible(pos))
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{
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isVisible = true;
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break;
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}
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}
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visible[p] = isVisible;
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if (isVisible)
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VisibilityHash += p.ClientIndex;
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}
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if (!initialized)
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{
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foreach (var p in self.World.Players)
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{
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visible[p] |= startsRevealed;
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p.PlayerActor.Trait<FrozenActorLayer>().Add(frozen[p] = new FrozenActor(self, footprint));
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}
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initialized = true;
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}
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foreach (var player in self.World.Players)
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{
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if (!visible[player])
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continue;
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var actor = frozen[player];
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actor.Owner = self.Owner;
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if (health.Value != null)
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{
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actor.HP = health.Value.HP;
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actor.DamageState = health.Value.DamageState;
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}
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if (tooltip.Value != null)
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{
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actor.TooltipName = tooltip.Value.Name();
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actor.TooltipOwner = tooltip.Value.Owner();
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}
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}
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}
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public void TickRender(WorldRenderer wr, Actor self)
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{
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if (self.Destroyed || !initialized || !visible.Any(v => v.Value))
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return;
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IRenderable[] renderables = null;
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foreach (var player in self.World.Players)
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if (visible[player])
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{
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// Lazily generate a copy of the underlying data.
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if (renderables == null)
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renderables = self.Render(wr).ToArray();
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frozen[player].Renderables = renderables;
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}
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}
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public IEnumerable<IRenderable> ModifyRender(Actor self, WorldRenderer wr, IEnumerable<IRenderable> r)
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{
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return IsVisible(self, self.World.RenderPlayer) ? r : SpriteRenderable.None;
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}
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}
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} |