147 lines
3.8 KiB
C#
147 lines
3.8 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.Effects;
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using OpenRA.Graphics;
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using OpenRA.Mods.Common.Traits;
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namespace OpenRA.Mods.Common.Effects
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{
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public class RallyPointIndicator : IEffect, IEffectAboveShroud, IEffectAnnotation
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{
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readonly Actor building;
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readonly RallyPoint rp;
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readonly Animation flag;
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readonly Animation circles;
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readonly ExitInfo[] exits;
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List<WPos> targetLineNodes = new List<WPos> { };
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List<CPos> cachedLocations;
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public RallyPointIndicator(Actor building, RallyPoint rp, ExitInfo[] exits)
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{
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this.building = building;
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this.rp = rp;
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this.exits = exits;
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if (rp.Info.Image != null)
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{
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flag = new Animation(building.World, rp.Info.Image);
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flag.PlayRepeating(rp.Info.FlagSequence);
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circles = new Animation(building.World, rp.Info.Image);
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circles.Play(rp.Info.CirclesSequence);
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}
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UpdateTargetLineNodes(building.World);
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}
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void IEffect.Tick(World world)
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{
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flag?.Tick();
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circles?.Tick();
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if (cachedLocations == null || !cachedLocations.SequenceEqual(rp.Path))
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{
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UpdateTargetLineNodes(world);
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circles?.Play(rp.Info.CirclesSequence);
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}
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if (!building.IsInWorld || building.IsDead)
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world.AddFrameEndTask(w => w.Remove(this));
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}
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void UpdateTargetLineNodes(World world)
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{
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cachedLocations = new List<CPos>(rp.Path);
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targetLineNodes.Clear();
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foreach (var c in cachedLocations)
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targetLineNodes.Add(world.Map.CenterOfCell(c));
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if (targetLineNodes.Count == 0)
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return;
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var exitPos = building.CenterPosition;
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// Find closest exit
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var dist = int.MaxValue;
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foreach (var exit in exits)
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{
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var ep = building.CenterPosition + exit.SpawnOffset;
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var len = (targetLineNodes[0] - ep).Length;
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if (len < dist)
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{
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dist = len;
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exitPos = ep;
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}
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}
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targetLineNodes.Insert(0, exitPos);
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}
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IEnumerable<IRenderable> IEffect.Render(WorldRenderer wr) { return SpriteRenderable.None; }
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IEnumerable<IRenderable> IEffectAboveShroud.RenderAboveShroud(WorldRenderer wr)
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{
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if (!building.IsInWorld || !building.Owner.IsAlliedWith(building.World.LocalPlayer))
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return SpriteRenderable.None;
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if (!building.World.Selection.Contains(building))
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return SpriteRenderable.None;
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var renderables = SpriteRenderable.None;
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if (targetLineNodes.Count > 0 && (circles != null || flag != null))
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{
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var palette = wr.Palette(rp.PaletteName);
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if (circles != null)
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renderables = renderables.Concat(circles.Render(targetLineNodes.Last(), palette));
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if (flag != null)
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renderables = renderables.Concat(flag.Render(targetLineNodes.Last(), palette));
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}
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return renderables;
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}
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IEnumerable<IRenderable> IEffectAnnotation.RenderAnnotation(WorldRenderer wr)
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{
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if (Game.Settings.Game.TargetLines == TargetLinesType.Disabled)
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return SpriteRenderable.None;
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if (!building.IsInWorld || !building.Owner.IsAlliedWith(building.World.LocalPlayer))
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return SpriteRenderable.None;
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if (!building.World.Selection.Contains(building))
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return SpriteRenderable.None;
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if (targetLineNodes.Count == 0)
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return SpriteRenderable.None;
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return RenderInner(wr);
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}
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IEnumerable<IRenderable> RenderInner(WorldRenderer wr)
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{
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var prev = targetLineNodes[0];
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foreach (var pos in targetLineNodes.Skip(1))
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{
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var targetLine = new[] { prev, pos };
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prev = pos;
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yield return new TargetLineRenderable(targetLine, building.Owner.Color, rp.Info.LineWidth);
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}
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}
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}
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}
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