86 lines
2.1 KiB
C#
86 lines
2.1 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2022 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.Linq;
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using OpenRA.Effects;
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using OpenRA.Graphics;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Effects
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{
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public class RevealShroudEffect : IEffect
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{
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static readonly PPos[] NoCells = Array.Empty<PPos>();
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readonly WPos pos;
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readonly Player player;
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readonly Shroud.SourceType sourceType;
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readonly WDist revealRadius;
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readonly PlayerRelationship validStances;
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readonly int duration;
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int ticks;
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public RevealShroudEffect(WPos pos, WDist radius, Shroud.SourceType type, Player forPlayer, PlayerRelationship stances, int delay = 0, int duration = 50)
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{
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this.pos = pos;
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player = forPlayer;
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revealRadius = radius;
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validStances = stances;
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sourceType = type;
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this.duration = duration;
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ticks = -delay;
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}
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void AddCellsToPlayerShroud(Player p, PPos[] uv)
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{
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if (validStances.HasRelationship(player.RelationshipWith(p)))
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p.Shroud.AddSource(this, sourceType, uv);
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}
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void RemoveCellsFromPlayerShroud(Player p) { p.Shroud.RemoveSource(this); }
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PPos[] ProjectedCells(World world)
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{
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var map = world.Map;
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var range = revealRadius;
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if (range == WDist.Zero)
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return NoCells;
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return Shroud.ProjectedCellsInRange(map, pos, WDist.Zero, range).ToArray();
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}
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public void Tick(World world)
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{
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if (ticks == 0)
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{
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var cells = ProjectedCells(world);
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foreach (var p in world.Players)
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AddCellsToPlayerShroud(p, cells);
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}
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if (ticks == duration)
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{
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foreach (var p in world.Players)
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RemoveCellsFromPlayerShroud(p);
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world.AddFrameEndTask(w => w.Remove(this));
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}
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ticks++;
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}
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public IEnumerable<IRenderable> Render(WorldRenderer wr) { return SpriteRenderable.None; }
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}
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}
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