64 lines
1.7 KiB
C#
64 lines
1.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 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.Collections.Generic;
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using System.Linq;
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using OpenRA.Graphics;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common.Traits
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{
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[Desc("Palette effect used for sprinkle \"animations\" on terrain tiles.")]
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class WaterPaletteRotationInfo : ITraitInfo
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{
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public readonly HashSet<string> ExcludePalettes = new HashSet<string>();
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public object Create(ActorInitializer init) { return new WaterPaletteRotation(init.World, this); }
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}
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class WaterPaletteRotation : ITick, IPaletteModifier
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{
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readonly WaterPaletteRotationInfo info;
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readonly World world;
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float t = 0;
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public WaterPaletteRotation(World world, WaterPaletteRotationInfo info)
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{
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this.world = world;
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this.info = info;
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}
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public void Tick(Actor self) { t += .25f; }
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uint[] temp = new uint[7]; /* allocating this on the fly actually hurts our profile */
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public void AdjustPalette(IReadOnlyDictionary<string, MutablePalette> palettes)
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{
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var rotate = (int)t % 7;
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if (rotate == 0)
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return;
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foreach (var kvp in palettes)
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{
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if (info.ExcludePalettes.Contains(kvp.Key))
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continue;
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var palette = kvp.Value;
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for (var i = 0; i < 7; i++)
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temp[(rotate + i) % 7] = palette[world.TileSet.WaterPaletteRotationBase + i];
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for (var i = 0; i < 7; i++)
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palette[world.TileSet.WaterPaletteRotationBase + i] = temp[i];
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}
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}
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}
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}
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