82 lines
2.2 KiB
C#
82 lines
2.2 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\".")]
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class RotationPaletteEffectInfo : ITraitInfo
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{
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[Desc("Defines which palettes should be excluded from this effect.")]
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public readonly HashSet<string> ExcludePalettes = new HashSet<string>();
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[Desc("Don't apply the effect for these tileset IDs.")]
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public readonly string[] ExcludeTilesets = { };
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[Desc("Palette index of first RotationRange color.")]
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public readonly int RotationBase = 0x60;
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[Desc("Range of colors to rotate.")]
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public readonly int RotationRange = 7;
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[Desc("Step towards next color index per tick.")]
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public readonly float RotationStep = .25f;
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public object Create(ActorInitializer init) { return new RotationPaletteEffect(init.World, this); }
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}
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class RotationPaletteEffect : ITick, IPaletteModifier
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{
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readonly RotationPaletteEffectInfo info;
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readonly World world;
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float t = 0;
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uint[] temp;
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public RotationPaletteEffect(World world, RotationPaletteEffectInfo info)
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{
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this.world = world;
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this.info = info;
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// Allocating this on the fly actually hurts our profile
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temp = new uint[info.RotationRange];
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}
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public void Tick(Actor self)
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{
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t += info.RotationStep;
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}
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public void AdjustPalette(IReadOnlyDictionary<string, MutablePalette> palettes)
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{
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var rotate = (int)t % info.RotationRange;
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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) || info.ExcludeTilesets.Contains(world.TileSet.Id))
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continue;
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var palette = kvp.Value;
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for (var i = 0; i < info.RotationRange; i++)
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temp[(rotate + i) % info.RotationRange] = palette[info.RotationBase + i];
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for (var i = 0; i < info.RotationRange; i++)
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palette[info.RotationBase + i] = temp[i];
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}
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}
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}
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}
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