58 lines
1.8 KiB
C#
58 lines
1.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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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 OpenRA.Graphics;
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using OpenRA.Mods.Common.Traits;
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using OpenRA.Traits;
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namespace OpenRA.Mods.D2k.Traits
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{
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[TraitLocation(SystemActors.World | SystemActors.EditorWorld)]
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sealed class D2kFogPaletteInfo : TraitInfo
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{
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[PaletteDefinition]
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[FieldLoader.Require]
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[Desc("Internal palette name")]
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public readonly string Name = null;
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[PaletteReference]
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[FieldLoader.Require]
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[Desc("The name of the shroud palette to base off.")]
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public readonly string BasePalette = null;
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[Desc("Allow palette modifiers to change the palette.")]
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public readonly bool AllowModifiers = true;
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public override object Create(ActorInitializer init) { return new D2kFogPalette(this); }
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}
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sealed class D2kFogPalette : ILoadsPalettes, IProvidesAssetBrowserPalettes
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{
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readonly D2kFogPaletteInfo info;
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public D2kFogPalette(D2kFogPaletteInfo info) { this.info = info; }
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public void LoadPalettes(WorldRenderer wr)
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{
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var basePalette = wr.Palette(info.BasePalette).Palette;
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// Bit twiddling is equivalent to unpacking RGB channels, dividing them by 2, subtracting from 255, then repacking
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var fog = new uint[Palette.Size];
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for (var i = 0; i < Palette.Size; i++)
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fog[i] = ~((basePalette[i] >> 1) & 0x007F7F7F);
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wr.AddPalette(info.Name, new ImmutablePalette(fog), info.AllowModifiers);
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}
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public IEnumerable<string> PaletteNames { get { yield return info.Name; } }
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}
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}
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