92 lines
2.6 KiB
C#
92 lines
2.6 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.IO;
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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using OpenRA.Traits;
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namespace OpenRA.Mods.Common
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{
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[Desc("Define a palette by swapping palette indices.")]
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public class IndexedPaletteInfo : TraitInfo, IRulesetLoaded
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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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[Desc("The name of the palette to base off.")]
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public readonly string BasePalette = null;
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[FieldLoader.Require]
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[Desc("Indices from BasePalette to be swapped with ReplaceIndex.")]
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public readonly int[] Index = { };
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[FieldLoader.Require]
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[Desc("Indices from BasePalette to replace from Index.")]
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public readonly int[] ReplaceIndex = { };
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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 IndexedPalette(this); }
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public void RulesetLoaded(Ruleset rules, ActorInfo ai)
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{
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if (Index.Length != ReplaceIndex.Length)
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throw new YamlException("ReplaceIndex length does not match Index length for palette {0}".F(Name));
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}
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}
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public class IndexedPalette : ILoadsPalettes
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{
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readonly IndexedPaletteInfo info;
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public IndexedPalette(IndexedPaletteInfo info)
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{
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this.info = info;
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}
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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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var pal = new ImmutablePalette(basePalette, new IndexedColorRemap(basePalette, info.Index, info.ReplaceIndex));
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wr.AddPalette(info.Name, pal, info.AllowModifiers);
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}
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}
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public class IndexedColorRemap : IPaletteRemap
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{
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Dictionary<int, int> replacements = new Dictionary<int, int>();
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IPalette basePalette;
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public IndexedColorRemap(IPalette basePalette, int[] ramp, int[] remap)
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{
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this.basePalette = basePalette;
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if (ramp.Length != remap.Length)
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throw new InvalidDataException("ramp and remap lengths do no match.");
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for (var i = 0; i < ramp.Length; i++)
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replacements[ramp[i]] = remap[i];
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}
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public Color GetRemappedColor(Color original, int index)
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{
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int c;
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return replacements.TryGetValue(index, out c)
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? basePalette.GetColor(c) : original;
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}
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}
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}
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