5f97e2de5a
This is a more natural representation than int that allows removal of casts in many places that require uint. Additionally, we can change the internal representation from long to uint, making the Color struct smaller. Since arrays of colors are common, this can save on memory.
96 lines
2.9 KiB
C#
96 lines
2.9 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;
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using System.Collections.Generic;
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using OpenRA.FileFormats;
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using OpenRA.FileSystem;
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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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[TraitLocation(SystemActors.World | SystemActors.EditorWorld)]
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[Desc("Load a PNG and use its embedded palette.")]
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sealed class PaletteFromPngInfo : TraitInfo, ITilesetSpecificPaletteInfo, IProvidesCursorPaletteInfo
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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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[Desc("If defined, load the palette only for this tileset.")]
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public readonly string Tileset = null;
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[FieldLoader.Require]
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[Desc("Filename to load")]
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public readonly string Filename = null;
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[Desc("Map listed indices to shadow. Ignores previous color.")]
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public readonly int[] ShadowIndex = Array.Empty<int>();
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public readonly bool AllowModifiers = true;
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[Desc("Whether this palette is available for cursors.")]
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public readonly bool CursorPalette = false;
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public override object Create(ActorInitializer init) { return new PaletteFromPng(init.World, this); }
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string ITilesetSpecificPaletteInfo.Tileset => Tileset;
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string IProvidesCursorPaletteInfo.Palette => CursorPalette ? Name : null;
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ImmutablePalette IProvidesCursorPaletteInfo.ReadPalette(IReadOnlyFileSystem fileSystem)
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{
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var png = new Png(fileSystem.Open(Filename));
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if (png.Palette == null)
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throw new InvalidOperationException($"Unable to load palette `{Name}` from non-paletted png `{Filename}`");
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var colors = new uint[Palette.Size];
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for (var i = 0; i < png.Palette.Length; i++)
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colors[i] = png.Palette[i].ToArgb();
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return new ImmutablePalette(colors);
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}
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}
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sealed class PaletteFromPng : ILoadsPalettes, IProvidesAssetBrowserPalettes
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{
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readonly World world;
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readonly PaletteFromPngInfo info;
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public PaletteFromPng(World world, PaletteFromPngInfo 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 LoadPalettes(WorldRenderer wr)
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{
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if (info.Tileset != null && !string.Equals(info.Tileset, world.Map.Tileset, StringComparison.InvariantCultureIgnoreCase))
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return;
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wr.AddPalette(info.Name, ((IProvidesCursorPaletteInfo)info).ReadPalette(world.Map), info.AllowModifiers);
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}
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public IEnumerable<string> PaletteNames
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{
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get
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{
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// Only expose the palette if it is available for the shellmap's tileset (which is a requirement for its use).
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if (info.Tileset == null || info.Tileset == world.Map.Rules.TerrainInfo.Id)
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yield return info.Name;
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}
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}
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}
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}
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