62 lines
2.0 KiB
C#
62 lines
2.0 KiB
C#
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using System.Collections.Generic;
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using UnityEditor.AssetImporters;
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using UnityEngine;
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using UnityEngine.U2D;
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using UnityEditor.U2D.Aseprite.Common;
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namespace UnityEditor.U2D.Aseprite
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{
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internal static class SpriteAtlasGeneration
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{
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public static void Generate(
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AssetImportContext ctx,
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AsepriteImporter importer,
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string assetName)
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{
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var atlas = CreateDefaultSpriteAtlas();
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var textures = GetTextures(ctx);
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var texturesToPack = new Object[textures.Count];
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for (var i = 0; i < textures.Count; ++i)
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texturesToPack[i] = textures[i];
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atlas.Add(texturesToPack);
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atlas.name = $"{assetName}_Atlas";
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InternalEditorBridge.RegisterAndPackSpriteAtlas(atlas, ctx, importer, null);
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ctx.AddObjectToAsset(atlas.name, atlas);
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}
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static SpriteAtlas CreateDefaultSpriteAtlas()
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{
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var spriteAtlas = new SpriteAtlas();
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InternalEditorBridge.SetSpriteAtlasToV2(spriteAtlas);
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spriteAtlas.SetTextureSettings(new SpriteAtlasTextureSettings()
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{
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filterMode = FilterMode.Point,
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anisoLevel = 0,
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generateMipMaps = false,
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sRGB = true,
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});
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var platformSettings = new TextureImporterPlatformSettings();
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PlatformSettingsUtilities.SetupPlatformSettingsWithDefaultVales(platformSettings);
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spriteAtlas.SetPlatformSettings(platformSettings);
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return spriteAtlas;
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}
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static List<Texture2D> GetTextures(AssetImportContext ctx)
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{
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var assetObjects = new List<Object>();
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ctx.GetObjects(assetObjects);
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var textures = new List<Texture2D>();
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foreach (var obj in assetObjects)
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{
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if (obj is Texture2D texture)
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textures.Add(texture);
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}
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return textures;
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}
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}
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}
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