147 lines
4.7 KiB
C#
147 lines
4.7 KiB
C#
using System;
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using System.IO;
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namespace UnityEditor.U2D.Aseprite
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{
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/// <summary>
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/// Flags for layer options.
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/// </summary>
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[Flags]
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public enum LayerFlags
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{
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/// <summary>Flag set if the layer is visible</summary>
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Visible = 1,
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/// <summary>Editable - not in use flag</summary>
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Editable = 2,
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/// <summary>LockMovement - not in use flag</summary>
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LockMovement = 4,
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/// <summary>Background - not in use flag</summary>
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Background = 8,
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/// <summary>PreferLinkedCels - not in use flag</summary>
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PreferLinkedCels = 16,
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/// <summary>DisplayAsCollapsed - not in use flag</summary>
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DisplayAsCollapsed = 32,
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/// <summary>ReferenceLayer - not in use flag</summary>
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ReferenceLayer = 64
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}
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/// <summary>
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/// Layer types.
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/// </summary>
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public enum LayerTypes
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{
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/// <summary>Normal layer</summary>
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Normal = 0,
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/// <summary>Group layer</summary>
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Group = 1,
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/// <summary>Tilemap layer</summary>
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Tilemap = 2
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}
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/// <summary>
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/// Layer blend modes.
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/// </summary>
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public enum BlendModes
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{
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/// <summary>Normal blend mode</summary>
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Normal = 0,
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/// <summary>Multiply blend mode</summary>
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Multiply = 1,
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/// <summary>Screen blend mode</summary>
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Screen = 2,
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/// <summary>Overlay blend mode</summary>
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Overlay = 3,
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/// <summary>Darken blend mode</summary>
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Darken = 4,
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/// <summary>Lighten blend mode</summary>
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Lighten = 5,
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/// <summary>ColorDodge blend mode</summary>
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ColorDodge = 6,
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/// <summary>ColorBurn blend mode</summary>
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ColorBurn = 7,
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/// <summary>HardLight blend mode</summary>
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HardLight = 8,
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/// <summary>SoftLight blend mode</summary>
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SoftLight = 9,
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/// <summary>Difference blend mode</summary>
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Difference = 10,
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/// <summary>Exclusion blend mode</summary>
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Exclusion = 11,
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/// <summary>Hue blend mode</summary>
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Hue = 12,
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/// <summary>Saturation blend mode</summary>
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Saturation = 13,
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/// <summary>Color blend mode</summary>
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Color = 14,
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/// <summary>Luminosity blend mode</summary>
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Luminosity = 15,
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/// <summary>Addition blend mode</summary>
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Addition = 16,
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/// <summary>Subtract blend mode</summary>
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Subtract = 17,
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/// <summary>Divide blend mode</summary>
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Divide = 18
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}
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/// <summary>
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/// Parsed representation of an Aseprite Layer chunk.
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/// </summary>
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public class LayerChunk : BaseChunk
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{
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/// <inheritdoc />
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public override ChunkTypes chunkType => ChunkTypes.Layer;
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/// <summary>
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/// Layer option flags.
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/// </summary>
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public LayerFlags flags { get; private set; }
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/// <summary>
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/// Type of layer.
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/// </summary>
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public LayerTypes layerType { get; private set; }
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/// <summary>
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/// The child level is used to show the relationship of this layer with the last one read.
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/// </summary>
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public ushort childLevel { get; private set; }
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/// <summary>
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/// Layer blend mode.
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/// </summary>
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public BlendModes blendMode { get; private set; }
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/// <summary>Layer opacity (0 = transparent, 255 = opaque).</summary>
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public byte opacity { get; private set; }
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/// <summary>
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/// Layer name.
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/// </summary>
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public string name { get; private set; }
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/// <summary>
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/// Tileset index (Only available for Tilemap layers).
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/// </summary>
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public uint tileSetIndex { get; private set; }
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internal LayerChunk(uint chunkSize) : base(chunkSize) { }
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/// <summary>
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/// Read and store the chunk data.
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/// </summary>
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/// <param name="reader">The active binary reader of the file.</param>
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protected override void InternalRead(BinaryReader reader)
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{
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flags = (LayerFlags)reader.ReadUInt16();
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layerType = (LayerTypes)reader.ReadUInt16();
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childLevel = reader.ReadUInt16();
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var defaultLayerWidth = reader.ReadUInt16();
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var defaultLayerHeight = reader.ReadUInt16();
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blendMode = (BlendModes)reader.ReadUInt16();
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opacity = reader.ReadByte();
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// Not in use bytes
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for (var i = 0; i < 3; ++i)
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reader.ReadByte();
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name = AsepriteUtilities.ReadString(reader);
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if (layerType == LayerTypes.Tilemap)
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tileSetIndex = reader.ReadUInt32();
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}
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}
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}
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