112 lines
3.1 KiB
C#
112 lines
3.1 KiB
C#
// Copyright (c) 2012-2024 Wojciech Figat. All rights reserved.
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using System;
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namespace FlaxEngine
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{
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partial struct SpriteHandle
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{
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/// <summary>
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/// Invalid sprite handle.
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/// </summary>
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public static SpriteHandle Invalid;
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/// <summary>
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/// Initializes a new instance of the <see cref="Sprite"/> struct.
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/// </summary>
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/// <param name="atlas">The atlas.</param>
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/// <param name="index">The index.</param>
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public SpriteHandle(SpriteAtlas atlas, int index)
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{
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Atlas = atlas;
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Index = index;
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}
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/// <summary>
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/// Returns true if sprite is valid.
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/// </summary>
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public bool IsValid => Atlas != null && Index != -1;
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/// <summary>
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/// Gets or sets the sprite name.
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/// </summary>
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[NoSerialize]
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public string Name
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{
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get
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{
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if (Atlas == null)
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throw new InvalidOperationException("Cannot use invalid sprite.");
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return Atlas.GetSprite(Index).Name;
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}
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set
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{
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if (Atlas == null)
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throw new InvalidOperationException("Cannot use invalid sprite.");
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var sprite = Atlas.GetSprite(Index);
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sprite.Name = value;
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Atlas.SetSprite(Index, ref sprite);
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}
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}
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/// <summary>
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/// Gets or sets the sprite location (in pixels).
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/// </summary>
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[NoSerialize]
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public Float2 Location
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{
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get => Area.Location * Atlas.Size;
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set
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{
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var area = Area;
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area.Location = value / Atlas.Size;
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Area = area;
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}
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}
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/// <summary>
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/// Gets or sets the sprite size (in pixels).
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/// </summary>
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[NoSerialize]
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public Float2 Size
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{
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get
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{
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if (Atlas == null)
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throw new InvalidOperationException("Cannot use invalid sprite.");
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Atlas.GetSpriteArea(Index, out var area);
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return area.Size * Atlas.Size;
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}
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set
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{
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var area = Area;
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area.Size = value / Atlas.Size;
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Area = area;
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}
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}
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/// <summary>
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/// Gets or sets the sprite area in atlas (in normalized atlas coordinates [0;1]).
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/// </summary>
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[NoSerialize]
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public Rectangle Area
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{
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get
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{
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if (Atlas == null)
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throw new InvalidOperationException("Cannot use invalid sprite.");
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Atlas.GetSpriteArea(Index, out var area);
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return area;
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}
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set
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{
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if (Atlas == null)
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throw new InvalidOperationException("Cannot use invalid sprite.");
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var sprite = Atlas.GetSprite(Index);
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sprite.Area = value;
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Atlas.SetSprite(Index, ref sprite);
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}
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}
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}
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}
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