//--------------------
internal void WriteAtlasItems(Dictionary <ushort, AtlasItem> items)
{
//total number
int totalNum = items.Count;
#if DEBUG
if (totalNum >= ushort.MaxValue)
{
throw new NotSupportedException();
}
#endif
_writer.Write((ushort)ObjectKind.GlyphList);
//count
_writer.Write((ushort)totalNum);
//
foreach (var kp in items)
{
ushort uniqueName = kp.Key;
AtlasItem g = kp.Value;
//1. unique uint16 name
_writer.Write((ushort)uniqueName);
//2. area, left,top,width,height
_writer.Write((ushort)g.Left);
_writer.Write((ushort)g.Top);
_writer.Write((ushort)g.Width);
_writer.Write((ushort)g.Height);
//3. texture offset
_writer.Write((short)g.TextureXOffset); //short
_writer.Write((short)g.TextureYOffset); //short
}
}
/// <summary>
/// try get atlas item by unique name
/// </summary>
/// <param name="uniqueUint16Name"></param>
/// <param name="atlasItem"></param>
/// <returns></returns>
public bool TryGetItem(ushort uniqueUint16Name, out AtlasItem atlasItem)
{
if (!_atlasItems.TryGetValue(uniqueUint16Name, out atlasItem))
{
atlasItem = null;
return(false);
}
return(true);
}
/// <summary>
/// try get atlas item by unique name
/// </summary>
/// <param name="itemName"></param>
/// <param name="atlasItem"></param>
/// <returns></returns>
public bool TryGetItem(string itemName, out AtlasItem atlasItem)
{
//get img item by unique name
if (ImgUrlDict != null &&
ImgUrlDict.TryGetValue(itemName, out ushort foundIndex) &&
_atlasItems.TryGetValue(foundIndex, out atlasItem))
{
return(true);
}
atlasItem = null;
return(false);
}
public static Dictionary <ushort, AtlasItem> CloneLocationWithOffset(SimpleBitmapAtlas org, int dx, int dy)
{
Dictionary <ushort, AtlasItem> cloneDic = new Dictionary <ushort, AtlasItem>();
foreach (var kp in org._atlasItems)
{
AtlasItem orgMapData = kp.Value;
cloneDic.Add(kp.Key, new AtlasItem(orgMapData.UniqueUint16Name)
{
Left = orgMapData.Left + dx,
Top = orgMapData.Top + dy,
//
Width = orgMapData.Width,
Height = orgMapData.Height,
TextureXOffset = orgMapData.TextureXOffset,
TextureYOffset = orgMapData.TextureYOffset
});
}
return(cloneDic);
}
void ReadAtlasItems(BinaryReader reader)
{
ushort itemCount = reader.ReadUInt16();
for (int i = 0; i < itemCount; ++i)
{
//read each glyph map info
var item = new AtlasItem(reader.ReadUInt16());
//2. area
item.Left = reader.ReadUInt16();
item.Top = reader.ReadUInt16();
item.Width = reader.ReadUInt16();
item.Height = reader.ReadUInt16();
//3. texture offset
item.TextureXOffset = reader.ReadInt16();
item.TextureYOffset = reader.ReadInt16();
_atlas.AddAtlasItem(item);
}
}
internal void AddAtlasItem(AtlasItem item)
{
_atlasItems.Add(item.UniqueUint16Name, item);
}
/// <summary> /// try get atlas item by unique name /// </summary> /// <param name="uniqueUint16Name"></param> /// <param name="atlasItem"></param> /// <returns></returns> public bool TryGetItem(ushort uniqueUint16Name, out AtlasItem atlasItem) => _atlasItems.TryGetValue(uniqueUint16Name, out atlasItem);