/// <summary>
/// Downloads all files asynchronously.
/// </summary>
public async Task DownloadAllAsync()
{
var skillTreeTask = DownloadSkillTreeToFileAsync();
var treeString = await skillTreeTask;
var inTree = new PassiveTreeViewModel(treeString);
var spritesTask = DownloadSkillNodeSpritesAsync(inTree);
var assetsTask = DownloadAssetsAsync(inTree);
await Task.WhenAll(spritesTask, assetsTask);
}
/// <summary>
/// Downloads the asset images mentioned in the provided tree asynchronously.
/// Existing files are not overriden.
/// </summary>
/// <param name="inTree"></param>
/// <param name="reportProgress">If specified, it is called to set this method's progress as a value
/// from 0 to 1.</param>
/// <returns></returns>
internal async Task DownloadAssetsAsync(PassiveTreeViewModel inTree, Action <double>?reportProgress = null)
{
Directory.CreateDirectory(_tempAssetsPath);
var zoomLevel = inTree.ImageZoomLevels[inTree.MaxImageZoomLevelIndex].ToString(CultureInfo.InvariantCulture);
var perAssetProgress = 1.0 / inTree.Assets.Count;
var progress = 0.0;
foreach (var asset in inTree.Assets)
{
var path = _tempAssetsPath + asset.Key + ".png";
var url = asset.Value.GetValueOrDefault(zoomLevel, () => asset.Value.Values.First());
await DownloadAsync(url, path);
progress += perAssetProgress;
reportProgress?.Invoke(progress);
}
}
/// <summary>
/// Downloads the node sprite images mentioned in the provided tree asynchronously.
/// Existing files are not overriden.
/// </summary>
/// <param name="inTree"></param>
/// <param name="reportProgress">If specified, it is called to set this method's progress as a value
/// from 0 to 1.</param>
/// <returns></returns>
internal async Task DownloadSkillNodeSpritesAsync(PassiveTreeViewModel inTree,
Action <double>?reportProgress = null)
{
Directory.CreateDirectory(_tempAssetsPath);
var perSpriteProgress = 1.0 / inTree.SkillSprites.Count;
var progress = 0.0;
foreach (var obj in inTree.SkillSprites)
{
var sprite = obj.Value[inTree.MaxImageZoomLevelIndex];
var path = _tempAssetsPath + sprite.FileName;
var url = SpriteUrl + sprite.FileName;
if (path.Contains('?'))
{
path = path.Remove(path.IndexOf('?'));
}
await DownloadAsync(url, path);
progress += perSpriteProgress;
reportProgress?.Invoke(progress);
}
}
