//====== ctors
protected ScreenTransition(ITextArrayReader prevGameModuleScreenSnapshot, TextCanvas canvas, GameTime gameTime) : base(gameTime)
{
Verify.NotNull(prevGameModuleScreenSnapshot, nameof(prevGameModuleScreenSnapshot));
this.canvas = Verify.NotNull(canvas, nameof(canvas));
if (prevGameModuleScreenSnapshot.Size.Equals(canvas.Size) == false)
{
throw new ArgumentException($"Sizes are not equal.");
}
this.prevGameModuleScreenSnapshot = TextImage.CreateCopyFrom(prevGameModuleScreenSnapshot);
}
//====== public methods
public ITextArrayReader RenderImage()
{
byte[] digits09 = Value.ToString().Select(x => byte.Parse(x.ToString())).ToArray();
int imageWidth = (digits09.Length * 4) - 1;
var valueImage = new TextImage(new Size(imageWidth, 5));
for (int i = 0; i < digits09.Length; i++)
{
var digitImage = TextImage.CreateCopyFrom(BigDigits.GetDigit(digits09[i]));
var digitPosition = new Point(i * 4, 0);
digitImage.Canvas.Colorize(ForeColor, null);
valueImage.Canvas.DrawImage(digitImage, digitPosition);
}
return(valueImage);
}