public async ValueTask Render(GameContext game, Canvas2DContext context)
{
await context.SaveAsync();
await context.TranslateAsync(_transform.World.Position.X, _transform.World.Position.Y);
await context.RotateAsync(_transform.World.Rotation);
await context.DrawImageAsync(Sprite.Source, -Sprite.Origin.X, -Sprite.Origin.Y,
Sprite.Size.Width, Sprite.Size.Height);
await context.RestoreAsync();
}
/// <summary>
/// 画时针
/// </summary>
/// <param name="hour">小时</param>
/// <param name="radius">半径</param>
/// <returns></returns>
private async Task DrawHourHandAsync(int hour, double radius)
{
await _context.SaveAsync();
await _context.TranslateAsync(radius, radius);
double theta = (hour - 3) * 2 * Math.PI / 12;
await _context.RotateAsync((float)theta);
await _context.BeginPathAsync();
await _context.MoveToAsync(-15, -5);
await _context.LineToAsync(-15, 5);
await _context.LineToAsync(radius * 0.6, 1);
await _context.LineToAsync(radius * 0.6, -1);
await _context.FillAsync();
await _context.RestoreAsync();
}
public async ValueTask Render(GameContext game, Canvas2DContext context)
{
if (null == Animation || !this.Owner.Enabled)
{
return;
}
await context.SaveAsync();
await context.TranslateAsync(_transform.World.Position.X + (MirrorVertically ? Animation.FrameSize.Width : 0f), _transform.World.Position.Y);
await context.RotateAsync(_transform.World.Rotation);
await context.ScaleAsync(_transform.World.Scale.X *(MirrorVertically ? -1f : 1f), _transform.World.Scale.Y);
await context.DrawImageAsync(Animation.ImageRef,
_currFramePosX, _currFramePosY,
Animation.FrameSize.Width, Animation.FrameSize.Height,
Animation.HalfFrameSize.Width, Animation.HalfFrameSize.Height,
-Animation.FrameSize.Width, -Animation.FrameSize.Height);
await context.RestoreAsync();
}
public async ValueTask Render(GameContext game, Canvas2DContext context)
{
if (!this.Owner.Enabled)
{
return;
}
await context.SaveAsync();
await context.TranslateAsync(_transform.World.Position.X, _transform.World.Position.Y);
await context.RotateAsync(_transform.World.Rotation);
await context.ScaleAsync(_transform.World.Scale.X, _transform.World.Scale.Y);
await context.DrawImageAsync(Sprite.ElementRef,
Sprite.Bounds.X, Sprite.Bounds.Y,
Sprite.Bounds.Width, Sprite.Bounds.Height,
Sprite.Origin.X, Sprite.Origin.Y,
-Sprite.Bounds.Width, -Sprite.Bounds.Height);
await context.RestoreAsync();
}
public void Apply(RotateNode rotateNode)
{
_canvas2DContext.RotateAsync(rotateNode.Angle);
}