/// <summary>
/// 画小时数字
/// </summary>
/// <param name="radius">半径</param>
/// <returns></returns>
private async Task DrawHourNumberAsync(double radius)
{
await _context.SaveAsync();
//await _context.TranslateAsync(radius, radius);
await _context.BeginPathAsync();
await _context.SetFontAsync("18px Arial");
await _context.SetFillStyleAsync("#000");
await _context.SetTextAlignAsync(TextAlign.Center);
await _context.SetTextBaselineAsync(TextBaseline.Middle);
List <Task> tasks = new List <Task>();
for (int i = 1; i <= 12; i++)
{
tasks.Add(DrawOneHourNumberAsync(i, radius));
}
await Task.WhenAll(tasks);
await _context.RestoreAsync();
}
private async Task GameOver()
{
await _context.SetFontAsync("48px serif");
await _context.SetTextAlignAsync(TextAlign.Center);
await _context.FillTextAsync("GAME OVER", _gameWidth / 2, _gameHeight / 2 - 48);
}
public async ValueTask Render(GameContext game, Canvas2DContext context)
{
var y = (double)game.Display.Size.Height / 2;
var x = (double)game.Display.Size.Width / 2;
await context.SetFillStyleAsync("#fff").ConfigureAwait(false);
await context.SetFontAsync("40px verdana").ConfigureAwait(false);
await context.SetTextAlignAsync(TextAlign.Center).ConfigureAwait(false);
await context.FillTextAsync("Blazeroids!", x, y).ConfigureAwait(false);
await context.SetFontAsync("28px verdana").ConfigureAwait(false);
await context.FillTextAsync("press Enter to start", x, y + 40)
.ConfigureAwait(false);
}
private async Task BuildCanvas()
{
if (context == null)
{
context = await canvasReference.CreateCanvas2DAsync();
await context.SetTextAlignAsync(TextAlign.Center);
await context.SetTextBaselineAsync(TextBaseline.Middle);
}
await context.ClearRectAsync(0, 0, 150, 150);
if (loading)
{
await context.FillTextAsync("Loading...", 75, 75);
return;
}
Point drawPosition;
if (character.HairBelowBody != null)
{
drawPosition = CalculateDrawPosition(character.HairBelowBodyPosition, character.HairBelowBody);
await context.DrawImageAsync(HairBelowBodyRef, drawPosition.X, drawPosition.Y);
}
drawPosition = CalculateDrawPosition(character.BodyPosition, character.Body);
await context.DrawImageAsync(BodyRef, drawPosition.X, drawPosition.Y);
if (character.Mail != null)
{
drawPosition = CalculateDrawPosition(character.MailPosition, character.Mail);
await context.DrawImageAsync(MailRef, drawPosition.X, drawPosition.Y);
}
drawPosition = CalculateDrawPosition(character.HeadPosition, character.Head);
await context.DrawImageAsync(HeadRef, drawPosition.X, drawPosition.Y);
if (character.EarType != EarType.Normal)
{
drawPosition = CalculateDrawPosition(character.EarPosition, character.Ear);
await context.DrawImageAsync(EarRef, drawPosition.X, drawPosition.Y);
}
if (character.HasFace)
{
drawPosition = CalculateDrawPosition(character.FacePosition, character.Face);
await context.DrawImageAsync(FaceRef, drawPosition.X, drawPosition.Y);
}
if (character.Hair != null)
{
drawPosition = CalculateDrawPosition(character.HairPosition, character.Hair);
await context.DrawImageAsync(HairRef, drawPosition.X, drawPosition.Y);
}
if (character.HairOverHead != null)
{
drawPosition = CalculateDrawPosition(character.HairOverHeadPosition, character.HairOverHead);
await context.DrawImageAsync(HairOverHeadRef, drawPosition.X, drawPosition.Y);
}
if (character.BackHair != null)
{
drawPosition = CalculateDrawPosition(character.BackHairPosition, character.BackHair);
await context.DrawImageAsync(BackHairRef, drawPosition.X, drawPosition.Y);
}
if (character.BackHairBelowCap != null)
{
drawPosition = CalculateDrawPosition(character.BackHairBelowCapPosition, character.BackHairBelowCap);
await context.DrawImageAsync(BackHairBelowCapRef, drawPosition.X, drawPosition.Y);
}
if (character.Pants != null)
{
drawPosition = CalculateDrawPosition(character.PantsPosition, character.Pants);
await context.DrawImageAsync(PantsRef, drawPosition.X, drawPosition.Y);
}
if (character.Arm != null)
{
drawPosition = CalculateDrawPosition(character.ArmPosition, character.Arm);
await context.DrawImageAsync(ArmRef, drawPosition.X, drawPosition.Y);
}
if (character.Hand != null)
{
drawPosition = CalculateDrawPosition(character.HandPosition, character.Hand);
await context.DrawImageAsync(HandRef, drawPosition.X, drawPosition.Y);
}
if (character.MailArm != null)
{
drawPosition = CalculateDrawPosition(character.MailArmPosition, character.MailArm);
await context.DrawImageAsync(MailArmRef, drawPosition.X, drawPosition.Y);
}
}