public void Draw(ICanvasAnimatedControl sender, CanvasDrawingSession drawingSession)
{
if (currentThunder == null)
{
return;
}
// 保护原先画布的混合模式
var previousBlend = drawingSession.Blend;
drawingSession.Blend = blendState;
var builder = new CanvasPathBuilder(sender);
builder.BeginFigure(0, 0);
for (int i = 0; i < currentThunder.LifeLong; i++)
{
builder.AddLine(currentThunder.Path[i].X, currentThunder.Path[i].Y);
}
builder.EndFigure(CanvasFigureLoop.Open);
builder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
// Draw the particle.
var path = CanvasGeometry.CreatePath(builder);
var NormalizeLifeTime = currentThunder.TimeSinceStart / currentThunder.Duration;
byte opacity = (byte)((NormalizeLifeTime - 1) * (NormalizeLifeTime - 1) * 255);
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
clds.DrawGeometry(path, currentThunder.Position, Color.FromArgb((byte)(0.75f * opacity), 255, 255, 255), 6 * currentThunder.Luminace);
}
var lightAmount = 20.6f * currentThunder.Luminace * (NormalizeLifeTime - 1) * (NormalizeLifeTime - 1);
blur.Source = cl;
blur.BlurAmount = lightAmount;
drawingSession.DrawImage(blur);
drawingSession.DrawGeometry(path, currentThunder.Position, Color.FromArgb(opacity, 255, 240, 180), 2 * currentThunder.Luminace);
drawingSession.Blend = previousBlend;
if (NormalizeLifeTime > 1)
{
currentThunder = null;
}
}
public void Draw(ICanvasAnimatedControl sender, CanvasDrawingSession drawingSession)
{
if (currentThunder == null)
{
return;
}
// 保护原先画布的混合模式
var previousBlend = drawingSession.Blend;
drawingSession.Blend = blendState;
var builder = new CanvasPathBuilder(sender);
builder.BeginFigure(0, 0);
for (int i = 0; i < currentThunder.LifeLong; i++)
{
builder.AddLine(currentThunder.Path[i].X, currentThunder.Path[i].Y);
}
builder.EndFigure(CanvasFigureLoop.Open);
builder.SetSegmentOptions(CanvasFigureSegmentOptions.ForceRoundLineJoin);
// Draw the particle.
var path = CanvasGeometry.CreatePath(builder);
var NormalizeLifeTime = currentThunder.TimeSinceStart / currentThunder.Duration;
byte opacity = (byte)((NormalizeLifeTime - 1) * (NormalizeLifeTime - 1) * 255);
CanvasCommandList cl = new CanvasCommandList(sender);
using (CanvasDrawingSession clds = cl.CreateDrawingSession())
{
clds.DrawGeometry(path, currentThunder.Position, Color.FromArgb((byte)(0.75f * opacity), 255, 255, 255), 6 * currentThunder.Luminace);
}
var lightAmount = 20.6f * currentThunder.Luminace * (NormalizeLifeTime - 1) * (NormalizeLifeTime - 1);
blur.Source = cl;
blur.BlurAmount = lightAmount;
drawingSession.DrawImage(blur);
drawingSession.DrawGeometry(path, currentThunder.Position, Color.FromArgb(opacity, 255, 240, 180), 2 * currentThunder.Luminace);
drawingSession.Blend = previousBlend;
if (NormalizeLifeTime > 1)
{
currentThunder = null;
}
}
/// <summary>
/// 在任意位置，生成一道闪电
/// </summary>
/// <param name="size"></param>
public void Generate(Vector2 size)
{
currentThunder = //thunders[Tools.Random.Next(16)];
new Thunder(Tools.RandomBetween(minDuration, maxDuration), size);
currentThunder.Generate(size);
}
/// <summary>
/// 在任意位置，生成一道闪电
/// </summary>
/// <param name="size"></param>
public void Generate(Vector2 size)
{
currentThunder = //thunders[Tools.Random.Next(16)];
new Thunder(Tools.RandomBetween(minDuration, maxDuration), size);
currentThunder.Generate(size);
}
