/// <summary>
/// 爆炸位置
/// </summary>
/// <param name="top"></param>
/// <param name="left"></param>
public void Explode(double top, double down, double left, double right)
{
//如果超過目前最大粒子數量
if (ParticleCount > SystemConfig.MaxParticleCount)
{
return;
}
//粒子確定會生產
ParticleCount++;
//如果設定有被更改過
if (_optionsVersion != OptionPageGeneral.OptionsVersion)
{
InitializeOptions();
}
//X的落下位置
int position_X = (int)(Random.NextDouble() * (right - left));
//取得飄動偏移量
var leftVelocity = Random.NextDouble() * SnowConfig.MaxSideVelocity * Random.NextSignSwap();
//左邊動畫
_leftAnimation.From = position_X;
_leftAnimation.To = position_X - (_animationSecond * leftVelocity);
//上面動畫
_topAnimation.From = top;
_topAnimation.To = top + ShowExtension.FallDownHeight(top, down);
//透明動畫
_opacityAnimation.From = SnowConfig.StartAlpha;
_opacityAnimation.To = 0;
//移動動畫時間(秒)
_animationSecond = ShowExtension.AnimationTimeByFallDownTime(top, down);
//算出消失 HH:MM:SS
var fallDownTimeSpan = TimeSpan.FromMilliseconds(_animationSecond * 1000);
//動畫時間
_leftAnimation.Duration = fallDownTimeSpan;
_topAnimation.Duration = fallDownTimeSpan;
_opacityAnimation.Duration = fallDownTimeSpan;
//設定到圖片上面
_image.Visibility = Visibility.Visible;
_image.BeginAnimation(Canvas.LeftProperty, _leftAnimation);
_image.BeginAnimation(Canvas.TopProperty, _topAnimation);
_image.BeginAnimation(Image.OpacityProperty, _opacityAnimation);
}
private void InitializeOptions()
{
Color brushColor = SnowConfig.Color;
if (SnowConfig.MixGetColorFromEnvironment > 0)
{
var svc = Package.GetGlobalService(typeof(SVsUIShell)) as IVsUIShell5;
brushColor = ShowExtension.MixColor(brushColor, (svc.GetThemedWPFColor(EnvironmentColors.PanelTextColorKey)), (1 - SnowConfig.MixGetColorFromEnvironment), SnowConfig.MixGetColorFromEnvironment);
}
else if (SnowConfig.MixRandomColor > 0)
{
brushColor = ShowExtension.MixColor(brushColor, (Random.NextColor()), (1 - SnowConfig.MixRandomColor), SnowConfig.MixRandomColor);
}
else
{
brushColor = SnowConfig.Color;
}
//設定雪的顯示，圖片或是圓點
_image = ShowExtension.GetImage(brushColor, SnowConfig.SnowSize);
// Add the image to the adornment layer and make it relative to the viewport
adornmentLayer.AddAdornment(AdornmentPositioningBehavior.ViewportRelative,
null,
null,
_image,
null);
//初始化
_leftAnimation = new DoubleAnimation();
_topAnimation = new DoubleAnimation();
_opacityAnimation = new DoubleAnimation();
//設定震幅(原先是)0.0005*37=0.0175
_topAnimation.EasingFunction = new BackEase {
Amplitude = SnowConfig.Amplitude
};
//完成事件
_opacityAnimation.Completed += (sender, args) => OnAnimationComplete();
_optionsVersion = OptionPageGeneral.OptionsVersion;
}