/// <summary>
/// 游戏主循环
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void OnGameLoop(object sender, EventArgs e)
{
var span = DateTime.Now - startTime;
var costTime = (span.Hours * 60 * 60 * 1000 + span.Minutes * 60 * 1000 + span.Seconds * 1000 + span.Milliseconds) / 1000d;
tbTimer.Text = string.Format("您已坚持:{0} 秒", costTime);
hero.Updata();
hero.Draw();
foreach (var oneBullet in bullets)
{
oneBullet.Update();
oneBullet.Draw();
if (hero.CollisionCircle(oneBullet.CenterOfCircle))
{
GameCanvas.Children.Remove(oneBullet);
HeroDied(); //被子弹击中
}
}
#region 闪电
if ((DateTime.Now - lastLightningTime).Seconds >= secondSpan)
{
lastLightningTime = DateTime.Now;
secondSpan = GetRandomNum(3, 7); //3-7秒产生一次闪电
var posY = GetRandomNum(0, 550);
var light = new Lightning();
Canvas.SetLeft(light, 0);
Canvas.SetTop(light, posY);
Canvas.SetZIndex(light, -100);
GameCanvas.Children.Add(light);
light.Fire += () =>
{
var lightY = Canvas.GetTop(light) + 50;
if (hero.nowPosition.Y < lightY + 25 && hero.nowPosition.Y > lightY - 25)
{
HeroDied(); //被闪电击中
}
};
light.Completed += () =>
{
GameCanvas.Children.Remove(light); //闪电播放完成后
};
light.Play(); //开始闪电
}
#endregion
}